JP2020077712A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2020077712A JP2020077712A JP2018209079A JP2018209079A JP2020077712A JP 2020077712 A JP2020077712 A JP 2020077712A JP 2018209079 A JP2018209079 A JP 2018209079A JP 2018209079 A JP2018209079 A JP 2018209079A JP 2020077712 A JP2020077712 A JP 2020077712A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 95
- 239000012535 impurity Substances 0.000 claims abstract description 72
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052785 arsenic Inorganic materials 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 229910002704 AlGaN Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 239000004047 hole gas Substances 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 230000005533 two-dimensional electron gas Effects 0.000 description 5
- 239000000969 carrier Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000000231 atomic layer deposition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004549 pulsed laser deposition Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000000927 vapour-phase epitaxy Methods 0.000 description 1
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Abstract
Description
図面は模式的または概念的なものであり、各部分の厚さと幅との関係、部分間の大きさの比率などは、必ずしも現実のものと同一とは限らない。同じ部分を表す場合であっても、図面により互いの寸法や比率が異なって表される場合もある。
本願明細書と各図において、既出の図に関して前述したものと同様の要素には同一の符号を付して詳細な説明は適宜省略する。
図1(a)〜図1(c)は、第1実施形態に係る半導体装置を例示する模式的断面図である。
図1(a)〜図1(c)に示すように、第1実施形態に係る半導体装置110、110a及び110bは、第1電極51、第2電極52、第3電極53、第1層10、及び、第2層20を含む。これらの例では、これらの半導体装置は、絶縁部40をさらに含む。
図2(a)〜図2(c)に示すように、第1実施形態に係る半導体装置111、111a及び111bも、第1電極51、第2電極52、第3電極53、第1層10、第2層20及び絶縁部40を含む。半導体装置111、111a及び111bにおいては、第1層は、第1〜第6部分領域11〜16に加えて、第7部分領域17をさらに含む。これらの半導体装置におけるこれ以外の構成は、半導体装置110、110a及び110bにおける構成と同様である。以下、第7部分領域17の例について説明する。
図3(a)〜図3(c)に示すように、第1実施形態に係る半導体装置112、112a及び112bも、第1電極51、第2電極52、第3電極53、第1層10、第2層20及び絶縁部40を含む。半導体装置112、112a及び112bにおいては、第1層は、第1〜第6部分領域11〜16に加えて、第8部分領域18及び第9部分領域19をさらに含む。これらの半導体装置におけるこれ以外の構成は、半導体装置110、110a及び110bにおける構成と同様である。以下、第8部分領域18及び第9部分領域19の例について説明する。
図4(a)〜図4(c)に示すように、第1実施形態に係る半導体装置113、113a及び113bも、第1電極51、第2電極52、第3電極53、第1層10、第2層20及び絶縁部40を含む。半導体装置113、113a及び113bにおいては、第1層は、第1〜第6部分領域11〜16に加えて、第7部分領域17、第8部分領域18及び第9部分領域19をさらに含む。
図5(a)、図5(b)、図6(a)及び図6(b)は、第2実施形態に係る半導体装置を例示する模式的断面図である。
半導体装置120、121、122及び123においては、第3電極53の少なくとも一部は、第1方向(X軸方向)において、第1部分p1と第2部分p2との間にある。これ以外の構成は、例えば、半導体装置110、111、112及び113のそれぞれの構成と同じである。
半導体装置120a、121a、122a及び123aにおいては、第3電極53の少なくとも一部は、第1方向(X軸方向)において、第5部分領域15と第6部分領域16との間にあっても良い。これ以外の構成は、例えば、半導体装置110、111、112及び113のそれぞれの構成と同じである。
第1層10となる半導体層を準備する。この半導体層の一部に、第1不純物を導入する。第1不純物の導入は、例えばイオン注入により行われる。これにより、第4部分領域14が形成される。この後、第2層20を形成する。例えば、エピタキシャル成長が行われる。その後、絶縁部40、及び、第1〜第3電極53を形成することで、実施形態に係る半導体装置(例えば、半導体装置110など)が得られる。
Claims (20)
- 第1電極と、
第2電極であって、前記第1電極から前記第2電極への方向は、第1方向に沿う、前記第2電極と、
第3電極であって、前記第3電極の前記第1方向における位置は、前記第1電極の前記第1方向における位置と、前記第2電極の前記第1方向における位置と、の間にある、前記第3電極と、
炭化シリコン、シリコン、カーボン及びゲルマニウムよりなる群から選択された少なくとも1つを含む第1層であって、前記第1層は、第1〜第6部分領域を含み、前記第1部分領域から前記第1電極への方向、前記第2部分領域から前記第2電極への方向、及び、前記第3部分領域から前記第3電極への方向は、前記第1方向と交差する第2方向に沿い、前記第4部分領域は、前記第2方向において前記第3部分領域と前記第3電極との間にあり、前記第5部分領域の前記第1方向における位置は、前記第1部分領域の前記第1方向における位置と、前記第4部分領域の前記第1方向における位置と、の間にあり、前記第6部分領域の前記第1方向における位置は、前記第4部分領域の前記第1方向における前記位置と、前記第2部分領域の前記第1方向における位置と、の間にあり、前記第4部分領域における第1不純物の濃度は、前記第5部分領域における前記第1不純物の濃度よりも高く、前記第6部分領域における前記第1不純物の濃度よりも高い、前記第1層と、
AlxGa1−xN(0<x≦1)を含む第2層であって、前記第2層は、第1部分及び第2部分を含み、前記第5部分領域から前記第1部分への方向、及び、前記第6部分領域から前記第2部分への方向は、前記第2方向に沿う、前記第2層と、
を備えた、半導体装置。 - 前記第5部分領域における前記第1不純物の前記濃度は、1×1015cm−3以下であり、
前記第6部分領域における前記第1不純物の前記濃度は、1×1015cm−3以下である、請求項1記載の半導体装置。 - 前記第4部分領域における前記第1不純物の前記濃度は、1×1016cm−3以上である、請求項1または2に記載の半導体装置。
- 前記第4部分領域における前記第1不純物の前記濃度は、前記第3部分領域における前記第1不純物の濃度よりも高い、請求項1〜3のいずれか1つに記載の半導体装置。
- 前記第5部分領域から前記第1部分への向きは、前記第2層の<0001>方向に沿い、
前記第1不純物は、B、Al及びGaよりなる群から選択された少なくともいずれかを含む、請求項1〜4のいずれか1つに記載の半導体装置。 - 前記第5部分領域から前記第1部分への向きは、前記第2層の<000−1>方向に沿い、
前記第1不純物は、N、P及びAsよりなる群から選択された少なくともいずれかを含む、請求項1〜4のいずれか1つに記載の半導体装置。 - 前記第1層は、前記第2方向において前記第4部分領域と前記第3電極との間に設けられた第7部分領域をさらに含む、請求項1〜6のいずれか1つに記載の半導体装置。
- 前記第7部分領域における前記第1不純物の濃度は、前記第4部分領域における前記第1不純物の前記濃度よりも低い、請求項7記載の半導体装置。
- 前記第2層は、前記第2方向において前記第1部分領域と前記第1電極との間に設けられた第4部分をさらに含む、請求項1〜8のいずれか1つに記載の半導体装置。
- 前記第1層は、前記第2方向において前記第1部分領域と前記第1電極との間に設けられた第8部分領域をさらに含み、
前記第8部分領域における第2不純物の濃度は、前記第5部分領域における前記第2不純物の濃度よりも高く、
前記第4部分領域は、第1導電形及び第2導電形の一方であり、
前記第8部分領域は、第2導電形及び第2導電形の他方である、請求項1〜8のいずれか1つに記載の半導体装置。 - 前記第1層は、前記第2方向において前記第2部分領域と前記第2電極との間に設けられた第9部分領域をさらに含み、
前記第9部分領域における第2不純物の濃度は、前記第6部分領域における前記第2不純物の濃度よりも高く、
前記第4部分領域は、第1導電形及び第2導電形の一方であり、
前記第9部分領域は、第2導電形及び第2導電形の他方である、請求項1〜9のいずれか1つに記載の半導体装置。 - 前記第2層は、前記第2方向において前記第2部分領域と前記第2電極との間に設けられた第5部分をさらに含む、請求項1〜11のいずれか1つに記載の半導体装置。
- 前記第3電極は、第1端部及び第2端部を含み、前記第1端部の前記第1方向における位置は、前記第1電極の前記第1方向における前記位置と、前記第2端部の前記第1方向における位置との間にあり、
前記第4部分領域は、第3端部及び第4端部を含み、前記第3端部の前記第1方向における位置は、前記第1電極の前記第1方向における前記位置と、前記第4端部の前記第1方向における位置との間にあり、
前記第1端部の前記第1方向における前記位置は、前記第1電極の前記第1方向における前記位置と、前記第3端部の前記第1方向における前記位置との間にあり、
前記第2端部の前記第1方向における前記位置は、前記第2電極の前記第1方向における前記位置と、前記第4端部の前記第1方向における前記位置との間にある、請求項1〜12のいずれか1つに記載の半導体装置。 - 前記第2層は、第3部分をさらに含み、
前記第3部分は、前記第2方向において、前記第4部分領域と前記第3電極との間にある、請求項1〜13のいずれか1つに記載の半導体装置。 - 前記第3部分と前記第3電極との間に設けられた絶縁部をさらに備えた、請求項14記載の半導体装置。
- 前記第3電極の少なくとも一部は、前記第1方向において、前記第1部分と前記第2部分との間にある、請求項1〜15のいずれか1つに記載の半導体装置。
- 前記第3電極の少なくとも一部は、前記第1方向において、前記第5部分領域と前記第6部分領域との間にある、請求項1〜16のいずれか1つに記載の半導体装置。
- 前記xは、0.5以上である、請求項1〜17のいずれか1つに記載の半導体装置。
- 前記第1部分は、前記第5部分領域と接し、
前記第2部分は、前記第6部分領域と接した、請求項1〜18のいずれか1つに記載の半導体装置。 - 前記第4部分領域における結晶性は、前記第5部分領域における結晶性よりも低く、前記第6部分領域における結晶性よりも低い、請求項1〜19のいずれか1つに記載の半導体装置。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010010663A (ja) * | 2008-05-13 | 2010-01-14 | Imec | 小型化可能な量子井戸デバイスおよびその製造方法 |
JP2013145882A (ja) * | 2011-12-23 | 2013-07-25 | Imec | インプラントフリー量子井戸トランジスタ、そのようなインプラントフリー量子井戸トランジスタの作製方法、およびそのようなインプラントフリー量子井戸トランジスタの使用 |
JP2014072397A (ja) * | 2012-09-28 | 2014-04-21 | Fujitsu Ltd | 化合物半導体装置及びその製造方法 |
JP2016521460A (ja) * | 2013-04-30 | 2016-07-21 | コミサリア ア レネルジ アトミク エ オウ エネルジ アルタナティヴ | ヘテロ接合トランジスタに通常は妨げられる注入領域を形成する方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE792015A (fr) | 1971-12-07 | 1973-05-28 | Ici Ltd | Production de compositions extinctrices solides |
US6853018B2 (en) * | 2001-07-19 | 2005-02-08 | Sony Corporation | Semiconductor device having a channel layer, first semiconductor layer, second semiconductor layer, and a conductive impurity region |
KR100715828B1 (ko) | 2003-03-19 | 2007-05-10 | 도꾸리쯔교세이호징 가가꾸 기쥬쯔 신꼬 기꼬 | 반도체 결정성장방법 |
JP2006269862A (ja) * | 2005-03-25 | 2006-10-05 | Oki Electric Ind Co Ltd | 半導体装置形成用ウエハ、その製造方法、および電界効果型トランジスタ |
JPWO2008123213A1 (ja) | 2007-03-26 | 2010-07-15 | 国立大学法人京都大学 | 半導体装置及び半導体製造方法 |
US8008689B2 (en) * | 2007-08-23 | 2011-08-30 | Ngk Insulators, Ltd. | MIS gate structure type HEMT device and method of fabricating MIS gate structure type HEMT device |
JP5341345B2 (ja) | 2007-12-18 | 2013-11-13 | 日本電信電話株式会社 | 窒化物半導体ヘテロ構造電界効果トランジスタ |
JP5207874B2 (ja) | 2008-08-08 | 2013-06-12 | 親夫 木村 | 半導体装置およびその製造方法 |
JP6966689B2 (ja) * | 2017-03-31 | 2021-11-17 | 富士通株式会社 | 窒化物半導体装置及びその製造方法 |
TW201839985A (zh) * | 2017-04-21 | 2018-11-01 | 聯穎光電股份有限公司 | 高電子遷移率電晶體 |
US10804369B2 (en) * | 2017-04-28 | 2020-10-13 | Mitsubishi Electric Corporation | Semiconductor device |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010010663A (ja) * | 2008-05-13 | 2010-01-14 | Imec | 小型化可能な量子井戸デバイスおよびその製造方法 |
JP2013145882A (ja) * | 2011-12-23 | 2013-07-25 | Imec | インプラントフリー量子井戸トランジスタ、そのようなインプラントフリー量子井戸トランジスタの作製方法、およびそのようなインプラントフリー量子井戸トランジスタの使用 |
JP2014072397A (ja) * | 2012-09-28 | 2014-04-21 | Fujitsu Ltd | 化合物半導体装置及びその製造方法 |
JP2016521460A (ja) * | 2013-04-30 | 2016-07-21 | コミサリア ア レネルジ アトミク エ オウ エネルジ アルタナティヴ | ヘテロ接合トランジスタに通常は妨げられる注入領域を形成する方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11798983B2 (en) | 2021-07-19 | 2023-10-24 | United Semiconductor Japan Co., Ltd. | Semiconductor device with deeply depleted channel and manufacturing method thereof |
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