Electronics Forum | Tue Mar 03 14:07:07 EST 2009 | macisaint
I'm having shorts appear on my QFN packages between pins, usually only after a week or so of power-on operation. The shorts are 1K and slowly down to hard shorts over time. Typically a defective part will have failures on multiple pins. I tried havi
Electronics Forum | Fri Mar 06 10:32:34 EST 2009 | fountain42
Yes, We've already experienced this same problem. 1) What kind of flux are you using? No Clean? Rosin? OA? 2) If it's OA, What kind of water wash do you do? Do you use DI water? How Hot? Who's machine? What are the pressures? 3) Have you performed a
Electronics Forum | Wed Apr 23 17:28:46 EDT 2008 | davef
The need to prebake boards to remove moisture from the board [to prevent voiding] prior to wave soldering is driven by the thickness of through hole plating. * 1 thou [25um] or greater requires no prebaking * LT 1 thou [25um] requires prebaking
Electronics Forum | Mon Jul 01 08:06:22 EDT 2013 | sarason
There is my shareware package PCBSynergy https://pcbsynergy.com It doesn't do spliting out of the box but you can split the file in Excel and then re-import. All up board prep less than 5 minutes. There are also quite a few commercial packages suc
Electronics Forum | Fri Sep 16 09:14:29 EDT 2005 | actech
We have just launched a new contract assembly house and I was wondering if there was anybody out there that had an honist formula for calculating labor cost for the purpose of bidding assembly work, "is there a good canned software package that actua
Electronics Forum | Thu Sep 07 03:57:39 EDT 2000 | Steven Cheung
Does anyone know of a freely-available document which discusses the main considerations of BGA assembly and inspection (x-ray?). l need to know about pad sizes and inspection standards and when to underfill and when not to etc.. l am looking at ass
Electronics Forum | Wed Apr 23 19:00:39 EDT 2008 | stevek
It depends on the laminate but a PWB is like any other MSL component. Some fab shops are only waranting standard FR4 laminates for 45-60 days when processed at lead free temperatures. The best thing I can say is to try some weight gain/loss experim
Electronics Forum | Wed Jan 16 14:46:41 EST 2002 | jdill
Is anybody out there using ScanPlace or any other type of Scanner cad package? Our current scanmount system went down and scancad no longer supports our scanner so we need to upgrade. I just want any kind of remarks from anyone about the scanplace s
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 | Tue Nov 06 09:10:02 EST 2007 | ralphspm
What would be the best software packages available to produce assembly programs from basic gerber data?I'm using FUJI CP3 & IP1 M/C's with fujiflexa software.
Golden State is a contract manufacturer that makes wire harnesses, electromechanical assemblies (box builds, subassemblies, PCBAs, kits, etc.) and services (sorting, rework, value additive manufacturing engineering)
18220 Butterfield Blvd
Morgan Hill, CA USA
Phone: 5102268155
