Electronics Forum | Fri Apr 23 14:14:49 EDT 1999 | Chrys Shea
| Hi everybody, | | I would like to bench mark the quality out of our wave soldering m/c as far as DPPM levels are concerned. Can somebody provide me with some figures at their site or anywhere else for the same. | | Thanks | Upinder | ====== | We
Electronics Forum | Sat Nov 10 02:00:58 EST 2007 | 5why
hi All, Anyone can advise or share procedure to mark programmable IC?
Electronics Forum | Fri Mar 28 01:45:10 EDT 2008 | En-Apple
I have problemabout fault reject rate at AOI very high, due to inspection letter or marking on IC body. It have uncleary. When I check at raw mat'l of IC it no problem but after pass reflow process it show marking not clear ( Laser marking type). Ple
Electronics Forum | Fri Nov 16 18:07:54 EST 2007 | wayne123
The way that the last two companies that I have worked for do is, as soon as the I.C is programmed it is marked with a either a gray or Yellow sharpie (just a small dot) in addition we always tried to make sure that this dot was at the end of I.C whe
Electronics Forum | Mon Mar 31 09:16:41 EDT 2008 | davef
What is changing the marking on the part? * Is flux residue coating the part to change the the way light reflects from the part surface? [Run a board with tape on the part, then remove the tape prior to AOI] * Is the heat of the oven changing the mar
Electronics Forum | Wed Apr 02 15:35:27 EDT 2008 | jdengler
Our AOI machine can save various views of the same part number since we all know that different manufacturers will mark parts differently, some manufacturers vary their own marks. We get parts from the same manufacturer but different date codes that
Electronics Forum | Thu Feb 04 12:01:07 EST 2016 | g2garyg2
Hi Luis A white mask typically helps in the marking process since you are not reliant upon the PCB layers to create the contrast. Laser marking is really an etching process, so if your laser is set properly (power and focus) the goal with mask is to
Electronics Forum | Wed Jan 27 20:18:42 EST 2016 | lordorica
Trying to find a laser marking machine. Thing is that most of my pcbs have white solder mask, so the when trying to read the 2D code is difficult due to the lack of contrast. Any idea? a different technology? regards
Electronics Forum | Mon Feb 08 15:46:15 EST 2016 | g2garyg2
I would be happy to accept some samples and mark them for you. PROMATION USA, 9522 58th Place, Suite 100, Kenosha, WI 53144 - Let us know
Electronics Forum | Tue Apr 01 09:46:26 EDT 2008 | patsama_n
Thank you for kindness advice. From the result of IC after pass the reflow process. The color of letter will change to similar color of material compound of IC. Then when we inspection by AOI machine, we have many problem about high fault reject rate
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