Electronics Forum: pass (Page 77 of 142)

Wave soldering - black residue / bridging

Electronics Forum | Fri Dec 27 02:11:31 EST 2019 | anteiv

Hello, We are having problems with SMD wave soldering (ERSA) used flux is BALVER ZINN 390-RX-HT https://www.balverzinn.com/tl_files/balverzinn/downloads/intern/TDB/PDS_390-RX-HT_EN.pdf https://www.balverzinn.com/tl_files/balverzinn/downloads/datenb

Foam fluxer maintenance, storage and cleaning

Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef

Purpose. This describes setting-up a wave soldering system set-up for a new assembly design or checking a wave solder machine operation with a test board. Applicability. To be used for new design printed circuit assembles and during machine accept

AOI vs. XRay

Electronics Forum | Tue May 08 13:39:27 EDT 2001 | genny

Thank you for your response. I have been told that x-ray strength is finding solder volume and pattern root cause defects, and will catch a high % of them - opens, shorts, insufficient solder, and missing components(shape of solder on pad w/o lead i

No Technical content, but please read...

Electronics Forum | Fri Apr 23 12:50:17 EDT 1999 | Steve Gregory

Hi all, The email below was sent to me by a member of the TechNet, and I though I would also post it here. It doesn't have any Technical content, but I think it's something that's worthwhile reading. Flame me for posting it here if you want to...I r

Re: No Technical content, but please read...

Electronics Forum | Fri Apr 23 14:08:29 EDT 1999 | Chrys Shea

I got this via email this morning and forwarded it to many of my friends. My lights will be on this weekend... I wish I had Steve's forethought to forward it to our SMTnet community. Good going, buddy. Chrys Hi all, The email below was s

Re: Placement Machine CPk Kit

Electronics Forum | Wed Sep 09 12:39:22 EDT 1998 | Chrys

I am attempting to locate a kit to be used on surface mount equipment to determine the placement capability (CPk). Does anyone have information on where to purchase such a kit? Ideally this kit should be usable on placement equipment from various

aoi

Electronics Forum | Thu Sep 19 21:46:01 EDT 2002 | scottefiske

In the past year I was responsible for developing and leading a Team focused on AOI, Evaluation, Justification, and with a full ROI required, supporting a HMLV manufacturing environment. If you have in these economic times the additional resources t

Re: career change

Electronics Forum | Tue Dec 12 15:22:50 EST 2000 | Michael Parker

Dave - the most significant difference between the two titles (that I have experienced) is the location of assignment. Usually MFG. Eng.'s are responsible to a fixed set of equipment and are more concerned with how the product acts within the machine

Re: Process Characterisation

Electronics Forum | Thu Nov 30 04:02:26 EST 2000 | Chris May

Michael, Thanks for your response. More info:- The processes are as follows, Stencil Print (6 thou on DEK 248) Placement on Contact 3AV and Reflow on BTU 4 zone Top & Bottom oven.It is not an In-Line system. Our board technology is mixed but heavi

Re: Process Characterisation

Electronics Forum | Thu Nov 30 13:51:33 EST 2000 | Michael Parker

Thanks for the details. Next question- where is your first time pass rate measured? Is this at test? Do you have inspection gates at the end of each process step? To get to the root cause, you need the earliest detection. Collect attribute data by a


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