The “yellow light” process in PCB lithography involves photoresist coating, exposure, development, and etching, with careful control to avoid foreign particle contamination, enhance adhesion, and minimize side etching, all while using specialized protective films for FPC manufacturing.
FPC Protective Film and Yellow Light Exposure in PCB Manufacturing Read More »
The key requirement for etching quality is the complete removal of all copper layers except under the resist layer, with issues often originating from previous process steps and the use of additives to control side etching and undercutting ratios. WellCircuits Limited specializes in high-precision circuit boards to meet diverse customer needs.
The Etching Process for the Outer Layer of PCB 3 Read More »
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Operating from China, WellCircuits stands as a top-tier manufacturer of premium PCBs & PCBAs.
Our expertise lies in crafting multilayer flexible circuits, rigid-flex PCBs, HDI PCBs, and Rogers PCBs.
We excel in rapid-turnaround PCB prototyping and thrive on handling challenging projects as our forte.