Electronics Forum: connections (Page 1 of 164)

BGA device continuity testing of solder connections

Electronics Forum | Mon Aug 16 00:05:52 EDT 1999 | Will Grubb

Hello I am looking for help in determining a simple (software based) method for testing the continuity of individual pins on an SRAM devices packaged in BGA. Can you help, or do you know someone who can help? Or do you know of an internet resouce whi

Re: BGA device continuity testing of solder connections

Electronics Forum | Mon Aug 16 04:38:18 EDT 1999 | Earl Moon

Hello I am looking for help in determining a simple (software based) method for testing the continuity of individual pins on an SRAM devices packaged in BGA. Can you help, or do you know someone who can help? Or do you know of an internet resouce

Re: Solder Connection Environmental Screening

Electronics Forum | Thu Aug 24 13:38:23 EDT 2000 | Dave F

It seems that sceening at -20�C and using a vibration profile similar to the one you mentioned does a good job of high-lighting defective solder connections on assembled boards, but not affecting good connections. Why is this happening? In there a

Solder Joint Shear (Visual) Condition?

Electronics Forum | Wed Jun 13 21:27:41 EDT 2001 | davef

It depends on if [1] your solder connection is properly wetted or not and [2] the connection was sheared properly or not. For a properly wetted connection and properly run shear process, it looks like someone cut the connection with a knife. Consid

Barrel fill with Pb Free Wave Solder

Electronics Forum | Wed Dec 10 16:15:24 EST 2008 | terryl

on the front end in design, minimize the pth connections to ground planes. this takes alot of work by the pcb designer and the approval of the design engineer. connect maximum of 4 ground planes to pth, minimum 1 plane. use spoked connections. ev

Solder paste type

Electronics Forum | Thu Sep 05 21:58:24 EDT 2013 | davef

Both SN100C and SAC305 are excellent and tested LF alloy formulations that with proper process management will produce good looking and reliable solder connections. "Bright & shiny" solder connections is NOT a good measure of a properly soldered LF c

Need Help from someone with experiance on connecting CSM60 to PC

Electronics Forum | Mon Mar 04 03:56:37 EST 2002 | wbu

As I recall you need to connect them via serial interface. Make sure the setting on both sides is matching and that you have Rx and Tx connected in your cable. Don�t remember any troubles with data exchange with this baby. Wolfgang

PBGA open connection

Electronics Forum | Tue Oct 03 09:23:55 EDT 2006 | kenscj

We are encountering BGA solder open connection. At Functional Test, the board failed. Debug guy diagnosed this BGA open connection (2 locations), by using multimeter. Under 5DX inspection, there is connection. Take the board for localised reflow at

QP341 production data collection

Electronics Forum | Mon Jan 07 12:42:15 EST 2008 | rschnic

We have a Fuji QP341 machine and would like to connect to the GEM port and collect production data. We are unable to connect to the standard port 5000. I assume this is because the controller is connected to it. Does anyone have any experience with

Loosing connection with server in a CMS laser equipment

Electronics Forum | Fri Oct 07 12:50:51 EDT 2016 | padawanlinuxero

Hello guys I am back! Guys I have a problem with the laser marker here, we use the laser to mark a 2D barcode on the pcbs for traceability, but for some reason since yesterday every time it tries to connect to the database to get the serial codes an

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