公开(公告)号：US20200328247A1

公开(公告)日：2020-10-15

申请号：US16776907

申请日：2020-01-30

Applicant: HRL Laboratories, LLC

Inventor： Minh B. NGUYEN ,  Brett Z. NOSHO

IPC: H01L27/146 ,  H01L27/02

Abstract: A simultaneous dual-band image sensor having a plurality of pixels includes a substrate, a common ground on the substrate, wherein each pixel includes a Band 1 absorber layer on the common ground layer, a barrier layer on the Band 1 absorber layer, a Band 2 absorber layer on the barrier layer, a ring opening in the pixel formed by a removed portion of the Band 2 absorber layer, a removed portion of the barrier layer and a removed portion of the Band 1 absorber layer, wherein the ring opening does not extend through the Band 1 absorber layer, a first contact on a portion of the Band 2 absorber layer inside the ring, and a second contact on a portion of the Band 2 absorber layer outside the ring. The Band 1 absorber layer and the Band 2 absorber layer are n-type, or the Band 1 absorber layer and the Band 2 absorber layer are p-type.

公开(公告)号：US20220149107A1

公开(公告)日：2022-05-12

申请号：US17583098

申请日：2022-01-24

Applicant: HRL Laboratories, LLC

Inventor： Minh B. NGUYEN ,  Brett Z. NOSHO

IPC: H01L27/146 ,  H01L27/02

Abstract: A simultaneous dual-band image sensor having a plurality of pixels includes a substrate, a common ground on the substrate, wherein each pixel includes a Band 1 absorber layer on the common ground layer, a barrier layer on the Band 1 absorber layer, a Band 2 absorber layer on the barrier layer, a ring opening in the pixel formed by a removed portion of the Band 2 absorber layer, a removed portion of the barrier layer and a removed portion of the Band 1 absorber layer, wherein the ring opening does not extend through the Band 1 absorber layer, a first contact on a portion of the Band 2 absorber layer inside the ring, and a second contact on a portion of the Band 2 absorber layer outside the ring. The Band 1 absorber layer and the Band 2 absorber layer are n-type, or the Band 1 absorber layer and the Band 2 absorber layer are p-type.