JP7151620B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP7151620B2 JP7151620B2 JP2019092428A JP2019092428A JP7151620B2 JP 7151620 B2 JP7151620 B2 JP 7151620B2 JP 2019092428 A JP2019092428 A JP 2019092428A JP 2019092428 A JP2019092428 A JP 2019092428A JP 7151620 B2 JP7151620 B2 JP 7151620B2
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- 239000004065 semiconductor Substances 0.000 title claims description 120
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000000758 substrate Substances 0.000 claims description 57
- 238000001039 wet etching Methods 0.000 claims description 32
- 238000005530 etching Methods 0.000 claims description 18
- 238000001312 dry etching Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 150000004767 nitrides Chemical class 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 30
- 229910002601 GaN Inorganic materials 0.000 description 23
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 23
- 210000000746 body region Anatomy 0.000 description 16
- 239000011229 interlayer Substances 0.000 description 13
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 8
- 239000012535 impurity Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000005468 ion implantation Methods 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
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Description
図1を参照して、実施例1の半導体装置10について説明する。半導体装置10は、半導体基板12、ソース電極14、ドレイン電極16、ゲート電極18、ゲート絶縁膜20及び層間絶縁膜21、22を備える。本実施例では、半導体装置10は、MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor)である。
実施例2の半導体装置100は、以下に説明する点において、図1の半導体装置10と異なる。図9に示す半導体装置100は、ドレイン領域134が半導体基板112の下面112bに露出する範囲に設けられており、ドレイン電極116が半導体基板112の下面112bに接している。図1に示す半導体装置10のドレイン領域34及びドレイン電極16は、半導体装置100ではソース領域130及びソース電極114として機能する。また、半導体装置100では、半導体装置10のn型領域36に対応するn型領域136が、2つのソース領域130の間の範囲で半導体基板112の上面112aに露出している。すなわち、ボディ領域132が、n型領域136によって分割されている。半導体装置100では、n型領域136がドリフト領域として機能する。すなわち、半導体装置100は、縦型のMOSFETである。
一般的に、上述したような各半導体装置は、半導体ウェハの内部に複数の半導体装置を形成した後、ダイシングにより半導体ウェハを複数のチップに分割することにより製造される。半導体ウェハをダイシングすると、ダイシングされた面から不要な金属元素がチップの内部に取り込まれ、チップが汚染される場合がある。本明細書に開示の技術は、このような金属汚染を除去する際にも有用である。例えば、半導体ウェハの主面をc面とした場合、分割されたチップの側面に対して本明細書に開示のウェットエッチングを実施してもよい。上述したように、本明細書に開示のウェットエッチングでは、主にc面以外の面に対するエッチングが進行する。したがって、上面がc面により構成されているチップの側面に対してウェットエッチングを実施することにより、上面(c面)をほとんどエッチングすることなく側面をエッチングすることができる。このため、チップの洗浄のみでは取り除くことが困難であったチップ内部に取り込まれた金属元素を除去することができる。
Claims (3)
- 半導体装置の製造方法であって、
III族窒化物半導体により構成されており、主面がc面である半導体基板を準備する工程と、
前記主面をドライエッチングすることにより、前記主面に溝部を形成する工程と、
前記半導体基板のc面に対するエッチングレートが前記半導体基板のc面以外の面に対するエッチングレートよりも低いエッチング液を用いて前記溝部の内面をウェットエッチングすることにより、エッチング領域内に前記半導体基板のc面を露出させる工程と、
前記半導体基板内にソース領域とドレイン領域を形成する工程であって、前記ウェットエッチングにより露出した前記c面が前記ソース領域と前記ドレイン領域の間に位置するように前記ソース領域と前記ドレイン領域を形成する工程と、
前記ソース領域と前記ドレイン領域の間に位置する前記c面に対向する位置に配置されたゲート電極を形成する工程、
を有する、製造方法。 - 前記ソース領域と前記ドレイン領域を形成する工程では、前記溝部の底面の位置に前記ソース領域と前記ドレイン領域の少なくとも一方を形成する、請求項1に記載の製造方法。
- 前記主面に前記溝部を形成する工程では、前記主面に第1溝部と第2溝部を形成し、
前記ソース領域と前記ドレイン領域を形成する工程では、前記第1溝部の底面の位置に前記ソース領域を形成し、前記第2溝部の底面の位置に前記ドレイン領域を形成する、請求項2に記載の製造方法。
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JP2019092428A JP7151620B2 (ja) | 2019-05-15 | 2019-05-15 | 半導体装置の製造方法 |
US16/862,115 US11107691B2 (en) | 2019-05-15 | 2020-04-29 | Method of manufacturing semiconductor device |
CN202010409494.4A CN111952179B (zh) | 2019-05-15 | 2020-05-14 | 半导体装置的制造方法 |
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JP7151620B2 true JP7151620B2 (ja) | 2022-10-12 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006060069A (ja) | 2004-08-20 | 2006-03-02 | Sumitomo Electric Ind Ltd | AlN結晶の表面処理方法、AlN結晶基板、エピタキシャル層付AlN結晶基板および半導体デバイス |
JP2008010608A (ja) | 2006-06-29 | 2008-01-17 | Toyota Central Res & Dev Lab Inc | ウェットエッチング方法、ダメージ層除去方法、半導体装置の製造方法、および半導体基板の製造方法 |
JP2008041834A (ja) | 2006-08-03 | 2008-02-21 | Toyota Central Res & Dev Lab Inc | コンタクトホールの形成方法とコンタクトホールを有する半導体装置 |
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JP4097510B2 (ja) * | 2002-11-20 | 2008-06-11 | 株式会社沖データ | 半導体装置の製造方法 |
JP2007027232A (ja) * | 2005-07-13 | 2007-02-01 | Seiko Epson Corp | 半導体装置及びその製造方法 |
JP2008205414A (ja) | 2007-01-26 | 2008-09-04 | Rohm Co Ltd | 窒化物半導体素子、窒化物半導体パッケージおよび窒化物半導体素子の製造方法 |
US8080480B2 (en) * | 2007-09-28 | 2011-12-20 | Samsung Led Co., Ltd. | Method of forming fine patterns and manufacturing semiconductor light emitting device using the same |
JP2009177110A (ja) * | 2007-12-26 | 2009-08-06 | Rohm Co Ltd | 窒化物半導体素子および窒化物半導体素子の製造方法 |
US8680581B2 (en) * | 2008-12-26 | 2014-03-25 | Toyoda Gosei Co., Ltd. | Method for producing group III nitride semiconductor and template substrate |
JP5685736B2 (ja) * | 2012-02-10 | 2015-03-18 | パナソニックIpマネジメント株式会社 | 半導体装置及びその製造方法 |
US9076763B2 (en) * | 2012-08-13 | 2015-07-07 | Infineon Technologies Austria Ag | High breakdown voltage III-nitride device |
EP2920814A4 (en) * | 2012-11-16 | 2016-11-02 | Massachusetts Inst Technology | SEMICONDUCTOR STRUCTURE AND ETCHING TECHNIQUE FOR VENTING FORMATION |
JP6136571B2 (ja) * | 2013-05-24 | 2017-05-31 | 富士通株式会社 | 半導体装置及び半導体装置の製造方法 |
JP2015032745A (ja) * | 2013-08-05 | 2015-02-16 | 株式会社東芝 | 半導体装置および半導体装置の製造方法 |
JP2017024927A (ja) * | 2015-07-17 | 2017-02-02 | 古河機械金属株式会社 | Iii族窒化物半導体基板の製造方法 |
JP6968404B2 (ja) * | 2017-05-31 | 2021-11-17 | 国立大学法人東海国立大学機構 | Iii族窒化物半導体装置とその製造方法 |
US11164950B2 (en) * | 2019-03-07 | 2021-11-02 | Toyoda Gosei Co., Ltd. | Semiconductor device and production method |
-
2019
- 2019-05-15 JP JP2019092428A patent/JP7151620B2/ja active Active
-
2020
- 2020-04-29 US US16/862,115 patent/US11107691B2/en active Active
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006060069A (ja) | 2004-08-20 | 2006-03-02 | Sumitomo Electric Ind Ltd | AlN結晶の表面処理方法、AlN結晶基板、エピタキシャル層付AlN結晶基板および半導体デバイス |
JP2008010608A (ja) | 2006-06-29 | 2008-01-17 | Toyota Central Res & Dev Lab Inc | ウェットエッチング方法、ダメージ層除去方法、半導体装置の製造方法、および半導体基板の製造方法 |
JP2008041834A (ja) | 2006-08-03 | 2008-02-21 | Toyota Central Res & Dev Lab Inc | コンタクトホールの形成方法とコンタクトホールを有する半導体装置 |
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