Electronics Forum | Thu Oct 21 21:07:13 EDT 2021 | llawrence
Hi, Early this year, the company I work for released its first product using PCBs with SMT assembly. These boards are relatively simple with less than 30 components, mostly 0603 size resistors and capacitors with a few SOIC and one LQFP chip. These
Electronics Forum | Thu Jun 01 17:29:27 EDT 2000 | C.K.
Okay, so my boss gives me this little "side project" that nobody else wanted to do... ....our Component Prep area (an area that no Engineer wants to support) is in need of a thru-hole component counter - counts both bulked and reeled parts. They ha
Electronics Forum | Mon Jun 18 16:13:47 EDT 2001 | calipso
If a PCB is already going through ICT and some additional inspection method is desired to increase first pass test yield rates, what are the advantages/disadvantages of AOI vs XRay? The most common problems seen are missing or skewed components and i
Electronics Forum | Tue Dec 09 17:09:51 EST 1997 | Frank Silva
| We are doing a research on auto-inspection machine used for SMT component mounted PCBA. | If anyone would have more info., please give me some details. Mr. Szeto, my company is involved in manufacturing automatic x-ray inspection systems to provide
Electronics Forum | Wed Sep 05 10:58:28 EDT 2001 | Chris Cherry
We can perform testing on any size of boards or components and offer many different levels of service. We can provide full analysis and interpretation on a same day basis, or some people may choose to rent a lab for a period of time for extended pro
Electronics Forum | Fri Nov 09 20:15:26 EST 2001 | caldon
I concur with Dave.....I have done this often with little fall out. After rework reflow we would x-ray just to ensure an acceptable joint structure. Just for curiosity sakes....are you removing a defective BGA and replacing with a good one? Site pre
Electronics Forum | Mon Nov 12 11:05:43 EST 2001 | vbutani
You can get systems at various performance levels depending on your budget. The low cost systems are a great way to start off and then you can upgrade to a higher performance unit when you move to finer pitch components. Check out the VJ-1000LP at h
Electronics Forum | Wed Nov 21 10:41:03 EST 2001 | arzu
Hello, Sometimes you have no choice other than putting uvias in ubga's-pads. I know examples of high-end mass production of products with ubgas having voids. (no problems, but always voids visable in x-ray) I also performed a DOE a while ago to avoid
Electronics Forum | Thu May 15 03:14:33 EDT 2003 | Hon Choi
Dear all, Not sure if you have this experience, but we've been seeing shorts on the BGA's from a widely known supplier "i". These shorts can not be found on the X-Ray, and when we remove the BGA, the component is ok. We peeled a few BGA's off, and
Electronics Forum | Sat Jul 31 23:17:48 EDT 2004 | Bryan Sherh
Hi,Please 1.X-ray your board where you found pinholes.perhaps you'll found much voids in your joints,but not only the pinhole.this must be caused by the poor solderability of PCB mostly...or components. 2.Cross-section the pin hole or void in the joi
