Semiconductor memory element and semiconductor memory device

Invention Grant

US08390054B2 Semiconductor memory element and semiconductor memory device 有权

Title translation: 半导体存储元件和半导体存储器件

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Patent Title: Semiconductor memory element and semiconductor memory device
Patent Title (中): 半导体存储元件和半导体存储器件
Application No.: US12880748

Application Date: 2010-09-13
Publication No.: US08390054B2

Publication Date: 2013-03-05
Inventor: Tsunehiro Ino , Daisuke Matsushita , Yasushi Nakasaki , Masao Shingu
Applicant: Tsunehiro Ino , Daisuke Matsushita , Yasushi Nakasaki , Masao Shingu
Applicant Address: JP Tokyo
Assignee: Kabushiki Kaisha Toshiba
Current Assignee: Kabushiki Kaisha Toshiba
Current Assignee Address: JP Tokyo
Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Priority: JPP2010-084332 20100331
Main IPC: H01L29/788
IPC: H01L29/788 ; H01L29/792

Semiconductor memory element and semiconductor memory device

Abstract:

According to one embodiment, a semiconductor memory element includes a semiconductor layer, a tunnel insulator provided on the semiconductor layer, a charge accumulation film provided on the tunnel insulator having a film thickness of 0.9 nm or more and 2.8 nm or less and the charge accumulation film containing cubic HfO2 particles, a block insulator provided on the charge accumulation film, and a control electrode provided on the block insulator.

Abstract(Chinese):

根据一个实施例，半导体存储元件包括半导体层，设置在半导体层上的隧道绝缘体，设置在隧道绝缘体上的电荷累积膜，其膜厚度为0.9nm以上且2.8nm以下，电荷积累含有立方HfO 2颗粒的膜，设置在电荷累积膜上的块绝缘体，以及设置在块绝缘体上的控制电极。

Public/Granted literature

US20110241101A1 SEMICONDUCTOR MEMORY ELEMENT AND SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2011-10-06

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
H01L29/78	.....由绝缘栅产生场效应的
H01L29/788	......带有浮栅的