Patent ID: 11881494
Assignee: UTAC HEADQUARTERS PTE LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A device comprising:
a package substrate having top and bottom major package substrate surfaces, the top major package surface includes a die attach region;
a sensor die having a second major die surface attached to the die attach region, wherein a first major die surface of the die includes a sensor region and a die adhesive region surrounding the sensor region;
a cover adhesive disposed on the die adhesive region, wherein the cover adhesive comprises an adhesive height;
a transparent protective cover attached to the die by the cover adhesive, the protective cover forms a cavity over the sensor region, wherein a cavity height of the cavity is defined by the adhesive height;
an encapsulant encapsulating the device while leaving a top cover surface of the transparent protective cover exposed; and
a cover dam structure, the cover dam structure is disposed on a periphery of a top surface of the protective cover, the cover dam structure surrounds the periphery of the protective cover to prevent the encapsulant from bleeding beyond the cover dam structure to the top protective cover within the cover dam structure.