{"id":3079,"date":"2025-06-05T08:34:00","date_gmt":"2025-06-05T00:34:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3079"},"modified":"2025-06-04T15:13:09","modified_gmt":"2025-06-04T07:13:09","slug":"through-hole-technology-pcb","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/","title":{"rendered":"Technologie des trous traversants PCB"},"content":{"rendered":"<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\/through-hole-technology-pcb\/#What_is_Through-Hole_PCB_Assembly_Technology\" >Qu'est-ce que la technologie d'assemblage de circuits imprim\u00e9s \u00e0 trous traversants ?<\/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\/through-hole-technology-pcb\/#Core_Advantages_of_Through-Hole_PCB_Assembly\" >Principaux avantages de l'assemblage de circuits imprim\u00e9s \u00e0 trous traversants<\/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\/through-hole-technology-pcb\/#1_Exceptional_Mechanical_Strength_and_Reliability\" >1. R\u00e9sistance m\u00e9canique et fiabilit\u00e9 exceptionnelles<\/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\/through-hole-technology-pcb\/#2_Outstanding_Power_Handling_Capability\" >2.Capacit\u00e9 exceptionnelle de gestion de la puissance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#3_Convenience_for_Prototyping_and_Repair\" >3.Commodit\u00e9 pour le prototypage et la r\u00e9paration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#4_Stability_in_Extreme_Environments\" >4.Stabilit\u00e9 dans les environnements extr\u00eames<\/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\/through-hole-technology-pcb\/#5_Ideal_Choice_for_Large_Components\" >5.Choix id\u00e9al pour les composants de grande taille<\/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\/through-hole-technology-pcb\/#Technical_Process_of_Through-Hole_Assembly\" >Processus technique de l'assemblage par trou traversant<\/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\/through-hole-technology-pcb\/#1_PCB_Design_and_Drilling\" >1. Conception du circuit imprim\u00e9 et per\u00e7age<\/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\/through-hole-technology-pcb\/#2_Component_Insertion\" >2.Insertion de composants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#3_Soldering_Processes\" >3.Proc\u00e9d\u00e9s de brasage<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#4_Cleaning_and_Inspection\" >4.Nettoyage et inspection<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#Comparison_Through-Hole_vs_Surface_Mount_Technology\" >Comparaison :Technologie de trou traversant ou de montage en surface<\/a><\/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\/through-hole-technology-pcb\/#Top_5_Common_Through-Hole_PCB_Assembly_Issues_and_Solutions\" >Les 5 probl\u00e8mes les plus courants li\u00e9s \u00e0 l'assemblage de circuits imprim\u00e9s \u00e0 trous traversants et leurs solutions<\/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\/through-hole-technology-pcb\/#Issue_1_Incomplete_Solder_Fill_in_Through-Holes\" >Probl\u00e8me 1 : Remplissage de soudure incomplet dans les trous de passage<\/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\/through-hole-technology-pcb\/#Issue_2_Difficult_or_Damaged_Component_Insertion\" >Probl\u00e8me 2 : Insertion de composants difficile ou endommag\u00e9e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#Issue_3_Solder_Bridging_or_Excessive_Solder_After_Assembly\" >Probl\u00e8me 3 : Ponts de soudure ou exc\u00e8s de soudure apr\u00e8s l'assemblage<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#Issue_4_Loose_Components_or_Misalignment_After_Soldering\" >Probl\u00e8me 4 : Composants desserr\u00e9s ou d\u00e9salignement apr\u00e8s soudure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#Issue_5_Heat-Sensitive_Component_Damage_During_Soldering\" >Probl\u00e8me 5 : Dommages caus\u00e9s aux composants sensibles \u00e0 la chaleur lors du soudage<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#Future_Trends_in_Through-Hole_PCB_Assembly\" >Tendances futures en mati\u00e8re d'assemblage de circuits imprim\u00e9s \u00e0 trous traversants<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#Why_Choose_Our_Through-Hole_PCB_Assembly_Services\" >Pourquoi choisir nos services d'assemblage de circuits imprim\u00e9s \u00e0 trous traversants ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/through-hole-technology-pcb\/#Recommended_Reading\" >Lectures recommand\u00e9es<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_Through-Hole_PCB_Assembly_Technology\"><\/span>Qu'est-ce que la technologie d'assemblage de circuits imprim\u00e9s \u00e0 trous traversants ?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>La technologie des trous traversants (THT) est une m\u00e9thode traditionnelle de montage de composants \u00e9lectroniques sur des supports en plastique. <a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/printed-circuit-board-pcb\/\">les cartes de circuits imprim\u00e9s (PCB)<\/a>. Cette technique consiste \u00e0 faire passer les fils des composants par des trous pr\u00e9perc\u00e9s dans le circuit imprim\u00e9, puis \u00e0 les souder et \u00e0 les fixer de l'autre c\u00f4t\u00e9. En tant que professionnel <a href=\"https:\/\/www.topfastpcb.com\/fr\/products\/category\/pcba\/\">Assemblage du PCB<\/a> nous comprenons que la technologie du trou traversant joue toujours un r\u00f4le irrempla\u00e7able dans la fabrication de produits \u00e9lectroniques modernes.<\/p><p>La technologie du trou traversant peut \u00eatre divis\u00e9e en deux cat\u00e9gories : l'assemblage manuel et l'assemblage automatis\u00e9. L'assemblage manuel convient \u00e0 la production de petites s\u00e9ries ou au prototypage, tandis que l'assemblage automatis\u00e9 permet une production de masse \u00e0 haut rendement gr\u00e2ce \u00e0 des machines d'insertion sp\u00e9cialis\u00e9es. Bien que la technologie du montage en surface (SMT) soit devenue courante, la technologie du trou traversant conserve son importance dans de nombreuses applications en raison de ses avantages uniques.<\/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\/06\/pcb-5.jpg\" alt=\"Technologie des trous traversants PCB\" class=\"wp-image-3080\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/pcb-5.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/pcb-5-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/pcb-5-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Core_Advantages_of_Through-Hole_PCB_Assembly\"><\/span>Principaux avantages de l'assemblage de circuits imprim\u00e9s \u00e0 trous traversants<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Exceptional_Mechanical_Strength_and_Reliability\"><\/span>1. R\u00e9sistance m\u00e9canique et fiabilit\u00e9 exceptionnelles<span class=\"ez-toc-section-end\"><\/span><\/h3><p>L'avantage le plus notable de l'assemblage par trou traversant est son <strong>connexion m\u00e9canique sup\u00e9rieure<\/strong>. Les fils des composants qui traversent le circuit imprim\u00e9 forment des joints de soudure qui cr\u00e9ent une connexion tridimensionnelle bien plus robuste que la connexion bidimensionnelle du montage en surface. Pour les applications n\u00e9cessitant une r\u00e9sistance aux contraintes m\u00e9caniques, aux vibrations ou aux chocs (telles que l'\u00e9lectronique automobile, les \u00e9quipements industriels et les produits a\u00e9rospatiaux), les composants \u00e0 trous traversants font preuve d'une fiabilit\u00e9 in\u00e9gal\u00e9e.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Outstanding_Power_Handling_Capability\"><\/span>2.Capacit\u00e9 exceptionnelle de gestion de la puissance<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Les composants \u00e0 trous traversants offrent g\u00e9n\u00e9ralement <strong>capacit\u00e9 de puissance plus \u00e9lev\u00e9e<\/strong>. Comme les fils traversent la carte et sont reli\u00e9s \u00e0 plusieurs couches de cuivre, ils assurent une meilleure dissipation de la chaleur et peuvent supporter des courants plus importants. Le THT est donc id\u00e9al pour les applications \u00e0 forte puissance telles que les alimentations, les entra\u00eenements de moteurs et les amplificateurs.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Convenience_for_Prototyping_and_Repair\"><\/span>3.Commodit\u00e9 pour le prototypage et la r\u00e9paration<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Lors des travaux de recherche et de d\u00e9veloppement et de r\u00e9paration, les composants \u00e0 trous traversants&amp;#8217 ; <strong>facilit\u00e9 de remplacement<\/strong> est inestimable. Les ing\u00e9nieurs peuvent facilement dessouder et remplacer les composants sans endommager le circuit imprim\u00e9. En revanche, le remplacement des composants mont\u00e9s en surface (en particulier les bo\u00eetiers BGA \u00e0 pas fin) est beaucoup plus difficile et n\u00e9cessite un \u00e9quipement et des comp\u00e9tences sp\u00e9cialis\u00e9s.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Stability_in_Extreme_Environments\"><\/span>4.Stabilit\u00e9 dans les environnements extr\u00eames<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Joints de soudure \u00e0 trous traversants <strong>meilleure r\u00e9sistance aux cycles thermiques<\/strong> et des conditions environnementales difficiles. La connexion en forme de colonne form\u00e9e par la soudure remplissant le trou de passage est plus r\u00e9sistante aux contraintes de dilatation thermique que les joints de soudure en m\u00e9nisque de SMT, ce qui la rend plus stable dans les applications soumises \u00e0 d'importantes fluctuations de temp\u00e9rature.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Ideal_Choice_for_Large_Components\"><\/span>5.Choix id\u00e9al pour les composants de grande taille<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Pour les connecteurs, les transformateurs, les grands condensateurs \u00e9lectrolytiques et autres <strong>composants encombrants<\/strong>Le montage en surface, le montage \u00e0 travers le trou est souvent la seule option viable. Le poids et la taille de ces composants font que le montage en surface ne permet pas d'assurer une r\u00e9sistance m\u00e9canique suffisante.<\/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\/06\/Through-Hole-Technology-3.jpg\" alt=\"Technologie des trous traversants\" class=\"wp-image-3081\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-3.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-3-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-3-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Technical_Process_of_Through-Hole_Assembly\"><\/span>Processus technique de l'assemblage par trou traversant<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_PCB_Design_and_Drilling\"><\/span>1. Conception du circuit imprim\u00e9 et per\u00e7age<span class=\"ez-toc-section-end\"><\/span><\/h3><p>La premi\u00e8re \u00e9tape de l'assemblage par trous traversants consiste \u00e0 d\u00e9terminer l'emplacement des composants et \u00e0 les placer dans un endroit appropri\u00e9. <strong>conception du sch\u00e9ma de per\u00e7age<\/strong> lors de la conception du circuit imprim\u00e9. Chaque composant traversant n\u00e9cessite un trou d'un diam\u00e8tre appropri\u00e9, g\u00e9n\u00e9ralement de 0,1 \u00e0 0,3 mm plus grand que le fil du composant pour faciliter l'insertion. Les logiciels modernes de conception de circuits imprim\u00e9s peuvent g\u00e9n\u00e9rer automatiquement des fichiers de per\u00e7age pour guider les machines de per\u00e7age \u00e0 commande num\u00e9rique pour une fabrication pr\u00e9cise.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Component_Insertion\"><\/span>2.Insertion de composants<span class=\"ez-toc-section-end\"><\/span><\/h3><p>L'insertion des composants peut \u00eatre effectu\u00e9e <strong>manuellement<\/strong> or <strong>automatiquement<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Insertion manuelle : Les op\u00e9rateurs placent les composants un par un en fonction de la nomenclature et des marques de s\u00e9rigraphie du circuit imprim\u00e9.<\/li>\n\n<li>Insertion automatique :Utilise des machines d'insertion axiale ou radiale pour placer les composants automatiquement.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Soldering_Processes\"><\/span>3.Proc\u00e9d\u00e9s de brasage<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Il existe deux m\u00e9thodes principales de brasage \u00e0 travers les trous :<\/p><ul class=\"wp-block-list\"><li><strong>Soudure \u00e0 la vague<\/strong>: Le fond du circuit imprim\u00e9 passe sur une vague de soudure en fusion, la soudure remontant par capillarit\u00e9 pour remplir les trous de passage.<\/li>\n\n<li><strong>Brasage manuel<\/strong>: Soudage de chaque joint individuellement \u00e0 l'aide d'un fer \u00e0 souder, adapt\u00e9 aux petites s\u00e9ries ou aux travaux de r\u00e9paration.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Cleaning_and_Inspection\"><\/span>4.Nettoyage et inspection<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Apr\u00e8s la soudure, <strong>les r\u00e9sidus de flux doivent \u00eatre \u00e9limin\u00e9s<\/strong>Les produits sont ensuite soumis \u00e0 des contr\u00f4les de qualit\u00e9 rigoureux, notamment<\/p><ul class=\"wp-block-list\"><li>Inspection visuelle des joints de soudure<\/li>\n\n<li>Inspection optique automatis\u00e9e (AOI)<\/li>\n\n<li>Essais fonctionnels<\/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\/06\/Through-Hole-Technology.jpg\" alt=\"Technologie des trous traversants\" class=\"wp-image-3082\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comparison_Through-Hole_vs_Surface_Mount_Technology\"><\/span>Comparaison :Technologie de trou traversant ou de montage en surface<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Si la technologie de montage en surface (SMT) s'est g\u00e9n\u00e9ralis\u00e9e, la technologie du trou traversant conserve une valeur unique :<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Caract\u00e9ristique<\/th><th>Trou de passage (THT)<\/th><th>Montage en surface (SMT)<\/th><\/tr><\/thead><tbody><tr><td>R\u00e9sistance m\u00e9canique<\/td><td>Tr\u00e8s \u00e9lev\u00e9<\/td><td>Mod\u00e9r\u00e9<\/td><\/tr><tr><td>Tenue en puissance<\/td><td>Haut<\/td><td>Faible \u00e0 mod\u00e9r\u00e9<\/td><\/tr><tr><td>Densit\u00e9 d'assemblage<\/td><td>Faible<\/td><td>Haut<\/td><\/tr><tr><td>Performance \u00e0 haute fr\u00e9quence<\/td><td>Moyenne<\/td><td>Excellent<\/td><\/tr><tr><td>Co\u00fbt de production<\/td><td>Plus \u00e9lev\u00e9<\/td><td>Plus bas<\/td><\/tr><tr><td>Difficult\u00e9 de r\u00e9paration<\/td><td>Facile<\/td><td>Difficile<\/td><\/tr><tr><td>Composants adapt\u00e9s<\/td><td>Grande, haute puissance<\/td><td>Miniature, hautement int\u00e9gr\u00e9<\/td><\/tr><\/tbody><\/table><\/figure><p>En pratique, <strong>technologie d'assemblage mixte<\/strong> (combinant THT et SMT) est de plus en plus courante, tirant parti des points forts des deux approches.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Top_5_Common_Through-Hole_PCB_Assembly_Issues_and_Solutions\"><\/span>Les 5 probl\u00e8mes les plus courants li\u00e9s \u00e0 l'assemblage de circuits imprim\u00e9s \u00e0 trous traversants et leurs solutions<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Issue_1_Incomplete_Solder_Fill_in_Through-Holes\"><\/span>Probl\u00e8me 1 : Remplissage de soudure incomplet dans les trous de passage<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Causes profondes<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Temp\u00e9rature de soudure insuffisante<\/li>\n\n<li>Dur\u00e9e de brasage trop courte<\/li>\n\n<li>Inad\u00e9quation entre le diam\u00e8tre du trou et la taille du plomb<\/li>\n\n<li>Mauvaise fluidit\u00e9 de la soudure<\/li><\/ul><p><strong>Solutions<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Optimiser les param\u00e8tres de brasage \u00e0 la vague : Augmenter la temp\u00e9rature de soudure \u00e0 250-260\u00b0C, allonger le temps de contact \u00e0 3-5 secondes<\/li>\n\n<li>Veiller \u00e0 ce que le diam\u00e8tre du trou soit sup\u00e9rieur de 0,1 \u00e0 0,3 mm au diam\u00e8tre du fil.<\/li>\n\n<li>Utiliser un flux ayant une activit\u00e9 appropri\u00e9e pour am\u00e9liorer la mouillabilit\u00e9.<\/li>\n\n<li>Pour le brasage manuel, utilisez la technique du \"feed solder\" pour assurer un remplissage complet des trous.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Issue_2_Difficult_or_Damaged_Component_Insertion\"><\/span>Probl\u00e8me 2 : Insertion de composants difficile ou endommag\u00e9e<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Causes profondes<\/strong>:<\/p><ul class=\"wp-block-list\"><li>D\u00e9viation de la position de per\u00e7age du circuit imprim\u00e9<\/li>\n\n<li>Le diam\u00e8tre du trou est trop petit<\/li>\n\n<li>La composante d\u00e9form\u00e9e conduit<\/li>\n\n<li>Mauvais \u00e9talonnage de la machine d'insertion<\/li><\/ul><p><strong>Solutions<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Renforcer le contr\u00f4le de la qualit\u00e9 de la fabrication des circuits imprim\u00e9s pour garantir la pr\u00e9cision du per\u00e7age<\/li>\n\n<li>V\u00e9rifier et ajuster r\u00e9guli\u00e8rement les syst\u00e8mes de positionnement des machines d'insertion<\/li>\n\n<li>Effectuer le formage de plomb sur les composants<\/li>\n\n<li>Mettre en \u0153uvre l'inspection des premiers articles afin d'identifier et de corriger rapidement les probl\u00e8mes.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Issue_3_Solder_Bridging_or_Excessive_Solder_After_Assembly\"><\/span>Probl\u00e8me 3 : Ponts de soudure ou exc\u00e8s de soudure apr\u00e8s l'assemblage<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Causes profondes<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Temp\u00e9rature de soudure excessive<\/li>\n\n<li>Activit\u00e9 de flux insuffisante<\/li>\n\n<li>Espacement inad\u00e9quat des composants<\/li>\n\n<li>Hauteur de vague inappropri\u00e9e<\/li><\/ul><p><strong>Solutions<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Ajuster les param\u00e8tres de brasage \u00e0 la vague : Diminuer la temp\u00e9rature ou r\u00e9duire le temps de contact<\/li>\n\n<li>Passer \u00e0 un flux d'activit\u00e9 plus \u00e9lev\u00e9<\/li>\n\n<li>Optimiser la disposition des composants pour augmenter l'espacement critique<\/li>\n\n<li>Contr\u00f4le de la hauteur des ondes \u00e0 1\/2-2\/3 de l'\u00e9paisseur du circuit imprim\u00e9<\/li>\n\n<li>Pour les ponts existants, utiliser une m\u00e8che de soudure ou des outils de reprise.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Issue_4_Loose_Components_or_Misalignment_After_Soldering\"><\/span>Probl\u00e8me 4 : Composants desserr\u00e9s ou d\u00e9salignement apr\u00e8s soudure<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Causes profondes<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Insertion incompl\u00e8te du composant<\/li>\n\n<li>Jeu excessif entre les fils et les trous<\/li>\n\n<li>Composants non s\u00e9curis\u00e9s avant soudure<\/li>\n\n<li>D\u00e9placement d\u00fb \u00e0 l'impact des vagues<\/li><\/ul><p><strong>Solutions<\/strong>:<\/p><ol class=\"wp-block-list\"><li>S'assurer que les composants sont enti\u00e8rement ins\u00e9r\u00e9s et qu'ils affleurent la carte de circuit imprim\u00e9.<\/li>\n\n<li>Pour les composants lourds, utilisez un adh\u00e9sif temporaire avant de souder.<\/li>\n\n<li>Optimiser la conception du dispositif de brasage \u00e0 la vague pour minimiser l'impact m\u00e9canique<\/li>\n\n<li>Mettre en place une inspection en cours de fabrication pour d\u00e9tecter rapidement les probl\u00e8mes d'alignement<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Issue_5_Heat-Sensitive_Component_Damage_During_Soldering\"><\/span>Probl\u00e8me 5 : Dommages caus\u00e9s aux composants sensibles \u00e0 la chaleur lors du soudage<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Causes profondes<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Temp\u00e9rature de soudure excessive<\/li>\n\n<li>Pas de protection pour les composants sensibles \u00e0 la chaleur<\/li>\n\n<li>Dur\u00e9e de brasage prolong\u00e9e<\/li><\/ul><p><strong>Solutions<\/strong>:<\/p><ol class=\"wp-block-list\"><li>Utiliser le brasage manuel pour les composants sensibles avec un chauffage local contr\u00f4l\u00e9<\/li>\n\n<li>Appliquer des dissipateurs de chaleur ou des pinces thermiques pour prot\u00e9ger les composants<\/li>\n\n<li>Ajuster la s\u00e9quence de brasage &amp;#8211 ; souder les composants sensibles en dernier<\/li>\n\n<li>S\u00e9lectionner des alliages de soudure \u00e0 basse temp\u00e9rature (par exemple, Sn-Bi)<\/li>\n\n<li>Si n\u00e9cessaire, utiliser des stations de reprise pour un chauffage localis\u00e9.<\/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\/06\/Through-Hole-Technology-2.jpg\" alt=\"Technologie des trous traversants\" class=\"wp-image-3083\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/Through-Hole-Technology-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Future_Trends_in_Through-Hole_PCB_Assembly\"><\/span>Tendances futures en mati\u00e8re d'assemblage de circuits imprim\u00e9s \u00e0 trous traversants<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Bien que la technologie du montage en surface domine, l'assemblage \u00e0 travers le trou continue d'\u00e9voluer :<\/p><ol class=\"wp-block-list\"><li><strong>Trou traversant haute densit\u00e9<\/strong>: Des trous plus petits (0,2-0,3 mm) et un per\u00e7age plus pr\u00e9cis augmentent la densit\u00e9 d'assemblage.<\/li>\n\n<li><strong>Syst\u00e8mes de brasage s\u00e9lectif<\/strong>: Souder avec pr\u00e9cision uniquement les parties \u00e0 trous traversants des cartes \u00e0 technologie mixte, en r\u00e9duisant les contraintes thermiques<\/li>\n\n<li><strong>Automatisation accrue<\/strong>: Des machines d'insertion automatique et des syst\u00e8mes d'inspection plus intelligents am\u00e9liorent le rendement<\/li>\n\n<li><strong>Mat\u00e9riaux avanc\u00e9s<\/strong>: Des mat\u00e9riaux de circuits imprim\u00e9s \u00e0 haute conductivit\u00e9 thermique et de nouvelles soudures am\u00e9liorent les performances thermiques<\/li><\/ol><p>En tant qu'assembleurs professionnels de circuits imprim\u00e9s, nous recommandons \u00e0 nos clients de choisir la technologie la plus appropri\u00e9e en fonction des caract\u00e9ristiques du produit et de l'environnement de l'application.Pour les applications exigeant une grande fiabilit\u00e9, des connexions m\u00e9caniques solides et une meilleure gestion de l'\u00e9nergie, la technologie du trou traversant reste indispensable.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Choose_Our_Through-Hole_PCB_Assembly_Services\"><\/span>Pourquoi choisir nos services d'assemblage de circuits imprim\u00e9s \u00e0 trous traversants ?<span class=\"ez-toc-section-end\"><\/span><\/h2><ul class=\"wp-block-list\"><li>17 ans d'exp\u00e9rience dans l'assemblage de trous traversants avec des milliers de conceptions diff\u00e9rentes<\/li>\n\n<li>\u00c9quip\u00e9s de machines d'insertion automatique de haute pr\u00e9cision et de syst\u00e8mes de soudure s\u00e9lective<\/li>\n\n<li>Syst\u00e8me strict de contr\u00f4le de la qualit\u00e9 avec des taux de d\u00e9faut inf\u00e9rieurs \u00e0 0,1%.<\/li>\n\n<li>Services complets, de l'aide \u00e0 la conception aux essais finaux<\/li>\n\n<li>Capacit\u00e9 flexible du prototypage \u00e0 la production de masse<\/li><\/ul><p>Que votre projet n\u00e9cessite un assemblage par trou traversant pur ou une technologie mixte, notre \u00e9quipe d'ing\u00e9nieurs vous offre des conseils d'experts et une fabrication de haute qualit\u00e9. Contactez-nous gratuitement <a href=\"https:\/\/www.topfastpcb.com\/fr\/contact\/\">consultation technique et devis.<\/a><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Recommended_Reading\"><\/span>Lectures recommand\u00e9es<span class=\"ez-toc-section-end\"><\/span><\/h2><p><a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/surface-mount-technology\/\">Technologie de montage en surface (SMT)<\/a><\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Ce guide complet explore l'assemblage de circuits imprim\u00e9s \u00e0 travers le trou (THT), couvrant les avantages cl\u00e9s, les processus techniques, les comparaisons avec le SMT, et les solutions d'experts \u00e0 5 probl\u00e8mes courants.En tant que sp\u00e9cialistes de l'assemblage de circuits imprim\u00e9s, nous examinons la valeur unique de la technologie du trou traversant en termes de r\u00e9sistance m\u00e9canique, de gestion de la puissance et de fiabilit\u00e9, tout en fournissant des recommandations pratiques pour s\u00e9lectionner la m\u00e9thode d'assemblage optimale pour votre projet.<\/p>","protected":false},"author":1,"featured_media":3084,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112],"tags":[272,271],"class_list":["post-3079","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-pcb-assembly","tag-through-hole-technology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Through Hole Technology PCB - Topfastpcb<\/title>\n<meta name=\"description\" content=\"Complete guide to professional through-hole PCB assembly technology, detailing THT processes, advantages, and solutions to common issues. 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