SMD component placement cost (was CD4000 Series device with high output drive)

From: Winfield Hill (Winfield_member_at_newsguy.com)
Date: 06/14/04 

Date: 14 Jun 2004 09:25:30 -0700

Klaus Vestergaard Kragelund wrote...
>
> Winfield Hill wrote ...
>> Klaus Kragelund wrote...
>>>
>>> ... we have a figure for the cost of production that
>>> adds about 1.6 cent per placed SMD component.
>>
>> I assume that's the *incremental* cost, not simply obtained
>> by dividing the total assy cost by the number of parts, but
>> obtained from the difference in cost if parts are added?
>> Can you tell us what quantity is in each production run?
>
> That should be an incremental cost figure, but I have discussed
> some with the production engineer responsible for that figure.
> A 44 pin microcontroller costs the same as a 0603 SMD cap. to
> place and that does not correspond to the real world. But anyhow
> - as a mean for the SMDs it should be correct to a certain extent

 Presumably much of the cost is in inventory pulling, machine
 setup, teardown, restocking reels, cleanup, paperwork, etc.
 These are relatively fixed costs, so the length of the run must
 be a big factor. What's the quantity for your numbers? Roughly
 how long does a run of that size take after pressing START?

 Thanks,
    - Win

 (email: use hill_at_rowland-dot-org for now)

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