JP5361861B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP5361861B2 JP5361861B2 JP2010503845A JP2010503845A JP5361861B2 JP 5361861 B2 JP5361861 B2 JP 5361861B2 JP 2010503845 A JP2010503845 A JP 2010503845A JP 2010503845 A JP2010503845 A JP 2010503845A JP 5361861 B2 JP5361861 B2 JP 5361861B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- jte
- semiconductor device
- electrode
- type semiconductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 178
- 239000012535 impurity Substances 0.000 claims abstract description 32
- 230000015556 catabolic process Effects 0.000 abstract description 18
- 239000000758 substrate Substances 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 description 40
- 230000004048 modification Effects 0.000 description 26
- 238000012986 modification Methods 0.000 description 26
- 230000000694 effects Effects 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000002040 relaxant effect Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/0445—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising crystalline silicon carbide
- H01L21/048—Making electrodes
- H01L21/0495—Schottky electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/02—Bonding areas ; Manufacturing methods related thereto
- H01L24/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L24/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised 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
- H01L29/0603—Semiconductor bodies ; Multistep manufacturing processes therefor characterised 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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0607—Semiconductor bodies ; Multistep manufacturing processes therefor characterised 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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration
- H01L29/0611—Semiconductor bodies ; Multistep manufacturing processes therefor characterised 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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices
- H01L29/0615—Semiconductor bodies ; Multistep manufacturing processes therefor characterised 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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
- H01L29/0619—Semiconductor bodies ; Multistep manufacturing processes therefor characterised 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 characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
- H01L29/1608—Silicon carbide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66053—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide
- H01L29/6606—Multistep manufacturing processes of devices having a semiconductor body comprising crystalline silicon carbide the devices being controllable only by variation of the electric current supplied or the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. two-terminal devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable 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
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/80—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier
- H01L29/808—Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier with a PN junction gate, e.g. PN homojunction gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
- H01L29/872—Schottky diodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/12—Passive devices, e.g. 2 terminal devices
- H01L2924/1203—Rectifying Diode
- H01L2924/12032—Schottky diode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1306—Field-effect transistor [FET]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1306—Field-effect transistor [FET]
- H01L2924/13091—Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes Of Semiconductors (AREA)
Description
本実施の形態に於いては、本発明に係る半導体装置の一例として、ショットキーバリアダイオードの構造及びその製造方法について記載する。
図4は、実施の形態1(図2)の変形例1に係る半導体装置の構成を示す縦断面図である。図4に示す半導体装置が図2に示す半導体装置と相違する唯一の点は、各溝9の側面9Sの直下部にはJTE層が形成されてはおらず、各溝9の底部9Bのみからn-型半導体層2内へ向けてJTE層5が形成されているにすぎない点にある。その他の構造は図2に示す対応する構造と同様であり、その他の符号の詳しい説明を省略する。
図5は、実施の形態1(図2)の変形例2に係る半導体装置の構成を示す縦断面図である。図5に示す半導体装置が図2に示す半導体装置と相違する唯一の点は、複数の溝9の内でGR層4から最も遠方ないしは外側に位置する溝9Pの底部の、n-型半導体層2の表面2Sからの深さTPが、その他の溝9a,9b,9cの底部の深さTと比較して、最も深いという点にある(TP>T)。尚、その他の構造は、図2の半導体装置の対応する構造と同一であり、従って、実施の形態1で生ずる既述した効果は本変形例に於いても同様に得られる。
図6は、実施の形態1(図2)の変形例3に係る半導体装置の構成を示す縦断面図である。図6に示す半導体装置が図2に示す半導体装置と相違する唯一の点は、全ての溝9の各々が一つのJTE層5と接続される様に、一つのJTE層5が形成されている点にある。即ち、図6の構造では、隣り合う溝9間に位置するn-型半導体層2の表面2SAからも、n-型半導体層2の内部に向けて、JTE層5の一部分が形成され、その様なJTE層5の一部分が、両隣の各々の溝9の底部及び側面の直下部から形成されたJTE層5の他部分と結合し合って、図6に示された一つのJTE層5が形成されている。その他の構造は、実施の形態1に於ける対応する構造と同様であり、従って、既述した実施の形態1の効果が同様に発揮され得る。
図7は、実施の形態1(図2)の変形例4に係る半導体装置の構成を示す縦断面図である。図7に示す半導体装置が図2に示す半導体装置と相違する特徴点は、第1電極3Aの端部3AE及びその端部周辺部2SPAが、その直下領域にp型のGR層4Aが形成されたガードリング層用溝9a1内に配設されている点にある。この構造のために、絶縁膜7Aの一部は、溝9a1内にまで延設されて端部周辺部2SPAを全面的に被覆している。その他の構造は、実施の形態1の対応する構造と同一である。
図8は、実施の形態1(図2)の変形例5に係る半導体装置の構成を示す縦断面図である。図8に示す半導体装置が図2に示す半導体装置と唯一相違する点は、GR層4内に、第1電極3の端部3Eと接触した、リング状に第1電極3を取り囲む第3のp型半導体層(第2GR層に該当)15を配置している点にある。第3のp型半導体層15の不純物濃度は、GR層4の不純物濃度よりも高く設定されている。その他の構造は、図2に示す、対応する構造と同様である。第3のp型半導体層15は、第1電極3の端部3Eのコーナー部に於ける電界集中を緩和する機能を呈する。
尚、本発明の主題に係る終端構造は、実施の形態1及びその各変形例に於いて示したショットキーダイオードの他に、パワーMOSFET等のその他のパワー半導体装置にも適用可能である。
Claims (8)
- 第1導電型の半導体層と、
前記半導体層の主面上に形成された、ショットキー電極として機能する電極と、
前記半導体層の前記主面の内で前記電極の端部の直下に位置する部分から前記半導体層の内部に向けて形成され、且つ、前記電極を取り囲む様に形成された第2導電型のガードリング層と、
前記ガードリング層から離間して前記ガードリング層を取り囲む様に、前記半導体層の前記主面の内で前記電極の前記端部よりも外側に位置する部分から前記半導体層の内部に向けて形成された、少なくとも一つから成る溝と、
前記少なくとも一つの溝の底部より前記半導体層の内部に向けて、前記ガードリング層から離間して前記ガードリング層を取り囲む様に形成された、少なくとも一つから成る前記第2導電型のJTE層と、
前記ガードリング層の表面及び前記少なくとも一つのJTE層の表面を被覆する様に、前記半導体層の前記主面上に形成された絶縁膜とを備えたことを特徴とする、
半導体装置。 - 請求項1記載の半導体装置であって、
前記半導体層の前記主面から見て、前記少なくとも一つのJTE層の底部の方が前記ガードリング層の底部よりも深いことを特徴とする、
半導体装置。 - 請求項1又は2に記載の半導体装置であって、
前記少なくとも一つのJTE層は、前記少なくとも一つの溝の側面からも前記半導体層の内部に向けて形成されていることを特徴とする、
半導体装置。 - 請求項1乃至3の何れか一項に記載の半導体装置であって、
前記絶縁膜の内で前記少なくとも一つの溝の前記底部上の部分の膜厚が、前記絶縁膜の内で前記少なくとも一つの溝が形成されてはいない前記主面の部分上の部分の膜厚よりも厚いことを特徴とする、
半導体装置。 - 請求項1乃至4の何れか一項に記載の半導体装置であって、
前記溝は複数個あり、
各溝に対応して前記JTE層は複数個あり、
前記複数個の溝の内で前記ガードリング層から最も遠方に位置する溝の前記主面からの深さが最も深いことを特徴とする、
半導体装置。 - 請求項3又は4に記載の半導体装置であって、
前記溝は複数個あり、
一つのJTE層が前記複数個の溝の各々と接続する様に形成されていることを特徴とする、
半導体装置。 - 請求項1乃至6の何れか一項に記載の半導体装置であって、
前記電極の前記端部は、その直下に前記ガードリング層が形成されたガードリング層用溝内に配設されていることを特徴とする、
半導体装置。 - 請求項1乃至6の何れか一項に記載の半導体装置であって、
前記ガードリング層は、
前記半導体層の前記主面の内で前記電極の前記端部の直下に位置する部分から前記ガードリング層の内部に向けて前記電極を取り囲む様に形成され、且つ、前記ガードリング層の不純物濃度よりも高濃度の前記第2導電型の不純物を含む第2ガードリング層を備えることを特徴とする、
半導体装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010503845A JP5361861B2 (ja) | 2008-03-17 | 2009-03-12 | 半導体装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008067095 | 2008-03-17 | ||
JP2008067095 | 2008-03-17 | ||
PCT/JP2009/054726 WO2009116444A1 (ja) | 2008-03-17 | 2009-03-12 | 半導体装置 |
JP2010503845A JP5361861B2 (ja) | 2008-03-17 | 2009-03-12 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2009116444A1 JPWO2009116444A1 (ja) | 2011-07-21 |
JP5361861B2 true JP5361861B2 (ja) | 2013-12-04 |
Family
ID=41090848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010503845A Active JP5361861B2 (ja) | 2008-03-17 | 2009-03-12 | 半導体装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8304901B2 (ja) |
EP (1) | EP2259326B1 (ja) |
JP (1) | JP5361861B2 (ja) |
KR (1) | KR101220568B1 (ja) |
CN (1) | CN101978502B (ja) |
WO (1) | WO2009116444A1 (ja) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8232558B2 (en) | 2008-05-21 | 2012-07-31 | Cree, Inc. | Junction barrier Schottky diodes with current surge capability |
JP2011066207A (ja) * | 2009-09-17 | 2011-03-31 | Mitsubishi Electric Corp | 半導体装置 |
JP5600411B2 (ja) * | 2009-10-28 | 2014-10-01 | 三菱電機株式会社 | 炭化珪素半導体装置 |
US8372738B2 (en) * | 2009-10-30 | 2013-02-12 | Alpha & Omega Semiconductor, Inc. | Method for manufacturing a gallium nitride based semiconductor device with improved termination scheme |
US9117739B2 (en) | 2010-03-08 | 2015-08-25 | Cree, Inc. | Semiconductor devices with heterojunction barrier regions and methods of fabricating same |
JP6301776B2 (ja) * | 2010-05-26 | 2018-03-28 | 三菱電機株式会社 | 半導体装置 |
JP5810522B2 (ja) * | 2010-12-14 | 2015-11-11 | 日産自動車株式会社 | 異種材料接合型ダイオード及びその製造方法 |
JP2012146832A (ja) * | 2011-01-13 | 2012-08-02 | Mitsubishi Electric Corp | 半導体装置 |
CN103299425B (zh) * | 2011-01-14 | 2016-02-24 | 三菱电机株式会社 | 半导体装置的制造方法 |
JP5687078B2 (ja) * | 2011-01-28 | 2015-03-18 | 三菱電機株式会社 | 炭化珪素半導体装置の製造方法 |
JP5546474B2 (ja) * | 2011-02-10 | 2014-07-09 | 三菱電機株式会社 | 炭化珪素半導体装置の製造方法 |
JP2012175021A (ja) * | 2011-02-24 | 2012-09-10 | Mitsubishi Electric Corp | 電力用半導体装置 |
JP5697744B2 (ja) * | 2011-04-04 | 2015-04-08 | 三菱電機株式会社 | 半導体装置およびその製造方法 |
CN102222701A (zh) * | 2011-06-23 | 2011-10-19 | 哈尔滨工程大学 | 一种沟槽结构肖特基器件 |
JP2013030618A (ja) | 2011-07-28 | 2013-02-07 | Rohm Co Ltd | 半導体装置 |
US8664665B2 (en) * | 2011-09-11 | 2014-03-04 | Cree, Inc. | Schottky diode employing recesses for elements of junction barrier array |
US8680587B2 (en) * | 2011-09-11 | 2014-03-25 | Cree, Inc. | Schottky diode |
US8618582B2 (en) * | 2011-09-11 | 2013-12-31 | Cree, Inc. | Edge termination structure employing recesses for edge termination elements |
US9202940B2 (en) * | 2011-09-28 | 2015-12-01 | Mitsubishi Electric Corporation | Semiconductor device |
WO2013103024A1 (ja) * | 2012-01-05 | 2013-07-11 | 三菱電機株式会社 | 炭化珪素半導体装置およびその製造方法 |
CN103035621B (zh) * | 2012-05-30 | 2015-06-03 | 上海华虹宏力半导体制造有限公司 | 超级结mosfet的终端保护结构 |
CN102938421B (zh) * | 2012-11-14 | 2015-10-07 | 东南大学 | 一种梯形终端的碳化硅结势垒肖特基二极管器件 |
JP2014138048A (ja) * | 2013-01-16 | 2014-07-28 | Sumitomo Electric Ind Ltd | 炭化珪素半導体装置 |
JP6419414B2 (ja) * | 2013-03-22 | 2018-11-07 | 株式会社東芝 | SiCエピタキシャルウェハおよび半導体装置 |
JP6168806B2 (ja) * | 2013-03-22 | 2017-07-26 | 株式会社東芝 | 半導体装置 |
JP6219045B2 (ja) * | 2013-03-22 | 2017-10-25 | 株式会社東芝 | 半導体装置およびその製造方法 |
JP6056623B2 (ja) * | 2013-04-12 | 2017-01-11 | 三菱電機株式会社 | 半導体装置および半導体装置の製造方法 |
JP6277623B2 (ja) * | 2013-08-01 | 2018-02-14 | 住友電気工業株式会社 | ワイドバンドギャップ半導体装置 |
JP2014195089A (ja) * | 2014-04-28 | 2014-10-09 | Toshiba Corp | 半導体装置 |
JP6270706B2 (ja) * | 2014-12-11 | 2018-01-31 | トヨタ自動車株式会社 | 半導体装置とその製造方法 |
JP6592950B2 (ja) * | 2015-04-24 | 2019-10-23 | 富士電機株式会社 | 炭化ケイ素半導体装置の製造方法 |
DE102016110203B4 (de) * | 2015-06-02 | 2019-11-21 | Diotec Semiconductor Ag | Verbesserte Halbleiteranordnung mit Schottky-Diode und Verfahren zu deren Herstellung |
CN106783956A (zh) * | 2016-12-27 | 2017-05-31 | 西安电子科技大学 | 具有侧壁可变角度的沟槽场限环终端结构及制备方法 |
CN106783964A (zh) * | 2017-01-24 | 2017-05-31 | 深圳基本半导体有限公司 | 一种宽禁带半导体器件及其制作方法 |
CN107275382A (zh) * | 2017-06-20 | 2017-10-20 | 中国科学院微电子研究所 | 一种基于台面多区复合jte终端结构的器件及其制作方法 |
CN107507859A (zh) * | 2017-08-31 | 2017-12-22 | 中国科学院微电子研究所 | 一种碳化硅器件终端及其制作方法 |
CN107658213A (zh) * | 2017-09-01 | 2018-02-02 | 中国科学院微电子研究所 | 一种碳化硅功率器件终端及其制作方法 |
US11158703B2 (en) * | 2019-06-05 | 2021-10-26 | Microchip Technology Inc. | Space efficient high-voltage termination and process for fabricating same |
CN110600533B (zh) * | 2019-09-03 | 2022-10-18 | 深圳第三代半导体研究院 | 具有高雪崩耐量的碳化硅肖特基二极管器件及其制造方法 |
CN110931548A (zh) * | 2019-12-16 | 2020-03-27 | 安建科技(深圳)有限公司 | 一种半导体器件结构及其制造方法 |
JP2020092282A (ja) * | 2020-02-25 | 2020-06-11 | ローム株式会社 | ショットキーバリアダイオード |
CN111755522B (zh) * | 2020-06-02 | 2021-10-08 | 西安电子科技大学 | 一种集成tjbs的碳化硅umosfet器件 |
JP2023079552A (ja) * | 2021-11-29 | 2023-06-08 | Tdk株式会社 | ジャンクションバリアショットキーダイオード |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0361319A2 (de) * | 1988-09-27 | 1990-04-04 | Asea Brown Boveri Aktiengesellschaft | Leistungshalbleiterbauelement |
JP2000312011A (ja) * | 1999-04-26 | 2000-11-07 | Rohm Co Ltd | 整流用半導体装置 |
JP2001094095A (ja) * | 1999-09-21 | 2001-04-06 | Denso Corp | 炭化珪素半導体装置及びその製造方法 |
JP2001508950A (ja) * | 1997-01-21 | 2001-07-03 | エービービー リサーチ リミテッド | 炭化珪素ショットキーダイオードの接合止端 |
DE10312911A1 (de) * | 2003-03-22 | 2004-10-14 | Infineon Technologies Ag | Halbleiterbauelement mit platzsparendem Randabschluss |
JP2005135972A (ja) * | 2003-10-28 | 2005-05-26 | Shindengen Electric Mfg Co Ltd | 半導体装置の製造方法 |
JP2005303025A (ja) * | 2004-04-13 | 2005-10-27 | Nissan Motor Co Ltd | 半導体装置 |
WO2006047382A2 (en) * | 2004-10-21 | 2006-05-04 | International Rectifier Corporation | Solderable top metal for sic device |
JP2008053418A (ja) * | 2006-08-24 | 2008-03-06 | National Institute Of Advanced Industrial & Technology | 炭化珪素半導体装置の製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01272151A (ja) * | 1988-04-25 | 1989-10-31 | Matsushita Electric Works Ltd | ガードリングを有する半導体素子及びその製造方法 |
JPH065841A (ja) * | 1992-06-19 | 1994-01-14 | Fuji Electric Co Ltd | 半導体素子の製造方法 |
JP3708057B2 (ja) * | 2001-07-17 | 2005-10-19 | 株式会社東芝 | 高耐圧半導体装置 |
US7138668B2 (en) * | 2003-07-30 | 2006-11-21 | Nissan Motor Co., Ltd. | Heterojunction diode with reduced leakage current |
JP2006310555A (ja) * | 2005-04-28 | 2006-11-09 | Nec Electronics Corp | 半導体装置およびその製造方法 |
EP1850396A3 (en) * | 2006-04-28 | 2008-09-17 | Nissan Motor Co., Ltd. | Semiconductor device and manufacturing method thereof |
-
2009
- 2009-03-12 CN CN200980109708.8A patent/CN101978502B/zh active Active
- 2009-03-12 US US12/867,283 patent/US8304901B2/en active Active
- 2009-03-12 JP JP2010503845A patent/JP5361861B2/ja active Active
- 2009-03-12 KR KR1020107020870A patent/KR101220568B1/ko active IP Right Grant
- 2009-03-12 EP EP09723343.1A patent/EP2259326B1/en active Active
- 2009-03-12 WO PCT/JP2009/054726 patent/WO2009116444A1/ja active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0361319A2 (de) * | 1988-09-27 | 1990-04-04 | Asea Brown Boveri Aktiengesellschaft | Leistungshalbleiterbauelement |
JP2001508950A (ja) * | 1997-01-21 | 2001-07-03 | エービービー リサーチ リミテッド | 炭化珪素ショットキーダイオードの接合止端 |
JP2000312011A (ja) * | 1999-04-26 | 2000-11-07 | Rohm Co Ltd | 整流用半導体装置 |
JP2001094095A (ja) * | 1999-09-21 | 2001-04-06 | Denso Corp | 炭化珪素半導体装置及びその製造方法 |
DE10312911A1 (de) * | 2003-03-22 | 2004-10-14 | Infineon Technologies Ag | Halbleiterbauelement mit platzsparendem Randabschluss |
JP2005135972A (ja) * | 2003-10-28 | 2005-05-26 | Shindengen Electric Mfg Co Ltd | 半導体装置の製造方法 |
JP2005303025A (ja) * | 2004-04-13 | 2005-10-27 | Nissan Motor Co Ltd | 半導体装置 |
WO2006047382A2 (en) * | 2004-10-21 | 2006-05-04 | International Rectifier Corporation | Solderable top metal for sic device |
JP2008518445A (ja) * | 2004-10-21 | 2008-05-29 | インターナショナル レクティファイアー コーポレイション | 炭化ケイ素デバイス用のはんだ付け可能上部金属 |
JP2008053418A (ja) * | 2006-08-24 | 2008-03-06 | National Institute Of Advanced Industrial & Technology | 炭化珪素半導体装置の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2009116444A1 (ja) | 2011-07-21 |
KR20100129301A (ko) | 2010-12-08 |
KR101220568B1 (ko) | 2013-01-21 |
EP2259326A4 (en) | 2011-09-14 |
US20110001209A1 (en) | 2011-01-06 |
US8304901B2 (en) | 2012-11-06 |
CN101978502A (zh) | 2011-02-16 |
EP2259326B1 (en) | 2018-11-14 |
WO2009116444A1 (ja) | 2009-09-24 |
EP2259326A1 (en) | 2010-12-08 |
CN101978502B (zh) | 2012-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5361861B2 (ja) | 半導体装置 | |
CN107331616B (zh) | 一种沟槽结势垒肖特基二极管及其制作方法 | |
JP5600411B2 (ja) | 炭化珪素半導体装置 | |
US6639278B2 (en) | Semiconductor device | |
JP6666671B2 (ja) | 半導体装置 | |
JP7420485B2 (ja) | 炭化珪素半導体装置およびその製造方法 | |
JP2011066207A (ja) | 半導体装置 | |
US20080258152A1 (en) | SiC semiconductor device having outer periphery structure | |
JP6903222B2 (ja) | 炭化珪素半導体装置およびその製造方法 | |
JPWO2013161116A1 (ja) | 半導体装置及びその製造方法 | |
JP5827020B2 (ja) | 高耐圧半導体装置 | |
JP6030806B1 (ja) | ワイドギャップ型半導体装置及びワイドギャップ型半導体装置の製造方法 | |
JP5669712B2 (ja) | 半導体装置の製造方法 | |
JP2015106695A (ja) | 半導体装置及びその製造方法 | |
JP5943846B2 (ja) | 炭化珪素半導体装置及びその製造方法 | |
US7244969B2 (en) | Power semiconductor device | |
JP7257912B2 (ja) | 半導体装置 | |
JP2014192191A (ja) | 半導体装置及び半導体装置の製造方法 | |
KR20180032771A (ko) | 쇼트키 배리어 다이오드 및 그 제조 방법 | |
KR101667669B1 (ko) | 쇼트키 배리어 다이오드 및 그 제조방법 | |
JP6200864B2 (ja) | 高耐圧半導体装置 | |
KR101895178B1 (ko) | 반도체 장치의 제조 방법 | |
JP6539026B2 (ja) | 半導体装置及びその製造方法 | |
JP4425295B2 (ja) | 半導体装置 | |
JP4381435B2 (ja) | 半導体装置および半導体装置の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20121113 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130110 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130806 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130903 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5361861 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |