Electronics Forum: amtech (Page 3 of 5)

Soldering Issue in Sensor component

Electronics Forum | Fri Dec 27 14:27:40 EST 2019 | slthomas

We switched to a REL0 T3 paste, Amtech LF-4300. It wets the castellations more consistently. I believe that in our case it was more of a plating wetting issue with the parts, but yours sounds more like a pcb finish or thermal issue. That larger pad

Re: Squeegee Speed

Electronics Forum | Fri Feb 19 13:54:22 EST 1999 | Tuffty

| 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

Re: Squeegee Speed

Electronics Forum | Sat Feb 20 23:08:36 EST 1999 | GORDON DURPHEY

| 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

Re: Squeegee Speed

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

Re: Squeegee Speed

Electronics Forum | Mon Feb 22 14:21:14 EST 1999 | Rick Wyman

| | 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 |

Solder and flux

Electronics Forum | Wed Nov 06 05:13:01 EST 2002 | Dreamsniper

Crystalline flux if it is really clear should not be a problem. We were using Amtech paste before and we have the same results. Sometimes we mistakenly see it as a dry joint because of the reflections from the lighting of our Metcal inspection system

Stencil Cleaning OnBoard Forum Now In Progress

Electronics Forum | Thu Mar 01 10:46:11 EST 2001 | davef

Various lint free stencil wipe suppliers take various approaches to stencil cleaning. For instance ... Techspray Directions: Start with a dry TechClean Wipe (2358, 2361, or 2362) to remove excess solder pastes. Follow this with the 1608 Pre-Saturat

Re: Ceramic + Hi-temp solder

Electronics Forum | Wed Apr 21 20:50:26 EDT 1999 | Dave F

| I'm having problems with trying to get a good solder joint using a Ceramic PCB. We are using AMTECH hi-temp solder (ws-486 96.5/3.5ag). My profile looks great and I used the recommended profile from Amtech with a few adjustments. My max temp is abo

LGA component rework process on SRT machine

Electronics Forum | Sat Jun 05 13:38:22 EDT 2021 | ppcbs

For Linear Tech LGA's we solder bump the LGA using a .30mm solder ball then reflow with a tacky flux. This will provide a void free solder joint and adds a little height to the solder joint in case you use a flux that you want to clean from under th

Re: Ceramic + Hi-temp solder

Electronics Forum | Thu Apr 22 08:43:25 EDT 1999 | Michael N.

| | I'm having problems with trying to get a good solder joint using a Ceramic PCB. We are using AMTECH hi-temp solder (ws-486 96.5/3.5ag). My profile looks great and I used the recommended profile from Amtech with a few adjustments. My max temp is a


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