500 qfp bent leads results

Electronics Forum: qfp bent leads (Page 11 of 50)

QFP wetting

Electronics Forum | Mon Nov 12 01:18:29 EST 2007 | sin4d

Hi, ALL I experience some QFP with wetting issue on the heel of the lead. There is no fillet wetting on the heel which causes reject bt the customer, but not all the QFP. Could anyone pls help what is the causes of this problem, it is due to oxidati

QFP144 soldering problem

Electronics Forum | Wed Sep 05 08:10:45 EDT 2007 | davef

Questions are: * Do not judge the quality of a solder connection by the shineyness or color of the solder connection. Do you have smooth and unform flow, no pitting, and good wetting to the lead and the pad? * What is the temperature of the leads of

Lead Lift in QFP

Electronics Forum | Wed Jun 07 17:58:27 EDT 2023 | linux

are the ics jumping in the tray. if not seated correctly the lead lift at pickup. mostly lift lead causing by handling.

cold joint on 1 lead of IC

Electronics Forum | Thu Feb 08 08:54:56 EST 2007 | jhaviland

groundplane not heating properly.. Is it a J leaded IC? sometimes these get bent slightly in the packaging and sit just far enough off the board to cause solder problems.

QFP Solder PROBLEM

Electronics Forum | Thu Aug 25 08:26:48 EDT 2005 | DannyJ

Hi MM, Off the cuff, is it possible that the QFP leads were not coated? I'm by no means an expert in QFP manufacturing, but I do believe that there is a coating which enables solderability that is added to the leads somewhere in the process. I ha

Atmel QFP's

Electronics Forum | Tue Dec 04 16:00:42 EST 2007 | 18424

Hi, I was wondering if any of you operators/users have experienced any reflow solderability issues with any of the ATMEL QFP components with in the last three months. Leaded or lead free processes?

QFP PACKAGE MANUAL SOLDERING

Electronics Forum | Wed Oct 01 10:59:13 EDT 2008 | realchunks

Wouldn't it be cheaper to by quality parts? Most repair operators can solder a QFP 208 with a regular soldering iron, eyes closed and hands behind their back. If you are just touching up the leads because of co-planer leads, a regular iron is all

AOI-problems lifted lead on qfp-100

Electronics Forum | Tue Oct 05 02:57:41 EDT 2010 | patejl

Reese is right. We use algorithm our AOI but the make it find liftead lead on qfp or such... it took me all day to set program and even then some defects pass so that is why Im asking..