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

Claim 20:
21. A digital image sensor package, comprising:
an image sensor substrate carrying photodiodes; and
a glass covering having a bottom surface, a top surface opposite the bottom surface, and a flat sidewall delimiting a perimeter edge of the glass covering, wherein the glass covering is monolithic and overlies all of the photodiodes;
wherein a surface area of the top surface of the glass covering is greater than a surface area of the bottom surface of the glass covering;
wherein a surface area of a top surface of the image sensor substrate is greater than the surface area of the bottom surface of the glass covering;
wherein an acute angle between the flat sidewall and the top surface of the glass is in a range of 40° to 60°; and
wherein an obtuse angle between the flat sidewall and the bottom surface of the glass covering is in a range of 120° to 140°.