The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2023
Filed:
Jan. 30, 2020
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Brian Patrick McGarvey, Templemartin, IE;
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US);
Abstract
An imaging device may include single-photon avalanche diodes (SPADs). The single-photon avalanche diodes may be arranged in an array of microcells (such as a silicon photomultiplier). Each microcell may have an aspect ratio that is greater than 1. Each microcell may be covered by a microlens that also has an aspect ratio that is greater than 1. The microlens may have curvature in a first direction (parallel to the width of the microcell/microlens) and less curvature in a second direction that is orthogonal to the first direction (parallel to the length of the microcell/microlens). Forming non-square, rectangular microcells and microlenses in this fashion may allow for larger microcells that still have satisfactory microlens performance.