Three Dimensional Integration With Through Silicon Vias Having Multiple Diameters

A method is disclosed which includes patterning a photoresist layer on a substrate of a structure, removing a first portion of the photoresist layer to expose a first area of the substrate, etching the first area to form a cavity having a first depth, removing a second portion of the photoresist to...

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Bibliographische Detailangaben
Hauptverfasser: KINSER EMILY R, KEI RAMONA, WISE RICHARD, YUSUFF HAKEEM, LISI ANTHONY D, FAROOQ MUKTA G
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A method is disclosed which includes patterning a photoresist layer on a substrate of a structure, removing a first portion of the photoresist layer to expose a first area of the substrate, etching the first area to form a cavity having a first depth, removing a second portion of the photoresist to expose an additional area of the substrate, and etching the cavity to expose a first conductor in the structure and the additional area to expose a second conductor in the structure.