{"id":5223,"date":"2026-03-15T08:32:00","date_gmt":"2026-03-15T00:32:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=5223"},"modified":"2026-03-10T17:27:50","modified_gmt":"2026-03-10T09:27:50","slug":"pcb-solder-mask-design-guidelines","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-solder-mask-design-guidelines\/","title":{"rendered":"Lignes directrices pour la conception de masques de soudure pour circuits imprim\u00e9s en vue d'une fabrication fiable"},"content":{"rendered":"<p>Le masque de soudure est l'une des couches les plus visibles sur un circuit imprim\u00e9. Il recouvre les traces de cuivre tout en laissant les patins des composants expos\u00e9s pour la soudure.<\/p><p>Bien que le masque de soudure semble simple, une mauvaise conception peut entra\u00eener plusieurs probl\u00e8mes de fabrication et d'assemblage, notamment :<\/p><ul class=\"wp-block-list\"><li>ponts de soudure entre les plots<\/li>\n\n<li>mauvais joints de soudure<\/li>\n\n<li>zones de cuivre expos\u00e9es<\/li>\n\n<li>R\u00e9duction du rendement des PCB<\/li><\/ul><p>Respecter les r\u00e8gles <strong>Lignes directrices pour la conception des masques de soudure pour circuits imprim\u00e9s<\/strong> garantit que la couche de masque supporte \u00e0 la fois les processus de fabrication et d'assemblage.<\/p><p>Ce guide explique les principaux param\u00e8tres de conception que les ing\u00e9nieurs doivent prendre en compte lors de la cr\u00e9ation d'ouvertures et de d\u00e9gagements pour les masques de soudure.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"437\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask.jpg\" alt=\"Masque de soudure pour circuit imprim\u00e9\" class=\"wp-image-5224\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-300x219.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-16x12.jpg 16w\" 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\/pcb-solder-mask-design-guidelines\/#What_Is_PCB_Solder_Mask\" >Qu'est-ce que le masque de soudure pour circuits imprim\u00e9s ?<\/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\/pcb-solder-mask-design-guidelines\/#Types_of_Solder_Mask\" >Types de masques de soudure<\/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\/pcb-solder-mask-design-guidelines\/#Liquid_Photoimageable_Solder_Mask_LPI\" >Masque de soudure liquide photo-imageable (LPI)<\/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\/pcb-solder-mask-design-guidelines\/#Dry_Film_Solder_Mask\" >Masque de soudure \u00e0 film sec<\/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\/pcb-solder-mask-design-guidelines\/#Epoxy_Screen-Printed_Mask\" >Masque s\u00e9rigraphi\u00e9 \u00e0 l'\u00e9poxy<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-solder-mask-design-guidelines\/#Key_PCB_Solder_Mask_Design_Rules\" >Principales r\u00e8gles de conception des masques de soudure pour circuits imprim\u00e9s<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-solder-mask-design-guidelines\/#1_Solder_Mask_Clearance\" >1. D\u00e9gagement du masque de soudure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-solder-mask-design-guidelines\/#2_Solder_Mask_Expansion\" >2. Expansion du masque de soudure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-solder-mask-design-guidelines\/#3_Solder_Mask_Dam_Width\" >3. Largeur du masque de soudure<\/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\/pcb-solder-mask-design-guidelines\/#4_Fine-Pitch_Component_Considerations\" >4. Consid\u00e9rations relatives aux composants \u00e0 pas fin<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-solder-mask-design-guidelines\/#Solder_Mask_Defined_Pads_SMD\" >Pastilles d\u00e9finies par le masque de soudure (SMD)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-solder-mask-design-guidelines\/#Non-Solder_Mask_Defined_Pads_NSMD\" >Pastilles d\u00e9finies par un masque de soudure (NSMD)<\/a><\/li><\/ul><\/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\/pcb-solder-mask-design-guidelines\/#How_to_Design_PCB_Solder_Mask_Practical_Steps\" >Comment concevoir un masque de soudure pour PCB (\u00e9tapes pratiques)<\/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\/pcb-solder-mask-design-guidelines\/#Common_PCB_Solder_Mask_Design_Mistakes\" >Erreurs courantes dans la conception des masques de soudure pour circuits imprim\u00e9s<\/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\/pcb-solder-mask-design-guidelines\/#Mask_openings_are_too_small\" >Les ouvertures du masque sont trop petites<\/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\/pcb-solder-mask-design-guidelines\/#Insufficient_solder_mask_dam\" >Barrage de masque de soudure insuffisant<\/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\/pcb-solder-mask-design-guidelines\/#Incorrect_pad_definitions\" >D\u00e9finitions incorrectes des tampons<\/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\/pcb-solder-mask-design-guidelines\/#Ignoring_manufacturing_tolerances\" >Ignorer les tol\u00e9rances de fabrication<\/a><\/li><\/ul><\/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\/pcb-solder-mask-design-guidelines\/#Manufacturing_Considerations\" >Consid\u00e9rations relatives \u00e0 la fabrication<\/a><\/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\/pcb-solder-mask-design-guidelines\/#Conclusion\" >Conclusion<\/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\/pcb-solder-mask-design-guidelines\/#PCB_Solder_Mask_FAQ\" >FAQ sur les masques de soudure pour circuits imprim\u00e9s<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_PCB_Solder_Mask\"><\/span>Qu'est-ce que le masque de soudure pour circuits imprim\u00e9s ?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Le masque de soudure est un rev\u00eatement polym\u00e8re appliqu\u00e9 sur les surfaces des circuits imprim\u00e9s afin de prot\u00e9ger les traces de cuivre et d'\u00e9viter les connexions de soudure involontaires.<\/p><p>Ses principales fonctions sont les suivantes<\/p><ul class=\"wp-block-list\"><li>prot\u00e9ger le cuivre de l'oxydation<\/li>\n\n<li>pr\u00e9vention des ponts de soudure<\/li>\n\n<li>l'am\u00e9lioration de l'isolation entre les conducteurs<\/li>\n\n<li>am\u00e9liorer l'apparence des PCB<\/li><\/ul><p>Lors de la fabrication des circuits imprim\u00e9s, la couche de masque de soudure est appliqu\u00e9e apr\u00e8s la formation du motif en cuivre et avant la finition de la surface.<\/p><p>L'ensemble du processus de fabrication est expliqu\u00e9 dans le document : <strong><a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-manufacturing-process-explained-step-by-step\/\">Explication du processus de fabrication des PCB<\/a><\/strong><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Types_of_Solder_Mask\"><\/span>Types de masques de soudure<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Plusieurs types de masques de soudure sont utilis\u00e9s dans la fabrication des circuits imprim\u00e9s.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Liquid_Photoimageable_Solder_Mask_LPI\"><\/span>Masque de soudure liquide photo-imageable (LPI)<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Le type le plus courant utilis\u00e9 dans les PCB modernes.<\/p><p>Caract\u00e9ristiques :<\/p><ul class=\"wp-block-list\"><li>appliqu\u00e9 comme un rev\u00eatement liquide<\/li>\n\n<li>model\u00e9 par photolithographie<\/li>\n\n<li>prend en charge les composants \u00e0 pas fin<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dry_Film_Solder_Mask\"><\/span>Masque de soudure \u00e0 film sec<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Moins couramment utilis\u00e9 mais adapt\u00e9 \u00e0 des applications sp\u00e9cifiques.<\/p><p>Caract\u00e9ristiques :<\/p><ul class=\"wp-block-list\"><li>film lamin\u00e9<\/li>\n\n<li>\u00e9paisseur uniforme<\/li>\n\n<li>Id\u00e9al pour les conceptions de haute pr\u00e9cision<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Epoxy_Screen-Printed_Mask\"><\/span>Masque s\u00e9rigraphi\u00e9 \u00e0 l'\u00e9poxy<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Utilis\u00e9 principalement dans les proc\u00e9d\u00e9s de fabrication de circuits imprim\u00e9s plus anciens ou peu co\u00fbteux.<\/p><p>Limites :<\/p><ul class=\"wp-block-list\"><li>r\u00e9solution inf\u00e9rieure<\/li>\n\n<li>ne convient pas pour les composants \u00e0 pas fin<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_PCB_Solder_Mask_Design_Rules\"><\/span>Principales r\u00e8gles de conception des masques de soudure pour circuits imprim\u00e9s<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Plusieurs param\u00e8tres de conception influencent les performances des masques de soudure.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Solder_Mask_Clearance\"><\/span>1. D\u00e9gagement du masque de soudure<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Le jeu du masque de soudure d\u00e9finit la distance entre le bord de la pastille de cuivre et l'ouverture du masque.<\/p><p>Ligne directrice typique :<\/p><pre class=\"wp-block-preformatted\">D\u00e9gagement du masque : 3-4 mil<\/pre><p>Un d\u00e9gagement ad\u00e9quat garantit que les tampons sont enti\u00e8rement expos\u00e9s lors de l'assemblage.<\/p><p>Si l'espace libre est trop faible :<\/p><ul class=\"wp-block-list\"><li>Le masque peut couvrir les bords du tampon<\/li>\n\n<li>Les joints de soudure peuvent \u00eatre peu fiables<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Solder_Mask_Expansion\"><\/span>2. Expansion du masque de soudure<span class=\"ez-toc-section-end\"><\/span><\/h3><p>L'expansion du masque est l'\u00e9largissement de l'ouverture du masque de soudure au-del\u00e0 de la pastille de cuivre.<\/p><p>Exemple :<\/p><pre class=\"wp-block-preformatted\">Taille du tampon = 20 mil<br>Ouverture du masque = 24 mil<br>Expansion = 2 mil par c\u00f4t\u00e9<\/pre><p>Cette expansion compense les tol\u00e9rances d'alignement du masque pendant la fabrication.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Solder_Mask_Dam_Width\"><\/span>3. Largeur du masque de soudure<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Le barrage du masque de soudure est la bande \u00e9troite de masque entre deux pastilles.<\/p><p>Largeur minimale typique d'une digue :<\/p><pre class=\"wp-block-preformatted\">\u2265 4 mil<\/pre><p>Si la digue est trop \u00e9troite, elle peut se briser pendant la fabrication, ce qui augmente le risque de ponts de soudure.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Fine-Pitch_Component_Considerations\"><\/span>4. Consid\u00e9rations relatives aux composants \u00e0 pas fin<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Les circuits int\u00e9gr\u00e9s \u00e0 pas fin et les BGA n\u00e9cessitent une conception sp\u00e9ciale du masque de soudure.<\/p><p>Les approches les plus courantes sont les suivantes :<\/p><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solder_Mask_Defined_Pads_SMD\"><\/span>Pastilles d\u00e9finies par le masque de soudure (SMD)<span class=\"ez-toc-section-end\"><\/span><\/h4><p>L'ouverture du masque d\u00e9finit la taille du tampon.<\/p><p>Avantages :<\/p><ul class=\"wp-block-list\"><li>un contr\u00f4le plus strict des petits composants<\/li><\/ul><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Non-Solder_Mask_Defined_Pads_NSMD\"><\/span>Pastilles d\u00e9finies par un masque de soudure (NSMD)<span class=\"ez-toc-section-end\"><\/span><\/h4><p>La plaquette de cuivre d\u00e9finit la taille, l'ouverture du masque est plus grande.<\/p><p>Avantages :<\/p><ul class=\"wp-block-list\"><li>meilleure fiabilit\u00e9 des joints de soudure<\/li>\n\n<li>couramment utilis\u00e9 pour les plaquettes BGA<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"468\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-1.jpg\" alt=\"Masque de soudure pour circuit imprim\u00e9\" class=\"wp-image-5225\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-1-300x234.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-1-15x12.jpg 15w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Design_PCB_Solder_Mask_Practical_Steps\"><\/span>Comment concevoir un masque de soudure pour PCB (\u00e9tapes pratiques)<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"schema-how-to wp-block-yoast-how-to-block\"><p class=\"schema-how-to-description\">Les ing\u00e9nieurs suivent g\u00e9n\u00e9ralement plusieurs \u00e9tapes lorsqu'ils d\u00e9finissent les r\u00e8gles du masque de soudure.<\/p> <ol class=\"schema-how-to-steps\"><li class=\"schema-how-to-step\" id=\"how-to-step-1773134083798\"><strong class=\"schema-how-to-step-name\">\u00c9tape 1 - D\u00e9finir les r\u00e8gles d'extension des masques<\/strong> <p class=\"schema-how-to-step-text\">D\u00e9finir l'expansion globale du masque dans le logiciel de conception de circuits imprim\u00e9s.<br\/>Gamme typique : 2-4 mil<br\/><\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1773134096300\"><strong class=\"schema-how-to-step-name\">\u00c9tape 2 - V\u00e9rification des composants \u00e0 pas fin<\/strong> <p class=\"schema-how-to-step-text\">V\u00e9rifier les ouvertures du masque de soudure autour :<br\/>QFN<br\/>BGA<br\/>connecteurs \u00e0 faible pas<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1773134129021\"><strong class=\"schema-how-to-step-name\">\u00c9tape 3 - V\u00e9rifier les largeurs de barrage du masque<\/strong> <p class=\"schema-how-to-step-text\">Veiller \u00e0 ce que l'espacement entre les plaques adjacentes permette de supporter les barrages de masques.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1773134139200\"><strong class=\"schema-how-to-step-name\">\u00c9tape 4 - Effectuer des contr\u00f4les DFM<\/strong> <p class=\"schema-how-to-step-text\">Les fabricants examinent les donn\u00e9es relatives aux masques de soudure pour s'assurer de leur faisabilit\u00e9.<br\/>Le processus de r\u00e9vision de la DFM est d\u00e9crit dans le document : <strong><a href=\"https:\/\/www.topfastpcb.com\/fr\/blog\/pcb-dfm-checklist-before-sending-gerber-files\/\">Liste de contr\u00f4le DFM PCB avant l'envoi de fichiers Gerber<\/a><\/strong><\/p> <\/li><\/ol><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_PCB_Solder_Mask_Design_Mistakes\"><\/span>Erreurs courantes dans la conception des masques de soudure pour circuits imprim\u00e9s<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Plusieurs probl\u00e8mes de conception apparaissent fr\u00e9quemment dans les sch\u00e9mas de circuits imprim\u00e9s.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mask_openings_are_too_small\"><\/span>Les ouvertures du masque sont trop petites<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Peut couvrir partiellement les coussinets.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Insufficient_solder_mask_dam\"><\/span>Barrage de masque de soudure insuffisant<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Entra\u00eene un pontage de la soudure.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Incorrect_pad_definitions\"><\/span>D\u00e9finitions incorrectes des tampons<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Un d\u00e9calage entre le masque et les pastilles de cuivre peut entra\u00eener des probl\u00e8mes d'assemblage.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ignoring_manufacturing_tolerances\"><\/span>Ignorer les tol\u00e9rances de fabrication<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Les tol\u00e9rances d'alignement des masques doivent \u00eatre prises en compte.<\/p><p>De nombreux probl\u00e8mes de fiabilit\u00e9 lors de l'assemblage sont dus \u00e0 des probl\u00e8mes de conception \u00e9voqu\u00e9s dans le pr\u00e9sent document : <strong>D\u00e9faillances courantes des circuits imprim\u00e9s et probl\u00e8mes de fiabilit\u00e9<\/strong><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Manufacturing_Considerations\"><\/span>Consid\u00e9rations relatives \u00e0 la fabrication<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Les fabricants de circuits imprim\u00e9s \u00e9valuent les couches de masque de soudure lors de l'analyse CAM.<\/p><p>Ils font le point :<\/p><ul class=\"wp-block-list\"><li>ouvertures du masque<\/li>\n\n<li>masque d\u00e9gag\u00e9<\/li>\n\n<li>largeur des barrages<\/li>\n\n<li>tol\u00e9rances d'alignement<\/li><\/ul><p>Chez des fabricants tels que <strong><a href=\"https:\/\/www.topfastpcb.com\/fr\/about\/\">TOPFAST<\/a><\/strong>Les \u00e9quipes d'ing\u00e9nieurs v\u00e9rifient g\u00e9n\u00e9ralement les param\u00e8tres des masques de soudure avant la fabrication afin de garantir la compatibilit\u00e9 avec les processus de fabrication et d'assemblage des circuits imprim\u00e9s.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2><p>La conception des masques de soudure joue un r\u00f4le crucial dans la fabrication des circuits imprim\u00e9s et la fiabilit\u00e9 de l'assemblage.<\/p><p>En suivant des r\u00e8gles de conception pratiques - telles que l'espacement correct des masques, la largeur suffisante des barrages et la d\u00e9finition correcte des tampons - les ing\u00e9nieurs peuvent r\u00e9duire les d\u00e9fauts d'assemblage et am\u00e9liorer le rendement de la production.<\/p><p>Une coordination \u00e9troite entre les \u00e9quipes de conception et les fabricants de circuits imprim\u00e9s permet \u00e9galement de s'assurer que les couches de masque de soudure sont conformes aux capacit\u00e9s de fabrication.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"406\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-2.jpg\" alt=\"Masque de soudure pour circuit imprim\u00e9\" class=\"wp-image-5226\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-2-300x203.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/03\/PCB-Solder-Mask-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCB_Solder_Mask_FAQ\"><\/span>FAQ sur les masques de soudure pour circuits imprim\u00e9s<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-1773133323837\"><strong class=\"schema-faq-question\">Q : Qu'est-ce que le d\u00e9gagement du masque de soudure dans la conception d'un circuit imprim\u00e9 ?<\/strong> <p class=\"schema-faq-answer\">R : Le d\u00e9gagement du masque de soudure est la distance entre le bord de la pastille de cuivre et l'ouverture du masque de soudure, ce qui garantit que les pastilles restent expos\u00e9es pendant l'assemblage.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773133514435\"><strong class=\"schema-faq-question\">Q : Quelle est la largeur minimale du masque de soudure ?<\/strong> <p class=\"schema-faq-answer\">R : La plupart des fabricants de circuits imprim\u00e9s recommandent une largeur minimale de masque de soudure de <strong>4 mil<\/strong> pour \u00e9viter que le masque ne se brise.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773133582473\"><strong class=\"schema-faq-question\">Q : Que se passe-t-il si les ouvertures du masque de soudure sont trop petites ?<\/strong> <p class=\"schema-faq-answer\">R : Les petites ouvertures du masque peuvent couvrir partiellement les pads, ce qui entra\u00eene des joints de soudure de mauvaise qualit\u00e9.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773133596476\"><strong class=\"schema-faq-question\">Q : Quelle est la diff\u00e9rence entre les tampons SMD et NSMD ?<\/strong> <p class=\"schema-faq-answer\">R : Les pastilles SMD sont d\u00e9finies par les ouvertures du masque de soudure, tandis que les pastilles NSMD sont d\u00e9finies par la pastille de cuivre elle-m\u00eame. Les plots NSMD sont couramment utilis\u00e9s pour les composants BGA.<\/p> <\/div> <\/div><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Le masque de soudure est une couche protectrice appliqu\u00e9e \u00e0 la surface des circuits imprim\u00e9s pour \u00e9viter les ponts de soudure et prot\u00e9ger les traces de cuivre. Une conception correcte du masque de soudure est essentielle pour assurer la fiabilit\u00e9 de l'assemblage des circuits imprim\u00e9s et le rendement de la fabrication. Cet article explique les principales r\u00e8gles de conception des masques de soudure, notamment le d\u00e9gagement du masque, l'expansion du masque, l'ouverture des pastilles et les erreurs de mise en page les plus courantes. En suivant les r\u00e8gles pratiques de conception pour la fabrication (DFM), les ing\u00e9nieurs peuvent am\u00e9liorer la fiabilit\u00e9 de l'assemblage, r\u00e9duire les d\u00e9fauts de soudure et assurer la compatibilit\u00e9 avec les processus de fabrication de circuits imprim\u00e9s standard.<\/p>","protected":false},"author":1,"featured_media":5227,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[446],"class_list":["post-5223","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-pcb-solder-mask"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PCB Solder Mask Design Guidelines: Clearance, Expansion and Manufacturing Rules<\/title>\n<meta name=\"description\" content=\"Learn PCB solder mask design guidelines including mask clearance, expansion 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What is solder mask clearance in PCB design?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Solder mask clearance is the distance between the copper pad edge and the solder mask opening, ensuring pads remain exposed during assembly.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133514435\",\"position\":2,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133514435\",\"name\":\"Q: What is the minimum solder mask dam width?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Most PCB manufacturers recommend a minimum solder mask dam width of <strong>4 mil<\/strong> to prevent mask breakage.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133582473\",\"position\":3,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133582473\",\"name\":\"Q: What happens if solder mask openings are too small?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: Small mask openings may partially cover pads, resulting in poor solder joints.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133596476\",\"position\":4,\"url\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133596476\",\"name\":\"Q: What is the difference between SMD and NSMD pads?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A: SMD pads are defined by solder mask openings, while NSMD pads are defined by the copper pad itself. NSMD pads are commonly used for BGA components.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"HowTo\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#howto-1\",\"name\":\"PCB Solder Mask Design Guidelines for Reliable Manufacturing\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#article\"},\"description\":\"Engineers typically follow several steps when defining solder mask rules.\",\"step\":[{\"@type\":\"HowToStep\",\"url\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#how-to-step-1773134083798\",\"name\":\"Step 1 \u2014 Define mask expansion rules\",\"itemListElement\":[{\"@type\":\"HowToDirection\",\"text\":\"Set the global mask expansion in the PCB design software.<br\/>Typical range: 2\u20134 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What is solder mask clearance in PCB design?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Solder mask clearance is the distance between the copper pad edge and the solder mask opening, ensuring pads remain exposed during assembly.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133514435","position":2,"url":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133514435","name":"Q: What is the minimum solder mask dam width?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Most PCB manufacturers recommend a minimum solder mask dam width of <strong>4 mil<\/strong> to prevent mask breakage.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133582473","position":3,"url":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133582473","name":"Q: What happens if solder mask openings are too small?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: Small mask openings may partially cover pads, resulting in poor solder joints.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133596476","position":4,"url":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#faq-question-1773133596476","name":"Q: What is the difference between SMD and NSMD pads?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A: SMD pads are defined by solder mask openings, while NSMD pads are defined by the copper pad itself. NSMD pads are commonly used for BGA components.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"HowTo","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#howto-1","name":"PCB Solder Mask Design Guidelines for Reliable Manufacturing","mainEntityOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#article"},"description":"Engineers typically follow several steps when defining solder mask rules.","step":[{"@type":"HowToStep","url":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#how-to-step-1773134083798","name":"Step 1 \u2014 Define mask expansion rules","itemListElement":[{"@type":"HowToDirection","text":"Set the global mask expansion in the PCB design software.<br\/>Typical range: 2\u20134 mil<br\/>"}]},{"@type":"HowToStep","url":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#how-to-step-1773134096300","name":"Step 2 \u2014 Check fine-pitch components","itemListElement":[{"@type":"HowToDirection","text":"Verify solder mask openings around:<br\/>QFN<br\/>BGA<br\/>small pitch connectors"}]},{"@type":"HowToStep","url":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#how-to-step-1773134129021","name":"Step 3 \u2014 Verify mask dam widths","itemListElement":[{"@type":"HowToDirection","text":"Ensure spacing between adjacent pads can support mask dams."}]},{"@type":"HowToStep","url":"https:\/\/www.topfastpcb.com\/blog\/pcb-solder-mask-design-guidelines\/#how-to-step-1773134139200","name":"Step 4 \u2014 Perform DFM checks","itemListElement":[{"@type":"HowToDirection","text":"Manufacturers review solder mask data to ensure manufacturability.<br\/>The DFM review process is described in: <strong><a href=\"https:\/\/www.topfastpcb.com\/blog\/pcb-dfm-checklist-before-sending-gerber-files\/\">PCB DFM Checklist Before Sending Gerber Files<\/a><\/strong>"}]}],"inLanguage":"fr-FR"}]}},"_links":{"self":[{"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/posts\/5223","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=5223"}],"version-history":[{"count":1,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/posts\/5223\/revisions"}],"predecessor-version":[{"id":5228,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/posts\/5223\/revisions\/5228"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/media\/5227"}],"wp:attachment":[{"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/media?parent=5223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/categories?post=5223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/fr\/wp-json\/wp\/v2\/tags?post=5223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}