Electronics Forum | Wed Apr 14 05:44:36 EDT 2004 | hun
Hi All, Just have a share with you guy. We are using T4 solder paste and also E-Stencil. We ahd try out Alpha, Kester, AIM and Qualitek. The result show Alpha had a very very heavy stack flux and can't get it clean off even by chemical
Electronics Forum | Fri Nov 09 08:57:56 EST 2007 | bbarton
By and large, the industry has determined that SAC alloys are the "best fit" for replacement of SnPb in our industry. SAC305 seems to be the default alloy at this time. There are several other alloys out there, each with their own strengths and weakn
Electronics Forum | Mon Dec 17 19:18:53 EST 2007 | bbarton
OH MY GOD!! Finally it's becoming public knowledge here on the streets. YES germanium is in this material. As much as these guys and ALPHA METALS wanted to keep these things secret, anyone with a halfway competent lab would quicky find out why all of
Electronics Forum | Thu Dec 07 11:38:04 EST 2000 | Dason C
Please advsie what kind of the solder paste which you are using and we have experience when using Alpha WS609 and found a lot of foaming. Beside, are you using the spray fluxer for your wave or not? If you have spray fluxer then you don't need to u
Electronics Forum | Tue May 01 15:39:34 EDT 2001 | blnorman
Anybody else out there using LR-737? How is it packaged? We're using it in Semco cartridges which include a dasher and stir rod (used because the paste and flux separate relatively easily). If you are using it in this configuration, do you get a p
Electronics Forum | Sun Oct 17 09:27:58 EDT 1999 | Steve Restinetti (aka Bix)
Our SMT department uses Alpha Metals WS629 solder paste exclusively. Does anyone else use this paste and what do they think of it? I haven't evaluated other pastes yet and think that I'm sure there is something better out there. Feedback would be app
Electronics Forum | Thu Oct 07 17:05:38 EDT 1999 | Bix
I am thinking on testing or possibly changing my company's solder paste brand. Anyone have any suggestions or hints on how to cover all my bases before making such a bold move? Present paste used: Alpha WS-629 Paste to trial: Multicore OA Sys WS-22.
Electronics Forum | Mon Sep 20 14:53:24 EDT 1999 | Doug
I've had some trouble pasting a test board for a MicroBGA trial. Most of the paste remains in the stencil apertures. The stencil is 6 mil thick, laser cut and electo-polished. The apertures are 12 mil in diameter with 20 mil pitch. We are using Alpha
Electronics Forum | Fri Jun 25 09:43:24 EDT 1999 | Dave F
snip | | Dear John/Earl | | Thanks for your clarifications. To me also the problem does not seem to be linked with the PCB. The Pre heater temp. is set at | 450 degree C. We are using Alpha Aq. cleanable flux. Can you elaborate on the Desired
Electronics Forum | Fri Jun 18 15:30:38 EDT 1999 | M Cox
What's wrong with the Tin? Just wondering MDCox | | Electroless silver had promise, from Alpha, but I don't know where this ended up. Also Omikron's "white" electroless tin is proported to be a good alternative, though I've never been a big fan of
