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Qualcomm engages other foundries amid 28-nm capacity shortage

4/18/2012 10:05 PM EDT
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PV-Geek
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re: Qualcomm engages other foundries amid 28-nm capacity shortage
PV-Geek   4/20/2012 1:04:06 AM
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There is rarely acknowledged connection between yield and capacity in the sense that in many cases the most direct way to fix a yield problem is to restrict certain processes to go through a limited subset of available equipment. I know that we resorted to this technique many times in my past doing yield enhancement. By artificially constraining the toolset or dedicating specific pairings of tools, you get less variability in the mfg parameters and get more predictable yield. You hide the yield problem in a capacity problem.

Steve_Chang
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re: Qualcomm engages other foundries amid 28-nm capacity shortage
Steve_Chang   4/20/2012 3:22:35 AM
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I heard the rumor that the current yield rate of 28nm @TSMC for QCOM is approx. 30~50%.... Is it really true? What would be the standard yield for this process?

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