Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Reexamination Certificate
2005-05-10
2005-05-10
Pert, Evan (Department: 2829)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
C438S630000
Reexamination Certificate
active
06890808
ABSTRACT:
A method for manufacturing an integrated circuit that has a plurality of semiconductor devices including an n-type field effect transistor and a p-type field effect transistor. This method involves depositing oxide fill on the n-type transistor and the p-type transistor and chemical/mechanical polishing the deposited oxide fill such that a gate stack of the n-type transistor and a gate stack of the p-type transistor, which each have spacers which are surrounded with oxide. The method further involves etching a portion of the polysilicon from a gate of the p-type field effect transistor, depositing a low resistance material (e.g., Co, Ni, Ti, or other similar metals) on the n-type field effect transistor and the p-type field effect transistor, and heating the integrated circuit such that the deposited material reacts with the polysilicon of the n-type transistor and the polysilicon of the p-type transistor to form silicide. The silicide formed on the p-type polysilicon imposes compressive mechanical stresses along the longitudinal direction of the p-type field effect transistor. A semi-conductor device formed by this method has compressive stresses along the length of the PFET channel and tensile stresses along the length of the NFET channel.
REFERENCES:
patent: 3602841 (1971-08-01), McGroddy
patent: 4665415 (1987-05-01), Esaki et al.
patent: 4853076 (1989-08-01), Tsaur et al.
patent: 4855245 (1989-08-01), Neppl et al.
patent: 4952524 (1990-08-01), Lee et al.
patent: 4958213 (1990-09-01), Eklund et al.
patent: 5006913 (1991-04-01), Sugahara et al.
patent: 5060030 (1991-10-01), Hoke
patent: 5081513 (1992-01-01), Jackson et al.
patent: 5108843 (1992-04-01), Ohtaka et al.
patent: 5134085 (1992-07-01), Gilgen et al.
patent: 5310446 (1994-05-01), Konishi et al.
patent: 5354695 (1994-10-01), Leedy
patent: 5371399 (1994-12-01), Burroughes et al.
patent: 5391510 (1995-02-01), Hsu et al.
patent: 5459346 (1995-10-01), Asakawa et al.
patent: 5471948 (1995-12-01), Burroughes et al.
patent: 5557122 (1996-09-01), Shrivastava et al.
patent: 5561302 (1996-10-01), Candelaria
patent: 5565697 (1996-10-01), Asakawa et al.
patent: 5571741 (1996-11-01), Leedy
patent: 5592007 (1997-01-01), Leedy
patent: 5592018 (1997-01-01), Leedy
patent: 5670798 (1997-09-01), Schetzina
patent: 5677232 (1997-10-01), Kim et al.
patent: 5679965 (1997-10-01), Schetzina
patent: 5683934 (1997-11-01), Candelaria
patent: 5840593 (1998-11-01), Leedy
patent: 5861651 (1999-01-01), Brasen et al.
patent: 5880040 (1999-03-01), Sun et al.
patent: 5940736 (1999-08-01), Brady et al.
patent: 5946559 (1999-08-01), Leedy
patent: 5989978 (1999-11-01), Peidous
patent: 6008126 (1999-12-01), Leedy
patent: 6025280 (2000-02-01), Brady et al.
patent: 6046464 (2000-04-01), Schetzina
patent: 6066545 (2000-05-01), Doshi et al.
patent: 6090684 (2000-07-01), Ishitsuka et al.
patent: 6107143 (2000-08-01), Park et al.
patent: 6117722 (2000-09-01), Wuu et al.
patent: 6133071 (2000-10-01), Nagai
patent: 6165383 (2000-12-01), Chou
patent: 6221735 (2001-04-01), Manley et al.
patent: 6228694 (2001-05-01), Doyle et al.
patent: 6246095 (2001-06-01), Brady et al.
patent: 6255169 (2001-07-01), Li et al.
patent: 6261964 (2001-07-01), Wu et al.
patent: 6274444 (2001-08-01), Wang
patent: 6281532 (2001-08-01), Doyle et al.
patent: 6284626 (2001-09-01), Kim
patent: 6361885 (2002-03-01), Chou
patent: 6362082 (2002-03-01), Doyle et al.
patent: 6368931 (2002-04-01), Kuhn et al.
patent: 6403975 (2002-06-01), Brunner et al.
patent: 6406973 (2002-06-01), Lee
patent: 6476462 (2002-11-01), Shimizu et al.
patent: 6493497 (2002-12-01), Ramdani et al.
patent: 6498358 (2002-12-01), Lach et al.
patent: 6501121 (2002-12-01), Yu et al.
patent: 6506652 (2003-01-01), Jan et al.
patent: 6509618 (2003-01-01), Jan et al.
patent: 6512273 (2003-01-01), Krivokapic et al.
patent: 6521964 (2003-02-01), Jan et al.
patent: 6531369 (2003-03-01), Ozkan et al.
patent: 6531740 (2003-03-01), Bosco et al.
patent: 6573172 (2003-06-01), En et al.
patent: 20020074598 (2002-06-01), Doyle et al.
patent: 20020086472 (2002-07-01), Roberds et al.
patent: 20020090791 (2002-07-01), Doyle et al.
patent: 20030040158 (2003-02-01), Saitoh
Novel Locally Strained Channel Technique for High Performance 55nm CMOS K. Ota, et al. 2002 IEEE, 2.2.1-2.2.4, IEDM 27.
Local Mechanical-Stress Control (LMC): A New Technique for CMOS—Performance Enchancement A. Shimizu, et al. 2001 IEEE, 19.4.1-19.4.4, IEDM 01-433.
Mechanical Stress Effect of Etch-Stop Nitride and its Impact on Deep Submicron Transistor Design Shinya Ito, et al. 2000 IEEE, 10.7.1-10,7.4, IEDM 00-247.
A Highly Dense, High-Performance 130nm node CMOS Technology for Large Scale System -on-a- Chip Applications F. Ootsuka, et al. 2000 IEEE, 23.5.1-23.5.4, IEDM 00-575.
NMOS Drive Current Reduction Caused by Transistor-Layout and Trench Isolation Induced Stress Gregory Scott, et al. 1999 IEEE, 34.4.1-34.4.4, IEDM 99-827.
Transconductance Enhancement in Deep Submicron Strained-Si n- MOSFETs Kern (Ken) Rim, et al. 1998 IEEE, 26.8.1-26.8.4, IEDM 98-707.
Characteristics and Device Design of Sub-100 nm Strained Si N- and PMOSFET's K. Rim, et al. 2002 IEEE, 98-99, 2002 Symposium On VLSI Technology Digest of Technical Papers.
Chidambarrao Dureseti
Dokumaci Omer H.
Abate Joseph P.
International Business Machines - Corporation
McGuireWoods LLP
Pert Evan
Sarkar Asok Kumar
LandOfFree
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