Electronics Forum: semtest and pcb (Page 5 of 52)

Re: SMT and PCB

Electronics Forum | Fri Nov 13 03:58:36 EST 1998 | B.D.

| I want to find information about SMT and PCB: | | Process | Manufacturing | How it work | Lynn, A good place to start to learn about this industry is to click on some of the resources that are on this site! You may want to obtain a book to s

PCB Identification and Tracking

Electronics Forum | Mon May 05 22:24:17 EDT 2003 | jlipton

We are investigating a system, using 2-D matrix code, that will identify and track every PCB throughout our factory, starting from bare board. As a low-medium volume manufacturer, would labels or laser marking be more cost-effective? How difficult is

Component Obsolescence and Availability

Electronics Forum | Sat Mar 19 04:31:37 EDT 2022 | SMTA-69080803

What are the feasible options in mounting an alternative component onto a PCB that has a different footprint? PCB redesign is not a good option because the component is used on several other PCBs. The component is very small (8-lead SOT-23) so fabric

Re: HAST and HALT

Electronics Forum | Sat Oct 24 06:07:09 EDT 1998 | Earl Moon

| Hi, | Am looking out for companies which would perform the "highly accelerated stress testing" for my PCB test assembly samples. does anybody have any info regarding this. | thanks, | subhash | Most independent PCB test labs, often doing military

Re: HAST and HALT

Electronics Forum | Mon Oct 26 14:56:07 EST 1998 | carl m

| | Hi, | | Am looking out for companies which would perform the "highly accelerated stress testing" for my PCB test assembly samples. does anybody have any info regarding this. | | thanks, | | subhash | | | Most independent PCB test labs, often do

Dye and Pry

Electronics Forum | Wed Mar 12 07:33:40 EDT 2008 | callckq

Hi All, One PCBA failed test after went through the Shock Test(Vibration) and suspected to be BGA solder ball crack. We performed dye and pry and found PCB's pad lifted with red mark ink penetrate pad underneath, what does this mean? Can I say the

Pick and Place Rivet

Electronics Forum | Tue Aug 12 14:49:26 EDT 2008 | awegener

I'm attempting to pick and place a small rivet onto our PCB. The rivet should be attached via reflow solder. The rivet will be used to create a sandwich, holding together a frame and additional circuit board in a package. This part is intended onl

Aluminum and silica contamination

Electronics Forum | Wed Jan 12 13:42:19 EST 2011 | dwonch

Hi All, I'm hoping there is a PCB expert or two hanging around. We're having some solderability issue on our boards. The finish is ENIG but it doesn't seem to be related to the finish process itself. We did SEM and EDX analysis and found aluminum an

PCB Thickness and BLR

Electronics Forum | Mon Jun 03 13:26:32 EDT 2019 | az2019

Hi, I have a general question about the relationship of PCB thickness and BLR testing result. For example, I have QFN6x6 parts mounted on board in 1.2mm, 1.6mm, and 2.4mm thickness. All boards have 6 layers of Cu. Studies show thicker board gives les

COB and wire bond

Electronics Forum | Mon Jun 03 12:51:17 EDT 2002 | V.RAMANAND KINI

We are doing COB operations for nearly ten years. Pls. write to me if you need info on m/c selection, type of PCB, plating etc., Thanks V.RAMANAND KINI...03.06.02


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