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Lightning_Rod

09/25/23 5:45 PM

#159565 RE: tedpeele #159557

TP said:

I know you have reached your end on this, so don't bother responding.



Nope. I haven't reached the end of this. YOU HAVE and you know it. That is why you say "Don't respond" . That is because you know nothing about yields and don't what to wander into this quagmire.

I wrote this awhile back:

Foundries keep all of their inside secrets to themselves since it is a highly competitive business especially the yields achieved on new products coming out. Millions of dollars are at risk competitively.

Foundries also demand that this information from potential clients be kept secret as well ergo the reason Lightwave CANNOT give out who they are working with and what advances have been achieved.



And I supplied this quote which you ignored from the Informit:

The ratio of good chips to bad chips is called the yield and it's never 100 percent. . Chip companies very closely guard their actual yield numbers the way poker players guard their cards and for the same reason: They don't want to give competitors any inside information. Anything less than 100 percent yield is embarrassing, but every company knows that goal is impossible. Yields of 85 percent to about 97 percent are typical for midrange and high-end ICs. Simple chips will enjoy higher yields, whereas new or complex chips will have embarrassingly low yields.



https://www.informit.com/articles/article.aspx?p=31338&seqNum=4

You can run TP but you cannot hide.

Lebby indicated on a presentation that they were getting back "extremely high yields on > 1000 poled devices". this is the 97 % end of the range.
The answer to why they cannot give away the yields is because the foundries will not allow it as indicated by the quote from the article above.

You have no excuses.

L_R
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Lightning_Rod

09/25/23 6:08 PM

#159568 RE: tedpeele #159557

There are many kinds of yield



Do you mean crop yields, stop sign and yield signs, you are under arrest. YIELD!

This shows that you are completely stupid on the topic of foundry yields.

This is about the finished chip yields you idiot which includes the finished poling.

What a dork.

L_R