公开(公告)号：HK1032293A1

公开(公告)日：2001-07-13

申请号：HK01102845

申请日：2001-04-23

Applicant: IBM ,  INFINEON TECHNOLOGIES CORP

Inventor： RAMA DIVAKARUNI ,  GAMBINO JEFFREY P ,  MANDELMAN JACK A ,  RENGARAJAN RAJESH

IPC: H01L21/28 ,  H01L21/265 ,  H01L21/336 ,  H01L21/60 ,  H01L21/768 ,  H01L21/8238 ,  H01L21/8242 ,  H01L27/108 ,  H01L29/423 ,  H01L29/43 ,  H01L29/49 ,  H01L29/772 ,  H01L29/78 ,  H01L

Abstract: The process rules for manufacturing semiconductor devices such as MOSFET's are modified to provide dual work-function doping following the customary gate sidewall oxidation step, greatly reducing thermal budget and boron penetration concerns. The concern of thermal budget is further significantly reduced by a device structure which allows a reduced gap aspect ratio while maintaining low sheet resistance values. A reduced gap aspect ratio also relaxes the need for highly reflowable dielectric materials and also facilitates the use of angled source-drain (S-D) and halo implants. Also provided is a novel structure and process for producing a MOSFET channel, lateral doping profile which suppresses short channel effects while providing low S-D junction capacitance and leakage, as well as immunity to hot-carrier effects. This also affords the potential for reduction in the contact stud-to-gate conductor capacitance, because borderless contacts can be formed with an oxide gate sidewall spacer. As a result, the S-D junctions can be doped independently of the gate conductor doping, more easily allowing a variety of MOSFET structures.

公开(公告)号：SG97204A1

公开(公告)日：2003-07-18

申请号：SG200106328

申请日：2001-10-12

Applicant: IBM

Inventor： JAMES W ADKISSON ,  PAUL D AGNELLO ,  ARNE W BALLANTINE ,  RAMA DIVAKARUNI ,  ERIN JONES ,  EDWARD JOSEPH NOWAK ,  JED H RANKIN

IPC: H01L29/161 ,  H01L21/336 ,  H01L21/8234 ,  H01L21/84 ,  H01L27/08 ,  H01L27/088 ,  H01L27/092 ,  H01L27/12 ,  H01L29/423 ,  H01L29/786 ,  H01L29/78

Abstract: A double gated silicon-on-insulator (SOI) MOSFET is fabricated by forming epitaxially grown channels, followed by a damascene gate. The double gated MOSFET features narrow channels, which increases current drive per layout width and provides low out conductance.