Electronics Forum | Fri Feb 09 16:29:22 EST 2007 | dave
Hi All, Thanks for all the replies. I am placing a 672 Pin BGA. Its the only BGA on the board (Board size 220mmx100mx1.6mm) We build these in batches of 400. So we have built approx 1200 since transition to Leadfree. Latest batch had 7 fails -
Electronics Forum | Sun Mar 11 08:28:10 EDT 2007 | dave
Hi All, I would like to get some advice from users who place rfshields pre-reflow and reflow onto board. We ran a batch a few months back and boards which had the shields reflowed failed to function properly ~ I was happy enough that the profile
Electronics Forum | Fri May 26 03:58:07 EDT 2006 | dave
Hi, We have a 5 zone oven and we use a RTS Profile. Our last zone is the zone that the reflow takes place. some basic analysis is as follows: TAL 70 secs, peak temp 210,ramp rate seems fine. A typical setting is : Z1 140 Z2 160 Z3 160 Z4 185 Z5 220
Electronics Forum | Sun Mar 05 13:02:00 EST 2000 | dave
We used this type of paste in a fine pitch application for over two years with no problems. You must be very careful of any (dust)or spillage while mixing for obvious reasons. In my opion the very thing that makes it interesting "freshness" is also i
Electronics Forum | Sun Mar 26 20:14:12 EST 2000 | dave
I'm looking for a extension arm to fit on a Zevatech 8mm feeder which will allow us to use a 13" reel instead of the standard 7" reel. Does anyone make these or will I have to buld my own???
Electronics Forum | Sun Mar 05 13:02:00 EST 2000 | dave
We used this type of paste in a fine pitch application for over two years with no problems. You must be very careful of any (dust)or spillage while mixing for obvious reasons. In my opion the very thing that makes it interesting "freshness" is also i
Electronics Forum | Tue Jul 17 18:19:09 EDT 2001 | dave
CONNECTOR, 4 X 40, MALE, SM, 0.472 STANDOFF301-00030TOLC�Mount(1,27mm),.050",(0,64mm) .025",micro pitch Looking for someone who has had experience placing this Samtec style of connector .We are having issue with open solder and insufficent. We are no
Electronics Forum | Thu Feb 04 09:09:07 EST 1999 | dave
Can anyone help me with the pros and cons of trying to wave solder tantalum and large (1812) ceramic capacitors. I do know that one may see fractures on larger cermaic caps, but have not seen much on the tantalums. Any insight as to what problems I c
Electronics Forum | Sat Sep 06 17:28:16 EDT 2003 | dave
I'm looking for a simple low cost tool to get part position and rotation info from gerber- is there anything out there?
Electronics Forum | Wed Oct 22 16:44:51 EDT 2003 | dave
Hi, I was wondering what are the differences between a "trailing edge" style squeegee and a "diamond section" edge style. What applications tend to favor one over the other? Thanks. We are using a DEK 265
