发明名称 Method of making asymmetrical field effect transistor
摘要 A method of making a field effect transistor includes forming an active layer in a semiconductor substrate, forming a gate material on a portion of the surface as an ion implantation mask, implanting dopant ions to form a source region, depositing a first mask over the source region and a portion of the gate material, and removing the unmasked gate material to define a gate electrode. A second mask is deposited adjacent the gate electrode opposite the source region, and dopant impurities are implanted to form a drain region using the mask. The source and drain regions are asymmetrically doped and the gate electrode is asymmetrically disposed relative to the source and drain regions in the self-aligning process.
申请公布号 US5036017(A) 申请公布日期 1991.07.30
申请号 US19890441898 申请日期 1989.11.27
申请人 MITSUBISHI DENKI KABUSHIKI KAISHA 发明人 NODA, MINORU
分类号 H01L29/812;H01L21/336;H01L21/337;H01L21/338;H01L29/08;H01L29/10;H01L29/423;H01L29/78 主分类号 H01L29/812
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