Electronics Forum: gsm limit switch (Page 13 of 14)

Re: To clean or not to Clean??

Electronics Forum | Mon May 31 15:09:56 EDT 1999 | JohnW

| | | | | | | | I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi

Re: To clean or not to Clean??

Electronics Forum | Mon May 31 15:10:14 EDT 1999 | JohnW

| | | | | | | | I have always thought it to be a good practice to wash SMA's with water soluble paste (WS609) soon after reflow. Is there a time limit as to how long a board should sit after reflow before washing said board? For instance; processi

Re: CSP Assembly- SIR Test

Electronics Forum | Thu Dec 31 14:20:35 EST 1998 | Michael Allen

Kelvin, Yes, we're referencing the same spec. I performed the test under the Class 2 conditions (except that I used a 100V bias rather than 50V...but my water-washed microBGAs still passed). Regarding the omegameter test: we have this instrument,

Re: Solder Paste from 500 gram tubes.

Electronics Forum | Wed Jul 21 11:49:24 EDT 1999 | Deon Nungaray

| | | | I recently switched from solder paste in 500 gram jars to 500 gram tubes. I did this to try to limit the time the paste is exposed to the room environment. But we have a need to clean the stencil every 4 - 5 boards which means taking the bulk

Re: Hey Ya'll, let's talk about Lead fer' a bit...

Electronics Forum | Mon May 03 18:11:10 EDT 1999 | Steve Gregory

Hi Ya' John! Here's my comeback to the points you've raised...you knew I would have a comeback, didn't ya'? |Steve, | | I see your point, and yes there are alot bigger fish to fry in |the removal or control of lead in the environment. However even

Re: Hey Ya'll, let's talk about Lead fer' a bit...

Electronics Forum | Mon May 03 18:11:32 EDT 1999 | Steve Gregory

Hi Ya' John! Here's my comeback to the points you've raised...you knew I would have a comeback, didn't ya'? |Steve, | | I see your point, and yes there are alot bigger fish to fry in |the removal or control of lead in the environment. However even

Re: Hey Ya'll, let's talk about Lead fer' a bit...

Electronics Forum | Tue May 04 14:37:44 EDT 1999 | JohnW

| Hi Ya' John! | | Here's my comeback to the points you've raised...you knew I would have a comeback, didn't ya'? | | |Steve, | | | | I see your point, and yes there are alot bigger fish to fry in |the removal or control of lead in the environment

Re: Hey Ya'll, let's talk about Lead fer' a bit...

Electronics Forum | Wed May 05 03:57:00 EDT 1999 | Bernard Mulcahy

| Hi Ya' John! | | Here's my comeback to the points you've raised...you knew I would have a comeback, didn't ya'? | | |Steve, | | | | I see your point, and yes there are alot bigger fish to fry in |the removal or control of lead in the environment

Flason SMT Products

Electronics Forum | Thu Oct 04 00:05:25 EDT 2018 | gaintstar

Flason SMT chip mounter Reflow Ovens: http://www.flason-smt.com/product/PCB-assembly-line-equipment-SMT-spare-parts-Dek-Motor-188962.html http://www.flason-smt.com/product/PCB-Conveyor-for-LED-Production-Line-SMT-Assembly-Line.html http://www.flason-

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