Electronics Forum: after (Page 1 of 658)

Solder bridging after printing

Electronics Forum | Tue Jun 28 10:01:24 EDT 2005 | mskler

What is your stencil cleaning procesor.It sould not be wet after cleaning & what is room tempreture.?

Drying after aqueous wash

Electronics Forum | Wed Aug 02 16:47:44 EDT 2006 | Merle

Should drying be done after aqueous wash? If so, how long and at what temperature?

board delaminated after reflow

Electronics Forum | Tue Apr 07 22:34:14 EDT 2009 | 1036

Board delaminated after reflow - see attached picture. Does moisture cause this problem?

Re: tombstoning after wave?

Electronics Forum | Wed Dec 13 06:08:48 EST 2000 | jackofalltrades

We have seen this type of problem. After eliminating possibility after possibility we corrected the problem by throwing out the glue and starting fresh. It was not expired, just bad for whatever reason, we could not asertain what went wrong with it.

Component drop after reflow

Electronics Forum | Thu Jun 27 11:56:40 EDT 2019 | slthomas

It seems to me that it would be easier to manually apply a little bit of chipbonder on the edge of the part after the first reflow than to tape the part down. The epoxy would cure sufficiently before the second reflow to secure the part after the s

Component drop after reflow

Electronics Forum | Tue Jun 25 23:54:54 EDT 2019 | anhsang38

Dear Everyone, I'm having problem. the Switch component drop after reflow. First, this component placed on top side and through Reflow. Next, the Bottom side is placed component and through reflow. After that, the switch drop and have a gap. We are u

Solder height after reflow

Electronics Forum | Wed Dec 08 19:16:20 EST 2010 | jgalarza

Can anyone tell me if there is a formula for finding the after reflow height of solder with no part attached? I have to print some pads that do not have any parts but there can not be more than 1.5mil of solder on the pad after reflow. I am going to

Tarnish Occuring after Washing???

Electronics Forum | Thu Jul 21 08:29:05 EDT 2011 | diamondmt

I am having an recent issue occuring that after I have washed our PCBs using only high pressure DI water heated to approx 150 degrees and then being dried at 120 degrees, the once shiny metallic finish is now becoming a dull tarnished color, it does

flux residue after HAL

Electronics Forum | Tue Dec 26 10:54:37 EST 2006 | yusufgomec

We use hot air leveling (HAL) process in pcb production. HAL process is 3 steps. �n 1. step flux. 2. step is HAL. And 3. step is rinsing. As you know there is mustn't any flux after rinsing operation. Our flux chemical is water soluable. But there ar

solderballs after wavesoldering

Electronics Forum | Tue Aug 22 10:57:48 EDT 2000 | caumel

Hi folk's With some pcb's after wave soldering ,we find some solder blobs on vias. There seems to be air inside these blobs What can we check in order to solve this problem? Thanks in advance

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