Electronics Forum: concern (Page 1 of 209)

A concern about conformal coating height

Electronics Forum | Fri Jul 06 10:08:21 EDT 2007 | blnorman

The coating thickness is more a property of the individual coating itself. The 0.03 - 0.13 is based on average properties of acrylics in general. It's like trying to pour 3 mils of motor oil on a table. The material will find it's own thickness.

A concern about conformal coating height

Electronics Forum | Thu Jul 05 22:56:53 EDT 2007 | gyverlo

Hello Sirs: Recently we are having an issue with environmental stress (high humidity or moisture), so we decide to apply conformal coating on our motherboard to protect via holes. According to IPC-A-610D, spec of thickness for type AR is 0.03~0.13 m

Electrolytic solder

Electronics Forum | Tue Mar 20 08:46:26 EST 2001 | Joe S

When someone has a concern about solder being electrolytic, what is their concern?

Static Concerns

Electronics Forum | Mon Jan 11 10:29:07 EST 1999 | Tom OConnor

I know that static concerns are very important in your work. Are static concerns eliminated by the antic-static devices you wear or which are in your environment, or do the hand tools you use, such as picks, tweezers and brushes, need to be anti-stat

Lead free contamination at reflow

Electronics Forum | Tue May 16 07:32:05 EDT 2006 | aj

Contaminate your Leadfree Process with WHAT? What contamination are you concerned about? Its an oven - it doesnt care what you put in it... Your main concern is that you can achieve the desired Leadfree Profile...dont be confused or concerned whe

HOW TO REDUCE MACHINE SET-UP TIME???

Electronics Forum | Mon Jul 04 17:57:41 EDT 2005 | rodionp

James, sounds like you need one of these: Feeder Arrangement Feeder arrangement problem concerns assigning components to the feeder slots Placement Sequence Placement sequencing (or insertion order) problem concerns determining the sequence in wh

0402 package size

Electronics Forum | Fri Jun 02 19:43:40 EDT 2000 | Ravi Bhat

One of my customers has asked about concerns, comments, ideas about putting 0402 packages on bottom side of the board. The process will be no clean with reflow/reflow. If anybody out there has some experience or concerns please comment. Regards

0404 package size

Electronics Forum | Fri Jun 02 19:42:40 EDT 2000 | Ravi Bhat

One of my customers has asked about concerns, comments, ideas about putting 0402 packages on bottom side of the board. The process will be no clean with reflow/reflow. If anybody out there has some experience or concerns please comment. Regards

Solder and flux

Electronics Forum | Thu Oct 24 15:02:16 EDT 2002 | seand

Hello Yannick, Have you brought this concern up with your supplier? I would recommend speaking with your flux and paste provider to gain additional insight and recommendations for resolving the concern. Good luck, Sean D.

IPC Conference Raises New Lead-free Reliability Concerns

Electronics Forum | Mon Apr 16 17:52:14 EDT 2007 | davef

Look here: http://smt.pennnet.com/display_article/289838/35/ARTCL/none/HMST/IPC-Conferences-Raises-New-Lead-free-Reliability-Concerns

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