Circuits and methods for improved FET matching

Invention Grant

US08134188B2 Circuits and methods for improved FET matching 有权

Title translation: 改进FET匹配的电路和方法

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Patent Title: Circuits and methods for improved FET matching
Patent Title (中): 改进FET匹配的电路和方法
Application No.: US11838546

Application Date: 2007-08-14
Publication No.: US08134188B2

Publication Date: 2012-03-13
Inventor: Kenneth G. Richardson , Michael Straub
Applicant: Kenneth G. Richardson , Michael Straub
Applicant Address: US PA Allentown
Assignee: AGERE Systems Inc.
Current Assignee: AGERE Systems Inc.
Current Assignee Address: US PA Allentown
Agency: Hamilton DeSanctis & Cha
Main IPC: H01L29/80
IPC: H01L29/80

Abstract:

Various embodiments of the present invention provide circuits and methods for improved FET matching. As one example, such methods may include providing two or more transistors. Each of the transistors includes a channel that varies in cross-sectional width from the source to the drain, and the transistors are matched one to another.

Abstract(Chinese):

本发明的各种实施例提供了用于改进FET匹配的电路和方法。作为一个示例，这样的方法可以包括提供两个或更多个晶体管。每个晶体管包括从源极到漏极的截面宽度变化的沟道，并且晶体管彼此匹配。

Public/Granted literature

US20080048267A1 Circuits and Methods for Improved FET Matching Public/Granted day:2008-02-28

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）
H01L29/00	专门适用于整流、放大、振荡或切换，并具有至少一个电位跃变势垒或表面势垒的半导体器件；具有至少一个电位跃变势垒或表面势垒，例如PN结耗尽层或载流子集结层的电容器或电阻器；半导体本体或其电极的零部件（H01L31/00至H01L47/00，H01L51/05优先；除半导体或其电极之外的零部件入H01L23/00；由在一个共用衬底内或其上形成的多个固态组件组成的器件入H01L27/00）
H01L29/66	.按半导体器件的类型区分的
H01L29/68	..只能通过对一个不通有待整流、放大或切换的电流的电极供给电流或施加电位方可进行控制的（H01L29/96优先）
H01L29/76	...单极器件
H01L29/772	....场效应晶体管
H01L29/80	.....由PN结或其他整流结栅产生场效应的