Patent ID: 6441542
Filing Date: 2002-08-27
Classification: H01J

Abstract:
A cathode emitter device, comprising:an infrared receptor encompassing a first material, the first material including an n-type doped region overlying a p-type doped region; the n-type and p-type doped regions of the receptor joining at a junction diode; an array of cathode emitter tips in electrical connection with the n-type region of the infrared receptor; and a second material electrically between the first material and the emitter tips; the second material comprising an n-type doped region and a p-type doped region; the n-type doped region of the second material physically contacting the n-type doped region of the first material and the p-type doped region of the second material physically contacting the p-type doped region of the first material; the second material being silicon.