Make your own printed circuit boards with Negative Photosensitive Dry Film. You can make fine pitch professional quality PCBs at home. ... <看更多>

If I want to remove even cured photoresist, I can use stronger solution of washing soda or ethanol for couple of minutes. I'm using: DuPont ... ... <看更多>

Anyone got a video on using the sheet solder mask? 7 mos. Recent Posts. Printed Circuit Boards DIY. Mar 26󰞋󰟠. Example of using dry film photomask. ... <看更多>