发明申请
US20130015554A1 Semiconductor Device and Method for Forming Passive Circuit Elements With Through Silicon Vias to Backside Interconnect Structures 有权
用于形成具有通过硅通孔的无源电路元件到半导体互连结构的半导体器件和方法

Semiconductor Device and Method for Forming Passive Circuit Elements With Through Silicon Vias to Backside Interconnect Structures
摘要:
A semiconductor wafer contains a substrate having a plurality of active devices formed thereon. An analog circuit is formed on the substrate. The analog circuit can be an inductor, metal-insulator-metal capacitor, or resistor. The inductor is made with copper. A through substrate via (TSV) is formed in the substrate. A conductive material is deposited in the TSV in electrical contact with the analog circuit. An under bump metallization layer is formed on a backside of the substrate in electrical contact with the TSV. A solder material is deposited on the UBM layer. The solder material is reflowed to form a solder bump. A wire bond is formed on a top surface of the substrate. A redistribution layer is formed between the TSV and UBM. The analog circuit electrically connects through the TSV to the solder bump on the back side of the substrate.
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