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May 2004

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Subject:
From:
Franklin <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 25 May 2004 09:54:22 -0500
Content-Type:
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text/plain (226 lines)
I'll concede I missed something there, now help me out with this thought,
what do you believe the "processing" differences are between a Class II
product, and 55110 product?

Franklin


----- Original Message -----
From: "Blair K. Hogg" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, May 25, 2004 9:10 AM
Subject: Re: [TN] Visual Acuity


Franklin,

I think you missed Brian's point somewhat.

The easiest way to increase the cost of a product is to over-specify its
requirements.

Should the components of a portable radio be processed to the same standards
as those of military flight hardware? The portable radio will most likely
never see the environments that military flight hardware will see, although
I'll admit that a portable radio can see some pretty nasty environments,
e.g., sand, salt atmosphere (at the beach), vibration (bouncing around in
the back of a truck), etc. We would expect the portable radio to survive
these environments, but its failure would not be life-threatening. Do we
really want to build product that long outlasts its useful life?

I agree that we should always strive to make our products better, and less
costly if possible, but then we have to start to get into business
strategies and product placement in the market, etc.

Products should be specified correctly for their application and for the
customer's needs. Anything above that generally adds cost.

Blair



>>> [log in to unmask] 05/25/04 09:48AM >>>
Wow, that was off topic...but since a new one is started let me add this...

1. Specifications are here to stay, period.
2. They must be adhered to, period.
3. There are many ways of adhering to most specifications, many ways cost
more than others, most specifications can be met by applying different, more
cost effective methods than what is 'traditionaly' performed.
4. Instead of cutting back on 'meeting specifications' for non-military
product, why not develop cost effective processes so that military and
non-military product are processed in a similar manner at the lowest cost
possible. From my perspective, the only real difference between the military
and non-military product are the additional tests required, and those cost's
are typically passed on to the customer anyway.

Franklin




----- Original Message -----
From: "Brian Ellis" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, May 25, 2004 1:38 AM
Subject: Re: [TN] Visual Acuity


> Jack
>
> Interesting point, but an analogic argument can be applied to all those
> who apply rigid standards where they are not necessary. If a product,
> process or whatever does what it should do in an acceptable manner with
> appropriate aids provided by the employer, then that is good enough. I
> firmly believe that our industry is plagued by over-specification-itis.
> This is often engendered by ignorance; a responsible person has no idea
> what the ramifications of a process or product are so, instead of
> learning what it does, he covers his ignorance by applying
> specifications and standards, often irrelevant or far too severe, and
> costing his employers an arm and a leg in consequence. I see many, many
> examples of this in this forum, as well as visiting clients. In one
> company which consulted me, the product was a range of cards for use in
> ordinary PCs used in an office environment. I saved them ~40% of their
> production costs and thereby increased their overall gross profitability
> by ~10% simply by showing them that they did not have to build their
> products to ultra-reliable military standards -- but it was a hard
> battle convincing them.
>
> I suggest that every manufacturing entity should carefully examine their
> products and processes for over-specification-itis.
>
> Sorry to diverge off-topic.
>
> Brian
>
> Jack Crawford wrote:
> > Any related requirements have been or are being removed from IPC
> > standards. The correct assessment is whether an individual can do the
> > job they are required to do in an acceptable manner with appropriate
> > aids that may need to be provided by the employer. For broader
> > explanation, i.e. avoiding worker discrimination lawsuits, consult your
> > HR about the Americans with Disabilities Act.
> >
> > Jack Crawford
> > Director, Certification and Assembly Technology
> > [log in to unmask]
> > 847-790-5393
> > fax 847-504-2393
> >
> >
> > -----Original Message-----
> > From: Mary Jane Chism [mailto:[log in to unmask]]
> > Sent: Monday, May 24, 2004 2:37 PM
> > To: [log in to unmask]
> > Subject: [TN] Visual Acuity
> >
> >
> > Group,
> >
> > Is it mentioned anywhere in any of the IPC standards a visual acuity for
> > solder inspection?  Thanks.
> >
> > Mary Jane Chism
> >
> >
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