Patent ID: 11942496
Assignee: STMICROELECTRONICS PTE LTD
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 28:
29. A digital image sensor package, comprising:
a printed circuit board;
an image sensor substrate stacked on the printed circuit board and including photodiodes;
a transparent covering associated with the image sensor substrate and having a bottom surface, a top surface opposite the bottom surface, and a sidewall delimiting a perimeter edge of the transparent covering, wherein the transparent covering overlies the image sensor substrate; and
mounting hardware physically coupling portions of the bottom surface of the transparent covering to the printed circuit board, wherein the mounting hardware comprises:
a first portion physically coupled to the printed circuit board and extending upwardly therefrom;
a second portion extending inwardly from a periphery of the image sensor substrate toward the photodiodes so as to define an aperture over the image sensor substrate; and
an intermediate connecting portion connecting the first portion to the second portion;
wherein portions of the bottom surface of the glass covering are physically coupled to a top face of the second portion of the mounting hardware so that the glass covering extends over and across the aperture, the top face of the second portion being opposite to a bottom face of the second portion, the bottom face of the second portion directly facing the image sensor substrate;

wherein the sidewall and the top surface of the transparent covering form a first angle, and the sidewall and the bottom surface of the transparent covering form a second angle different than the first angle; and
wherein the first and second angles are such that light that enters the transparent covering on a first trajectory that results in the light impinging upon the sidewall being reflected on a second trajectory that avoids the image sensor substrate.