Electronics Forum | Mon Dec 01 15:21:08 EST 2003 | davef
Hey, I thought you were in the BIG house on some trumped-up tax rap. We use many RF shields each month. Generally, the shields are not plated and made of alloy 770 (or alloy 752), half hard temper, as the base material. * Alloy 770; 55%Cu, 27%Zn,
Electronics Forum | Wed Dec 03 03:11:09 EST 2003 | ADAM
tHANKS FOR THE RESPONSE GUYS. I'll be checking out those websites during the day Cal. With regards to youR response Daniel. All our soldering materials are Alphametal products and are RMA based. As much as we would like to use ultrasonics on all our
Electronics Forum | Mon Jan 26 19:51:48 EST 2004 | davef
You should be able to obtain a smooth finish. A "glass-like finish" is in part a function of the coating material, assuming good process. When we see "orange peel" conformal coating, we think moisture from the spray room environment, conpressor, et
Electronics Forum | Wed Feb 11 11:53:42 EST 2004 | Maryann
Our company strictly does selective conformal coating applications for the customer. We will quite often see one side looks great, and the other side doesn't. We often see dewetting around holes, and have found this can be a possible flux build up. A
Electronics Forum | Thu Mar 04 20:26:11 EST 2004 | davef
Alloying lead does not affect its vapor temperature. As you and others mentioned, the vapor temperature is well out of the range of your processing temperatures. Some people concern themselves about potential health hazards of lead by thinking abou
Electronics Forum | Sat May 08 13:56:27 EDT 2004 | Ken
If this is a requrement from your customer then: They should supply the name/brand of the material, AND they must supply solder samples because their requiremnt is a destructive profiling technique. You should charge them more dollars for setup and
Electronics Forum | Wed Mar 24 15:15:35 EST 2004 | davef
I think you can effectively clean under any other low standoff device. It's an issue of surface tension, pressure, and flow rate. DI water is the starting point, but the surface tension of straight DI water makes it difficult to get under low stand
Electronics Forum | Wed Mar 24 15:08:08 EST 2004 | John
I'm working on a new product soldering to a thick film material. We currently use only No Clean solder pastes. The vendor that supplies the substrate has suggested going to an RMA paste to improve solderability. We haven't used any, but I'm not fa
Electronics Forum | Wed Apr 07 08:28:41 EDT 2004 | Dougie
Hi, We are Scottish manufacturing company considering a move to Immersion Silver finished PWB's from HASL. The driver behind it being the RoHS and WEEE legislation in Europe at present. My question is... We plan on using a Sn/Cu/Ni solder bar in o
Electronics Forum | Wed Apr 07 08:30:22 EDT 2004 | Dougie
Hi, We are Scottish manufacturing company considering a move to Immersion Silver finished PWB's from HASL. The driver behind it being the RoHS and WEEE legislation in Europe at present. My question is... We plan on using a Sn/Cu/Ni solder bar in o
