Photo-current amplification apparatus
AssigneeArtilux, Inc.
InventorsYun-Chung Na, Yen-Cheng Lu
Life of this patent
Estimating the term…
Abstract
A photo-current amplification apparatus is provided. The photo-current amplification apparatus includes a photo-detecting device including: a substrate; an absorption region comprising germanium, the absorption region supported by the substrate and configured to receive an optical signal and to generate a first electrical signal based on the optical signal; an emitter contact region of a conductivity type; and a collector contact region of the conductivity type, wherein at least one of the emitter contact region or the collector contact region is formed outside the absorption region, and wherein a second electrical signal collected by the collector contact region is greater than the first electrical signal generated by the absorption region.
Claims12
A photo-current amplification apparatus, comprising:
- a photo-detecting device, comprising:
- a substrate comprising silicon;
- an absorption region comprising germanium, the absorption region supported by the substrate, wherein the absorption region comprises a p-doped absorption region configured to receive an optical signal and to generate a first electrical signal based on the optical signal;
- an emitter contact region formed in the absorption region;
- a collector contact region outside of the absorption region, wherein the collector contact region is n-doped;
- and
- a base region formed in the absorption region, wherein the base region is p-doped having a peak doping concentration higher than that of the p-doped absorption region,
- wherein a second electrical signal collected by the collector contact region is greater than the first electrical signal generated by the absorption region.
Dependencies are inferred from the claim text.