Hi Steve,
During the normal work our touch-up people and inspectors don't take (or get) the time to delve through the IPC-books, so it's all to easy to just take over the existing culture of making the boards as smooth and shiny as possible.
After an IPC-A-610 training class these people for the first time realized that a significant part of their touch-up was on solderjoints that were already perfectly acceptable before the touch-up.
It's a beginning......
Kind regards,
Daan Terstegge
Unclassified mail
>>> "Stephen R. Gregory" <[log in to unmask]> 02/08 3:04 am >>>
Hi ya'll!
I know this is going to be question with no easy answers. What I want to ask
is how do you go about evaluating the real effort that is being expended on
rework or touch-up? Then prove what was necessary, and what wasn't?
To set the stage, the process is mainly "gate-inspection" (I know that's not
desirable) but that's what it is. Past history has been to meet standards
that match a picture (Martin Marrietta comes to mind). Not whether or not
touch-up or rework is adding any reliability or value to the finished
product, or is just make it look like the pictures. (reading between the
lines;..that quality mindset is THOROUGHLY ingrained here)
So how do you getting a good un-biased snap-shot of what is actually going on
out on the floor, and then go about changing things?
I believe that there is no simple way. It's going to take a lot of time and
effort to take assemblies that are in process, identify them by way of a
serial number or some other means, have a referee (knowledgeable unbiased
person) inspect them after each major process to determine what (if any)
defects are on each assembly, then let them continue on through the process
with the instructions that any rework or touch-up performed on the assemblies
must be documented as accurately and completely as possible as to what
defects were observed, where, and why they were reworked. Then afterwords, an
assessment done on the whole quality process.
As you may guess, there is some thought going around that we rework more
things than we need to. I'm just trying to find a way that will be the most
effective, and that will be as unbiased as possible. Also as you may guess,
this subject can get pretty emotional with the QA folks...I butt heads every
single day. I want to find a way that nobody can argue with.
Yes, It does still seem a little silly that I need to secretly strategize a
plan to bring out the realities of the situation in order to convince certain
people to change their philosophies. But I have been asked to do it, and I
got the the task because they think that I have a magic solution to change
certain mind-sets, but I don't. I'm asking if any of ya'll have had to go
through a situation such as this, and what you did to resolve the obvious
issues...
Thanks everybody!
-Steve Gregory-
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