Patent ID: 11942417
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device comprising:
a sensor die having a sensing region at a top surface of the sensor die;
an encapsulant at least laterally encapsulating the sensor die, wherein the encapsulant physically contacts a sidewall surface of the sensor die;
a conductive via extending through the encapsulant; and
a front-side redistribution structure on the encapsulant and on the top surface of the sensor die, wherein the front-side redistribution structure is connected to the conductive via and the sensor die, wherein an opening in the front-side redistribution structure exposes the sensing region of the sensor die, and wherein the front-side redistribution structure comprises a first dielectric layer extending over the encapsulant and the top surface of the sensor die, wherein a sidewall of the first dielectric layer forms a sidewall of the opening, a metallization pattern on the first dielectric layer, and a second dielectric layer extending over the metallization pattern and the first dielectric layer, wherein a top surface of the first dielectric layer adjacent the sidewall of the first dielectric layer is free of the second dielectric layer.