Electronics Forum | Wed Apr 11 20:27:34 EDT 2018 | kellogs54
Hi All, Sorry if this seems a stupid question but we been having a huge amount or parts rejected on our placement machines. I started looking at the placement program and found the part tolerance date seems to tight. Before I go and open the tolera
Electronics Forum | Thu Apr 12 10:58:42 EDT 2018 | dleeper
I don't think there's really any industry standard tolerance setting or value. It's safe to open up the tolerances pretty wide as long as your placement accuracy doesn't suffer.
Electronics Forum | Thu Apr 12 16:55:58 EDT 2018 | esoderberg
I require component engineering to spec in multi vendor parts as long as the following exists 1.Mechanical +/- 15% 2. Same orientation in pocket 3. Same pocket dimensions I have to beat the engineering a few times per year but I think they have the
Electronics Forum | Wed Jan 30 05:36:04 EST 2002 | vincent_f
Hello everybody, I would like to use PCB which have expired. I have already planned to bake them in order to avoid pop corn effect but I wonder about some few items : 1) How can I identify the optimal baking parameters ? 2) Even after baking, is the
Electronics Forum | Wed Jan 30 17:49:41 EST 2002 | davef
PCB never expire, they just become more difficult to solder. [Many shops impose �shelf life� periods for their boards, but they aren�t going to discard the boards if the exceed the limits, unlike they would with some other process materials.] IDENT
Electronics Forum | Fri Feb 01 08:35:18 EST 2002 | gregers
PWB shelf life: HASL---3mth ENTEK-- 2mth Before using expired PWB, it is suggested to go thru HASL or ENTEK angain. Ask your VDR to serve this. Re immersion Au, mostly when the thickness under 3u"(micro pores present), the surface gold will serve a
Electronics Forum | Mon Jul 13 06:02:08 EDT 2015 | piyakorn
Hi All Some our customer has a new order but has been stopped long time ago (2012) which ENIG PCB in our raw material stock that are date code xx12 (still be vacuum sealed with silica gel) so,Will there be any risk or not? Help me please. Than
Electronics Forum | Fri Jul 24 16:33:45 EDT 2015 | cnotebaert
You should be fine! best practice for a situation like this would be to run a solder sample, either flux it and run through wave, or screen print, don't place parts and run through reflow. look for proper wetting characteristics if you see de-wetting
Electronics Forum | Tue Jan 22 14:25:13 EST 2019 | mia9490
Those the MY15 logs the jobs by date and time it was assembled? If yes how can I get to them.
Electronics Forum | Wed Jan 23 10:56:15 EST 2019 | mia9490
Thank you so much, I know it can print out the hours it took to do the job and the file info , but I can’t find where to print the log info of the jobs that where done with time and dates from last year .