Electronics Forum | Thu Apr 21 13:20:16 EDT 2005 | patrickbruneel
If spacing is not to small you could use a temporary peelable mask used in wave soldering. Or have your PCB manufacturer screenprint a peelable mask on for you. These suggestions are only if the mask needs to be removed, If not permanent solder mask
Electronics Forum | Mon Apr 26 17:12:14 EDT 2004 | babe
Take a solder iron with some wire solder and attempt to tin the leads of the component. Look under magnifier or microscope. Did they wet? If not try fluxing them with liquid flux and then soldering again. Did they wet? If they did not then you may wa
Electronics Forum | Tue Sep 28 09:16:10 EDT 1999 | Wendy Casker
| | What selective soldering products should I use for a low production rate, high-mix product line? I am looking to get rid of some hand soldering. I have seen exselect (selective soldering pot method), pillarhouse (small flow solder nozzle with rob
Electronics Forum | Sat Mar 29 01:59:09 EST 2003 | iman
Yep, only the MLF have this blowhole/pinhole issue. Other components like SOT(transistor), CAP, RES are hey-o-kie. Btw, MLF = micro lead frame (IC/LGA) package. looks like a BGA without the solder balls. has direct attachment to the PCB ENIG pads wi
Electronics Forum | Tue Aug 24 13:45:17 EDT 2004 | Indy
Hi, I am trying to assemble a LTCC component with Pd/Ag surface finish on to Sn/Pb/Ag solder and Sn/Ag/Cu solder. I am passing it through a reflow. I have observed poor wettability at the solder-pad joint. Does anyone have information regarding th
Electronics Forum | Tue Aug 24 13:47:14 EDT 2004 | Indy
Hi, I am trying to assemble a LTCC component with Pd/Ag surface finish on to Sn/Pb/Ag solder and Sn/Ag/Cu solder. I am passing it through a reflow. I have observed poor wettability at the solder-pad joint. Does anyone have information regarding th
Electronics Forum | Tue Aug 24 13:47:16 EDT 2004 | Indy
Hi, I am trying to assemble a LTCC component with Pd/Ag surface finish on to Sn/Pb/Ag solder and Sn/Ag/Cu solder. I am passing it through a reflow. I have observed poor wettability at the solder-pad joint. Does anyone have information regarding th
Electronics Forum | Thu Jan 22 13:01:14 EST 2015 | dyoungquist
We are using a nitrogen generator (with a N2 storage tank) that feeds 1 selective solder machine. I do not know which type of generator it is. The N2 generator has an oxygen analyzer on it. The selective solder manufacturer recommends a N2 purity
Electronics Forum | Mon May 09 17:27:46 EDT 2005 | cmiller
They are expensive so you need to have a lot of jobs that take a long time to hand solder or have a ton of masking. Also look at bottom side wave soldering, if you are having a lot of defects, the selective will allow you to solder both sides in surf
Electronics Forum | Mon Dec 06 12:27:01 EST 2004 | Scott B
We are currently reviewing a design which has a leadless chip scale package with a solder thermal pad on the underside. The application notes for the device specify use of a no-clean solder paste as the gap under the device will prevent cleaning. Is
