Electronics Forum | Tue Sep 07 17:12:34 EDT 2004 | davef
No one knows what type of board you use. So, assuming you're talking a fairly standard FR4. Q1a. actually, what is max temperature and duration can a bare PCB reflow without any quality problem? A1a. We'd guess your board could take 250*C for may
Electronics Forum | Thu Jan 08 16:43:43 EST 2004 | Dean
Unless your machine (internal) thermocouples are each calibrated and compensated no two machines will deliver eactly the same results. Here are your challenges: 1. Data acquisition equipment A-D converter errors 2. PCB measurement thermocouple (t
Electronics Forum | Mon Jul 10 11:38:15 EDT 2006 | Rob
Hi Dougs, I think I'm going to have to admit to some insider knowledge here. It kind of gave it away when you mentioned there were only catalogue pages instead of specs. http://www.anglia.com/product_search/part_tracker/index.asp I think you may
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
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
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
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
Electronics Forum | Mon Aug 08 20:25:39 EDT 2005 | plcc
Hi Davef, I'm suspecting that too! The recipe we are using is the optimum for good soldering results. I'm checking with our supplier on the type of pcb material. Do you know the recommended material for pcb undergoing reflow, under ROsH condition?
Electronics Forum | Wed Aug 23 09:16:42 EDT 2000 | Dave F
Dr. Lee: How do the metallurgical properties of solder change during a second reflow. Please provide detail on this phenomenon.
Electronics Forum | Mon Aug 08 08:08:10 EDT 2005 | davef
Could the temperature of your reflow recipe be exceeding the limits of the materials used to fabricate your board?
