
.H 1 "RAM CHIP QUALIFICATION"

This is a first pass proposal for what should be done to qualify TI and
Hitachi as vendors for the 256K bit, 120 ns, nibble mode RAM's in the PCC
package.  Materials engineering will have primary responsibility for
the qualification and so they will be responsible for the final qualification
plan.  The plan needs to be in place by the first part of May.

The strategy should be to invest the minimum amount of resource that insures us
of meeting our reliability goals.  We should leverage as much testing and
testing resource as possible.

.H 2 "MTC"

We need to verify that MTC can or cannot do the qualification testing required.
We should leverage as much of there testing resource as possible.  If they
are to do the qualification they need to be responsive to our special needs.
Meeting the schedule is a high priority and so the test plan and qualification
requirements need to remain flexible to insure that the schedule is met.

We need to be willing to help MTC come up with qualification requirements
and testing needs.

Until we feel that MTC is committed to meeting our qualification needs it
will be assumed that they cannot meet them.  We will still leverage 
the testing that they can do.

.H 2 "Vendor Testing"

The vendors will do extensive qualification testing to insure that they
are shipping a quality part.  If we monitor this testing closely we should
not have to repeat most of it.  This requires that we receive copies of
of there qualification testing plans and that we evaluate the plan to
determine if it will insure that our requirements are met.  We should
work with our customer insurance people to help determine if it is a good test.

We also need to closely monitor the test results.  We should try to get copies
of all the failure reports to make sure that the failures are not caused by
wear out mechanisms that could become problems in the field.

.H 2 "Our Testing"

The majority of our testing should be done with Firefox systems.  It has
not been determined if any controlled tests need to be conducted to insure
that the RAM chips are at an acceptable quality level.  The testing done
to the rest of the system may be adequate.

We should have some RAM chips evaluated by our reliability physics lab.
They can often find potential process and design problems.

