公开(公告)号：JP2004158851A

公开(公告)日：2004-06-03

申请号：JP2003359944

申请日：2003-10-20

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： CLEVENGER LARRY ,  KLEPEIS STANLEY ,  LU HSIAO-LING ,  MARINO JEFFREY ,  SIMON ANDREW HERBERT ,  WANG YUN-YU ,  WONG KWONG HON ,  YANG CHIH-CHAO

IPC: H01L23/52 ,  H01L21/3205 ,  H01L21/768 ,  H01L23/522 ,  H01L23/532

CPC classification number: H01L21/76843 ,  H01L21/76846 ,  H01L23/53238 ,  H01L2924/0002 ,  H01L2924/00

Abstract: PROBLEM TO BE SOLVED: To solve the problem of carbon contamination that dos not occur in circuits using oxide as dielectric, which exists in advanced technology using low-k organic-based interlayer dielectrics in copper backend integrated circuit technology. SOLUTION: A composite liner layer for the copper lines uses Ti as a bottom layer, which has property of gettering carbon and other contaminants. The known problem of Ti as reacting with copper to form a high resistivity compound is avoided by adding a layer of TiN, which isolates the Ti and the copper. COPYRIGHT: (C)2004,JPO

公开(公告)号：WO2004027824A2

公开(公告)日：2004-04-01

申请号：PCT/US0329085

申请日：2003-09-16

Applicant: INFINEON TECHNOLOGIES AG ,  IBM ,  SCHUTZ RONALD J ,  ROBL WERNER ,  MALIK RAJEEV ,  CLEVENGER LARRY ,  GLUSCHENKOV OLEG ,  CABRAL CYRIL JR ,  IGGULDEN ROY C ,  WANG YUN-YU ,  WONG KWONG HON ,  MCSTAY IRENE

Inventor： SCHUTZ RONALD J ,  ROBL WERNER ,  MALIK RAJEEV ,  CLEVENGER LARRY ,  GLUSCHENKOV OLEG ,  CABRAL CYRIL JR ,  IGGULDEN ROY C ,  WANG YUN-YU ,  WONG KWONG HON ,  MCSTAY IRENE

IPC: H01L20060101 ,  H01L21/28 ,  H01L21/3205 ,  H01L21/336 ,  H01L21/4763 ,  H01L21/768 ,  H01L23/522 ,  H01L29/40 ,  H01L29/51 ,  H01L29/78 ,  H01L

CPC classification number: H01L21/7685 ,  H01L21/28052 ,  H01L21/28061 ,  H01L21/76838 ,  H01L21/76855 ,  H01L21/823828 ,  H01L21/823842 ,  H01L29/4941 ,  H01L29/51 ,  H01L29/517 ,  H01L29/518 ,  H01L29/78 ,  H01L2221/1078

Abstract: A conductive structure in an integrated circuit (12), and a method of forming the structure, is provided that includes a polysilicon layer (30), a thin layer containing titanium over the polysilicon, a tungsten nitride layer (34) over the titanium-containing layer and a tungsten layer over the tungsten nitride layer. The structure also includes a silicon nitride interfacial region (38) between the polysilicon layer and the titanium-containing layer. The structure withstands high-temperature processing without substantial formation of metal silicides in the polysilicon layer (30) and the tungsten layer (32), and provides low interface resistance between the tungsten layer and the polysilicon layer.

Abstract translation: 提供了集成电路（12）中的导电结构以及形成该结构的方法，该导电结构包括多晶硅层（30），在多晶硅上包含钛的薄层，在钛 - 氮化镓层上的氮化钨层（34） 在氮化钨层上形成含钨层和钨层。 该结构还包括在多晶硅层和含钛层之间的氮化硅界面区域（38）。 该结构耐受高温处理而在多晶硅层（30）和钨层（32）中基本上不形成金属硅化物，并且在钨层和多晶硅层之间提供低的界面电阻。

公开(公告)号：WO02056342A3

公开(公告)日：2004-01-08

申请号：PCT/US0149138

申请日：2001-12-19

Applicant: IBM ,  INFINEON TECHNOLOGIES CORP

Inventor： BOETTCHER STEVEN H ,  HO HERBERT L ,  HOINKIS MARK ,  LEE HYUN KOO ,  WANG YUN-YU ,  WONG KWONG HON

IPC: C23C16/34 ,  H01L21/3205 ,  H01L21/768 ,  H01L23/52 ,  H01L23/532 ,  H01L21/44 ,  H01L21/4763

CPC classification number: H01L21/76846 ,  H01L21/76858 ,  H01L21/76886 ,  H01L23/53238 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01L2924/00

Abstract: In integrated circuits having copper interconnect and low-k interlayer dielectrics, a problem of open circuits after heat treatment was discovered and solved by the use of a first liner layer (42) of Ti, followed by a conformal liner layer (46) of CVD TiN, followed in turn by a final liner layer (48) of TA or TaN, thus improving adhesion between the via and the underlying copper layer while reducing the increase in resistance caused by alloying between the Ti and the copper to an acceptable amount.

Abstract translation: 在具有铜互连和低k层间电介质的集成电路中，通过使用Ti的第一衬垫层（42），然后使用CVD的保形衬垫层（46），发现并解决了热处理后的开路问题 TiN，然后是TA或TaN的最终衬垫层（48），从而改善通孔和下面的铜层之间的粘附性，同时将由Ti和铜之间的合金化引起的电阻增加减少到可接受的量。

公开(公告)号：DE102004017411B4

公开(公告)日：2010-01-07

申请号：DE102004017411

申请日：2004-04-08

Applicant: INFINEON TECHNOLOGIES AG ,  IBM ,  UNITED MICROELECTRONICS CO

Inventor： COWLEY ANDY ,  FANG SUNFEI ,  WANG YUN-YU ,  CLEVENGER LARRY ,  SIMON ANDREW H ,  GRECO STEPHEN ,  CHANDA KAUSHIK ,  SPOONER TERRY ,  YANG CHIH-CHAO

IPC: H01L21/285 ,  H01L21/768

公开(公告)号：DE60141254D1

公开(公告)日：2010-03-25

申请号：DE60141254

申请日：2001-12-19

Applicant: INFINEON TECHNOLOGIES CORP ,  IBM

Inventor： BOETTCHER STEVEN H ,  HO HERBERT L ,  HOINKIS MARK ,  LEE HYUN KOO ,  WANG YUN-YU ,  WONG KWONG HON

IPC: C23C16/34 ,  H01L21/3205 ,  H01L21/44 ,  H01L21/768 ,  H01L23/52 ,  H01L23/532

Abstract: In integrated circuits having copper interconnect and low-k interlayer dielectrics, a problem of open circuits after heat treatment was discovered and solved by the use of a first liner layer of Ti, followed by a conformal liner layer of CVD TiN, followed in turn by a final liner layer of Ta or TaN, thus improving adhesion between the via and the underlying copper layer while reducing the increase in resistance caused by alloying between the Ti and the Copper to an acceptable amount.

公开(公告)号：DE60332865D1

公开(公告)日：2010-07-15

申请号：DE60332865

申请日：2003-12-08

Applicant: IBM

Inventor： CLEVENGER LARRY ,  DALTON TIMOTHY ,  HOINKIS MARK ,  KALDOR STEFFEN ,  KUMAR KAUSHIK ,  LA TULIPE DOUGLAS JR ,  SEO SOON-CHEON ,  SIMON ANDREW ,  WANG YUN-YU ,  YANG CHIH-CHAO ,  YANG HAINING

IPC: H01L21/768

公开(公告)号：AT470237T

公开(公告)日：2010-06-15

申请号：AT03796085

申请日：2003-12-08

Applicant: IBM

Inventor： CLEVENGER LARRY ,  DALTON TIMOTHY ,  HOINKIS MARK ,  KALDOR STEFFEN ,  KUMAR KAUSHIK ,  LA TULIPE DOUGLAS ,  SEO SOON-CHEON ,  SIMON ANDREW ,  WANG YUN-YU ,  YANG CHIH-CHAO ,  YANG HAINING

IPC: H01L21/768

Abstract: Disclosed is a method for depositing a metal layer on an interconnect structure for a semiconductor wafer. In the method, a metal conductor is covered by a capping layer and a dielectric layer. The dielectric layer is patterned so as to expose the capping layer. The capping layer is then sputter etched to remove the capping layer and expose the metal conductor. In the process of sputter etching, the capping layer is redeposited onto the sidewall of the pattern. Lastly, at least one layer is deposited into the pattern and covers the redeposited capping layer.

公开(公告)号：DE60122872T2

公开(公告)日：2007-04-19

申请号：DE60122872

申请日：2001-05-02

Applicant: QIMONDA AG ,  IBM

Inventor： WANG YUN-YU ,  JAMMY RAJARAO ,  KIMBALL J ,  KOTECKI E ,  LIAN JENNY ,  LIN CHENTING ,  MILLER A ,  NAGEL NICOLAS ,  SHEN HUA ,  WILDMAN S

IPC: H01L21/02 ,  H01L27/108 ,  H01L21/8242

Abstract: A capacitor structure that comprises a top platinum electrode and a bottom electrode having insulator on the sidewalls of the electrodes, and wherein the bottom electrode is from depositing a first electrode portion being recessed with respect to the insulator on the sidewalls thereof and depositing a second insulator portion is provided.

公开(公告)号：AU2003273328A8

公开(公告)日：2004-04-08

申请号：AU2003273328

申请日：2003-09-16

Applicant: IBM ,  INFINEON TECHNOLOGIES AG

Inventor： CLEVENGER LARRY ,  GLUSCHENKOV OLEG ,  CABRAL CYRIL JR ,  IGGULDEN ROY C ,  WANG YUN-YU ,  WONG KWONG HON ,  MCSTAY IRENE ,  SCHUTZ RONALD J ,  ROBL WERNER ,  MALIK RAJEEV

IPC: H01L20060101 ,  H01L21/28 ,  H01L21/3205 ,  H01L21/336 ,  H01L21/4763 ,  H01L21/768 ,  H01L23/522 ,  H01L29/40 ,  H01L29/51 ,  H01L29/78

Abstract: A conductive structure in an integrated circuit ( 12 ), and a method of forming the structure, is provided that includes a polysilicon layer ( 30 ), a thin layer containing titanium over the polysilicon, a tungsten nitride layer ( 34 ) over the titanium-containing layer and a tungsten layer over the tungsten nitride layer. The structure also includes a silicon nitride interfacial region ( 38 ) between the polysilicon layer and the titanium-containing layer. The structure withstands high-temperature processing without substantial formation of metal silicides in the polysilicon layer ( 30 ) and the tungsten layer ( 32 ), and provides low interface resistance between the tungsten layer and the polysilicon layer.

公开(公告)号：DE60122872D1

公开(公告)日：2006-10-19

申请号：DE60122872

申请日：2001-05-02

Applicant: IBM ,  INFINEON TECHNOLOGIES AG

Inventor： WANG YUN-YU ,  JAMMY RAJARAO ,  KIMBALL J ,  KOTECKI E ,  LIAN JENNY ,  LIN CHENTING ,  MILLER A ,  NAGEL NICOLAS ,  SHEN HUA ,  WILDMAN S

IPC: H01L21/02 ,  H01L27/108 ,  H01L21/8242

Abstract: A capacitor structure that comprises a top platinum electrode and a bottom electrode having insulator on the sidewalls of the electrodes, and wherein the bottom electrode is from depositing a first electrode portion being recessed with respect to the insulator on the sidewalls thereof and depositing a second insulator portion is provided.