Electronics Forum | Thu Apr 03 11:14:05 EDT 2008 | johnivanov
Hello, I need names of good, reliable PCB houses capable of doing 4 mil laser drilled vias. Any input is appreciated. Thanks,
Electronics Forum | Tue Apr 08 15:27:33 EDT 2008 | arminski
hi experts, need more info on what's happening with the LPI Solder Mask on an FR4 PCB during reflow of both Leaded and Lead Free Process? Do they become soft as well while exposed to the extreme temperatures? regards,
Electronics Forum | Mon Apr 28 11:13:21 EDT 2008 | ck_the_flip
Here's a crude wettability test. Take a PCB - both types of finish - print them, and reflow with no components using your standard profile. Observe the wetting spread and flow of the solder paste. This rules in/out that it's PCB solderability.
Electronics Forum | Mon Apr 28 14:26:53 EDT 2008 | arminski
Hi guys, do you have any issue aqueous cleaning pcb's with potentiometers? We have issues such as water penetrating inside the potentiometers causing shorts or electrical problem in the field. what is the drying temp and time you have in your experi
Electronics Forum | Fri Aug 01 08:10:29 EDT 2008 | scotceltic
Has anyone come across a standard or study (JEDEC, IPC) where it has the recommended shelf life outside of a dry box for immersion silver coated PCB's to prevent oxidation from affecting the soldering process (Both reflow and Wave). I know it will
Electronics Forum | Fri Aug 08 23:53:04 EDT 2008 | hanward
Our engineer said when we deliver silver coated PCB to customer,we will use vacuum airbag packing with desiccant inside.And when you receive it,keep them in warehouse below 24 centigrade.If you have opened the packing,it seems no good way.
Electronics Forum | Thu Aug 14 18:13:21 EDT 2008 | pms
See them funky via pads ?? What's your opinions ? Junk or acceptable ?? Anyone know of an IPC manual that has pics and standards of defective and acceptable PCB's ?? Thanks
Electronics Forum | Mon Aug 18 03:43:07 EDT 2008 | zpivy
here to download directly http://www.pcbpartner.com/Excel/model/PCBPartnerEn.rar
Electronics Forum | Fri Aug 15 07:18:03 EDT 2008 | mbnetto
Hello, I usually receive files with the extensions BRD / CAD / PCB but I don't know what software I can use to view these files. Does anybody know where I can find a software to download to view these kind of files??? Thanks!
Electronics Forum | Fri Aug 22 00:11:16 EDT 2008 | rameshr
Hai, I wish to know the advantages & disadvatages of using the Ultrasonic cleaners for cleaning the assembled pcb. Can anybody help us.
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