IMAGE SENSOR

To provide an image sensor that uniforms an energy received by a photodiode.SOLUTION: An image sensor includes four first pixel allays 100. Each of the first pixel allays includes a plurality of photodiodes 122 and a polyhedral structure 110. The polyhedral structure is positioned on each photodiode...

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Main Authors CHANG YUI, WANG PO-HSIANG, KUO HSIN-HUNG, WU CHINGIANG, TU ZONG-RU
Format Patent
LanguageEnglish
Japanese
Published 26.05.2023
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SEMICONDUCTOR DEVICES
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Summary:To provide an image sensor that uniforms an energy received by a photodiode.SOLUTION: An image sensor includes four first pixel allays 100. Each of the first pixel allays includes a plurality of photodiodes 122 and a polyhedral structure 110. The polyhedral structure is positioned on each photodiode, and includes: a bottom surface facet 112; a top surface facet 114; and at least one side surface facet 116. The bottom surface facet is positioned between the side surface facet and the photodiode, and an orthogonal projection of the polyhedral structure is overlapped with each photodiode. The polyhedral structure is constituted so as to divide incident light into a plurality of optical beams collected to the photodiode.SELECTED DRAWING: Figure 2 【課題】フォトダイオードが受け取るエネルギーを均一にするイメージセンサを提供する。【解決手段】イメージセンサは、４つの第一の画素アレイ１００を含む。第一の画素アレイは、複数のフォトダイオード１２２と、多面体構造１１０と、を含む。多面体構造は、フォトダイオードの上に位置し、底面ファセット１１２、頂面ファセット１１４及び少なくとも１つの側面ファセット１１６を含む。底面ファセットは、側面ファセットとフォトダイオードとの間に位置し、多面体構造の直交投影は、フォトダイオードと重なっている。多面体構造は、入射光をフォトダイオードに集光された複数の光ビームに分割するように構成されている。【選択図】図２
Bibliography:Application Number: JP20220130774