Patent ID: 9543472
Date: 2017-01-10
CPC Classifications: H01L,Y02E,Y02P

Claim:
1. A method comprising: forming a dielectric layer on a first substrate, the first substrate comprising a first crystalline semiconductor material, a first opening and a second opening each being through the dielectric layer and exposing the first crystalline semiconductor material; forming a first bottom diode region by growing a first portion of a second crystalline semiconductor material in and extending out of the first opening; forming a second bottom diode region by growing a second portion of a second crystalline semiconductor material in and extending out of the second opening; forming a first active diode region on the first bottom diode region, and a second active diode region on the second bottom diode region, the first active diode region being physically separated from the second active diode region; forming a continuous top diode region on the first active diode region and the second active diode region; bonding a second substrate to the continuous top diode region; removing the first substrate; forming a first contact on the second substrate; and forming a second contact on the dielectric layer and the second crystalline semiconductor material.