Patent ID: 6107641
Filing Date: 2000-08-22
Classification: H01L,Y10S

Abstract:
A semiconductor structure comprising:a gate region, formed in a first plane, having first gate edge lying in a first edge plane and a second gate edge lying in a second edge plane, each said first and second edge planes being generally perpendicular to said first plane;a source region having a first source edge lying approximately in said first edge plane;a drain region having a first drain edge lying approximately in said second edge plane;an optical filter island located between said source and drain regions, said optical filter island comprising at least three layers including a first layer having a first index of refraction, a second layer having a second index of refraction, and a third layer adjacent to said second layer, the third layer having approximately the first index of refraction, the second index of refraction different from the first index of refraction, the layers arranged such that the optical filter island is reflective of a first radiation wavelength and transmissive of a second radiation wavelength.