Electronics Forum | Thu Apr 11 14:31:15 EDT 2002 | aaelect
We're having some problems with 0402's tombstoning. On a board with about 300 parts we're getting about 12 to 20 tombstones per board. The caps seem to do it more often than the res. The pads appear to be in accordance with IPC SM 782 amendment 1, S
Electronics Forum | Thu Apr 11 20:35:22 EDT 2002 | davef
Messy. Messy. Messy. Consider gluing these components, until you control your process. It is unclear to us that a single factor drives these defects, but multiple factors that need to be tuned to work well together. PAD DIMENSIONS * Some SM-782 pa
Electronics Forum | Thu Jul 09 08:34:14 EDT 2009 | rway
Hi, do you know where and how we can tests 0402 > ceramic capacitors? We would like to test them > individually before we place them on our board; > so as to get some test yield and the distribution > of the parameters of this component based on
Electronics Forum | Fri Jul 10 01:50:53 EDT 2009 | jan_mancelita
> Hi, do you know where and how we can tests > 0402 > ceramic capacitors? We would like to > test them > individually before we place > them on our board; > so as to get some test > yield and the distribution > of the > parameters of this c
Electronics Forum | Tue Jun 14 17:25:29 EDT 2005 | peter ng
the pcb pad design problem?(the component able to fully located at the pad?).....or maybe the component(cap)problem?try to exchanged the part and reverse the pcb direction of the reflow entering.
Electronics Forum | Thu Mar 08 12:40:54 EST 2001 | Ralph Merk
We are currently using 0402 resistors and capacitors in our production process. Our equipment is as follows: - DEK 265 - Siemens S25/F5 - Vitronics XPM520(5 zones) - 2% silver solder Alpha WS678 The problem is that randomly some 0402 capacitors are
Electronics Forum | Fri Jun 24 15:37:24 EDT 2005 | KT
Also check for any Vian-in-pad designs that could cause the problem.
Electronics Forum | Fri Jul 06 09:39:18 EDT 2001 | johnw
Hi guys I am having problems with skewed placement of 0402 devices I would like to add the board has raised pads and we are placing on glue. We are now printing the glue rather that dispensing with a GL5. have any of you guys had this pro
Electronics Forum | Wed Oct 12 08:02:31 EDT 2011 | emeto
It looks like a nozzle size issue. Make sure you have the right nozzle size for the part as well as the right feeder.I think that if the machine takes the parts from the feeders, it can't be feeder problem. Usually parts will jump out of the feeder
Electronics Forum | Fri Dec 15 12:08:26 EST 2000 | Alex B.
i'm going to try placeing 0402 with a fuji IP2. Will i have any problems and are there any sugestions thanks in advance Alex B
