Electronics Forum | Thu Aug 21 08:15:07 EDT 2008 | naynayno
Thanks Dave, I will be sticking with Manufacturing Engineering. These are good guidelines but what is standard clearance for various packages? This is a dimension we usually seek by eye, whether we will have a problem or not. We use straight DI -
Electronics Forum | Mon Feb 21 03:56:34 EST 2005 | abhirami
Agree with Davef. Smaller the chip, more the static charge. I used to see this even with normal chips. Get an ionizer blow. It should solve your problem. May be switch to antistatic tape if affordable.Regards. GV
Electronics Forum | Mon Sep 11 12:37:03 EDT 2017 | rvines1
Our AOI machines have actually caught wrong resistors before. A reel gets swapped, a vendor sends a wrong part, things happen. To think that we can't rely on resistor markings anymore, that just sucks.
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 | Wed Dec 14 06:16:50 EST 2005 | Rob
Hi Grant, Murata do 0402 chip caps on 50K reels - example: GRM1555C1H101JZ01J 0402, 100pf, NPO/C0G 50V 5% (make sure the final letter is included - the J denotes the reel size - D is standard 10K) Rohm MCR01 series (0402 resistors) come on 6inch, 1
Electronics Forum | Thu Nov 30 08:09:19 EST 2006 | INGE
Hi everybody, The matter is this: after reflow, on top side leads of chip components (resistor 0805)appear some empty balls of solder. In some cases this thing is only on the lead and the solder joint seems good, in other cases this empty ball is als
Electronics Forum | Wed May 21 14:47:49 EDT 2003 | radney
On the new 4797 T12W8P feeders we are having trouble picking the very thin chip resistors. Adding foam to the feeder (beneath the pick point) helps, but it only minimizes our frustration. Universal has a reel of these parts and they are looking into
Electronics Forum | Thu Feb 13 12:57:43 EST 2003 | Claude_Couture
So, to really get reliable pickup rates from new bulk feeders, I just need to replace all the chip shooters we have with more recent ones with pickup correction capability. So where is the saving? ;-) -Upside down resistors? not an issue. so what if
Electronics Forum | Wed May 21 17:11:37 EDT 2003 | radney
Yes to all of the above with the exception of the part sticking. The same parts are EASILY picked using the 4790/91 feeders on a 4790/91 machine. The new feeders just flip the part out when the feeder advances. Thanks! Lee
Electronics Forum | Fri Aug 23 22:22:01 EDT 2002 | caldon
We have a great sophistcated Manual/Semi Assembly station available for BGS, QFP, Chips, CSP......Can use matrix trays, tape reel,Cut tape reel, loose parts, and sticks. Please contact me off line for more details. I am not a salesman....AppsEng.
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