Electronics Forum: smt components popping off (Page 1 of 35)

parts popping off during reflow

Electronics Forum | Thu Sep 13 17:57:59 EDT 2001 | davef

You're correct. It is curious. Possible angles to look at are: 1 WS609 loves moisture in the air. In high humidity shops, this paste hakes-on liquid. If this is the case, you should also see slumping, resulting in fine pitch bridging, and solder

quoting smt

Electronics Forum | Tue Jun 08 19:44:01 EDT 1999 | wayne sanita

I am interested in seeing how some of you quote smt work. Currently we quote off a bom without component packages known then look in data books to find out what type of component they are. This job will be mine soon but i really believe there is a be

Components jumping off the board

Electronics Forum | Sun Jul 13 10:33:08 EDT 2008 | mpolak

Hello, Recently I have change our profiles. After I profile one board it look really good, within the paste spec. But I have noticed when board leaves the reflow zone and enters the cooling zone it looks like popcorn effect some components jumping o

Re: Bottomside smt falling off in wave in only voc-free flux

Electronics Forum | Tue Jun 15 12:03:27 EDT 1999 | Dave F

| Has anyone had issues where bottomside double reflowed smt has fallen off in the wave when using voc-free flux? I have verified the hotter profile was not the issue by using an alcohol based flux with no problems.This voc-free flux is also not caus

Re: quoting smt

Electronics Forum | Tue Jun 08 23:17:47 EDT 1999 | Scott Cook

| I am interested in seeing how some of you quote smt work. Currently we quote off a bom without component packages known then look in data books to find out what type of component they are. This job will be mine soon but i really believe there is a

Re: quoting smt

Electronics Forum | Wed Jun 09 17:53:06 EDT 1999 | Tom B.

| I am interested in seeing how some of you quote smt work. Currently we quote off a bom without component packages known then look in data books to find out what type of component they are. This job will be mine soon but i really believe there is a

Re: quoting smt

Electronics Forum | Wed Jun 09 23:48:38 EDT 1999 | dEAN

| I am interested in seeing how some of you quote smt work. Currently we quote off a bom without component packages known then look in data books to find out what type of component they are. This job will be mine soon but i really believe there is a

Re: Double sided smt

Electronics Forum | Wed Jun 03 13:50:32 EDT 1998 | Chrys

| Can anyone tell me if there is a reference for smt component height specs on the bottom side of a board, which will also go through wave soldering. A current design I am reviewing has tant caps(7343) and a crystal on the back side. Should I only b

blocking off stencil apertures with tape

Electronics Forum | Wed Oct 10 20:35:17 EDT 2001 | djarvis

Stephen, I don't understand this at all mate. 1. If you don't place a QFP and get bridging across the bare pads, you were gonna get absolutely horrendous bridging if you did put one down. That points to poor printer set up or stencil design or both

Skewed and popped components

Electronics Forum | Fri Sep 26 12:57:09 EDT 2003 | Angie

We have had some components that popped off in our IR oven. It was attributed to the solder paste. The humidity was above 60% the temp was about 70 degrees.

  1 2 3 4 5 6 7 8 9 10 Next

smt components popping off searches for Companies, Equipment, Machines, Suppliers & Information

KingFei SMT Tech
KingFei SMT Tech

Main Products: 1. Original new and Original Used SMT/AI Spare Parts. 2. SMT Equipments And Related Machine( SMT Calibration, SMT Feeder Carts,Conveyer etc.) 3. Maintenace and Repair Service Pre-Sales Service Provide details ab

Manufacturer's Representative / Manufacturer / Equipment Dealer / Broker / Auctions / Consultant / Service Provider

Building A, Jiepeng Square, Fuyong
Shenzhen, 30 China

Phone: 0755-33578694