Electronics Forum | Sat Apr 10 09:24:44 EDT 2004 | ccl
u are right, Dave, AUS 5 is a LPISM paste. Thanks a lot for the advise and ref. given. rgd ccl
Electronics Forum | Tue Apr 06 11:17:01 EDT 2004 | ccl
hi, i encounter gold surface contam issue on wire bonding ring after prebake at 150 C for 3 hrs, tis cause wire bonding non stick issue. the contam seem begin at the solder mask area toward center of the bonding ring, but is not consistance.
Electronics Forum | Wed Apr 07 10:10:00 EDT 2004 | ccl
thanks Dave, solder mask use is AUS 5 from Taiyo ink, solderability of the contam area is still pass the min spec. gold thickness is ~ 1 um and Ni layer is ~10um. can solder mask bleed cause contam? forget to tell the product is full body gold (FBG)
Electronics Forum | Mon May 13 03:06:12 EDT 2019 | peterchan
pcb/led/fpc/ccl/xpc/fr4/xpc board cutting machine if you interested in,please contact us email:s1@hk-yush.com
Electronics Forum | Sat Jul 25 00:10:18 EDT 2020 | xinyao
LIKE THIS?
Electronics Forum | Mon Jul 27 13:26:00 EDT 2020 | lpbro
Get a gimbal for your phone to steady the shot. The video will look much more professional.
Electronics Forum | Fri Jul 24 03:23:34 EDT 2020 | xinyao
So I got this fully auto running machine line, that automatically pick, cut, edge grind, corner round the copper clad laminate, and I do not have a professional camara to shoot a video. How can shoot it with my phone, and still it looks amazing? Than
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