Stats Chippac Pte. Ltd.

National University of Singapore

Jian Zuo

Xusheng Bao

Ma Phoo Pwint Hlaing

Yaojian Lin

Linda Pei Ee Chua

Hin Hwa Goh

Tai-Shung Chung

A semiconductor device has a first hybrid substrate with a first thickness, and a second hybrid substrate with a second thickness different from the first thickness of the first hybrid substrate. An encapsulant is deposited around the first hybrid substrate and second hybrid substrate. A portion of the first hybrid substrate and a portion of the second hybrid substrate and a portion of the encapsulant can be removed after encapsulation to achieve uniform thickness for the first hybrid substate and second hybrid substrate. The first hybrid substrate has an embedded substrate, a first interconnect structure formed over a first surface of the embedded substrate, and a second interconnect structure formed over a second surface of the embedded substrate opposite the first surface of the embedded substrate. A plurality of conductive pillars is formed over the first interconnect structure. A plurality of conductive vias is formed through the embedded substrate.

Semiconductor device and method of forming hybrid substrate with uniform thickness

A semiconductor device has a semiconductor die. A first contact pad, second contact pad, and third contact pad are formed over the semiconductor die. An under-bump metallization layer (UBM) is formed over the first contact pad, second contact pad, and third contact pad. The UBM electrically connects the first contact pad to the second contact pad. The third contact pad is electrically isolated from the UBM. Conductive traces can be formed extending between the first contact pad and second contact pad under the UBM. A fourth contact pad can be formed over the first contact pad and a fifth contact pad can be formed over the second contact pad. The UBM is then formed over the fourth and fifth contact pads.

Split RDL connection between die and UBM

There is provided a hollow fiber membrane for vacuum membrane distillation having a maximum tensile strength of a &#x2265;3.5 MPa and a liquid entry pressure (LEP) of &#x2265;3.0 bar, wherein the hollow fiber membrane is a single layer hollow fiber membrane comprising a wall with a thickness of &#x2264;150 &#x3bc;m and a cross-section comprising two open cell layers with an array of interconnected pores and a macrovoid layer between the two open cell layers. The hollow fiber has improved mechanical strength and vacuum membrane distillation flux.

Hollow fiber membrane

A semiconductor device has a semiconductor wafer with a first conductive layer formed over a surface of the semiconductor wafer. A first insulating layer is formed over the surface of the semiconductor wafer and first conductive layer. A second conductive layer is formed over the first insulating layer and first conductive layer. A second insulating layer is formed over the first insulating layer and second conductive layer. A plurality of openings is formed in the second insulating layer in a bump formation area of the semiconductor wafer to expose the second conductive layer and reduce adverse effects of electro-migration. The openings are separated by portions of the second insulating layer. A UBM layer is formed over the openings in the second insulating layer in the bump formation area electrically connected to the second conductive layer. A bump is formed over the UBM layer.

Semiconductor device and method of forming patterned repassivation openings between RDL and UBM to reduce adverse effects of electro-migration

A semiconductor device has a semiconductor wafer with a plurality of semiconductor die. A first conductive layer is formed over a surface of the wafer. A first insulating layer is formed over the surface of the wafer and first conductive layer. A second conductive layer has first and second segments formed over the first insulating layer. A second insulating layer is formed over the first insulating layer and second conductive layer. A UBM layer is formed over the second insulating layer and the first segment of the second conductive layer. A first bump is formed over the UBM layer. The first bump is electrically connected to the second segment and electrically isolated from the first segment of the second conductive layer. A second bump is formed over the surface of the wafer and electrically connected to the first segment of the second conductive layer.

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Singapore, Singapore

Jian Zuo