Electronics Forum: qfp soldering (Page 2 of 61)

Less solder with fine pitch qfp

Electronics Forum | Thu Oct 02 08:26:41 EDT 2008 | rway

We had similar issues until we went to a 6 mil stencil thickness.

Less solder with fine pitch qfp

Electronics Forum | Mon Sep 29 14:47:15 EDT 2008 | davef

Let's narrow this down. Questions are: * Are you putting the proper amount of solder in the board with your stencil print process? * If you are putting the proper amount of solder in the board, where is the solder going? Pick one and then fill-in th

Less solder with fine pitch qfp

Electronics Forum | Mon Sep 29 11:44:39 EDT 2008 | manishc

We r facing less soder problem with qfp,using 4 mil tencil and lead free paste,tried out different combinations of reflow profile,can anybody suggest?

Re: solder mask between qfp pads

Electronics Forum | Sun Aug 15 14:56:03 EDT 1999 | Dean

| One of the DFM suggestions I've seen is to remove the solder mask web, i.e. the mask between pads on 20-mil QFP devices. The rational is that if the mask is thicker than the pad the mask can prevent the stencil from making intimate contact with th

Re: solder mask between qfp pads

Electronics Forum | Mon Aug 16 04:47:04 EDT 1999 | Charles Stringer

| | | One of the DFM suggestions I've seen is to remove the solder mask web, i.e. the mask between pads on 20-mil QFP devices. The rational is that if the mask is thicker than the pad the mask can prevent the stencil from making intimate contact wit

Re: solder mask between qfp pads

Electronics Forum | Mon Aug 16 04:34:54 EDT 1999 | Earl Moon

| | One of the DFM suggestions I've seen is to remove the solder mask web, i.e. the mask between pads on 20-mil QFP devices. The rational is that if the mask is thicker than the pad the mask can prevent the stencil from making intimate contact with

Re: solder mask between qfp pads

Electronics Forum | Mon Aug 16 16:54:57 EDT 1999 | Scott Cook

| One of the DFM suggestions I've seen is to remove the solder mask web, i.e. the mask between pads on 20-mil QFP devices. The rational is that if the mask is thicker than the pad the mask can prevent the stencil from making intimate contact with th

Re: solder mask between qfp pads

Electronics Forum | Mon Aug 16 07:54:05 EDT 1999 | Peter Barton

| | | | One of the DFM suggestions I've seen is to remove the solder mask web, i.e. the mask between pads on 20-mil QFP devices. The rational is that if the mask is thicker than the pad the mask can prevent the stencil from making intimate contact w

Re: solder mask between qfp pads

Electronics Forum | Wed Aug 18 21:03:41 EDT 1999 | Dave F

| | | | | One of the DFM suggestions I've seen is to remove the solder mask web, i.e. the mask between pads on 20-mil QFP devices. The rational is that if the mask is thicker than the pad the mask can prevent the stencil from making intimate contact

Re: solder mask between qfp pads

Electronics Forum | Fri Aug 20 03:19:22 EDT 1999 | PeterB

| | | | | | One of the DFM suggestions I've seen is to remove the solder mask web, i.e. the mask between pads on 20-mil QFP devices. The rational is that if the mask is thicker than the pad the mask can prevent the stencil from making intimate conta


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