Electronics Forum | Tue Jul 29 03:32:19 EDT 2014 | cmchoue
The solder in MB become to yellowish after thermal test (100 oC/12HR) I think the problem that is flux residue and I really want to know the principle that why it color change Thanks!!
Electronics Forum | Wed Oct 23 14:33:44 EDT 2002 | lhoang
Any one encountered the problem such as poor conductivity when the silkscreen mis-registrated on the solder pads ? Thanks; Linh
Electronics Forum | Sun Nov 03 08:28:29 EST 2002 | davef
We have had poor solderability from silk screen being on pads, but have never measured the conductivity.
Electronics Forum | Sat Aug 14 17:39:37 EDT 1999 | Gerry S.
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 the
Electronics Forum | Wed Oct 07 17:36:48 EDT 1998 | Ted Nicholas
Hello! Does any one know of a disadvantage of using the Phillips recommended wave solder SOIC footprint where the last pad on each side of the SOIC is enlarged, instead of placing an extra pair of pads behind the SOIC. Both footprint patterns seem e
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
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
Electronics Forum | Fri May 07 05:47:44 EDT 1999 | Charles Stringer
This is not strictly a surface mount query but any input welcome I am thinking of using surface mount solder thief pads for a through hole connector. The connector is two rows of 0.1" pitch pins and on waving there is often a bridge on the last two p
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
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
