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 areas, it is possible to cover them. This prevents flux and solder from creeping up to the surface during assembly. Please feel free to contact us when you need assistance. 【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 produces printed circuit boards used in various aspects of daily life, including smartphones, car navigation systems, computers, wireless devices, ETC, automotive 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 specializing in circuit boards, we integrated these companies in 2004 and launched as Sanwa Electronic Circuit Co., Ltd. with a new divisional structure. During this time, thanks to the guidance and support of our clients, we have developed and grown as a dedicated printed circuit board company for over half a century, advancing alongside the progress of printed circuit boards. We sincerely appreciate your continued support and patronage.