Dual high-k oxides with sige channel

Invention Grant

US08017469B2 Dual high-k oxides with sige channel 有权

Title translation: 双通道高K氧化物

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Patent Title: Dual high-k oxides with sige channel
Patent Title (中): 双通道高K氧化物
Application No.: US12357057

Application Date: 2009-01-21
Publication No.: US08017469B2

Publication Date: 2011-09-13
Inventor: Tien-Ying Luo , Gauri V. Karve , Daniel G. Tekleab
Applicant: Tien-Ying Luo , Gauri V. Karve , Daniel G. Tekleab
Applicant Address: US TX Austin
Assignee: Freescale Semiconductor, Inc.
Current Assignee: Freescale Semiconductor, Inc.
Current Assignee Address: US TX Austin
Agency: Hamilton & Terrile, LLP
Agent Michael Rocco Cannatti
Main IPC: H01L21/8238
IPC: H01L21/8238

Abstract:

A method and apparatus are described for integrating dual gate oxide (DGO) transistor devices (50, 52) and core transistor devices (51, 53) on a single substrate (15) having a silicon germanium channel layer (21) in the PMOS device areas (112, 113), where each DGO transistor device (50, 52) includes a metal gate (25), an upper gate oxide region (60, 84) formed from a second, relatively higher high-k metal oxide layer (24), and a lower gate oxide region (58, 84) formed from a first relatively lower high-k layer (22), and where each core transistor device (51, 53) includes a metal gate (25) and a core gate dielectric layer (72, 98) formed from only the second, relatively higher high-k metal oxide layer (24).

Abstract(Chinese):

描述了用于在PMOS器件中具有硅锗沟道层（21）的单个衬底（15）上集成双栅极氧化物（DGO）晶体管器件（50,52）和核心晶体管器件（51,53）的方法和装置区域（112,113），其中每个DGO晶体管器件（50,52）包括金属栅极（25），由第二相对较高的高k金属氧化物层（24）形成的上部栅极氧化物区域（60,84））和由第一相对较低的高k层（22）形成的下栅极氧化物区域（58,84），并且其中每个核心晶体管器件（51,53）包括金属栅极（25）和芯栅极电介质仅由第二相对较高的高k金属氧化物层（24）形成的层（72,98）。

Public/Granted literature

US20100184260A1 DUAL HIGH-K OXIDES WITH SIGE CHANNEL Public/Granted day:2010-07-22

Information query

Espacenet

IPC分类:

H	电学
H01	基本电气元件
H01L	半导体器件；其他类目中不包括的电固体器件（使用半导体器件的测量入G01；一般电阻器入H01C；磁体、电感器、变压器入H01F；一般电容器入H01G；电解型器件入H01G9/00；电池组、蓄电池入H01M；波导管、谐振器或波导型线路入H01P；线路连接器、汇流器入H01R；受激发射器件入H01S；机电谐振器入H03H；扬声器、送话器、留声机拾音器或类似的声机电传感器入H04R；一般电光源入H05B；印刷电路、混合电路、电设备的外壳或结构零部件、电气元件的组件的制造入H05K；在具有特殊应用的电路中使用的半导体器件见应用相关的小类）
H01L21/00	专门适用于制造或处理半导体或固体器件或其部件的方法或设备
H01L21/70	.由在一共用基片内或其上形成的多个固态组件或集成电路组成的器件或其部件的制造或处理；集成电路器件或其特殊部件的制造（由预制电组件组成的组装件的制造入H05K3/00，H05K13/00）
H01L21/77	..在公共衬底中或上面形成的由许多固态元件或集成电路组成的器件的制造或处理（电可编程只读存储器或其多步骤的制造方法入H01L27/115）
H01L21/78	...把衬底连续地分成多个独立的器件（改变表面物理特性或者半导体形状的切割入H01L21/304）
H01L21/82	....制造器件，例如每一个由许多元件组成的集成电路
H01L21/822	.....衬底是采用硅工艺的半导体的（H01L21/8258优先）
H01L21/8232	......场效应工艺
H01L21/8234	.......MIS工艺
H01L21/8238	........互补场效应晶体管，例如CMOS