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    • 10. 发明授权
    • Through wafer vias with dishing correction methods
    • 通过具有凹陷校正方法的晶片通孔
    • US08166651B2
    • 2012-05-01
    • US12181359
    • 2008-07-29
    • Peter J. LindgrenEdmund J. SprogisAnthony K. Stamper
    • Peter J. LindgrenEdmund J. SprogisAnthony K. Stamper
    • H01K3/10H05K3/02H05K3/10H01L29/40
    • H01L21/76898H01L21/76838H01L21/7684H01L23/522H01L2924/0002H01L2924/00
    • A method of forming a through wafer via including forming the through wafer via (TWV) into a substrate and through a first dielectric layer over the substrate; planarizing the first dielectric layer using a chemical mechanical polish before forming a second dielectric layer; forming the second dielectric layer over the substrate and the TWV; forming at least one first contact through the second dielectric layer and to the TWV; forming at least one second contact through the second dielectric layer and the first dielectric layer directly and electrically connected to another structure upon the substrate; and forming a first metal wiring layer directly over the second dielectric layer, the first metal wiring layer directly and physically contacting the at least one first contact and the at least one second contact.
    • 一种形成贯穿晶片通孔的方法,包括通过(TWV)形成贯穿晶片进入衬底并穿过衬底上的第一介电层; 在形成第二电介质层之前,使用化学机械抛光平面化第一介电层; 在所述衬底和所述TWV上形成所述第二电介质层; 通过所述第二介电层和所述TWV形成至少一个第一接触; 通过所述第二电介质层和所述第一介电层形成至少一个第二接触,并且在所述衬底上直接电连接到另一结构; 以及直接在所述第二电介质层上方形成第一金属布线层,所述第一金属布线层直接地和物理地接触所述至少一个第一触点和所述至少一个第二触点。