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Re: [BP] SDD21 Mask

Title:
Zhi,
As discussed, that would be considered a fail.

I have been exploring the fail remedies on these particular test cards and hope to eliminate them on this next pass.

But yes, if good design practise is not used by the systems designer, the channel may not pass with lower grade improved fr-4.

-joel

Zhi Wong wrote:

Joel,

 

In Goergen_02_0704, page 26, do you consider Channel 16 a “pass” or “fail”?

 

There are several nulls that violate the proposed SDD21 mask.

 

If someone does a bad design, with some stubs, the channel data would always look like the Channel 16 on page 26.

 

Zhi