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1. JPWO2017159810 - 電界効果型トランジスタ、表示素子、画像表示装置、及びシステム

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Japan
Application Number 2018506017
Application Date 16.03.2017
Publication Number WO2017159810
Publication Date 21.09.2017
Grant Number 6809527
Grant Date 14.12.2020
Publication Kind B2
IPC
H01L 29/786
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having at least one potential-jump barrier or surface barrier; Capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof
66Types of semiconductor device
68controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified, or switched
76Unipolar devices
772Field-effect transistors
78with field effect produced by an insulated gate
786Thin-film transistors
G02F 1/1368
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
1362Active matrix addressed cells
1368in which the switching element is a three-electrode device
G09F 9/30
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
H01L 27/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H01L 51/50
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
CPC
G09F 9/30
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
H05B 33/02
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
02Details
H05B 33/14
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
12Light sources with substantially two-dimensional radiating surfaces
14characterised by the chemical or physical composition or the arrangement of the electroluminescent material ; , or by the simultaneous addition of the electroluminescent material in or onto the light source
H01L 29/78696
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof; ; Multistep manufacturing processes therefor
66Types of semiconductor device ; ; Multistep manufacturing processes therefor
68controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
76Unipolar devices ; , e.g. field effect transistors
772Field effect transistors
78with field effect produced by an insulated gate
786Thin film transistors, ; i.e. transistors with a channel being at least partly a thin film
78696characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
H01L 27/1225
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
02including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
12the substrate being other than a semiconductor body, e.g. an insulating body
1214comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
1222with a particular composition, shape or crystalline structure of the active layer
1225with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
H01L 29/7869
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof; ; Multistep manufacturing processes therefor
66Types of semiconductor device ; ; Multistep manufacturing processes therefor
68controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
76Unipolar devices ; , e.g. field effect transistors
772Field effect transistors
78with field effect produced by an insulated gate
786Thin film transistors, ; i.e. transistors with a channel being at least partly a thin film
7869having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
Applicants 株式会社リコー
Inventors 植田　尚之
中村　有希
安部　由希子
松本　真二
曽根　雄司
早乙女　遼一
新江　定憲
草柳　嶺秀
Agents 廣田　浩一
Priority Data 2016055571 18.03.2016 JP
2016157920 10.08.2016 JP
Title
(JA) 電界効果型トランジスタ、表示素子、画像表示装置、及びシステム
Abstract
(JA)

ゲート電圧を印加するためのゲート電極と、
電気信号を伝達するためのソース電極及びドレイン電極と、
前記ソース電極及び前記ドレイン電極との間に形成された活性層と、
前記ゲート電極と前記活性層との間に形成されたゲート絶縁層と、を有する電界効果型トランジスタであって、
前記活性層が、少なくともＡ層とＢ層の２種類の酸化物層を含み、
前記活性層が、下記条件（１）及び（２）の少なくともいずれかを満たすことを特徴とする電界効果型トランジスタ。
条件（１）：前記活性層が、２層以上の前記Ａ層を含む３層以上の酸化物層から構成される。
条件（２）前記Ａ層のバンドギャップが、前記Ｂ層のバンドギャップより小さく、かつ前記Ａ層の酸素親和力が、前記Ｂ層の酸素親和力以上である。
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