OPTICAL MODULE HAVING OPTICAL BLOCK FOR PASSIVE OPTICAL ALIGNMENT AND METHOD FOR MANUFACTURING SAME

The present invention relates to an optical module which is modularized including an optical element and an optical transmission member for mass data high-speed transmission of a board in a device and mass data high-speed transmission between devices, and in which optical alignment is completed between the optical element and the optical transmission member in the module, thereby removing an optical alignment error occurring when mounting it on an external PCB substrate, and provides an optical module includes an optical transmission member (100), an optical element 200, a substrate 210, an electrode pad 220 between the optical element 200 and an external circuit, and optical block 300 including an optical transmission member mounting portion, wherein the optical transmission member mounting portion is formed on the optical block in an optical axis direction such that optical transmission efficiency is the maximum. In addition, a manufacturing method of the optical module includes mounting and electrically connecting the optical element 200 on one face of the substrate 210, calculating a position on a 2-dimensional plane of an optical input/output point of the optical element 200, then forming a base material of the optical block 300 to impregnate the optical element 200 onto the substrate 210, thereafter, forming the optical transmission member mounting portion 310 at the position on the 3-dimensional plane of the optical input/output point calculated in the former step on the base material, and mounting the optical transmission member 100 on the optical transmission member mounting portion 310.