Electronics Forum: reworks allowed (Page 1 of 18)

Soldering Specification Needed

Electronics Forum | Tue Sep 27 12:02:26 EDT 2011 | spitkis2

Is it correct that there is nothing direct in Class III documentation that states these boards should not be reworked? Whether these boards are allowed to be reworked is strictly a decision / agreement between assembler and customer . . . correct?

Soldering Specification Needed

Electronics Forum | Tue Sep 27 14:54:20 EDT 2011 | scottp

That's correct - IPC-610 doesn't tell you whether rework is allowed or not. That's a customer issue.

How to Differentiate Class 3 and Class 2 products in terms of process

Electronics Forum | Tue Jan 06 06:56:26 EST 2015 | stivais

How about rework (touch-up) for Class 3? Some say that you are not allowed to rework anything for Class 3. Though I have not found any proof for this 'requirement' in the standards.

Maximum Rework per Board

Electronics Forum | Mon Feb 03 12:52:42 EST 2003 | MA/NY DDave

Hi I won't give you an answer directly yet I hope the following makes sense. The max rework depends on what is used in the reliability model and/or experimental data as worst case for the applications end of life reliability needs. E.G. let's say

BGA rework clearance

Electronics Forum | Tue Apr 23 14:30:35 EDT 2019 | scotceltic

I would like to setup a guideline for BGA to components around it minimum distance. To allow for rework possibilities of the BGA. What are people using as a minimum clearance out there ?

Scrap criteria

Electronics Forum | Tue Sep 20 10:32:25 EDT 2005 | slthomas

I would say it depends on the process requirements for the board and the reliability requirements as has already been mentioned. If you do two-sided reflow you might allow for fewer rework attempts, for example. If it's a medical device you might on

Re: Reliability of Reworked Pads/Traces?

Electronics Forum | Tue Mar 21 20:30:48 EST 2000 | Dave F

Marc: Experimental evidence is rare. Published reports are rarer. I can�t comment on the impact of rework on your RF boards. I can tell you that: � HF is pretty LF these days. � We allow three rework actions on each aboard. � IPC-7721 is a fine s

Rework and repair system suggestions

Electronics Forum | Thu Jan 27 11:45:04 EST 2005 | Mark

Based on the components mentioned, it sounds like you need a soldering station rather than a bga rework station. The equipment mentioned would allow you to rework fine pitch QFPs and BGAs. Reworking an sot-23 using one of those systems is inefficie

Unusual solderability issue

Electronics Forum | Thu Oct 28 15:53:27 EDT 2010 | dwonch

Ok, just to put closure on things I figured I should post the conclusion of this whole ordeal. We've acquired a new BGA rework station that allows us to get away without tenting our vias under the BGAs. This allowed us to change our PCB spec to rem

BGA Clearance

Electronics Forum | Fri May 18 11:58:47 EDT 2007 | ed_faranda

We're starting to get into BGAs at my company. I have worked with BGA with another company, but that was nearly 10 years ago now. One thing I haven't found is the required clearance around BGA components. Is there a standard for this distance? Wha

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