{"id":4814,"date":"2025-12-19T17:52:15","date_gmt":"2025-12-19T09:52:15","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=4814"},"modified":"2025-12-19T17:52:21","modified_gmt":"2025-12-19T09:52:21","slug":"a-comprehensive-guide-to-bga-package-layout","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/","title":{"rendered":"Guide complet sur la disposition, la gestion thermique et la fabrication des bo\u00eetiers BGA"},"content":{"rendered":"<p>Depuis son introduction dans les ann\u00e9es 1980, le bo\u00eetier BGA (Ball Grid Array) est rapidement devenu la forme d'emballage pr\u00e9f\u00e9r\u00e9e pour les circuits int\u00e9gr\u00e9s \u00e0 haute densit\u00e9 en raison de sa haute densit\u00e9 de broches, de ses excellentes performances \u00e9lectriques et thermiques et de sa fiabilit\u00e9. \u00c9voluant depuis les premiers BGA standard avec un pas de 1,27 mm jusqu'aux bo\u00eetiers actuels de type \"wafer-level chip scale\" (WLCSP) avec un pas de 0,4 mm ou m\u00eame plus fin, la technologie BGA continue de favoriser la miniaturisation et la haute performance des dispositifs \u00e9lectroniques.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-1.jpg\" alt=\"Bo\u00eetier BGA\" class=\"wp-image-4823\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#Current_Design_Challenges\" >D\u00e9fis actuels en mati\u00e8re de conception<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#BGA_Pad_Layout_From_Theoretical_Calculation_to_Engineering_Implementation\" >Implantation de blocs BGA : Du calcul th\u00e9orique \u00e0 la mise en \u0153uvre technique<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#21_Scientific_Calculation_of_Pad_Size\" >2.1 Calcul scientifique de la taille du tampon<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#22_Pitch_Design_and_Escape_Channel_Planning\" >2.2 Conception des pas et planification des canaux d'\u00e9vacuation<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#Thermal_Relief_Pads_Fine-Tuned_Balance_in_Thermal_Management\" >Coussins de d\u00e9charge thermique : Un \u00e9quilibre parfait dans la gestion thermique<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#31_Thermodynamic_Principles_and_Parameter_Optimization\" >3.1 Principes thermodynamiques et optimisation des param\u00e8tres<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#32_TOPFAST_Manufacturing_Validation\" >3.2 Validation de la fabrication de TOPFAST<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#Escape_Routing_From_Traditional_Dog-Bone_to_Advanced_Via-in-Pad\" >Itin\u00e9raire d'\u00e9vasion : De l'os de chien traditionnel \u00e0 la Via-in-Pad avanc\u00e9e<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#41_Limits_and_Optimization_of_Dog-Bone_Fanout\" >4.1 Limites et optimisation du Fanout en os de chien<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#42_Via-in-Pad_Technology\" >4.2 Technologie Via-in-Pad<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#Multi-Layer_Stackup_and_Signal_Integrity_Co-Design\" >Empilage multicouche et co-conception de l'int\u00e9grit\u00e9 du signal<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#51_Stackup_Architecture_Planning\" >5.1 Planification de l'architecture des piles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#52_Impedance_Control_and_Crosstalk_Suppression\" >5.2 Contr\u00f4le de l'imp\u00e9dance et suppression de la diaphonie<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#Manufacturing_Processes_and_Reliability_Validation\" >Proc\u00e9d\u00e9s de fabrication et validation de la fiabilit\u00e9<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#61_DFM_Checklist\" >6.1 Liste de contr\u00f4le DFM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#62_Reliability_Test_Items\" >6.2 \u00c9l\u00e9ments du test de fiabilit\u00e9<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#Future_Trends_Heterogeneous_Integration_and_Advanced_Packaging\" >Tendances futures : Int\u00e9gration h\u00e9t\u00e9rog\u00e8ne et conditionnement avanc\u00e9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/#5_Common_Q_As_on_BGA_Package_PCB_Design\" >5 questions fr\u00e9quentes sur la conception de circuits imprim\u00e9s en bo\u00eetier BGA<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Current_Design_Challenges\"><\/span>D\u00e9fis actuels en mati\u00e8re de conception<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li><strong>Une densit\u00e9 de broches en hausse<\/strong>: Les processeurs modernes int\u00e8grent souvent plus de 1000 broches, avec des pas comprim\u00e9s en dessous de 0,5 mm.<\/li>\n\n<li><strong>Exigences en mati\u00e8re d'int\u00e9grit\u00e9 du signal<\/strong>: Les interfaces \u00e0 haute vitesse (PCIe, DDR) imposent des exigences strictes en mati\u00e8re de contr\u00f4le de l'imp\u00e9dance et de suppression de la diaphonie.<\/li>\n\n<li><strong>Complexit\u00e9 de la gestion thermique<\/strong>: L'augmentation de la densit\u00e9 de puissance exacerbe les risques de surchauffe locale.<\/li>\n\n<li><strong>Limites du processus de fabrication<\/strong>: Les proc\u00e9d\u00e9s traditionnels de fabrication de circuits imprim\u00e9s sont confront\u00e9s \u00e0 des d\u00e9fis tels que les microvias, le remplissage des via et la pr\u00e9cision de l'alignement.<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"BGA_Pad_Layout_From_Theoretical_Calculation_to_Engineering_Implementation\"><\/span>Implantation de blocs BGA : Du calcul th\u00e9orique \u00e0 la mise en \u0153uvre technique<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21_Scientific_Calculation_of_Pad_Size\"><\/span>2.1 Calcul scientifique de la taille du tampon<span class=\"ez-toc-section-end\"><\/span><\/h3><p>La relation entre le diam\u00e8tre de la pastille (d) et le diam\u00e8tre de la bille de soudure (<em>d<\/em>ball) n'est pas un ratio fixe mais doit \u00eatre bas\u00e9 sur le mod\u00e8le de volume de soudure :<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"314\" height=\"54\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image.png\" alt=\"\" class=\"wp-image-4816\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image.png 314w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-300x52.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-18x3.png 18w\" sizes=\"auto, (max-width: 314px) 100vw, 314px\" \/><\/figure><\/div><p>O\u00f9 ?<\/p><ul class=\"wp-block-list\"><li>(k) : Coefficient de mouillage (g\u00e9n\u00e9ralement 0,8-0,9)<\/li>\n\n<li>(processus) : Compensation de la tol\u00e9rance de fabrication (typiquement 0,05-0,1 mm)<\/li><\/ul><p><strong>Exp\u00e9rience pratique TOPFAST<\/strong>: Pour un BGA au pas de 0,5 mm, nous recommandons :<\/p><ul class=\"wp-block-list\"><li>Diam\u00e8tre de la pastille de 0,25-0,28 mm pour un diam\u00e8tre de la boule de soudure de 0,3 mm.<\/li>\n\n<li>Utilisation de la conception NSMD (Non-Solder Mask Defined), avec une ouverture du masque de soudure sup\u00e9rieure de 0,05 \u00e0 0,1 mm \u00e0 celle de la pastille.<\/li>\n\n<li>Ajout de marquages en s\u00e9rigraphie dans la zone d'identification A1 pour faciliter l'alignement de l'assemblage.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_Pitch_Design_and_Escape_Channel_Planning\"><\/span>2.2 Conception des pas et planification des canaux d'\u00e9vacuation<span class=\"ez-toc-section-end\"><\/span><\/h3><p>La capacit\u00e9 de routage des \u00e9chapp\u00e9es d\u00e9termine la faisabilit\u00e9 de la conception du BGA. Le nombre de canaux de routage (<em>N<\/em>escape) peut \u00eatre estim\u00e9e par :<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"318\" height=\"70\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-1.png\" alt=\"\" class=\"wp-image-4817\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-1.png 318w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-1-300x66.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-1-18x4.png 18w\" sizes=\"auto, (max-width: 318px) 100vw, 318px\" \/><\/figure><\/div><p>O\u00f9 ?<\/p><ul class=\"wp-block-list\"><li>(p) : Hauteur de la balle<\/li>\n\n<li>(w) : Largeur de la trace<\/li>\n\n<li>(s) : Espacement des traces<\/li><\/ul><p><strong>Strat\u00e9gie d'allocation multicouche<\/strong>:<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Rang\u00e9es de BGA<\/th><th>Couches minimales de signaux<\/th><th>Allocation recommand\u00e9e des couches<\/th><\/tr><\/thead><tbody><tr><td>\u22645 rangs<\/td><td>2 couches<\/td><td>Couche sup\u00e9rieure + Couche int\u00e9rieure 1<\/td><\/tr><tr><td>6-8 rangs<\/td><td>3-4 couches<\/td><td>Couche sup\u00e9rieure + 2-3 couches int\u00e9rieures<\/td><\/tr><tr><td>\u22659 rangs<\/td><td>5+ couches<\/td><td>N\u00e9cessite un HDI ou des vias enterr\u00e9s<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Thermal_Relief_Pads_Fine-Tuned_Balance_in_Thermal_Management\"><\/span>Coussins de d\u00e9charge thermique : Un \u00e9quilibre parfait dans la gestion thermique<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"31_Thermodynamic_Principles_and_Parameter_Optimization\"><\/span>3.1 Principes thermodynamiques et optimisation des param\u00e8tres<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Les coussinets de d\u00e9charge thermique r\u00e9gulent le flux de chaleur en contr\u00f4lant la surface de la section transversale de la connexion en cuivre. Leur mod\u00e8le de r\u00e9sistance thermique est le suivant<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"306\" height=\"76\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-2.png\" alt=\"\" class=\"wp-image-4818\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-2.png 306w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-2-300x76.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-2-18x4.png 18w\" sizes=\"auto, (max-width: 306px) 100vw, 306px\" \/><\/figure><\/div><p>O\u00f9 ?<\/p><ul class=\"wp-block-list\"><li>(n) : Nombre de rayons (g\u00e9n\u00e9ralement 2-4)<\/li>\n\n<li>(w) : Largeur du rayon (0.15-0.25mm)<\/li>\n\n<li>(t) : Epaisseur du cuivre<\/li>\n\n<li>(L) : Longueur du chemin thermique<\/li><\/ul><p><strong>Lignes directrices pour l'optimisation<\/strong>:<\/p><ol class=\"wp-block-list\"><li><strong>Broches d'alimentation<\/strong>: 4 rayons, largeur 0,2-0,25mm<\/li>\n\n<li><strong>Broches de terre<\/strong>2-4 rayons variables, ajust\u00e9s en fonction des besoins de dissipation de la chaleur<\/li>\n\n<li><strong>Broches de signal<\/strong>: G\u00e9n\u00e9ralement, raccordement direct, sauf exigences thermiques particuli\u00e8res.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"32_TOPFAST_Manufacturing_Validation\"><\/span>3.2 Validation de la fabrication de TOPFAST<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Les tests d'imagerie thermique r\u00e9v\u00e8lent :<\/p><ul class=\"wp-block-list\"><li>Les diff\u00e9rences de temp\u00e9rature au niveau des coins peuvent atteindre 15 \u00e0 20\u00b0C, ce qui n\u00e9cessite un renforcement sp\u00e9cial de la conception thermique.<\/li>\n\n<li>Le rendement de la soudure diminue de 8-12% lorsque la largeur des rayons est &lt;0,15 mm.<\/li>\n\n<li>Il est recommand\u00e9 d'ajouter une d\u00e9charge thermique autour des plots d'alimentation\/de mise \u00e0 la terre ; utiliser une connexion directe pour les plots de signal.<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-2.jpg\" alt=\"Bo\u00eetier BGA\" class=\"wp-image-4824\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Escape_Routing_From_Traditional_Dog-Bone_to_Advanced_Via-in-Pad\"><\/span>Itin\u00e9raire d'\u00e9vasion : De l'os de chien traditionnel \u00e0 la Via-in-Pad avanc\u00e9e<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"41_Limits_and_Optimization_of_Dog-Bone_Fanout\"><\/span>4.1 Limites et optimisation du Fanout en os de chien<span class=\"ez-toc-section-end\"><\/span><\/h3><p>La disposition traditionnelle en os de chien est adapt\u00e9e \u00e0 des pas de BGA \u22650,8 mm. Sa contrainte principale est la suivante :<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"232\" height=\"56\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-4.png\" alt=\"\" class=\"wp-image-4820\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-4.png 232w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-4-18x4.png 18w\" sizes=\"auto, (max-width: 232px) 100vw, 232px\" \/><\/figure><\/div><p>O\u00f9 (c) est le jeu minimum (g\u00e9n\u00e9ralement 0,1 mm).<\/p><p><strong>Techniques d'optimisation<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Utiliser des coussinets ovales pour prolonger le col de la connexion.<\/li>\n\n<li>Contr\u00f4ler le diam\u00e8tre de l'orifice entre 0,2 et 0,25 mm.<\/li>\n\n<li>Utiliser le routage en quinconce sur les couches internes pour am\u00e9liorer l'utilisation des canaux.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"42_Via-in-Pad_Technology\"><\/span>4.2 Technologie Via-in-Pad<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Lorsque le pas \u22640,65mm, le via-in-pad devient une technologie n\u00e9cessaire. TOPFAST propose deux types de solutions :<\/p><p><strong>Type VII Microvia (norme IPC-4761)<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Per\u00e7age au laser, diam\u00e8tre 0,1-0,15 mm<\/li>\n\n<li>Remplie de r\u00e9sine + planarisation de la calotte de cuivre<\/li>\n\n<li>Prise en charge de la structure de via aveugle, r\u00e9duisant les interf\u00e9rences entre les couches<\/li><\/ul><p><strong>Consid\u00e9rations relatives \u00e0 la conception<\/strong>:<\/p><ol class=\"wp-block-list\"><li><strong>Compensation des coussins d'air<\/strong>: La surface occup\u00e9e par l'interface doit \u00eatre inf\u00e9rieure \u00e0 20% du diam\u00e8tre du tampon.<\/li>\n\n<li><strong>Traitement des masques de soudure<\/strong>: Utiliser le bouchage du masque de soudure ou la planarisation du remplissage.<\/li>\n\n<li><strong>Compromis sur les co\u00fbts<\/strong>: Les microvias augmentent les co\u00fbts de 15-25% mais am\u00e9liorent la densit\u00e9 de routage de 2 \u00e0 3 fois.<\/li><\/ol><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Multi-Layer_Stackup_and_Signal_Integrity_Co-Design\"><\/span>Empilage multicouche et co-conception de l'int\u00e9grit\u00e9 du signal<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"51_Stackup_Architecture_Planning\"><\/span>5.1 <a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/the-ultimate-guide-to-pcb-stack-up-design-2025-updated-edition\/\">Empilage<\/a> Planification de l'architecture<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Relation empirique entre le nombre de broches du BGA (<em>N<\/em>broches) et le nombre de couches n\u00e9cessaires (<em>N<\/em>couches) :<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"307\" height=\"79\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-5.png\" alt=\"\" class=\"wp-image-4821\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-5.png 307w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-5-300x77.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/image-5-18x5.png 18w\" sizes=\"auto, (max-width: 307px) 100vw, 307px\" \/><\/figure><\/div><p><strong>Exemple de configuration d'une carte \u00e0 8 couches<\/strong>:<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Espacement recommand\u00e9 entre les couches &gt;5mm)<\/th><th>Fonction<\/th><th>\u00c9paisseur<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>L1<\/td><td>Signal + Pads<\/td><td>0,1 mm<\/td><td>Acheminer les 2 rangs les plus \u00e9loign\u00e9s<\/td><\/tr><tr><td>L2<\/td><td>Plan de masse<\/td><td>0,2 mm<\/td><td>Plan solide<\/td><\/tr><tr><td>L3\/4<\/td><td>Couches de signaux<\/td><td>0,15 mm<\/td><td>Rang\u00e9es d'itin\u00e9raires 3-6<\/td><\/tr><tr><td>L5\/6<\/td><td>Plans d'action<\/td><td>0,2 mm<\/td><td>Plans de joint<\/td><\/tr><tr><td>L7<\/td><td>Couche de signal<\/td><td>0,15 mm<\/td><td>Acheminer les lignes restantes<\/td><\/tr><tr><td>L8<\/td><td>Signal + Pads<\/td><td>0,1 mm<\/td><td>Composants de la face inf\u00e9rieure<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"52_Impedance_Control_and_Crosstalk_Suppression\"><\/span>5.2 <a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/how-to-design-impedance-control-for-pcb\/\">Contr\u00f4le de l'imp\u00e9dance<\/a> et suppression de la diaphonie<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Mesures cl\u00e9s<\/strong>:<\/p><ol class=\"wp-block-list\"><li><strong>Paires diff\u00e9rentielles<\/strong>: Routage \u00e0 couplage \u00e9troit, correspondance des longueurs \u22645 mils.<\/li>\n\n<li><strong>Plans de r\u00e9f\u00e9rence<\/strong>: Veiller \u00e0 ce que les couches de signaux soient adjacentes \u00e0 des plans solides.<\/li>\n\n<li><strong>Par le biais d'un r\u00e9tro-per\u00e7age<\/strong>: Pour les signaux &gt;5GHz, \u00e9liminer les effets de stub.<\/li>\n\n<li><strong>Processus sp\u00e9cial TOPFAST<\/strong>: Permet un r\u00e9glage localis\u00e9 de l'\u00e9paisseur du di\u00e9lectrique afin d'obtenir une pr\u00e9cision d'imp\u00e9dance de \u00b17%.<\/li><\/ol><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Manufacturing_Processes_and_Reliability_Validation\"><\/span>Proc\u00e9d\u00e9s de fabrication et validation de la fiabilit\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"61_DFM_Checklist\"><\/span>6.1 <a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/complete-guide-to-pcb-design-for-manufacturability-dfm\/\">DFM<\/a> Liste de contr\u00f4le<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Tol\u00e9rance sur la taille du tampon<\/strong>\u00b10,02 mm (imagerie directe par laser)<\/li>\n\n<li><strong>Alignement du masque de soudure<\/strong>\u00b10,05 mm (\u00e0 confirmer avec le fabricant)<\/li>\n\n<li><strong>Impression de la p\u00e2te \u00e0 braser<\/strong>: Ouverture du pochoir inf\u00e9rieure de 0,05 \u00e0 0,1 mm \u00e0 celle du tampon<\/li>\n\n<li><strong>Inspection par rayons X<\/strong>: Taux de vide &lt;25% (norme IPC-A-610)<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"62_Reliability_Test_Items\"><\/span>6.2 \u00c9l\u00e9ments du test de fiabilit\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h3><p>TOPFAST a recommand\u00e9 un processus de v\u00e9rification en trois \u00e9tapes :<\/p><ol class=\"wp-block-list\"><li><strong>V\u00e9rification de l'\u00e9tape 1<\/strong>: Analyse de la microsection (via l'\u00e9paisseur du cuivre, la qualit\u00e9 du remplissage)<\/li>\n\n<li><strong>V\u00e9rification de l'\u00e9tape 2<\/strong>: Essai de cyclage thermique (-55\u00b0C~125\u00b0C, 500 cycles)<\/li>\n\n<li><strong>V\u00e9rification de l'\u00e9tape 3<\/strong>: Test de r\u00e9sistance de l'interconnexion (surveillance de la cha\u00eene en guirlande)<\/li><\/ol><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-3.jpg\" alt=\"Bo\u00eetier BGA\" class=\"wp-image-4825\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-3.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-3-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/BGA-Package-3-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Future_Trends_Heterogeneous_Integration_and_Advanced_Packaging\"><\/span>Tendances futures : Int\u00e9gration h\u00e9t\u00e9rog\u00e8ne et conditionnement avanc\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Avec le d\u00e9veloppement des technologies Chiplet et 3D-IC, l'emballage BGA \u00e9volue vers.. :<\/p><ul class=\"wp-block-list\"><li><strong>Interposeur de silicium BGA<\/strong>: Prise en charge de l'int\u00e9gration multi-puces, am\u00e9liorant la densit\u00e9 d'interconnexion par 10.<\/li>\n\n<li><strong>Substrat int\u00e9gr\u00e9 BGA<\/strong>: Passives int\u00e9gr\u00e9es, r\u00e9duisant la surface de 30-40%.<\/li>\n\n<li><strong>BGA opto\u00e9lectronique int\u00e9gr\u00e9<\/strong>: Prend en charge les canaux optiques, en d\u00e9passant les limites \u00e9lectriques.<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Pour r\u00e9ussir la conception d'un BGA, il faut passer par quatre dimensions :<\/p><ol class=\"wp-block-list\"><li><strong>Dimension \u00e9lectrique<\/strong>: Co-optimisation de l'int\u00e9grit\u00e9 du signal et de l'alimentation.<\/li>\n\n<li><strong>Dimension thermique<\/strong>: \u00c9quilibre entre les coussinets de soulagement thermique et la dissipation thermique globale.<\/li>\n\n<li><strong>Dimension m\u00e9canique<\/strong>: Correspondance CTE et soulagement du stress.<\/li>\n\n<li><strong>Dimension de la fabrication<\/strong>: Capacit\u00e9 et co\u00fbt optimaux du processus.<\/li><\/ol><p>S'appuyant sur l'exp\u00e9rience de milliers de projets BGA, TOPFAST r\u00e9sume une m\u00e9thodologie en quatre \u00e9tapes : \"Conception - Simulation - Prototype - Production de masse\", qui aide les clients \u00e0 atteindre des rendements de 90% ou plus d\u00e8s leur premi\u00e8re tentative de conception. N'oubliez pas : Le BGA \u00e0 pas fin n'est pas un chef-d'\u0153uvre technologique, mais l'intersection pr\u00e9cise des exigences du syst\u00e8me, de l'innovation en mati\u00e8re de conception et de la capacit\u00e9 de fabrication.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Common_Q_As_on_BGA_Package_PCB_Design\"><\/span>5 questions fr\u00e9quentes sur la conception de circuits imprim\u00e9s en bo\u00eetier BGA<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1766137034882\"><strong class=\"schema-faq-question\">Q : 1. Comment d\u00e9terminer la taille des pastilles BGA ?<\/strong> <p class=\"schema-faq-answer\">A : <strong>Principe fondamental :<\/strong><br\/>Taille du tampon = diam\u00e8tre de la bille de soudure \u00d7 0,85 \u00b1 compensation du processus<br\/><strong>TOPFAST Valeurs recommand\u00e9es :<\/strong><br\/>Pas de 0,5 mm : Diam\u00e8tre du tampon 0,3-0,35 mm<br\/>Pas de 0,8 mm : Diam\u00e8tre du tampon 0,4-0,45mm<br\/>Pas de 1,0 mm : Diam\u00e8tre du tampon 0,5-0,55mm<br\/><strong>Consid\u00e9rations cl\u00e9s :<\/strong><br\/>Utiliser la conception NSMD (ouverture du masque de soudure sup\u00e9rieure de 0,05 mm \u00e0 celle de la pastille)<br\/>Doit confirmer l'exactitude du processus avec le fabricant<br\/>Un marquage clair de la position A1 est essentiel<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1766137064380\"><strong class=\"schema-faq-question\">Q : 2. Quand les coussins de protection thermique sont-ils n\u00e9cessaires ?<\/strong> <p class=\"schema-faq-answer\">A : <strong>Utilisation obligatoire :<\/strong><br\/>Connexion \u00e0 de grands plans de cuivre d'alimentation\/de masse<br\/>Broches \u00e0 courant \u00e9lev\u00e9 (&gt;1A)<br\/>Positions d'angle des BGA<br\/><strong>Utilisation facultative :<\/strong><br\/>Les broches de signal utilisent g\u00e9n\u00e9ralement une connexion directe<br\/>Broches d'alimentation \u00e0 faible courant<br\/><strong>TOPFAST Param\u00e8tres recommand\u00e9s :<\/strong><br\/>Nombre de rayons : 4<br\/>Largeur des rayons : 0,15-0,25mm<br\/>Diam\u00e8tre d'ouverture : 0,3-0,5 mm<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1766137794111\"><strong class=\"schema-faq-question\">Q : 3. Comment planifier le routage de l'\u00e9chappement BGA ?<\/strong> <p class=\"schema-faq-answer\">A : <strong>Formule d'estimation du nombre de couches :<\/strong><br\/>Couches \u2248 (Nombre de broches n\u00e9cessitant un routage) \u00f7 (4 \u00d7 rang\u00e9es routables par couche) + 1 marge de couche<br\/><strong>Strat\u00e9gie de routage TOPFAST :<\/strong><br\/>Couches ext\u00e9rieures : Acheminer les 1 \u00e0 2 rangs les plus \u00e9loign\u00e9s<br\/>Couches internes : Utiliser l'os de chien ou le via-in-pad<br\/>La cl\u00e9 : Planifier les emplacements \u00e0 l'avance<br\/><strong>Recommandations by Pitch :<\/strong><br\/>\u22650,8mm : Fanout en forme d'ar\u00eate de chien<br\/>0,65-0,8 mm : Tampon de via-in partiel<br\/>\u22640.5mm : Bloc d'alimentation complet<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1766137812769\"><strong class=\"schema-faq-question\">Q : 4 Comment garantir l'int\u00e9grit\u00e9 du signal ?<\/strong> <p class=\"schema-faq-answer\">A : <strong>Quatre points cl\u00e9s :<\/strong><br\/>Contr\u00f4le de l'imp\u00e9dance : Diminution progressive de l'imp\u00e9dance de la pastille \u00e0 la trace<br\/>Suppression de la diaphonie : Espacement des signaux \u00e0 grande vitesse \u2265 3\u00d7 la largeur de la trace<br\/>Chemin de retour : Pr\u00e9voir une voie de masse pour chaque voie de signal<br\/>Int\u00e9grit\u00e9 de l'alimentation : Placer les condensateurs de d\u00e9couplage \u00e0 moins de 50 milli\u00e8mes de millim\u00e8tre du BGA.<br\/><strong>Liste de contr\u00f4le TOPFAST :<\/strong><br\/>Adaptation de la longueur des paires diff\u00e9rentielles \u2264 5 mils<br\/>Contr\u00f4le de l'imp\u00e9dance \u00e0 \u00b17%<br\/>Diaphonie critique du r\u00e9seau &lt; -40dB<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1766137828453\"><strong class=\"schema-faq-question\">Q : 5. comment assurer la qualit\u00e9 des joints de soudure ?<\/strong> <p class=\"schema-faq-answer\">A : <strong>Phase de conception :<\/strong><br\/>Finition de la surface du tampon : ENIG (signaux \u00e0 grande vitesse) ou ImAg (sensibles aux co\u00fbts)<br\/>Conception du pochoir : Taille de l'ouverture 85-90% de la surface du tampon<br\/>V\u00e9rification de l'espacement : S'assurer que les exigences minimales en mati\u00e8re d'espacement des tampons sont respect\u00e9es<br\/><strong>\u00c9tape de fabrication :<\/strong><br\/>Inspection de l'impression de la p\u00e2te \u00e0 braser<br\/>Inspection par rayons X (taux de vide &lt; 25%)<br\/>V\u00e9rification du profil de temp\u00e9rature de refusion<br\/>Essais de performance \u00e9lectrique<br\/><strong>TOPFAST Exp\u00e9rience :<\/strong><br\/>L'implication du fabricant dans les r\u00e9visions DFM pr\u00e9coces peut r\u00e9duire les probl\u00e8mes de production de masse de plus de 70%. Fournir les sp\u00e9cifications des BGA \u00e0 TOPFAST permet d'obtenir des recommandations de processus personnalis\u00e9es.<\/p> <\/div> <\/div><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Analyse approfondie de la conception des circuits imprim\u00e9s des bo\u00eetiers BGA : Calcul de l'agencement des plots, configuration des plots de refusion \u00e0 l'air chaud, strat\u00e9gies de routage des \u00e9vasions multicouches et \u00e9l\u00e9ments essentiels du processus de fabrication. TOPFAST int\u00e8gre les normes IPC aux pratiques de conception \u00e0 haute densit\u00e9 afin de fournir des solutions compl\u00e8tes pour les BGA au pas de 0,8 mm \u00e0 0,4 mm, am\u00e9liorant ainsi la fiabilit\u00e9 de la soudure et l'int\u00e9grit\u00e9 du signal.<\/p>","protected":false},"author":1,"featured_media":4822,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[419,110],"class_list":["post-4814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-bga-package","tag-pcb-design"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A Comprehensive Guide to BGA Package Layout, Thermal Management, and Manufacturing - Topfastpcb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/a-comprehensive-guide-to-bga-package-layout\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Comprehensive Guide to BGA Package Layout, Thermal Management, and Manufacturing - Topfastpcb\" \/>\n<meta property=\"og:description\" content=\"In-Depth Analysis of BGA Package PCB Design: Pad Layout Calculation, Hot Air Solder Reflow Pad Configuration, Multi-Layer Escape Routing Strategies, and Manufacturing Process Essentials. 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When Are Thermal Relief Pads Needed?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: <strong>Mandatory Usage:<\/strong><br\/>Connection to large power\/ground copper planes<br\/>High-current pins (>1A)<br\/>BGA corner positions<br\/><strong>Optional Usage:<\/strong><br\/>Signal pins typically use a direct connection<br\/>Low-current power pins<br\/><strong>TOPFAST Recommended Parameters:<\/strong><br\/>Number of spokes: 4<br\/>Spoke width: 0.15-0.25mm<br\/>Opening diameter: 0.3-0.5mm","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/a-comprehensive-guide-to-bga-package-layout\/#faq-question-1766137794111","position":3,"url":"https:\/\/www.topfastpcb.com\/blog\/a-comprehensive-guide-to-bga-package-layout\/#faq-question-1766137794111","name":"Q: 3. How to Plan BGA Escape Routing?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: <strong>Layer Count Estimation Formula:<\/strong><br\/>Layers \u2248 (Number of pins requiring routing) \u00f7 (4 \u00d7 Routable rows per layer) + 1 layer margin<br\/><strong>TOPFAST Routing Strategy:<\/strong><br\/>Outer layers: Route outermost 1-2 rows<br\/>Inner layers: Use dog-bone or via-in-pad<br\/>Key: Plan via locations early<br\/><strong>Recommendations by Pitch:<\/strong><br\/>\u22650.8mm: Dog-bone fanout<br\/>0.65-0.8mm: Partial via-in-pad<br\/>\u22640.5mm: Full via-in-pad","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/a-comprehensive-guide-to-bga-package-layout\/#faq-question-1766137812769","position":4,"url":"https:\/\/www.topfastpcb.com\/blog\/a-comprehensive-guide-to-bga-package-layout\/#faq-question-1766137812769","name":"Q: 4. How to Ensure Signal Integrity?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: <strong>Four Key Points:<\/strong><br\/>Impedance Control: Gradual taper from pad to trace<br\/>Crosstalk Suppression: High-speed signal spacing \u2265 3\u00d7 trace width<br\/>Return Path: Provide ground via for each signal via<br\/>Power Integrity: Place decoupling capacitors within 50 mils of BGA<br\/><strong>TOPFAST Checklist:<\/strong><br\/>Differential pair length matching \u2264 5 mils<br\/>Impedance control within \u00b17%<br\/>Critical network crosstalk &lt; -40dB","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/a-comprehensive-guide-to-bga-package-layout\/#faq-question-1766137828453","position":5,"url":"https:\/\/www.topfastpcb.com\/blog\/a-comprehensive-guide-to-bga-package-layout\/#faq-question-1766137828453","name":"Q: 5. How to Ensure Solder Joint Quality?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: <strong>Design Stage:<\/strong><br\/>Pad Surface Finish: ENIG (high-speed signals) or ImAg (cost-sensitive)<br\/>Stencil Design: Aperture size 85-90% of pad area<br\/>Spacing Check: Ensure minimum pad clearance requirements are met<br\/><strong>Manufacturing Stage:<\/strong><br\/>Solder paste printing inspection<br\/>X-ray inspection (void rate &lt; 25%)<br\/>Reflow temperature profile verification<br\/>Electrical performance testing<br\/><strong>TOPFAST Experience:<\/strong><br\/>Involving the manufacturer in early DFM reviews can reduce mass production issues by over 70%. Providing BGA specifications to TOPFAST allows for customized process recommendations.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"}]}},"_links":{"self":[{"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/posts\/4814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/comments?post=4814"}],"version-history":[{"count":1,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/posts\/4814\/revisions"}],"predecessor-version":[{"id":4826,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/posts\/4814\/revisions\/4826"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/media\/4822"}],"wp:attachment":[{"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/media?parent=4814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/categories?post=4814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/tags?post=4814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}