Goto library, and learn how to access to these IEEE/ACM papers.

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And if PowerPC isn't used in same prcoess for core and cache, then I think more photo-masks will result in cost-increasing. Or they use another tech to package two die? Need your further comments, Thanks.

Note that Power and PowerPC are NOT the same line of processors. Power 4's L3 cache brief can be seem at
http://www-1.ibm.com/servers/eserve...s/power4_4.html

they mount the L3 data arraies on a MCM as the core chip. Examples of MCMs are pentium pro, mobile S3 savage4s, the new geforce 2 go.

Also the main increased cost of using MCM is not the increased mask cost, but rather the yield.