IMAGE SENSOR PACKAGING METHOD OF OPTICAL POINTING APPARATUS

摘要

An image sensor packaging method of an optical pointing apparatus is provided to improve productivity by shortening a working time, and prevent a performance from lowering due to heat by cooling efficiently heat generated from an image sensor. A printed circuit board(10) including a plurality of lead terminal groups is prepared. The lead terminal groups are printed in a constant interval on the printed circuit board. Each of the lead terminal group includes a center loading part(12) and lead terminals(14) formed around the loading part. A through-hole(15) is formed at the center loading part of the printed circuit board on which an image sensor(20) is loaded. A heat-absorbing pad(52) is installed on an upper surface of the center loading part. The image sensor is installed on the heat-absorbing pad which is installed at the center loading part. A bonding pad(24) of the image sensor connected with the lead terminals by using a bonding wire(30). A transparent sealant(40) is formed to seal the printed circuit board in order to package the image sensor, the bonding wire, and the lead terminal groups. The packaged image sensors are divided into each of image sensors.