Image sensor having light distributing element

US9214487B2 · kind B2 · utility

Assignee

• Novatek Microelectronics Corp. · TW

Inventors

• I-Hsiu Chen · Taipei, TW
• Shu-Fang Wang · Hsinchu, TW
• Po-Jen Hsiao · New Taipei, TW

Key dates

• Filing date: Dec 3, 2013
• Grant date: Dec 15, 2015
• Expiry date: Apr 25, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F39/8063

Abstract

An image sensor including a plurality of sensing pixels, a plurality of micro-lenses disposed on the sensing pixels and a plurality of first light distributing elements disposed between the sensing pixels and the micro-lenses is provided. Each of the first light distributing elements includes a first refractive index pattern and a second refractive index pattern surrounding the first refractive index pattern. The refractive index of the first refractive index pattern is larger than the refractive index of the second refractive index pattern.