Electronics Forum | Wed Nov 29 00:26:39 EST 2006 | mack3000
Hello everyone, I've been facing some issues regarding:- 1)missing components 2)overturn 3)misalignments Why does this occur?Is it because of the machines?The programming?Or handling issues? What steps are needed to be taken to counter this problem
Electronics Forum | Wed Mar 14 16:23:01 EDT 2007 | J
I am not sure Ersascope and X-Ray will tell you the results you are looking for. My experience with x-ray has proven that misalignment, voids, and bridging are really the only failures that can confidently be observed. You may have solder in place,
Electronics Forum | Tue Mar 20 19:18:53 EDT 2007 | diesel_1t
Hi to all, thank you very much for your feedback. The part is rotated before inspection; and also tend to be shifted to the same direction of pre-rotation so i think is not correcting misalignment or maybe some settings on shape data are not correc
Electronics Forum | Fri Nov 30 23:28:54 EST 2007 | mika
BTW, Option 6. Bear in mind though, In the stencil printer if you run into a problem like this, it will not work with the holes...Only what's in the stencil... We have under some rare circumstances used 1-2 pad's on opposite corners and on very large
Electronics Forum | Wed Jul 02 19:10:45 EDT 2008 | arminski
Hi, Say I'm going to calculate my PPM and DPMO, do I have to include in my defects data an item that the root cause is already identified? example is if I have 4 components with Land Design issues (incorrect dimension) and is causing me insufficient
Electronics Forum | Tue Nov 11 13:03:12 EST 2008 | snsmt
I aligned the parts to be on thecenter, but it keeps getting misaligned. http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=PCE3508TR-ND and http://search.murata.co.jp/Ceramy/image/img/PDF/ENG/L0114S0133DLW21S.pdf hope this helps.
Electronics Forum | Fri Nov 14 17:37:58 EST 2008 | snsmt
WHat about bad mounting? i have 2 fixtures and sometimes it would mount with no misalignment and sometimes it would. WHat could be the problem in this case/ I know the fixtures are good because they work on a different program that we have. I don't u
Electronics Forum | Thu Apr 30 12:50:07 EDT 2009 | realchunks
Could be board support. Breakaway boards are a little more flimzy than boards without. A bowed board will cause miss placements - again can be overcome with proper supports (depending on the machine) I would bet that the boards with breakaways h
Electronics Forum | Fri Apr 30 00:20:33 EDT 2010 | sudhir14
We are using QP fuzi m/c during the placement of comp. PCB is fixed & placement head is movable This component is placed at last but still we are getting the problem Comp. is placed with slowest setting also slowest comp. transfer speed of nozzle h
Electronics Forum | Wed Sep 01 08:25:31 EDT 2010 | sachu_70
Tombstoning is a result of imbalanced force experiences by the device during reflow due to unequal behavious of the solder paste across all sides of the device. Could be due to many factors a few of this are: (1) Unequal solder mass distribution, (2)
