发明名称 SEMICONDUCTOR APPARATUS WITH A STABLE CONTACT RESISTANCE AND A METHOD OF MAKING THE SEMICONDUCTOR APPARATUS
摘要 A semiconductor apparatus includes a MOS transistor and a resistive element having insulative first polysilicon and conductive second polysilicon films, an insulating film for a resistive element, and a third polysilicon film. The second polysilicon film is formed in a region adjacent each side edge of the first polysilicon film, and has a contact hole formed therein. The third polysilicon film determines a resistance value of the resistive element, and is continuously formed on the second polysilicon film and the insulating film formed on the first polysilicon film. The MOS transistor is formed in an active region surrounded by the field insulating film, and includes a gate oxide film and a gate electrode including a polysilicon film formed as a lower layer with the second polysilicon film and a polysilicon film formed as an upper layer with the third polysilicon film. A method of making this semiconductor apparatus is also described.
申请公布号 US2004099930(A1) 申请公布日期 2004.05.27
申请号 US20020305540 申请日期 2002.11.27
申请人 RICOH COMPANY, LTD. 发明人 KONISHI JUNICHI
分类号 H01L21/02;H01L21/768;H01L21/8244;H01L21/8246;H01L27/06;H01L27/11;(IPC1-7):H01L29/00 主分类号 H01L21/02
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