发明申请
US20120187568A1 Semiconductor Device and Method of Forming FO-WLCSP with Multiple Encapsulants 有权
半导体器件和形成具有多个密封剂的FO-WLCSP的方法

Semiconductor Device and Method of Forming FO-WLCSP with Multiple Encapsulants
摘要:
A semiconductor device has a first semiconductor die including TSVs mounted to a carrier with a thermally releasable layer. A first encapsulant having a first coefficient of thermal expansion CTE is deposited over the first semiconductor die. The first encapsulant includes an elevated portion in a periphery of the first encapsulant that reduces warpage. A surface of the TSVs is exposed. A second semiconductor die is mounted to the surface of the TSVs and forms a gap between the first and second semiconductor die. A second encapsulant having a second CTE is deposited over the first and second semiconductor die and within the gap. The first CTE is greater than the second CTE. In one embodiment, the first and second encapsulants are formed in a chase mold. An interconnect structure is formed over the first and second semiconductor die.
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