公开(公告)号：US6444548B2

公开(公告)日：2002-09-03

申请号：US25781799

申请日：1999-02-25

Applicant: IBM

Inventor： DIVAKARUNI RAMACHANDRA ,  LI YUJUN ,  MANDELMAN JACK A

IPC: H01L29/78 ,  H01L21/265 ,  H01L21/336 ,  H01L21/8242 ,  H01L27/00 ,  H01L27/108 ,  H01L21/22 ,  H01L21/38 ,  H01L21/425 ,  H01L29/76 ,  H01L29/94 ,  H01L31/119

CPC classification number: H01L27/10861 ,  H01L21/26586 ,  H01L27/10888 ,  H01L29/66492

Abstract: A integrated circuit device and method for manufacturing an integrated circuit device includes forming a patterned gate stack, adjacent a storage device, to include a storage node diffusion region adjacent the storage device and a bitline contact diffusion region opposite the storage node diffusion region, implanting an impurity in the storage node diffusion region and the bitline contact diffusion region, forming an insulator layer over the patterned gate stack, removing a portion of the insulator layer from the bitline contact diffusion region to form sidewall spacers along a portion of the patterned gate stack adjacent the bitline contact diffusion region, implanting a halo implant into the bitline contact diffusion region, wherein the insulator layer is free from blocking the halo implant from the second diffusion region and annealing the integrated circuit device to drive the halo implant ahead of the impurity.

Abstract translation: 一种用于制造集成电路器件的集成电路器件和方法，包括形成与存储器件相邻的图案化栅叠层，以包括与存储器件相邻的存储节点扩散区域和与存储节点扩散区域相对的位线接触扩散区域， 在存储节点扩散区域和位线接触扩散区域中形成杂质，在图案化的栅极堆叠上形成绝缘体层，从位线接触扩散区域去除绝缘体层的一部分，以沿着图案化的栅极叠层的一部分相邻形成侧壁间隔物 所述位线接触扩散区域将卤素注入物注入到所述位线接触扩散区域中，其中所述绝缘体层不从所述第二扩散区域阻挡所述卤素注入并退火所述集成电路器件以在所述杂质之前驱动所述卤素注入。

公开(公告)号：WO2007137946A3

公开(公告)日：2008-03-13

申请号：PCT/EP2007054769

申请日：2007-05-16

Applicant: IBM ,  IBM UK ,  CHENG KANGGUO ,  DIVAKARUNI RAMACHANDRA

Inventor： CHENG KANGGUO ,  DIVAKARUNI RAMACHANDRA

IPC: H01L29/94 ,  H01L21/334

CPC classification number: H01L29/945 ,  H01L29/66181

Abstract: A semiconductor fabrication method comprises steps of providing a semiconductor structure. The semiconductor structure includes a semiconductor substrate, a trench in the semiconductor substrate. The trench comprises a side wall which includes {100} side wall surfaces and {110} side wall surfaces. The semiconductor structure further includes a blocking layer on the {100} side wall surfaces and the {110} side wall surfaces. The method further comprises the steps of removing portions of the blocking layer on the {110} side wall surfaces without removing portions of the blocking layer on the {100} side wall surfaces such that the {110} side wall surfaces are exposed to a surrounding ambient.

Abstract translation: 半导体制造方法包括提供半导体结构的步骤。 半导体结构包括半导体衬底，半导体衬底中的沟槽。 沟槽包括侧壁，其包括{100}侧壁表面和{110}侧壁表面。 半导体结构还包括在{100}侧壁表面和{110}侧壁表面上的阻挡层。 该方法还包括以下步骤：除去{110}侧壁表面上的阻挡层的部分，而不去除{100}侧壁表面上的阻挡层的部分，使得{110}侧壁表面暴露于周围 周围。

公开(公告)号：EP2008300A4

公开(公告)日：2012-05-23

申请号：EP07758889

申请日：2007-03-20

Applicant: IBM

Inventor： DIVAKARUNI RAMACHANDRA ,  CHENG KANGGUO

IPC: H01L21/44 ,  C01B32/50 ,  H01L21/00 ,  H01L21/84 ,  H01L27/108 ,  H01L29/78

CPC classification number: H01L29/7827 ,  H01L21/84 ,  H01L27/0207 ,  H01L27/10841 ,  H01L27/10876 ,  H01L29/66666 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A structure and method of forming a body contact for a semiconductor-on-insulator trench device. The method including: forming set of mandrels on a top surface of a substrate, each mandrel of the set of mandrels arranged on a different corner of a polygon and extending above the top surface of the substrate, a number of mandrels in the set of mandrels equal to a number of corners of the polygon; forming sidewall spacers on sidewalls of each mandrel of the set of mandrels, sidewalls spacers of each adjacent pair of mandrels merging with each other and forming a unbroken wall defining an opening in an interior region of the polygon, a region of the substrate exposed in the opening; etching a contact trench in the substrate in the opening; and filling the contact trench with an electrically conductive material to form the contact.

公开(公告)号：EP1977425A4

公开(公告)日：2009-04-29

申请号：EP07710032

申请日：2007-01-10

Applicant: IBM

Inventor： CHENG KANGGUO ,  DIVAKARUNI RAMACHANDRA ,  MANDELMAN JACK A ,  RADENS CARL J ,  WANG GENG

IPC: G11C11/24 ,  H01L21/8242

CPC classification number: G11C8/16 ,  G11C11/405 ,  G11C11/4097 ,  H01L27/0207 ,  H01L27/108 ,  H01L27/10861

Abstract: An integrated circuit is provided which includes a memory having multiple ports per memory cell for accessing a data bit within each of a plurality of the memory cells. Such memory includes an array of memory cells in which each memory cell includes a plurality of capacitors (102) connected together as a unitary source of capacitance. A first access transistor (104) is coupled between a first one of the plurality of capacitors and a first bitline and a second access transistor (106) is coupled between a second one of the plurality of capacitors and a second bitline. In each memory cell, a gate of the first access transistor is connected to a first wordline and a gate of the second access transistor is connected to a second wordline.

公开(公告)号：JP2002026148A

公开(公告)日：2002-01-25

申请号：JP2001189096

申请日：2001-06-22

Applicant: IBM

Inventor： MANDELMAN JACK A ,  DIVAKARUNI RAMACHANDRA ,  RADENS CARL J ,  GRUENING ULRIKE ,  SUDO AKIRA

IPC: H01L27/108 ,  H01L21/8242

Abstract: PROBLEM TO BE SOLVED: To provide a new deep trench(DT) collar process which reduces disturbance of strap diffusion to an array metal oxide semiconductor field effect transistor(MOSFET) of a semiconductor device. SOLUTION: By this method, an oxidation barrier layer is formed on a sidewall of the DT provided in the semiconductor substrate, a photoresist layer of specific depth is provided in the trench to remove the oxidation barrier layer to specific depth and expose the trench sidewall, and the remaining photoresist is removed. A layer of a silicon material is stuck on the exposed trench sidewall, and a dielectric layer is formed on the silicon material layer to form a collar. The remaining oxidation barrier layer is removed from the trench and polysilicon which forms a storage node is charged. Consequently, the distance between a MOSFET gate and a DT storage capacitor is maximized, and the effective edge bias of the DT at its peak is reducible without spoiling the storage capacity.

公开(公告)号：JP2004064092A

公开(公告)日：2004-02-26

申请号：JP2003280459

申请日：2003-07-25

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： DIVAKARUNI RAMACHANDRA ,  MANDELMAN JACK A

IPC: H01L21/8242 ,  H01L21/38 ,  H01L27/108 ,  H01L27/12

CPC classification number: H01L27/10897 ,  H01L27/10864 ,  H01L27/1203

Abstract: PROBLEM TO BE SOLVED: To provide a silicon-on-insulator (SOI) method with a pattern for manufacturing a composite integrated circuit having both of a logic circuit part and a buried dynamic random access memory (DRAM) array part.
SOLUTION: The method includes a step to form a buried oxide layer BOX at the logic circuit part 18 of a substrate, which is not masked by a first mask, by injecting oxygen and a step to apply etching to isolation trenches inside the array part 17 and the logic circuit part 18 by a second mask. The first mask can additionally protect the array part 17 when the corners of the device inside the logic circuit part 18 are rounded. The second mask can additionally protect the logic circuit part 18 when the injection inside the array part 17 is executed. A DRAM cell is formed on a bulk part of the substrate in a state of including at least one SOI device having the round corners and at least one DRAM cell having a vertical path gate.
COPYRIGHT: (C)2004,JPO

公开(公告)号：WO2007023011B1

公开(公告)日：2007-07-12

申请号：PCT/EP2006063581

申请日：2006-06-27

Applicant: IBM ,  IBM UK ,  MANDELMAN JACK ,  CHENG KANGGUO ,  DIVAKARUNI RAMACHANDRA ,  RADENS CARL ,  WANG GENG

Inventor： MANDELMAN JACK ,  CHENG KANGGUO ,  DIVAKARUNI RAMACHANDRA ,  RADENS CARL ,  WANG GENG

IPC: H01L27/108 ,  H01L21/8242

CPC classification number: H01L27/108 ,  H01L27/10829 ,  H01L27/10867 ,  H01L27/1203

Abstract: A DRAM memory cell and process sequence for fabricating a dense (20 or 18 square) layout is fabricated with silicon-on-insulator (SOI) CMOS technology. Specifically, the present invention provides a dense, high-performance SRAM cell replacement that is compatible with existing SOI CMOS technologies. Various gain cell layouts are known in the art. The present invention improves on the state of the art by providing a dense layout that is fabricated with SOI CMOS. In general terms, the memory cell includes a first transistor provided with a gate, a source, and a drain respectively; a second transistor having a first gate, a second gate, a source, and a drain respectively; and a capacitor having a first terminal, wherein the first terminal of said capacitor and the second gate of said second transistor comprise a single entity.

Abstract translation: 使用绝缘体上硅（SOI）CMOS技术制造用于制造致密（20或18平方）布局的DRAM存储单元和工艺顺序。 具体地，本发明提供了与现有SOI CMOS技术兼容的致密的高性能SRAM单元替换。 各种增益单元布局在本领域中是已知的。 本发明通过提供利用SOI CMOS制造的致密布局来改善现有技术的状态。 通常，存储单元包括分别设置有栅极，源极和漏极的第一晶体管; 分别具有第一栅极，第二栅极，源极和漏极的第二晶体管; 以及具有第一端子的电容器，其中所述电容器的第一端子和所述第二晶体管的第二栅极包括单个实体。

公开(公告)号：WO2007023011A2

公开(公告)日：2007-03-01

申请号：PCT/EP2006063581

申请日：2006-06-27

Applicant: IBM ,  IBM UK ,  MANDELMAN JACK ,  CHENG KANGGUO ,  DIVAKARUNI RAMACHANDRA ,  RADENS CARL ,  WANG GENG

Inventor： MANDELMAN JACK ,  CHENG KANGGUO ,  DIVAKARUNI RAMACHANDRA ,  RADENS CARL ,  WANG GENG

IPC: H01L27/108 ,  H01L21/8242 ,  H01L27/12

CPC classification number: H01L27/108 ,  H01L27/10829 ,  H01L27/10867 ,  H01L27/1203

Abstract: A DRAM memory cell and process sequence for fabricating a dense (20 or 18 square) layout is fabricated with silicon-on-insulator (SOI) CMOS technology. Specifically, the present invention provides a dense, high-performance SRAM cell replacement that is compatible with existing SOI CMOS technologies. Various gain cell layouts are known in the art. The present invention improves on the state of the art by providing a dense layout that is fabricated with SOI CMOS. In general terms, the memory cell includes a first transistor provided with a gate, a source, and a drain respectively; a second transistor having a first gate, a second gate, a source, and a drain respectively; and a capacitor having a first terminal, wherein the first terminal of said capacitor and the second gate of said second transistor comprise a single entity.

Abstract translation: 用绝缘体上硅（SOI）CMOS技术制造用于制造致密（20或18平方）布局的DRAM存储器单元和工艺序列。 具体而言，本发明提供了与现有SOI CMOS技术兼容的密集，高性能SRAM单元替换。 本领域已知各种增益单元布局。 本发明通过提供用SOI CMOS制造的密集布局来改进现有技术。 一般而言，存储器单元包括分别设置有栅极，源极和漏极的第一晶体管; 第二晶体管，分别具有第一栅极，第二栅极，源极和漏极; 以及具有第一端子的电容器，其中所述电容器的第一端子和所述第二晶体管的第二栅极包括单个实体。

公开(公告)号：WO03005447A8

公开(公告)日：2004-02-19

申请号：PCT/GB0202961

申请日：2002-06-27

Applicant: IBM ,  IBM UK ,  INFINEON TECHNOLOGIES AG

Inventor： DIVAKARUNI RAMACHANDRA ,  GRUENING ULRIKE ,  MANDELMAN JACK ,  NESBIT LARRY ,  RADENS CARL

IPC: H01L21/8234 ,  H01L21/8242 ,  H01L27/088 ,  H01L27/108

CPC classification number: H01L27/10891 ,  H01L27/10864 ,  H01L27/10876 ,  H01L27/10894

Abstract: A structure and process for fabricating embedded vertical DRAM cells includes fabricating vertical MOSFET DRAM cells with silicided polysilicon layers in the array regions, the landing pad and/or interconnect structures, the support source and drain regions and/or the gate stack. The process eliminates the need for a M0 metallization layer.

Abstract translation: 用于制造嵌入式垂直DRAM单元的结构和工艺包括在阵列区域中制造具有硅化多晶硅层的垂直MOSFET DRAM单元，着陆焊盘和/或互连结构，支撑源极和漏极区域和/或栅极堆叠。 该工艺消除了对M0金属化层的需要。

公开(公告)号：WO03005447A2

公开(公告)日：2003-01-16

申请号：PCT/GB0202961

申请日：2002-06-27

Applicant: IBM ,  IBM UK ,  INFINEON TECHNOLOGIES AG

Inventor： DIVAKARUNI RAMACHANDRA ,  GRUENING ULRIKE ,  MANDELMAN JACK ,  NESBIT LARRY ,  RADENS CARL

IPC: H01L21/8234 ,  H01L21/8242 ,  H01L27/088 ,  H01L27/108

CPC classification number: H01L27/10891 ,  H01L27/10864 ,  H01L27/10876 ,  H01L27/10894

Abstract: A structure and process for fabricating embedded vertical DRAM cells includes fabricating vertical MOSFET DRAM cells with silicided polysilicon layers in the array regions, the landing pad and/or interconnect structures, the support source and drain regions and/or the gate stack. The process eliminates the need for a M0 metallization layer.

Abstract translation: 用于制造嵌入式垂直DRAM单元的结构和工艺包括在阵列区域，连接焊盘和/或互连结构，支撑源极和漏极区域和/或栅极堆叠中制造具有硅化多晶硅层的垂直MOSFET DRAM单元。 该工艺消除了对M0金属化层的需求。