Electronics Forum | Fri Oct 01 13:44:57 EDT 1999 | Scott Cook
| Can someone suggest what material I have to use to protect components by electrical discharge on ptfe based boards? | It should have high resistivity, thermal stability (-40 +70 'C),perfect adherence on ptfe... | Many tahnks | Don't know what you
Electronics Forum | Mon Sep 20 11:53:41 EDT 1999 | Scott S. Snider
| HI everyone, | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 and .001
Electronics Forum | Thu Sep 23 21:51:27 EDT 1999 | harry
| | HI everyone, | | | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 an
Electronics Forum | Tue Jun 15 14:45:11 EDT 1999 | C. Cross
| I am looking for more information about: | | 1) What kind of evaluation can I do to measure the resistance to fall off of a bottom side glueded SMT component?; | | 2) There is some influence of doble wave solder machine (temperature, flux, etc) i
Electronics Forum | Mon May 24 10:17:54 EDT 1999 | john thorup
| Can anyone steer me towards a supplier of heatsinks suitable for use on a PQFP 160. Before you shoot me down in flames, I know that I am not going to get much heat away from the die because of the plastic but the application is such that the board
Electronics Forum | Sat Apr 03 19:56:56 EST 1999 | M Cox
I now have the opportunity to work on the MVII's. And I have some questions Do the PCB's have to have tooling holes for the transport of Boards in and out of the machine? These machines are running like S___t. Lots of parts in the reject bin, and s
Electronics Forum | Tue Apr 06 09:50:58 EDT 1999 | Justin Medernach
| Does anybody put QFP's on the backsides of boards? Can they be reflowed without falling off? Do you use adhesive? | I use a double sided reflow process all day, everyday. I've hung QFP240s with embedded heat sinks and they don't fall off. Yei
Electronics Forum | Wed Mar 17 19:58:00 EST 1999 | Marc Ruggiero
Hi folks, I am looking for inputs on a long-standing problem encountered in our shop: Bottom-side parts (passives) falling off in the Wave...where the only remnants of the part is a flattened glue dot of proper diameter and volume, and sometimes f
Electronics Forum | Fri Mar 12 15:23:06 EST 1999 | Steve Schrader
| SMTNetters: excellent Forum, keep up the good work all! | | We are in the process of purchasing a Dek Stencil Cleaner and we have been recommended to use Vigon SC200 solvent to remove Heraeus no-clean solder paste from stencils and mis-printed PCB
Electronics Forum | Fri Mar 12 17:59:29 EST 1999 | Bill Schreiber
| | SMTNetters: excellent Forum, keep up the good work all! | | | | We are in the process of purchasing a Dek Stencil Cleaner and we have been recommended to use Vigon SC200 solvent to remove Heraeus no-clean solder paste from stencils and mis-print
