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Technology Stocks : Wolf speed
WOLF 17.40+1.7%Dec 31 3:59 PM EST
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To: FLSTF97 who wrote (1350)12/10/1999 12:49:00 PM
From: Pete Mimmack  Read Replies (2) of 10714
 
Long ago, in a school room far, far away ....

We learned that Area = Pi(r*r).

So increasing from 2 to 3 inch wafers increases the area from 4 to 9 (times Pi, of course). 9/4 = 2.25, so each wafer is 2.25 times as big, or 125% more than the 2" wafer, which is what the article says: "A 3-inch wafer yields about 125 percent more LEDs."

Pete
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