Stats Chippac Pte. Ltd.

OMin Kwon

ChangOh Kim

Jiwon Lee

KyoungHee Park

JinHee Jung

YuJeong Jang

HunTeak Lee

HeeSoo Lee

KyungHwan Kim

Jinhee Jung

A semiconductor device has a substrate and encapsulant deposited over the substrate. An electrical connector is disposed over the substrate outside the encapsulant. An antenna can be formed over the substrate. A first shielding material is disposed over a portion of the encapsulant without covering the electrical connector with the first shielding material. The first shielding material is disposed over the portion of the encapsulant and the portion of the substrate using a direct jet printer. A cover is disposed over the electrical connector. A second shielding material is disposed over the encapsulant to prevent the second shielding material from reaching the electrical connector. The second shielding material overlaps the first shielding material and covers a side surface of the encapsulant and a side surface of the substrate. The cover is removed to expose the electrical connector free of shielding material.

Semiconductor device and method of forming EMI shielding material in two-step process to avoid contaminating electrical connector

A semiconductor device has a semiconductor package including a substrate comprising a land grid array. A component is disposed over the substrate. An encapsulant is deposited over the component. The land grid array remains outside the encapsulant. A fanged metal mask is disposed over the land grid array. A shielding layer is formed over the semiconductor package. The fanged metal mask is removed after forming the shielding layer.

Selective EMI shielding using preformed mask with fang design

A semiconductor package has a substrate, a first component disposed over the substrate, an encapsulant deposited over the first component, and a second component disposed over the substrate outside the encapsulant. A metal mask is disposed over the second component. A shielding layer is formed over the semiconductor package. The metal mask after forming the shielding layer. The shielding layer is optionally formed on a contact pad of the substrate while a conic area above the contact pad that extends 40 degrees from vertical remains free of the encapsulant and metal mask while forming the shielding layer. Surfaces of the metal mask and encapsulant oriented toward the contact pad can be sloped. The metal mask can be disposed and removed using a pick-and-place machine.

Selective EMI shielding using preformed mask

A semiconductor device has a semiconductor package including a substrate with a land grid array. A component is disposed over the substrate. An encapsulant is deposited over the component. The land grid array remains outside the encapsulant. A metal mask having a fiducial marker is disposed over the land grid array. A shielding layer is formed over the semiconductor package. The metal mask is removed after forming the shielding layer.

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Gyeonggi-do, South Korea

OMin Kwon