Vertical ferroelectric field effect transistor constructions, constructions comprising a pair of vertical ferroelectric field effect transistors, vertical strings of ferroelectric field effect transistors, and vertical strings of laterally opposing pairs of vertical ferroelectric field effect transistors

Invention Grant

US10297612B2 Vertical ferroelectric field effect transistor constructions, constructions comprising a pair of vertical ferroelectric field effect transistors, vertical strings of ferroelectric field effect transistors, and vertical strings of laterally opposing pairs of vertical ferroelectric field effect transistors 有权

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Patent Title: Vertical ferroelectric field effect transistor constructions, constructions comprising a pair of vertical ferroelectric field effect transistors, vertical strings of ferroelectric field effect transistors, and vertical strings of laterally opposing pairs of vertical ferroelectric field effect transistors
Application No.: US16020712

Application Date: 2018-06-27
Publication No.: US10297612B2

Publication Date: 2019-05-21
Inventor: Kamal M. Karda , Chandra Mouli , Gurtej S. Sandhu
Applicant: Micron Technology, Inc.
Applicant Address: US ID Boise
Assignee: Micron Technology, Inc.
Current Assignee: Micron Technology, Inc.
Current Assignee Address: US ID Boise
Agency: Wells St. John P.S.
Main IPC: H01L27/11597
IPC: H01L27/11597 ; H01L27/1159 ; H01L27/11585 ; H01L21/02 ; H01L21/28 ; H01L29/51 ; H01L29/66 ; H01L29/06 ; H01L29/10 ; H01L29/24 ; H01L29/78 ; H01L29/786 ; H01L29/423 ; H01L29/49 ; H01L27/1157 ; H01L27/11582 ; H01L27/11578 ; H01L27/11514 ; G11C11/22

Vertical ferroelectric field effect transistor constructions, constructions comprising a pair of vertical ferroelectric field effect transistors, vertical strings of ferroelectric field effect transistors, and vertical strings of laterally opposing pairs of vertical ferroelectric field effect transistors

Abstract:

A vertical ferroelectric field effect transistor construction comprises an isolating core. A transition metal dichalcogenide material encircles the isolating core and has a lateral wall thickness of 1 monolayer to 7 monolayers. A ferroelectric gate dielectric material encircles the transition metal dichalcogenide material. Conductive gate material encircles the ferroelectric gate dielectric material. The transition metal dichalcogenide material extends elevationally inward and elevationally outward of the conductive gate material. A conductive contact is directly against a lateral outer sidewall of the transition metal dichalcogenide material that is a) elevationally inward of the conductive gate material, or b) elevationally outward of the conductive gate material. Additional embodiments are disclosed.

Public/Granted literature

US20180323214A1 Vertical Ferroelectric Field Effect Transistor Constructions, Constructions Comprising A Pair Of Vertical Ferroelectric Field Effect Transistors, Vertical Strings Of Ferroelectric Field Effect Transistors, And Vertical Strings Of Laterally Opposing Pairs Of Vertical Ferroelectric Field Effect Transistors Public/Granted day:2018-11-08

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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）
H01L27/00	由在一个共用衬底内或其上形成的多个半导体或其他固态组件组成的器件（其零部件入H01L23/00，H01L29/00至H01L51/00；由多个单个固态器件组成的组装件入H01L25/00）
H01L27/02	.包括有专门适用于整流、振荡、放大或切换的半导体组件并且至少有一个电位跃变势垒或者表面势垒的；包括至少有一个跃变势垒或者表面势垒的无源集成电路单元的
H01L27/04	..其衬底为半导体的
H01L27/10	...在重复结构中包括有多个独立组件的
H01L27/105	....包含场效应组件的
H01L27/112	.....只读存储器结构的
H01L27/115	...... · · · · ·电动编程只读存储器；其多步骤制造方法
H01L27/11585	....... · · · · · · 具有包括用于铁电存储器特性的层的栅电极，例如，MFS （金属-铁电体-半导体）或 MFMIS （金属-铁电体-金属-绝缘体-半导体）
H01L27/11597	........ · · · · · · ·以三维布置为特征的，例如，单元胞在不同的高度层