CIP Lives on!
(Continuous Improvement Program)
Once a product reaches maturity, an OEM typically allocates it’s
limited engineering resources towards the next generation of product. This is
where CIP cycle usually ends, leaving the aftermarket to pick up where factory
support leaves off. Long term reliability issues are rare at this point in the
life cycle, especially with Novellus products. But some do exist and
improvements can be made, given the proper effort. Customer needs can also
change.
My 20+ years experience supporting the field has taught me that
changing a field proven component, is only done out of necessity. For this
reason we use OEM specified components, unless it is just not possible due to
obsolescence, an improved version of the same part exists, or a long term
reliability issue needs to be resolved.
Reasons for qualifying a new part:
- Obsolete part, no longer
available
- CIP
1.
Improved version of same part (Example: shielded
bearings)
- To correct
a long term reliability issue. Example: rotation drive, spindle shaft)
The rotation drive spindle shaft illustrates a long term reliability
issue that can be safely solved through redesign and extensive testing. More info?
Anytime it is necessary to qualify a new part, research and
matching or exceeding OEM specifications is critical, even more important is
the testing that follows. The test strategy must include functional testing and
exercising the part or assembly for extended periods of time. Simulating the
process tool environment as accurately as possible.