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. 28, 2024
Filed:
Aug. 20, 2021
Kabushiki Kaisha Toshiba, Tokyo, JP;
Kazuaki Okamoto, Yokohama Kanagawa, JP;
Honam Kwon, Kawasaki Kanagawa, JP;
Mariko Shimizu, Setagaya Tokyo, JP;
Kazuhiro Suzuki, Meguro Tokyo, JP;
Keita Sasaki, Yokohama Kanagawa, JP;
Ikuo Fujiwara, Yokohama Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a light detector includes a plurality of elements. Each of the elements includes a first semiconductor region, a second semiconductor region, and a third semiconductor region. The second semiconductor region is located on the first semiconductor region and has a higher first-conductivity-type impurity concentration than the first semiconductor region. The third semiconductor region is located on the second semiconductor region. The elements are arranged at a first period in a second direction crossing a first direction. The first direction is from the first semiconductor region toward the second semiconductor region. A quenching part is electrically connected with the third semiconductor region. Multiple lenses are located respectively on the elements. One of the lenses is positioned on one of the elements. A refracting layer is located between the elements and the lenses. The refracting layer has a first thickness.