JP6784131B2 - 薄膜キャパシタを製造する方法 - Google Patents
薄膜キャパシタを製造する方法 Download PDFInfo
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- JP6784131B2 JP6784131B2 JP2016200168A JP2016200168A JP6784131B2 JP 6784131 B2 JP6784131 B2 JP 6784131B2 JP 2016200168 A JP2016200168 A JP 2016200168A JP 2016200168 A JP2016200168 A JP 2016200168A JP 6784131 B2 JP6784131 B2 JP 6784131B2
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- 239000003990 capacitor Substances 0.000 title claims description 50
- 239000010409 thin film Substances 0.000 title claims description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 41
- 238000000034 method Methods 0.000 claims description 42
- 238000005530 etching Methods 0.000 claims description 38
- 238000000206 photolithography Methods 0.000 claims description 14
- 238000001039 wet etching Methods 0.000 claims description 14
- 239000011810 insulating material Substances 0.000 description 26
- 238000000605 extraction Methods 0.000 description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 7
- 239000010949 copper Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- Ceramic Capacitors (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
Claims (2)
- (a)少なくとも第1電極層と、第1誘電体層と、第2電極層と、第2誘電体層と、第3電極層と、がこの順に積層された積層体を形成する工程と、
(b)前記積層体上にマスクを形成する工程と、
(c)前記マスクに第1の開口を形成する工程と、
(d)前記第3電極層に対するエッチングレートが、前記第2誘電体層に対するエッチングレートよりも大きいエッチング液を用いたウェットエッチング法によって、前記マスクを用いて前記第2電極層が露出するように前記積層体の前記第3電極層及び前記第2誘電体層をエッチングすることにより、前記第1の開口の下に前記第2電極層に至る深さの第1の積層体開口部を形成する工程と、
(e)前記第1の開口と離間するように前記マスクに第2の開口を形成する工程と、
(f)前記第2電極層に対するエッチングレートが、前記第1誘電体層に対するエッチングレートよりも大きいエッチング液を用いたウェットエッチング法によって、前記マスクを用いて前記第1電極層が露出するように前記積層体の前記第2電極層及び前記第1誘電体層をエッチングすることにより、前記第1の積層体開口部を前記第1電極層に至る深さまで深くすると共に、前記第2の開口の下に前記第2電極層に至る深さの第2の積層体開口部を形成する工程と、
を有する薄膜キャパシタを製造する方法。 - 前記マスクは、ポジ型レジストで形成され、
前記工程(c)及び前記工程(e)では、フォトリソグラフィー法によって前記マスクに前記第1の開口及び前記第2の開口がそれぞれ形成される、請求項1に記載の方法。
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JP2018063990A JP2018063990A (ja) | 2018-04-19 |
JP6784131B2 true JP6784131B2 (ja) | 2020-11-11 |
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Families Citing this family (1)
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JP7471861B2 (ja) * | 2020-02-27 | 2024-04-22 | Tdk株式会社 | 薄膜キャパシタ及びこれを内蔵する回路基板 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3498190B2 (ja) * | 1994-06-06 | 2004-02-16 | 株式会社村田製作所 | 薄膜積層電極の製造方法 |
JPH11233732A (ja) * | 1998-02-13 | 1999-08-27 | Toshiba Corp | 薄膜キャパシタ |
JP4206669B2 (ja) * | 2002-01-23 | 2009-01-14 | セイコーエプソン株式会社 | エッチングパターン形成方法 |
JP2008210843A (ja) * | 2007-02-23 | 2008-09-11 | Matsushita Electric Ind Co Ltd | 半導体装置の製造方法および半導体装置 |
WO2009078225A1 (ja) * | 2007-12-14 | 2009-06-25 | Murata Manufacturing Co., Ltd. | 薄膜積層キャパシタの製造方法 |
JP5267251B2 (ja) * | 2008-03-31 | 2013-08-21 | Tdk株式会社 | 薄膜コンデンサ、及び薄膜コンデンサの製造方法 |
JP5929540B2 (ja) * | 2012-06-19 | 2016-06-08 | 株式会社村田製作所 | 電子部品 |
JP2015138934A (ja) * | 2014-01-24 | 2015-07-30 | 芝浦メカトロニクス株式会社 | 基板加工装置、基板加工方法及び基板製造方法 |
JP2018063989A (ja) * | 2016-10-11 | 2018-04-19 | Tdk株式会社 | 薄膜キャパシタ |
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