Interesting viewpoints, see reply below.
Regards
__________________________________________________
David W. Bergman, V.P. of Technical Programs
IPC
2215 Sanders Road
Northbrook, IL 60062-6135
847-509-9700 x340 Phone
847-509-9798 Fax
email [log in to unmask]
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On Wed, 22 Jan 1997, George Franck Jr wrote:
> Dan,
>
> You bring up a good question! Does IPC have an offical position on the
> continued use of IPC-RB-276?
If it still works for you and your customer, go for it. There is nothing
wrong with working to old spex as long as they serve you well.
>
> I guess I don't understand what obsolete means. Does it mean that IPC
> no longer prints and sells it? Does it mean that IPC can sue me and
> make me take any reference to IPC-RB-276 off my drawing documents? If I
> call out IPC-6011/2 today, how long until those busy bee's at IPC make
> it "obsolete" ?
1. Obsolete or more appropriate superseded means the technical volunteers of
IPC have completed their efforts to update the technical requirements in
the document. When we release new revisions, we generally stop printing
and selling previous revisions. We have at the insistant request of
customers made photocopies of old revisions, but this is infrequent.
2. I could only sue if you poured hot coffee in our laps ;-). Sorry,
couldn't resist, must be the Steve Gregory/Jerry Cupples in me.
Seriously, if 276 serves you on your drawings, so be it.
3. Yes as one of IPC's official beekeepers, 6011 and 6012 will be revised
in the next 2 years. Maybe your concern is more that the number changed
as opposed to that the specification had been revised. The volunteers put a
lot of effort into trying to keep specifications up to date with rapidly
changing technology and acceptance criteria. Some complain that we don't
do it fast enough.
>
> Basically, I do not give the IPC the authority to dictate what specs I
> can and can not use in my drawings. I consider them private
> communications between my company and my suppliers. (I may be dead
> wrong.)
I absolutely agree with you. We are not dictators.
I feel free to use whatever method of communications works
> best. If I call out Mil-P-28809A, who really cares that it has been
> cancelled? If I call it out in a contract, can't I still used it in a
> court of law if a supplier is nonconforming?
>
> Now, If the customer wants our drawing package to meet certain criteria,
> ie all references be current at the time of release, then yes, we will
> have to call out the IPC-6011/2. So yes, if the customers drawing
> specification tells me I can't use IPC-RB-276, I would gladly comply,
> and with a smile. But then I would also check to see that the customers
> drawing spec has not been cancelled! (Rumor has it that one of the
> drawing specs is/was/will be cancelled ... DOD-STD-100 ???)
>
I like it when you smile. Seriously, I think you have the situation
pretty well in hand. Talk to customer, agree what is necessary, then do
what is necessary.
> Again this is my opinion, I do not even know for sure what the company
> policy is, except to give the customer what they want. How do others
> deal with the shifting sands of calling out requirements?
>
I hope others will share their experiences. I do know some companies are
having success with block changes for military contracts, which allow
rapid conversion of multiple contracts to a single set of specification.
Good Luck
Dave Bergman
>
> George Franck
> Raytheon E-Systems
> Falls Church Va
> [Insert Legal Disclaimer, ad nauseum...]
>
> PS My modem is 14.4. I was going to upgrade until my son asked what was
> out there on the web which I needed to get 3 time faster. After a short
> discussion, we bought a mind numbing, stupid game, and I saved well over
> $50. We sit playing this game for hours, and don't use the modem very
> much. We are both very happy, however we have each lost at least 15 IQ
> points.
>
> On Jan 22, 6:48am, Dan Lorinser wrote:
> > Subject: Re: IPC-RB-276 is OBSOLETE! -Reply
> > George,
> > Question...should I callout a obsolete spec on a class A released
> > drawing? Can I? I bought a 9600 modem a few years back, works fine,
> > but I did upgrade it to a 33.6!
> >
> > >>> George Franck Jr <[log in to unmask]> Jan 21, 1997
> > 5:57 pm >>>
> > Dan,
> > I own a HP235 Calculator which I bought for $235 in 1974. It is
> obsolete.
> > However, it also still works, and gives reliable results.
> >
> > As to IPC-RB-276, I understand it, my suppliers (usually) understand
> it,
> > my designers understand it, my electrical engineers almost understand
> > it, and my inspectors understand it. The Spec works and the boards
> are
> > reliable.
> >
> > Yes, I will eventually convert to the IPC-6011/2. I will also replace
> my
> > 1984 Pontiac someday. However, I am keeping my HP, RPN and all.
> >
> > Gak! I must be some kind of an old engineering Geek! (Did I tell you
> about
> > the time we first swaged wire through phenolic boards for thru-hole
> > connections? I should have gotten a patent.)
> >
> > Any way, my point is, things that work get replaced less quickly than
> > things that do not.
> >
> > Thanks for your thoughts
> > George Franck
> >
> > Legal Disclaimer:
> > My company, showing good sense, disavows anything I say.
> >
> >
> > On Jan 21, 12:42pm, Dan Lorinser wrote:
> > > Subject: FAB: CU/Invar/Cu suppliers -Reply
> > > Remember...IPC-RB-276 is OBSOLETE! IPC-6011 and IPC-6012 are the
> > > bad boys now unless your vendor isn't up to the new ones yet.
> > > Dan Lorinser
> > > BFGoodrich Aerospace
>
> --
>
> George Franck Jr
> Raytheon E-Systems
> Falls Church Va.
>
> "The opinions expressed are those of the author, and are not necessarily those of the Raytheon Corporation."
>
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