Patent ID: 11894343
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A semiconductor device, comprising:
a plurality of stacked semiconductor dies, each semiconductor die comprising:
a first major surface having a length and a width,
a second major surface having a length and a width corresponding to the length and the width of the first major surface,
an edge extending between the first and second major surfaces,
metal pillars formed on the first major surface adjacent the edge of the semiconductor die, and
die attach film (DAF) on the second major surface for affixing the second major surface to another surface, the plurality of semiconductor dies stacked in a block, separated by the DAF;
grooves formed in a side of the block, the grooves exposing the metal pillars; and
molding compound encapsulating the plurality of semiconductor dies, at least one of the grooves formed through a surface of the molding compound.