As an introduction to the basics of printed circuit boards, I will introduce the manufacturing flow of a 4-layer printed circuit board.
At Sato-Sen Co., Ltd., we provide high-quality printed circuit boards that meet the increasing demands for high functionality and high precision by offering solutions to the concerns and problems faced by those involved in design, development, technology, and purchasing. We will introduce the manufacturing flow of 4-layer printed circuit boards as part of "The Basics of Circuit Boards." [Overview of The Basics of Circuit Boards] - Inner layer materials and inner layer pattern formation - Lamination - Drilling - Copper plating - Outer layer pattern formation, and more For more details, please contact us.
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**Manufacturing Flow of 4-Layer Printed Circuit Boards** ○ Inner Layer Materials (Copper Foil, Substrate, Copper Foil) [Inner Layer Pattern Formation] ○ DFR Lamination ○ DFR Exposure ○ DFR Development ○ Etching ○ DFR Stripping ○ Blackening Treatment [Stacking] ○ Before Stacking ○ After Stacking [Drilling] ○ Drilling holes based on the inner layer pattern [Copper Plating] ○ Chemical Copper Plating ○ Electrolytic Copper Plating [Outer Layer Pattern Formation] ○ DFR Exposure ○ DFR Development ○ DFR Etching ○ DFR Stripping [Solder Resist and Silk Formation] ○ Solder Resist Printing ○ Solder Resist Exposure ○ Solder Resist Development ○ Solder Resist Curing ○ Silk Printing [Surface Treatment] ○ Flux ○ Lead-Free Leveling ○ Flash Gold Plating ○ Bonding Gold Plating [Continuity Inspection] ○ Detecting disconnections and short circuits using checker pins [Outline Processing] ○ Cutting to the shape of the final product [Shipping Inspection] ○ Conducting visual inspection of all units [Packaging and Shipping] ○ Completion ● For more details, please contact us.
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Sato-sen Co., Ltd. provides high-quality printed circuit boards that meet the increasing demands for high functionality and high precision, by proposing solutions to the concerns and problems of those involved in design, development, technology, and purchasing. Sato-sen offers customized, high-quality products and services tailored to various customer needs. As a partner company for our customers, Sato-sen delivers high added value throughout all processes, from design and development to production and delivery. Furthermore, by thoroughly adhering to a customer-first principle, we provide high-quality products and services with flexible and meticulous responsiveness, ensuring that customers receive what they want, when they want it.
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