Electronics Forum | Mon May 15 12:36:12 EDT 2017 | edhare
I don't believe there should be any issues with > the HASL finish. The issue is how long on the > shelf and is a bake out required to remove > moisture from PCB, as in any FR4 PCB's that may > have had time to absorb moisture. > I don't believe
Electronics Forum | Tue Jul 25 13:40:04 EDT 2017 | davegoad
I have some CERSOT-23 transistor packages with castellated terminals. The 4th lead (drain castellation) is electrically connected to the top of the device by the castellation. The castellation goes up the ceramic body and contacts the metal package
Electronics Forum | Mon Oct 09 14:05:48 EDT 2017 | ilavu
Hello, I am trying to setup PSV on the GSM.The reason I am asking here is Universal does not sale this kit anymore. Machine Info is GSM UPS Software : 6.2.2.2 (Upgraded from OS/2) MCOS, EPC-16, 650HF, MMIT6 and 3 UIMC3 USB HUB installed PSV soft
Electronics Forum | Thu Jun 07 01:22:41 EDT 2018 | buckcho
Hello, the colleagues are all right. What I did in addition to show customers and quality that we either need or dont need a stencil: 1. Made a procedure - in there i defined 50 000 cycles and then the stencil has to be checked by me. In the checks
Electronics Forum | Fri Jun 15 01:44:21 EDT 2018 | buckcho
Hello, so i am not sure about the MSSQL. But i think that you have to order the printer feedback function or the closed loop software. Here is what we get in those files, which i think is okay for you: 2018-06-13T10:37:42.11
Electronics Forum | Tue Aug 14 08:19:45 EDT 2018 | buckcho
Hello, other colleagues gave you valid ideas. I found it helpful if i reduce the size of the cooling openings. I would suggest making the four big square into very small many diamonds. This would maybe decrease your voiding with 2-4 percent. Btw how
Electronics Forum | Thu Sep 20 03:31:42 EDT 2018 | minhhaioh34
Hi all, I need some pro help me with issue bubbles after coating. some information for some pro: Machine: Asymtek Chemical: Achime AVR80 Oven: IA 4 zoon4 ( setting 100 100 90 80 conveyor speed: 0.6 m/min). I had happened before and after the oven. W
Electronics Forum | Fri Feb 01 02:31:24 EST 2019 | sarason
You can buy an awful lot of PCB's with that budget. Having done multilayer at home for RF I would not recommend it. It took us 7 years to get a workable but I would not say reliable process running. 4 layer boards, plated through, green and silk scr
Electronics Forum | Thu Mar 07 12:41:31 EST 2019 | rodrigo
Hi all, Our MCS30 hasn't been used for years because we use F4G now. Today I went to power up MCS30 because I need to transfer to F4G an old program but MSC30 is not working. It said all boot devices failed. We found a dead backup battery in one of t
Electronics Forum | Tue Apr 23 10:31:59 EDT 2019 | laserpro
Hi all and thanks for viewing my post! My questions related to the subject line are as follows: 1. Does the Epoxy Solder Mask Layer of a PCB protect against moisture absorption? Is this a primary function of the solder mask? 2. Does exposed FR4 na
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