公开(公告)号：EP1825508A4

公开(公告)日：2009-06-24

申请号：EP05852638

申请日：2005-12-01

Applicant: IBM

Inventor： CABRAL CYRIL JR ,  DZIOBKOWSKI CHESTER T ,  ELLIS-MONAGHAN JOHN J ,  FANG SUNFEI ,  LAVOIE CHRISTIAN ,  LUO ZHIJIONG ,  NAKOS JAMES S ,  STEEGEN AN L ,  WANN CLEMENT H

IPC: H01L21/8238 ,  H01L21/3205 ,  H01L21/44 ,  H01L21/4763

CPC classification number: H01L21/28518 ,  H01L21/823814 ,  H01L21/823835

Abstract: A method of fabricating a complementary metal oxide semiconductor (CMOS) device, wherein the method comprises forming a first well region (103) in a semiconductor substrate (102) for accommodation of a first type semiconductor device (130); forming a second well region (104) in the semiconductor substrate (102) for accommodation of a second type semiconductor device (140); shielding the first type semiconductor device (130) with a mask (114); depositing a first metal layer (118) over the second type semiconductor device (140); performing a first salicide formation on the second type semiconductor device (140); removing the mask (114); depositing a second metal layer (123) over the first and second type semiconductor devices (130,140); and performing a second salicide formation on the first type semiconductor device (130). The method requires only one pattern level and it eliminates pattern overlay as it also simplifies the processes to form different suicide material over different devices.

公开(公告)号：EP1668706A4

公开(公告)日：2008-11-05

申请号：EP04786558

申请日：2004-08-20

Applicant: IBM

Inventor： STEEGEN AN L ,  KU VICTOR ,  WONG KWONG HON ,  LI YING ,  NARAYANAN VIJAY ,  CABRAL CYRIL JR ,  JAMISON PAUL

IPC: H01L29/94 ,  H01L21/28 ,  H01L21/3205 ,  H01L21/336 ,  H01L21/4763 ,  H01L29/49

CPC classification number: H01L29/66545 ,  H01L21/28079 ,  H01L29/4958

Abstract: A structure and method for a metal replacement gate of a high performance device is provided. A sacrificial gate structure (260) is first formed on an etch stop layer (250) provided on a semiconductor substrate (240). A pair of spacers (400) is provided on sidewalls of the sacrificial gate structure (300). The sacrificial gate structure (300) is then removed, forming an opening (600). Subsequently, a metal gate (1000) including an first layer (700) of metal such as tungsten, a diffusion barrier (800) such as titanium nitride, and a second layer (900) of metal such as tungsten is formed in the opening (600) between the spacers (400).

公开(公告)号：EP1654770A4

公开(公告)日：2008-07-16

申请号：EP04780054

申请日：2004-08-04

Applicant: IBM

Inventor： CHEN HUAJIE ,  CHIDAMBARRAO DURESETI ,  GLUSCHENKOV OLEG G ,  STEEGEN AN L ,  YANG HAINING S

IPC: H01L31/0328 ,  H01L21/20 ,  H01L21/336 ,  H01L21/8238 ,  H01L21/84 ,  H01L27/092 ,  H01L27/12 ,  H01L31/0336

CPC classification number: H01L21/84 ,  H01L21/02532 ,  H01L21/02636 ,  H01L21/823807 ,  H01L21/823814 ,  H01L27/0922 ,  H01L27/1203 ,  H01L29/165 ,  H01L29/6656 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/7848

Abstract: A p-type field effect transistor (PFET) (10) and an n-type field effect transistor (NFET) (12) of an integrated circuit are provided. A first strain is applied to the channel region (20) of the PFET (10) but not the NFET (12) via a lattice-mismatched semiconductor layer such as silicon germanium disposed in source and drain regions (111) of only the PFET (10) and not of the NFET.(12) A process of making the PFET (10) and NFET (12) is provided. Trenches are etched in the areas to become the source and drain regions (111) of the PFET and a lattice-mismatched silicon germanium layer (121) is grown epitaxially therein to apply a strain to the channel region of the PFET adjacent thereto. A layer of silicon (14) can be grown over the silicon germanium layer (121) and a salicide (68) formed from the layer of silicon to provide low-resistance source and drain regions (111).

公开(公告)号：EP1680804A4

公开(公告)日：2008-07-09

申请号：EP04810466

申请日：2004-11-05

Applicant: IBM

Inventor： STEEGEN AN L ,  YANG HAINING S ,  ZHANG YING

IPC: H01L21/762 ,  H01L21/20 ,  H01L21/265 ,  H01L21/336 ,  H01L21/8238 ,  H01L29/10 ,  H01L29/78

CPC classification number: H01L29/7833 ,  H01L21/02381 ,  H01L21/0243 ,  H01L21/02532 ,  H01L21/02658 ,  H01L21/26506 ,  H01L21/76224 ,  H01L21/76232 ,  H01L21/76283 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823878 ,  H01L29/1054 ,  H01L29/665 ,  H01L29/66575 ,  H01L29/78 ,  H01L29/7842 ,  H01L29/7846 ,  H01L29/7849

Abstract: A method for manufacturing a device including an n-type device and a p-type device. In an aspect of the invention, the method involves doping a portion of a semiconductor substrate (200) and forming a gap (219) in the semiconductor substrate (200) by removing at least a portion of the doped portion of the semiconductor substrate (200). The method further involves growing a strain layer (227) in at least a portion of the gap (219) in the semiconductor substrate (200). For the n-type device, the strain layer (227) is grown on at least a portion which is substantially directly under a channel of the n-type device. For the p-type device, the strain layer is grown on at least a portion which is substantially directly under a source region or drain region of the p-type device and not substantially under a channel of the p-type device.