Patent ID: 8097852
Filing Date: 2012-01-17
Classification: G01S,Y10T

Abstract:
1. A method of making an optical proximity sensor, comprising: mounting an infrared light emitter atop a first portion of a substrate; mounting an infrared light detector, an ambient light detector, and an integrated circuit atop a second portion of the substrate; in a first molding step, molding an infrared light pass component over the infrared light emitter, the infrared light detector, the ambient light detector, the integrated circuit, and portions of the substrate; curing the infrared light pass component to form a single molded volume in contact with the infrared light emitter, the infrared light detector, the ambient light detector, the integrated circuit, and portions of the substrate; forming a slot in the single molded volume of cured infrared light pass component between the first and second portions of the substrate; and in a second molding step after the first step and after the slot has been formed, molding an infrared light cut component over the slot and the integrated circuit, and over portions of the infrared light emitter, the ambient light detector, and the infrared light detector such that first, second and third apertures are formed over the infrared light emitter, the ambient light detector, and the infrared light detector, respectively; and such that the infrared light cut component fills the slot.