Patent ID: 9647178
Date: 2017-05-09
CPC Classifications: H01L

Claim:
1. A method for packaging an optical module, the method comprising the steps of: (a) defining a light-emitting region and a light-admitting region on a substrate; (b) after step (a), forming a frame with a flat top surface on the substrate; (c) after step (b), connecting electrically a light-emitting chip and a light-admitting chip to the substrate; (d) after step (c), filling the frame with a transparent encapsulant having a flat top surface flush with the flat top surface of the frame for covering the light-emitting chip and the light-admitting chip; and (e) after step (d), forming an opaque printed shielding layer on the flat top surface of the frame and the flat top surface of the encapsulant by one of printing and transfer printing; wherein the light-emitting region and the light-admitting region are independent from each other; the light-emitting region has a first section adjacent to the substrate and a second section adjacent a light-emitting hole, the first and second sections having a border with the frame which is perpendicular to the substrate in the first section and expands outwardly toward the light-emitting hole in the second section.