Electronics Forum | Wed Mar 29 22:30:13 EST 2000 | cklau
Hi guys; There are a few points that should be taken in to considerations regarding IPC-SM-782 land pattern and design rules. As a general rule all SMT reflow pattern should be in comply with SM-782 but however for special cases like : * PLCC land
Electronics Forum | Thu May 10 19:22:06 EDT 2007 | joeherz
We have a board that requires a .015 - .035" finished lead length which requires us to do mass lead trimming. To this point we've performed this activity on parts with straight leads. We're looking at going to an axial auto-insertion process (outso
Electronics Forum | Thu Nov 30 17:00:59 EST 2000 | Charles Morehouse
I am interested to know what people prefer for fine pitch packaging. Tape/Reel or Waffle tray for .031", .025", .020", .015" pitch components? What is the most robust packaging (i.e. fewer bent leads, etc.) Chuck
Electronics Forum | Wed Mar 15 21:52:33 EST 2000 | Chuck Garth
A long time ago I had seen wiping fixtures in which the circuit board was placed and fingers bent the leads on the components. Can anyone supply me with their design. I can almost see them work but am missing on the finer points
Electronics Forum | Wed Mar 15 08:52:46 EST 2006 | russ
Best way to judge how good a profile is by measuring it. It is not real accurate to determine by the amount of residue left. You should be able to tell if the lead is bent causing the open.
Electronics Forum | Tue Mar 21 13:23:46 EST 2006 | Tech
Place it as a square. Vision type 10. Why would you even try to inspect leads on this? It's not like they could get bent.
Electronics Forum | Thu Feb 08 09:58:21 EST 2007 | realchunks
Got a picture? Most times I hear this situation it turns out to be a bent leg on a thru-hole transistor that didn't go through the board.
Electronics Forum | Mon Dec 01 13:17:43 EST 2008 | realchunks
Jandon, what is wrong with the picture you posted? Looks good to me? The first pix Wewilldoit posted were kinda scetchy except for the one with the bent up lead. It's not the toe fillets people - it's the heel fillets you have to look at.
Electronics Forum | Wed Aug 07 02:24:54 EDT 2019 | ameenullakhan
Hi Dave, Yes the lead was there before reflow. After reflow it has bent inside. The component was inspected before placement. We are unable to analyze, what might have went wrong. Regards, Ameen
Electronics Forum | Thu May 04 04:29:05 EDT 2023 | abhishek10
we have observed a Field claim in ECU where root cause is Lead lift found in one of the IC. What could be the possible reason for lead lift and how to avoid the same in future. QFP is the Type 1.Checked the Part Library(3-D Check Refernece no.-23
