METHOD FOR MANUFACTURING AN OPTICAL SENSOR AND OPTICAL SENSOR

• Main Authors: Bodner, Thomas, Toschkoff, Gregor, Schrank, Franz, Schrems, Martin, Labodi, Miklos, Siegert, Jörg
• Format: Patent
• Language: English; French; German
• Published: 17.04.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A method for manufacturing an optical sensor (10) is provided. The method comprises providing an optical sensor arrangement (11) which comprises at least two optical sensor elements (12) on a carrier (13), where the optical sensor arrangement (11) comprises a light entrance surface (14) at the side of the optical sensor elements (12) facing away from the carrier (13). The method further comprises forming a trench (15) between two optical sensor elements (12) in a vertical direction (z) which is perpendicular to the main plane of extension of the carrier (13), where the trench (15) extends from the light entrance surface (14) of the sensor arrangement (11) at least to the carrier (13). Moreover, the method comprises coating the trench (15) with an opaque material (16), forming electrical contacts (17) for the at least two optical sensor elements (12) on a back side (18) of the carrier (13) facing away from the optical sensor elements (12), and forming at least one optical sensor (10) by dicing the optical sensor arrangement (11) along the trench (15). Each optical sensor (10) comprises an optical sensor element (12), and the light entrance surface (14) is free of electrical contacts (17) and at least partially free of the opaque material (16) above the optical sensor elements (12). Furthermore, an optical sensor (10) is provided.