Electronics Forum | Wed Sep 29 05:30:59 EDT 2010 | patejl
Hi We have a problem here in the company with AOI system, most of the problem is lifted lead on qfp components.We are using SAKI BF-planet-x. Most of the defects like mising components 603 or 402 are no problem but if it comes to lifted lead even
Electronics Forum | Sat Nov 06 14:39:50 EST 1999 | Gary Moravchik
I am seeking sources of reliability and thermal stress data that compares BGA (50mil ball pitch) to QFP (20mil lead pitch)packaging for automative applications. Substrate material is epoxy glass. The ultimate goal is to collect sufficient data to hel
Electronics Forum | Thu Sep 21 14:29:58 EDT 2006 | realchunks
Gotcha, I used to be in charge of a pneumatic gun that clipped and bent the leads. Hand held units that worked rather well. The operators where very good at aiming the clipped lead too! Anyway, you may want to visit Panasonic, they have/had a disp
Electronics Forum | Mon May 14 18:59:23 EDT 2007 | mazemach1
I would like to ask anyone who may have use any equipment or device to check SMT socket leads. We have co-planarity problems with these sockets on the boards. The sockets we have are packaged in tubes and mostly the bent leads appear in different loc
Electronics Forum | Tue Jul 30 05:26:46 EDT 2019 | ameenullakhan
thanks dave .. I have one more query on the same CCGA. What are the chances of the CCGA lead getting bent or tilt during reflow soldering process. Concern : to achieve the minimum peak temperature of 208 deg C at the connecting leads. On bod
Electronics Forum | Mon Nov 12 19:47:33 EST 2007 | sin4d
Hi, Thanks. Waitng for your reponse. BTW, if I were to perform a test as below will this give me some result to indicate if the component is defective. 1) Print solder paste on plain PCB without copper track. 2) Mount the QFP & reflow 3) If the sol
Electronics Forum | Wed May 26 05:05:04 EDT 2004 | curious
hi, we have a batch-rework for a axial 2-lead LED component. we are thinking of bending both ends of the axial-leads into a L-shape at 90degree angle, and solder the flat-end of the L-shape flatly to the PCB's SMT pad. hope the experienced guys/exp
Electronics Forum | Mon Sep 21 07:20:41 EDT 1998 | Ben Wilmot
The tool I require is for QFP lead formng (as used by the manufacturer presumbly). Or a contractor that can perform this operation.
Electronics Forum | Sun Sep 22 09:36:04 EDT 2002 | davef
Sometimes the cut end of QFP leads have corrosion that is very difficult to solder. If this is what you're talking about, it is not a defect according A-610C, 6.5.2, Exposed Basis Metal
Electronics Forum | Thu Aug 05 09:09:01 EDT 2004 | Kris
is QFP lead co plnarity an issue ? If the QFPS are not sitting in the paste and that can be random if they are very close to the manufacturing tolerence Thx
