发明名称 INTEGRATED CIRCUIT HAVING MULTIPLE THRESHOLD VOLTAGES
摘要 In one aspect there is set forth herein an integrated circuit having a first plurality of field effect transistors and a second plurality of field effect transistor, wherein field effect transistors of the first plurality of field effect transistors each have a first gate stack and wherein field effect transistors of the second plurality of field effect transistors each have a second gate stack, the second gate stack being different from the first gate stack by having a metal layer common to the first gate stack and the second gate stack that includes a first thickness at the first gate stack and a second thickness at the second gate stack.
申请公布号 US2015243563(A1) 申请公布日期 2015.08.27
申请号 US201414189085 申请日期 2014.02.25
申请人 GLOBALFOUNDRIES INC. 发明人 LEE Bongki;LIU Jin Ping;JOSHI Manoj;ELLER Manfred;PAL Rohit;CARTER Richard J.;SAMAVEDAM Srikanth Balaji
分类号 H01L21/8234;H01L29/49;H01L21/28;H01L27/088 主分类号 H01L21/8234
代理机构 代理人
主权项 1. An integrated circuit comprising: a substrate structure; a first plurality of field effect transistors formed in the substrate structure and a second plurality of field effect transistors formed in the substrate structure; wherein field effect transistors of the first plurality of field effect transistors each have a first gate stack and a first channel polarity; wherein field effect transistors of the second plurality of field effect transistors each have a second gate stack and the first channel polarity, the second gate stack being different from the first gate stack by having a conductive layer common to the first gate stack and the second gate stack that includes a first thickness at the first gate stack and a second thickness at the second gate stack; wherein field effect transistors of the first plurality of field effect transistors each have a first Vt, and wherein field effect transistors of the second plurality of field effect transistors each have a second Vt, the second Vt being different from the first Vt.
地址 Grand Cayman KY