发明名称 Methods for forming through-wafer interconnects and structures resulting therefrom
摘要 The present invention relates to methods for forming through-wafer interconnects in semiconductor substrates and the resulting structures. In one embodiment, a method for forming a through-wafer interconnect includes providing a substrate having a pad on a surface thereof, depositing a passivation layer over the pad and the surface of the substrate, and forming an aperture through the passivation layer and the pad using a substantially continuous process. An insulative layer is deposited in the aperture followed by a conductive layer and a conductive fill. In another embodiment of the invention, a semiconductor device is formed including a first interconnect structure that extends through a conductive pad and is electrically coupled with the conductive pad while a second interconnect structure is formed through another conductive pad while being electrically isolated therefrom. Semiconductor devices and assemblies produced with the methods are also disclosed.
申请公布号 US7517798(B2) 申请公布日期 2009.04.14
申请号 US20050219132 申请日期 2005.09.01
申请人 MICRON TECHNOLOGY, INC. 发明人 TUTTLE MARK E.
分类号 H01L21/44 主分类号 H01L21/44
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