Patent ID: 7655999
Filing Date: 2010-02-02
Classification: H01L,Y02E

Abstract:
1. A photodiode comprising: a substrate with at least a first side and a second side; a first region having four doped regions therein; a second region having four doped regions therein; a void in said substrate, wherein said void separates the first region and the second region, wherein said void extends substantially from said second side to said first side, wherein said void has sides, wherein said sides are inclined, have a length extending from a first end to a second end, and physically connect at a point proximate to the first side, and wherein one of said inclined sides is part of said first region and one of said inclined sides is part of said second region; wherein said four doped regions of said first region comprises a first doped region of a first conductivity type proximate to the second side, a second doped region of a first conductivity type proximate to the inclined side and extending from the first end to the second end, a third doped region of a second conductivity type proximate to said second side, and a fourth doped region of a second conductivity type proximate to said first side; and wherein said four doped regions of said second region comprises a first doped region of a first conductivity type proximate to the second side, a second doped region of a first conductivity type proximate to the inclined side and extending from the first end to the second end, a third doped region of a second conductivity type proximate to said second side, and a fourth doped region of a second conductivity type proximate to said first side.