Electronics Forum | Thu Sep 06 21:03:29 EDT 2001 | Poon Man
Eric, There are a lot of factors leading to lose components. Suppose your machine works properly. Firstly, is there any gap between the support pins and PCB? If yes, the components may be �dancing� during placement. Have you checked the placement s
Electronics Forum | Fri Jan 21 02:07:16 EST 2011 | obrant
I'm looking for good/clean used chip mounters. juki ke760 yamaha yg100xg panasonic cm202 fuji kikai cp7, 8, 9
Electronics Forum | Thu Sep 06 20:26:07 EDT 2001 | Eric
We see alot of missing component ( on/off ) after chip mounter, and had check on the component height, is correct. Nozzles had change, vaccume strong enough and table height. But we still have missing component.
Electronics Forum | Tue Jun 10 22:57:18 EDT 2014 | demzvill
Our observation also is that the tape size is too big for the chip which allows the tape to move around. With this i would like to know if there is is a setting in the machine that would slow the feeding rate. We are using juki mounter 2000 series. A
Electronics Forum | Sat Jun 07 23:37:34 EDT 2014 | demzvill
Hello all Good morning. I just want to ask with you guys about the problem that we always experienced in our production. We could not get our target ppm due. to inverted placement of chip resistor. We are using 2000 series juki mounter and cf03hp j
Electronics Forum | Tue Feb 28 16:58:39 EST 2006 | PWH
Too fast heating/cooling rate in reflow (look at mfg's spec.). Z "overdrive" on pick and place or chipshooter though unlikely I would say. Depanelization method (bending a scored board to break it is tough on things). Bad PCB design - cap. too clo
Electronics Forum | Fri Apr 18 16:53:25 EDT 2003 | takfire
DST, What was the crack signature? Was the crack parallel with the internal electrodes or 45� with the terminal electrode? It is also important to determine the orientation of the failed caps on the PCB (in regards to depaneling). Perhaps the cap
Electronics Forum | Fri Sep 15 09:14:55 EDT 2017 | dleeper
From my perspective, I like marked parts because I can use AOI to verify the correct parts are being placed in production. If an operator is going to load the wrong reel, I prefer to find out on the first PCB rather than after 5000 wrong parts have b
Electronics Forum | Fri Sep 07 14:51:36 EDT 2001 | Claude Couture
What kind/brand of machine are we talking about? Are the missing parts randomly distributed or are specific to a feeder/placement/pattern? Does your machine remember where to resume placement if you reset it in the middle of a pattern placement? We h
Electronics Forum | Fri Apr 11 14:53:50 EDT 2003 | MA/NY DDave
Hi A lot of good answers. "No verification was done on the part as it was deemed to be a "straight replacement". Sound familiar?" Yes this sounds familiar, yet I am never sure it is a new supplier or component problem. It could be that the old par
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