Patent ID: 8987035
Filing Date: 2015-03-24
Classification: H01L,H05K

Abstract:
1. A method for producing an infrared light detector comprising: preparing a plurality of connection pins, which are arranged with longitudinal ends of the connection pins arranged in a horizontal plane, wherein the connection pins extend downward from the horizontal plane, providing a circuit board having a top side provided with a continuous surface and a flat bottom side provided with respective recesses for each of the longitudinal ends of the connection pins, wherein the recesses are arranged at locations on the bottom side of the circuit board corresponding to connection locations for the connection pins associated with the respective recesses, wherein the recesses each extend from the bottom side toward the top side, wherein the recesses each terminate at a respective base beneath the top side, and wherein the recesses each have a mutually uniform shape; filling the recesses with a solder paste such that solder paste bodies with mutually same solder paste amounts are found in each of the recesses; positioning the circuit board above the connection pins, such that the longitudinal end of each of the connection pins extends inside a respective recess, and dips into a respective solder paste body situated in the respective recess; liquifying the solder paste bodies, such that electrically conductive connections are formed between the longitudinal ends of the connection pins and the solder paste bodies, and as a result of surface tension in the solder paste bodies and the dead weight of the circuit board, the bottom side of the circuit board is oriented parallel to the horizontal plane; solidifying the solder paste bodies, such that mechanically rigid connections between the circuit board and the longitudinal ends of the connection pins are formed with the solder paste bodies, and such that the orientation of the bottom side of the circuit boards is fixed parallel to the horizontal plane; and attaching a plurality of sensor chips to the top side of the circuit board.