发明名称 Method of making an integrated circuit resistor
摘要 A process for fabricating an integrated circuit resistor is disclosed. In accordance with one embodiment of that invention a first thin layer of silicon is deposited to overlay a semiconductor substrate. That thin layer of silicon is doped to a predetermined level to establish the proper conductivity desired for the integrated circuit resistor being formed. The first layer of silicon is patterned to form a first resistor layer and a second interconnect area with the two areas being in contact. A layer of insulating material is formed over the resistor area to mask the resistor area from subsequent processing steps. A second layer of silicon is deposited by a process of selective deposition onto the exposed interconnect areas of the first thin layer of silicon and that selectively deposited silicon is heavily doped with conductivity determining impurity material to reduce the resistivity thereof.
申请公布号 US4948747(A) 申请公布日期 1990.08.14
申请号 US19890451900 申请日期 1989.12.18
申请人 MOTOROLA, INC. 发明人 PFIESTER, JAMES R.
分类号 H01L21/02;H01L27/11 主分类号 H01L21/02
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