Electronics Forum | Tue Sep 15 09:04:57 EDT 1998 | Chrys
| I was wanting to know if double sided reflow can be done with a metal plated BGA on topside. We would be running bottom side first. My boss seems to think the only way it can be done is by placing glue dots on the bottomside compoents because the
Electronics Forum | Fri Feb 10 12:21:44 EST 2006 | Cal Kolokoy
DaveF is correct in saying that TAL is not the best metric to use in reflow soldering. That is why paste manufacturers give such a wide range; typically 30 to 120 seconds. The peak temperature is more important, especially in the mixed Pb and Pb-F
Electronics Forum | Thu Mar 21 16:45:31 EDT 2013 | dyoungquist
We have been using a Heller 1707EXL (7 zones + 1 cooldown zone) for lead free (ROHS) soldering since 2007 with good results. I wouldn't go any lower than 7 heat zones though. If I may brag a bit....The IPC-7095 revision C standard was released a fe
Electronics Forum | Thu Sep 16 12:06:29 EDT 1999 | Scott S. Snider
| | | Hi, | | | | | | Can someone pls suggest to me the best reflow temperature setting | | | for a force air convection oven. The details is as follow. | | | 1) Heller 1700s | | | 2) 12 zone---6 top and 6 bot | | | 3) Solder paste --- Qualitek 691
Electronics Forum | Fri Aug 27 00:26:14 EDT 2004 | charly
hi, encounter few cases PCB was delam after reflow, and the supplier was refuse that this is a PCB manufacturing defect as the fallout is low within one lot. the cost for this scrap is high after PCBA level, my query here are 1) is there any way
Electronics Forum | Mon Aug 31 07:56:39 EDT 2009 | d0min0
Hello, since some days we are facing strange problem with SMT component reflow paste on one side of the component is reflowed correctly while the other side is 10%-70% non-reflowed (same component on 3 positions per module, alwyas the same land pad)
Electronics Forum | Wed Mar 17 22:04:05 EST 1999 | Dave F
| Looking for a company that makes a small batch reflow oven. Not a belt-style convection oven, but a cabinet style that can 125 c to 150 c. | | Thank you | Matt: The batch ovens we looked at were very difficult to program. They seemed to want t
Electronics Forum | Wed Apr 08 11:05:53 EDT 2009 | boardhouse
Hi, Need a little more info, 1) this board is definitely delaminated 2) this board looks like a Std FR4 board with 63/37 Hot air finish with probably 140 tg. material. Was this reflowed under lead free temps? 3) Do you Pre-bake product 4) What
Electronics Forum | Thu May 20 03:34:56 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 | | Omat baby, Mo
Electronics Forum | Fri May 21 13:57:02 EDT 1999 | KA Stillings
| | 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 | | | |
