Electronics Forum | Wed Apr 13 21:47:32 EDT 2005 | Dhanish
In production,we are seeing high defect for Hair Line Solder Shorts for PTH connector and the Hair Line is too tiny that X-Ray and ICT could not detect.Any suggestion on how we can resolve or at least detect this upfront.
Electronics Forum | Wed Aug 29 20:07:40 EDT 2012 | guyramsey
If hair were not charged (and discharged) through the body, please explain the reason for hair standing on end when one places ones hand on an ES source. What is your control level?
Electronics Forum | Wed Aug 29 23:38:50 EDT 2012 | isd_jwendell
I would worry more about a hair falling out and getting into the process. Longer hairs effect more parts/area.
Electronics Forum | Thu Aug 30 16:03:23 EDT 2012 | davef
So, someone walks into the work area from outside [or where ever]. Presumably, there is a measurable charge on their hair. After they sit at his / her work station and strapup, is there still a charge on their hair? ... I don't know, but it wouldn't
Electronics Forum | Thu Aug 30 13:26:40 EDT 2012 | joeherz
Appreciate all the replies. We have a good system in place with ESD tile floor, grounded systems/benches/etc and heel and wrist strap usage and monitoring. Good training program as well. We've recently upgraded to the 2007 version of the ANSI 20.2
Electronics Forum | Sat Sep 01 20:39:30 EDT 2012 | rway
My statement about clothing was to make a point regarding hair. If you consider hair as holding a charge, than you must regard clothing in the same light. I'm not sure what your point is regarding cotton clothing in assembly. I would guess wearing
Electronics Forum | Wed Dec 12 10:27:23 EST 2001 | genny
Yeah, we do have wrist straps, heel straps, ESD wax, and grounded ESD mats on all work benches. One guy with long fly-away hair was actually told to wear his hair pinned back as well - so started to wear a ball cap... Genny.
Electronics Forum | Fri Apr 15 09:10:09 EDT 2005 | Dhanish
The biggest problem I am having is the X-Ray and ICT could not detect this shorts.ICT could not detect because onboard measurement shows Zero even without the Hair line shorts.With Hairline there is no difference in the impedance value for ICT to fai
Electronics Forum | Wed Aug 29 15:51:17 EDT 2012 | joeherz
There is a battle brewing over a new policy with long hair and ESD protection in our facility. I'm not finding a lot of evidence to support the position. Any info you all can provide on the subject would be appreciated. Studies on the subject supp
Electronics Forum | Thu Aug 30 16:18:38 EDT 2012 | rway
Presumably, I would think not, if they are strapped up. The charge in their hair should dissipate. If not, you could make the same argument for one's clothing, couldn't you?
