Electronics Forum | Tue Feb 23 09:51:35 EST 1999 | Steve Schrader
| Hey all- | | My question is this: My stencil printer operator has said that he has to | wipe our 6-mil stencil each pass to get the paste in the 20-mill pitch | aperatures for a QFP to release well. We are using Amtech NC-559 type 3 | paste with
Electronics Forum | Fri Feb 19 00:32:40 EST 1999 | ZEEK
| We are using .040" diameter fiducials (global and local) on our boards. They are solder covered and HASL. I get batches of boards where the p&p vision system has trouble reading the fiducial. The fiducial looks dark on the screen. The board ven
Electronics Forum | Tue Feb 16 02:19:29 EST 1999 | Joe
| I am fairly new to the SMT game and I am getting conflicting answers to the following. Maybe someone can help me! When printing, one person is telling me that the stencil should be wiped completely clean of all paste because the quality of the
Electronics Forum | Wed Feb 10 00:07:15 EST 1999 | Jason
Gary, I am also evaluating MRP/ERP systems. I have had many demos. I have looked at SAP R3, and actually used it at a previous employer, very complex system and a bit pricey. SAP is at http://www.sap.com , others I have looked at are Acacia Tech
Electronics Forum | Fri Feb 05 09:22:25 EST 1999 | Dave F
| | | Joni: What is it about your situation with the board/component/process that makes you want to explore alternatives? Dave F | | Dave: In our case the component is placed on metalled footprint which has via holes to transfer the heat via hole
Electronics Forum | Wed Feb 03 16:38:19 EST 1999 | Steve Gregory
| I'd like to find some technical papers on the reliability of reworked BGAs. If you know of any, please let me know. | | I have a concern about this because our current rework process does not apply solder paste to the pads prior to placing the pa
Electronics Forum | Tue Feb 02 14:23:47 EST 1999 | Steve Gregory
Hi ya'll! Well, I got the word that I can start looking for a rework machine now. Most of you know that I work at a start-up, so it goes without saying that we're not rolling in the dough. I've been looking at Pace's TF700 Thermaflow...seems pr
Electronics Forum | Thu Feb 04 08:10:38 EST 1999 | Tenison Stone
Steve, I was expecting a closeup like Bob's picture. Tenison | Hi ya'll! | | Well, I got the word that I can start looking for a rework machine now. Most of you know that I work at a start-up, so it goes without saying that we're not rollin
Electronics Forum | Tue Feb 02 09:47:45 EST 1999 | Justin Medernach
| Hi everybody. | Somebody know any consideration or special care to make a profile for BGA's. | | any advice is aprecied. | | thanks | Al Carrillo | | Hi Al, A BGA should be looked at just like any other surface mount device. However, just
Electronics Forum | Tue Feb 02 17:51:45 EST 1999 | gcollier
| | Hi everybody. | | Somebody know any consideration or special care to make a profile for BGA's. | | | | any advice is aprecied. | | | | thanks | | Al Carrillo | | | | | Hi Al, | A BGA should be looked at just like any other surface mount d
