Light sensor device and manufacturing method

US9386655B2 · kind B2 · utility

Assignee

• NXP B.V. · NL

Inventors

• Viet Nguyen Hoang · Leuven, BE
• Radu Surdeanu · Roosbeek, BE
• Pascal Bancken · Opwijk, BE
• Benoit Bataillou · Evergem, BE
• David Van Steenwinckel · Holsbeek, BE

Key dates

• Filing date: May 21, 2009
• Grant date: Jul 5, 2016
• Expiry date: Mar 18, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J2001/4247
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A light sensor device comprises a substrate (10) having a well (12) defined in one surface. At least one light sensor (14) is formed at the base of the well (12), and an optical light guide (18) in the form of a transparent tunnel (18) within an opaque body (20) extends from a top surface of the device down a sloped side wall of the well (12) to the location of the light sensor (14).