[{"data":1,"prerenderedAt":376},["ShallowReactive",2],{"blog-what-is-solder-mask-fr":3,"header-nav-fr":46},{"title":4,"description":5,"date":6,"lastUpdated":6,"category":7,"image":8,"readingTime":9,"wordCount":10,"timeRequired":11,"htmlContent":12,"tags":13,"slug":21,"jsonld":22},"Qu'est-ce que le masque de soudure ? Materiaux, couleurs et regles","Le vernis epargne protege le cuivre et evite les ponts de soudure. Comparez les resines LPI, les couleurs de PCB (vert, noir, bleu) et les regles DFM.","2026-10-09","technology","/assets/img/pcb/multilayer/pcb-multilayer-pcb-hero.webp",3,442,"PT3M","\u003Ch2 id=\"points-cles-a-retenir\" data-anchor-en=\"key-takeaways\">Points cles a retenir\u003C/h2>\n\u003Cul>\n\u003Cli>\u003Cstrong>Definition :\u003C/strong> Une couche polymere mince et thermoresistante appliquee sur les couches externes du PCB, ne laissant apparaitre que les plages d'accueil et points de test.\u003C/li>\n\u003Cli>\u003Cstrong>Fonctions premieres :\u003C/strong> Empeche les ponts de soudure lors de la refusion, protege le cuivre de la corrosion atmospherique et isole electriquement les conducteurs proches.\u003C/li>\n\u003Cli>\u003Cstrong>Standard industriel :\u003C/strong> Le vernis photo-imageable liquide (LPI) est la norme universelle, applique par rideau, serigraphie ou pulverisation, puis insole par UV ou LDI.\u003C/li>\n\u003Cli>\u003Cstrong>Couleurs et inspection :\u003C/strong> Le vert reste le standard absolu car il optimise le contraste pour l'inspection optique automatique (AOI) et tolere les barrages les plus fins (3,5--4,0 mils).\u003C/li>\n\u003Cli>\u003Cstrong>Regles DFM cles :\u003C/strong> Degagement du masque (+2 a +3 mils par cote) et largeur minimale du pont de vernis (3,5 a 4,0 mils) pour eviter les courts-circuits sur circuits integres a pas fin.\u003C/li>\n\u003C/ul>\n\u003Cdiv data-component=\"BlogQuickQuoteInline\">\u003C/div>\n\n\u003Ch2 id=\"definition-et-role-du-vernis-epargne\" data-anchor-en=\"what-is-a-solder-mask-definition-and-purpose\">Definition et role du vernis epargne\u003C/h2>\n\u003Cp>Dans la fabrication de circuits imprimes, le \u003Cstrong>masque de soudure\u003C/strong> (ou vernis epargne) est un revetement polymere permanent isolant. Il canalise la brasure en fusion sur les pastilles CMS et empeche tout debordement sur les pistes adjacentes.\u003C/p>\n\u003Ch2 id=\"comparatif-des-couleurs-de-pcb-vert-noir-bleu-blanc\" data-anchor-en=\"types-of-solder-mask-materials\">Comparatif des couleurs de PCB (Vert, Noir, Bleu, Blanc)\u003C/h2>\n\u003Cp>Le choix de la teinte depend a la fois de contraintes optiques et de l'aspect visuel :\u003C/p>\n\u003Cul>\n\u003Cli>\u003Cstrong>Vert :\u003C/strong> Resolution la plus fine, durcissement uniforme, inspection visuelle optimale.\u003C/li>\n\u003Cli>\u003Cstrong>Noir (mat ou brillant) :\u003C/strong> Tres prise pour l'electronique grand public haut de gamme et les modules audio.\u003C/li>\n\u003Cli>\u003Cstrong>Blanc :\u003C/strong> Haute reflectivite (jusqu'a 90%), privilegie pour les circuits d'eclairage LED.\u003C/li>\n\u003Cli>\u003Cstrong>Bleu et Rouge :\u003C/strong> Excellent contraste fonctionnel sur cartes de prototypage.\u003C/li>\n\u003C/ul>\n\u003Ch2 id=\"questions-frequemment-posees-sur-le-vernis-epargne\" data-anchor-en=\"why-lpi-dominates-the-industry\">Questions frequemment posees sur le vernis epargne\u003C/h2>\n\u003Ch3 id=\"pourquoi-les-pcb-sont-ils-traditionnellement-verts\" data-anchor-en=\"pcb-solder-mask-colors-green-black-blue-and-beyond\">Pourquoi les PCB sont-ils traditionnellement verts ?\u003C/h3>\n\u003Cp>A l'origine impose par les normes militaires et la couleur brute des resines epoxydes, le vert demeure la teinte offrant la resolution la plus fine et le meilleur contraste.\u003C/p>\n\u003Ch3 id=\"quelle-est-la-difference-entre-pastilles-smd-et-nsmd\" data-anchor-en=\"why-is-the-pcb-green\">Quelle est la difference entre pastilles SMD et NSMD ?\u003C/h3>\n\u003Cp>En SMD, le vernis recouvre legerement le cuivre du pad. En NSMD, le vernis laisse un espace autour du cuivre, favorisant l'adherence et la fiabilite des billes BGA.\u003C/p>\n\u003Ch3 id=\"quelle-est-l39epaisseur-typique-du-vernis-epargne\" data-anchor-en=\"solder-mask-thickness-and-planar-coverage\">Quelle est l'epaisseur typique du vernis epargne ?\u003C/h3>\n\u003Cp>Elle est generalement de 10 a 15 µm au-dessus des arretes des pistes en cuivre et de 20 a 30 µm sur le stratifie nu.\u003C/p>\n\u003Ch2 id=\"ressources-associees-et-guides-techniques\" data-anchor-en=\"critical-dfm-rules-clearances-dams-and-mask-defined-pads\">Ressources associées et guides techniques\u003C/h2>\n\u003Cul>\n\u003Cli>\u003Ca href=\"/fr/blog/what-is-dfm\">/blog/what-is-dfm\u003C/a> - Comprehensive PCB Design for Manufacturing guidelines\u003C/li>\n\u003Cli>\u003Ca href=\"/fr/pcb\">/pcb\u003C/a> - Full fabrication capabilities and solder mask tolerances\u003C/li>\n\u003Cli>\u003Ca href=\"/fr/pcba\">/pcba\u003C/a> - High-speed SMT assembly and solder bridging prevention\u003C/li>\n\u003Cli>\u003Ca href=\"/fr/materials\">/materials\u003C/a> - Complete PCB substrate and laminate material catalog\u003C/li>\n\u003C/ul>\n\n\u003Csection class=\"related-links\" aria-label=\"Related\">\u003Ch3>Related links\u003C/h3>\u003Cul>\u003Cli>\u003Ca href=\"/fr/blog/what-is-dfm\">/blog/what-is-dfm\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"/fr/pcb\">/pcb\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"/fr/pcba\">/pcba\u003C/a>\u003C/li>\u003Cli>\u003Ca href=\"/fr/materials\">/materials\u003C/a>\u003C/li>\u003C/ul>\u003C/section>",[14,15,16,17,18,19,20],"Solder Mask","Solder Resist","PCB Colors","LPI Solder Mask","Solder Bridge","PCB DFM","Solder Dam","what-is-solder-mask",{"blog":23,"breadcrumb":32,"faq":45},{"@context":24,"@type":25,"headline":4,"description":5,"image":8,"url":26,"datePublished":6,"dateModified":6,"timeRequired":11,"keywords":27,"articleSection":7,"author":28,"publisher":31},"https://schema.org","BlogPosting","https://aptpcb.com/fr/blog/what-is-solder-mask","Solder Mask, Solder Resist, PCB Colors, LPI Solder Mask, Solder Bridge, PCB DFM, Solder Dam",{"@type":29,"name":30},"Organization","APTPCB",{"@type":29,"name":30},{"@context":24,"@type":33,"itemListElement":34},"BreadcrumbList",[35,40,44],{"@type":36,"position":37,"name":38,"item":39},"ListItem",1,"Home","https://aptpcb.com/",{"@type":36,"position":41,"name":42,"item":43},2,"Blog","https://aptpcb.com/fr/blog",{"@type":36,"position":9,"name":21,"item":26},null,{"pcbManufacturingColumns":47,"capabilityColumns":171,"resourceColumns":207,"pcbaColumns":251},[48,96,125,154],{"heading":49,"links":50},"Familles de produits 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