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1. EP3644363 - SEMICONDUCTOR DEVICE

官庁 欧州特許庁(EPO)
出願番号 19215868
出願日 26.11.2014
公開番号 3644363
公開日 29.04.2020
公報種別 A1
IPC
H01L 27/04
H電気
01基本的電気素子
L半導体装置,他に属さない電気的固体装置
271つの共通基板内または上に形成された複数の半導体構成部品または他の固体構成部品からなる装置
02整流,発振,増幅またはスイッチングに特に適用される半導体構成部品を含むものであり,少なくとも1つの電位障壁または表面障壁を有するもの;少なくとも1つの電位障壁または表面障壁を有する集積化された受動回路素子を含むもの
04基板が半導体本体であるもの
H01L 21/822
H電気
01基本的電気素子
L半導体装置,他に属さない電気的固体装置
21半導体装置または固体装置またはそれらの部品の製造または処理に特に適用される方法または装置
701つの共通基板内または上に形成された複数の固体構成部品または集積回路からなる装置またはその特定部品の製造または処理;集積回路装置またはその特定部品の製造
771つの共通基板内または上に形成される複数の固体構成部品または集積回路からなる装置の製造または処理
78複数の別個の装置に基板を分割することによるもの
82それぞれが複数の構成部品からなる装置,例.集積回路の製造
822基板がシリコン技術を用いる半導体であるもの
H01L 29/12
H電気
01基本的電気素子
L半導体装置,他に属さない電気的固体装置
29整流,増幅,発振またはスイッチングに特に適用される半導体装置であり,少なくとも1つの電位障壁または表面障壁を有するもの;少なくとも1つの電位障壁または表面障壁,例.PN接合空乏層またはキャリア集中層,を有するコンデンサーまたは抵抗器;半導体本体または電極の細部
02半導体本体
12構成材料に特徴のあるもの
H01L 29/739
H電気
01基本的電気素子
L半導体装置,他に属さない電気的固体装置
29整流,増幅,発振またはスイッチングに特に適用される半導体装置であり,少なくとも1つの電位障壁または表面障壁を有するもの;少なくとも1つの電位障壁または表面障壁,例.PN接合空乏層またはキャリア集中層,を有するコンデンサーまたは抵抗器;半導体本体または電極の細部
66半導体装置の型
68整流,増幅またはスイッチされる電流を流さない電極に電流のみまたは電位のみを与えることにより制御できるもの
70バイポーラ装置
72トランジスタ型装置,すなわち,供給される制御信号に連続的に応答できるもの
739電界効果により制御されるもの
H01L 29/78
H電気
01基本的電気素子
L半導体装置,他に属さない電気的固体装置
29整流,増幅,発振またはスイッチングに特に適用される半導体装置であり,少なくとも1つの電位障壁または表面障壁を有するもの;少なくとも1つの電位障壁または表面障壁,例.PN接合空乏層またはキャリア集中層,を有するコンデンサーまたは抵抗器;半導体本体または電極の細部
66半導体装置の型
68整流,増幅またはスイッチされる電流を流さない電極に電流のみまたは電位のみを与えることにより制御できるもの
76ユニポーラ装置
772電界効果トランジスタ
78絶縁ゲートによって生じる電界効果を有するもの
CPC
H01L 29/0615
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
02Semiconductor bodies ; ; Multistep manufacturing processes therefor
06characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; ; characterised by the concentration or distribution of impurities within semiconductor regions
0603characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
0607for preventing surface leakage or controlling electric field concentration
0611for increasing or controlling the breakdown voltage of reverse biased devices
0615by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
H01L 29/0696
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
02Semiconductor bodies ; ; Multistep manufacturing processes therefor
06characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; ; characterised by the concentration or distribution of impurities within semiconductor regions
0684characterised by the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
0692Surface layout
0696of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
H01L 29/1095
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
02Semiconductor bodies ; ; Multistep manufacturing processes therefor
06characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; ; characterised by the concentration or distribution of impurities within semiconductor regions
10with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
1095Body region, i.e. base region, of DMOS transistors or IGBTs
H01L 29/1608
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
02Semiconductor bodies ; ; Multistep manufacturing processes therefor
12characterised by the materials of which they are formed
16including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System
1608Silicon carbide
H01L 29/42372
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
40Electrodes ; ; Multistep manufacturing processes therefor
41characterised by their shape, relative sizes or dispositions
423not carrying the current to be rectified, amplified or switched
42312Gate electrodes for field effect devices
42316for field-effect transistors
4232with insulated gate
42372characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
H01L 29/4238
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
40Electrodes ; ; Multistep manufacturing processes therefor
41characterised by their shape, relative sizes or dispositions
423not carrying the current to be rectified, amplified or switched
42312Gate electrodes for field effect devices
42316for field-effect transistors
4232with insulated gate
42372characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
4238characterised by the surface lay-out
出願人 ROHM CO LTD
発明者 NAGAO KATSUHISA
KAWAMOTO NORIAKI
指定国 (国コード)
優先権情報 14865393 26.11.2014 EP
2013246474 28.11.2013 JP
2014081273 26.11.2014 JP
発明の名称
(DE) HALBLEITERBAUELEMENT
(EN) SEMICONDUCTOR DEVICE
(FR) DISPOSITIF À SEMICONDUCTEUR
要約
(EN)
A semiconductor device (1) is manufactured which includes a SiC epitaxial layer (28), a plurality of transistor cells (18) that are formed in the SiC epitaxial layer (28) and that are subjected to ON/OFF control by a predetermined control voltage, a gate electrode (19) that faces a channel region (32) of the transistor cells (18) in which a channel is formed when the semiconductor device (1) is in an ON state, a gate metal (44) that is exposed at the topmost surface for electrical connection with the outside and that is electrically connected to the gate electrode (19) while being physically separated from the gate electrode (19), and a built-in resistor (21) that is made of polysilicon and that is disposed below the gate metal (44) so as to electrically connect the gate metal (44) and the gate electrode (19) together.