Patent ID: 6995033

Claim:
A method of fabricating an optical semiconductor package containing an integrated circuit chip that has an optical sensor and electrical connection regions on a front face, said method comprising the steps of: prefabricating a first plate that includes a first recess and a first assembly face located around the first recess; prefabricating a second plate that includes external electrical connection tracks, an aperture, a second recess, and a second assembly face located around the second recess, the aperture opening into a bottom of the second recess and the external electrical connection tracks including portions located on the assembly face and portions located in the bottom of the second recess; prefabricating a transparent patch; providing at least one of the first and second assembly faces with a layer of adhesive; placing the first and second plates together such that: the first assembly face faces the second assembly face, the integrated circuit chip and the transparent patch are positioned between the first and second plates with the integrated circuit chip being engaged in the first recess of the first plate, with the transparent patch being engaged in the second recess of the second plate, and with the transparent patch being positioned in front of the optical sensor of the integrated circuit chip, and electrical connection pads electrically couple, the electrical connection regions of the integrated circuit chip with the electrical connection track portions located in the bottom of the second recess; and exerting pressure in a direction in which the first and second plates come together to compress the layer of adhesive between the first and second assembly faces, so as to activate the layer of adhesive to fasten the first and second plates.