Invention Grant
US09318404B2 Semiconductor device and method of forming stress relieving vias for improved fan-out WLCSP package 有权
半导体器件和形成应力消除通孔的方法,用于改进扇出WLCSP封装

Semiconductor device and method of forming stress relieving vias for improved fan-out WLCSP package
Abstract:
A semiconductor device includes a semiconductor die. An encapsulant is disposed around the semiconductor die to form a peripheral area. An interconnect structure is formed over a first surface of the semiconductor die and encapsulant. A plurality of vias is formed partially through the peripheral area of the encapsulant and offset from the semiconductor die. A portion of the encapsulant is disposed over a second surface of the semiconductor die opposite the first surface. The plurality of vias comprises a depth greater than a thickness of the portion of the encapsulant. A first portion of the plurality of vias is formed in a row offset from a side of the semiconductor die. A second portion of the plurality of vias is formed as an array of vias offset from a corner of the semiconductor die. A repair material disposed within the plurality of vias.
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