By embedding solder resist ink in the through-hole section, it is possible to cover it!
We would like to introduce our "Solder Mask Plugging Board." By embedding solder mask ink into the through-hole sections, it is possible to cover them. This prevents flux and solder from wicking up to the surface during assembly. Please feel free to contact us if you have any inquiries. 【Applications】 ■ Device boards, etc. *For more details, please refer to the PDF document or feel free to contact us.
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Sanwa Electronic Circuit manufactures printed circuit boards used in various aspects of daily life, including smartphones, car navigation systems, wireless devices, ETC and onboard equipment, and medical devices. Our company was founded in 1955 as Sanwa Electric Manufacturing Co., Ltd. After expanding production and sales through four group companies in the circuit board sector, we integrated these companies in 2004 and launched anew as Sanwa Electronic Circuit Co., Ltd. with a divisional structure. During this time, thanks to the guidance and support of our clients, we have developed and grown as a specialized company in printed circuit boards for over half a century, advancing alongside the evolution of printed circuit boards. We sincerely appreciate your continued support and patronage.