Electronics Forum: rejected (Page 16 of 61)

Mydata linear stick feeder

Electronics Forum | Wed Apr 15 13:03:14 EDT 2009 | toddscherrsymcomcom

I am looking for any input on the linear stick feeder from Mydata. We currently use a vibe feeder and have a high number of miss picks/rejects on SO8 packages. Is the linear stick feeder worth the investment to upgrade from vibe?

BGA voids

Electronics Forum | Thu Apr 23 15:46:08 EDT 2009 | ccross

During initial profiling we shoot for 15% or less voiding on our BGAs. During production runs we consider voids under 15% to be ok. Voiding between 15%-25% we string tag and pay more attention to during test. Over 25% we consider a reject.

Anyone Familiar with Zip-Top Moisture Barrier Bag?

Electronics Forum | Tue Jan 12 11:35:55 EST 2010 | stepheniii

We have been receiving LEDs in these type of bags. The HIC says they are good. But we don't want to find out that there is a problem, at test or by customer returns. Does anyone reject them at receiving as not properly packaged when the parts are

PCB Pad become brownish after IR reflow

Electronics Forum | Wed Sep 16 22:41:51 EDT 2009 | linseeg

PCB finishing is immersion white tin. The brownish is at random location at PCB pad. The issue only affect visual reject but no solderbility functional failure.

BOTTOM SIDE CHIP COMP FALLEN OFF IN WAVE SOLDER

Electronics Forum | Sun Nov 22 10:25:39 EST 2009 | rajeshwara

We are using LOCTITE 3606 HAVING torque 70 kgf.cm , but the comp fallen off in wave ...Rejection is 1 to 2 %. Plz help

30 Layer PCB with 70% fallout. Are the 30% good?

Electronics Forum | Mon Feb 01 13:17:38 EST 2010 | davef

We'd reject the lot, as an excuse to sit with our supplier and try to determine the cause of the problem.

PCB Surface Question - Picture attached

Electronics Forum | Wed Mar 24 01:22:38 EDT 2010 | itzikbs

These boards had solder mask issues, where manufecter took the boards and said he will rework them. All boards has the same problems as in the picture attached. We rejected the boards, but still I appriciate an explanation what can go wrong if I us

static issue on 0603 led tape and reel

Electronics Forum | Wed Oct 13 08:37:49 EDT 2010 | denisp

we have a static problem with 0603 led when removing the plastic retainer from the tape and reel. same problem with the feeder causing reject and bad placement. is there someone having the same problem? and how to fix it. thank you

PCB Surface Cleaner

Electronics Forum | Wed Nov 16 23:01:54 EST 2011 | bergenindia

Hi! Thanks for posting about sticky rollers.Such ideas help out a lot in overcoming problems such as in this case, the problem of rejected PCBs.

Quad 4C part placement rejection

Electronics Forum | Wed Nov 16 17:30:29 EST 2011 | olddog

Hi again Bobpan, One thing I noticed when I pulled the z-rod to inspect it was that it was "bearly" finger tight. When I replaced it, I snugged it a bit better (not overtightening). After resuming setting up additioanl placements (this board requires


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