White light from LED Message Board

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Technology Stocks : White light from LED

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To: sbaker23 who wrote (450)	10/19/2001 7:36:20 AM
From: John Finley	of 565

Re: Aluminum Nitride barrier layer for GaN Looking at patent 5,393,993 it reminded me of an Agilent white paper I read recently: ftp.agilent.com Agilent uses AlN as the piezoelectric in their FBAR resonators (at least so they say <g>). Since it also appears to be compatible with GaN I wonder if there is any call for vibrating light emitters? I wonder if the lattice constant shift in the AlN could result in a frequency shift in an "attached" GaN LED (laser)? JF

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