Electronics Forum: how many times can i reflow hr370 material (Page 1 of 4)

How many times can a component go through reflow oven?

Electronics Forum | Thu Sep 03 11:38:28 EDT 2009 | dyoungquist

I'd be more concerned with the pcb itself then I > would be with standard SMT components. Are you > using a PCB with a high Tg? (170 degrees C or > greater) The circuit board material is NP-170B (Nan Ya Plastics Corporation). It has a Tg of 170

Re: Popcorn @ reflow

Electronics Forum | Fri May 21 15:40:58 EDT 1999 | JohnW

| | | hello...can somebody help me regarding the POPCORN at Reflow. What is this POPCORN at reflow, what it looks like, its cause and corrective action if there is... | | | | | | your help is greatly appreciated...thanks | | | | | | omat marasigan

Re: Popcorn @ reflow

Electronics Forum | Thu May 20 19:11:48 EDT 1999 | Earl Moon

| | hello...can somebody help me regarding the POPCORN at Reflow. What is this POPCORN at reflow, what it looks like, its cause and corrective action if there is... | | | | your help is greatly appreciated...thanks | | | | omat marasigan | | | Deo

Re: Popcorn @ reflow

Electronics Forum | Thu May 20 15:07:12 EDT 1999 | JohnW

Earl, your colourful impressive descrptions are a joy to read..well lighten's up my day but maybe it's just me...ummmm..? anyhoo, Omat, as Earl has said ..this is a moisture sensative problem basically the reason you blow the shit out of the compon

Re: Popcorn @ reflow

Electronics Forum | Sat May 22 19:38:59 EDT 1999 | Omat Marasigan

| Earl, | | your colourful impressive descrptions are a joy to read..well lighten's up my day but maybe it's just me...ummmm..? | | anyhoo, Omat, as Earl has said ..this is a moisture sensative problem basically the reason you blow the shit out of

Frequency to verify the reflow profile

Electronics Forum | Fri Jun 03 09:00:06 EDT 2005 | russ

How many times have you found that your oven was performing differently? this will give you the answer on frequency. We have a dedicated board and profile that we use to verify the oven operation. We perform this every 3 mos. and I believe that th

Re: Oven Temperature for Solder Reflow

Electronics Forum | Sun Aug 08 20:59:55 EDT 1999 | Dreamsniper

| | | What oven temperature should be used to reflow solder (Sn63Pb37) on a PC board (0.075" to 0.100" thickness) in 5 to 10 minutes? | | | | Profiling - tedious but important. As said, start with the paste manufacturers recomendation which is usua

Re: Oven Temperature for Solder Reflow

Electronics Forum | Sat Aug 07 11:33:55 EDT 1999 | JohnW

| | What oven temperature should be used to reflow solder (Sn63Pb37) on a PC board (0.075" to 0.100" thickness) in 5 to 10 minutes? | | Profiling - tedious but important. As said, start with the paste manufacturers recomendation which is usually pu

Re: To clean or not to Clean??

Electronics Forum | Sun May 30 18:52:35 EDT 1999 | Graham Naisbitt

| | | | | | 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; processing a

Re: reflow/cure/wave for double side assembly

Electronics Forum | Mon Oct 04 07:47:34 EDT 1999 | park kyung sam

| | What are pro's and con's of reflowing top side first and curing bottom side chip components, and then wave soldering bottom side? | | | | How about curing bottom side first and reflowing top side later? | | | | What percentage of companies run

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