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Politics : Formerly About Advanced Micro Devices

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To: Maxwell who wrote (31707)	4/11/1998 10:45:00 AM
From: Yousef	Read Replies (2) of 1573685

Maxwell, Re: "The specs you gave me for the 0.18um looks pretty old technology to me. You will have difficulties getting into the Gigahertz range." No, the specs I gave you will give very high drive currents at low operating voltages ... BTW, you didn't even ask the most important question. "What is the supply voltage and target Idsat". It seems that Bert's take home test from SOF was made up a number of years ago. <ggg> Re: "#4) No need to go to low-K. I can tell you now that your R will dominate your C. C doesn't really come in till you pass the Gigahertz limit, especially at least 2GHz." This is absolutely WRONG ... A FET and backend interconnect can be simply modeled as a voltage variable current source with a series Resistance and parallel Capacitance ... simple RC circuit driven by a current source. In this circuit, Cpacitance is what determines how high the frequency can go. This assumption is valid as long as the FET does not become de-biased (Vd stays > Vdsat). I HAVE been able to hit the gigahertz range with these specs. Make It So, Yousef

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