I don't think any of this was thought out as an industry standard.
Everybody gets to make their decision based upon what works for them or
who yells the loudest.
If things were standardized, there would be one document format, one
spreadsheet format, one graphic format and my favorite there would be
one credit card swipe machines at all stores with the buttons all in the
same place.
Phil
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of Genny Gibbard
Sent: Monday, May 30, 2005 3:12 PM
To: [log in to unmask]
Subject: [LF] PN's changing
All right, I am in a big internal fight in my company. I thought we had
achieved consensus on changing PN's and had even come up with a format
to do
it. As soon as we started to try to implement it, however, two big
issues
came up.
1. The format we chose didn't work with the pick and place equipment (
we
have a small internal line for some of our SMT needs. The rest is sent
out)
2. When asking for input on alternative preferred formats, R&D
department
rose up and started to fight for no change at all.
The issues are:
a) Apparently the CAD layout database of parts has been stored by PN.
Which
means that they will need to copy and rename pretty much the whole
database.
(I won't say what I think of that 'brilliant' idea, or whoever thought
of
it...whatever happened to naming the database parts by their package
type???)
b) Our MRP parts database will have to increase by 50-75% in size,
making it
more unwieldy.
c) The MRP database entry could take up to 15 weeks of straight
keyboarding,
by those that currently maintain it - and that is just straight typing,
no
doing any of the other jobs they normally are responsible for...
d) The new PN standard will be stuck to the part forever, even once Pb
free
is the norm. We will still have to keep sticking our "F" on the end of
every new part we make forever and ever,...
One of the suggestions is that we keep the existing PN's for Pb free,
and
make new PN's for items that will stay "leaded". My argument is that it
is
totally backward from industry standard, and then we will have to
constantly
keep educating our suppliers in "our way" of doing things. The response
was
that they didn't think there was an industry standard FOR changing PN's,
because they could rattle off several co.'s that are not. Since caps
and
resistors make up a huge part of our database, and we can find examples
for
almost all of them that did not change PN's...
Anyone have any additional resources, papers, arguments to help fight
for
changing PN's?
I have been looking at the NEDA paper, and the iNEMI position.
Or should I just give up and allow whoever screams the loudest in the
co. to
win...?
Genny
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