Patent ID: 6204088
Filing Date: 2001-03-20
Classification: H01L

Abstract:
A method for fabricating a backside contacted photodiode detector assembly from a first substrate, said assembly for operation at a desired waveband, said first substrate having a first surface and a second surface, said method comprising the steps of:A. depositing a pattern of coldweldable metal on said first surface of said first substrate, said pattern having at least one hole, thereby exposing said first surface of said first substrate at said at least one hole, wherein said coldweldable metal is substantially opaque at said desired waveband;B. coldwelding a second substrate to said pattern of coldweldable metal, wherein said second substrate is substantially transmissive at said desired waveband; andC. forming detector elements substantially on said second surface of said first substrate at positions substantially opposite said at least one hole in said pattern of coldweldable metal.