发明名称 |
Method for making interconnects and semiconductor structures using electrophoretic photoresist deposition |
摘要 |
A method for electrophoretically depositing a layer of photoresist on a non-planar silicon structure and a method for forming a non-planar silicon structure using electrophoretic deposition are provided. The method comprises forming a silicon substrate with a non-planar topography and forming a conductive layer on the substrate. The substrate is then submerged in an electrolytic bath containing a photoresist solution comprising a polymer and a charged carrier group. At the same time the conductive layer is connected to a voltage source and to a non-sacrificial electrode and electrically biased. The biased conductive layer attracts the carrier group and causes a layer of photoresist to uniformly deposit on the conductive layer. The layer of photoresist can then be exposed and developed to form a photomask for etching the conductive layer. In an illustrative embodiment the silicon structure is an interconnect for testing unpackaged semiconductor dice. In another embodiment the silicon structure is a semiconductor structure having a dielectric layer formed on a non-planar topography and metal conductive lines formed on the dielectric layer.
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申请公布号 |
US5607818(A) |
申请公布日期 |
1997.03.04 |
申请号 |
US19950452798 |
申请日期 |
1995.05.30 |
申请人 |
MICRON TECHNOLOGY, INC. |
发明人 |
AKRAM, SALMAN;FARNWORTH, WARREN;HEMBREE, DAVID R. |
分类号 |
G01R1/04;G01R1/067;G01R1/073;G01R3/00;G01R31/28;H01L21/60;H01L21/66;H01L21/68;H01L23/13;H01L23/498;H05K3/00;H05K3/40;H05K3/42;(IPC1-7):G03C5/00 |
主分类号 |
G01R1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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