JP7472004B2 - 薄膜キャパシタ - Google Patents
薄膜キャパシタ Download PDFInfo
- Publication number
- JP7472004B2 JP7472004B2 JP2020198193A JP2020198193A JP7472004B2 JP 7472004 B2 JP7472004 B2 JP 7472004B2 JP 2020198193 A JP2020198193 A JP 2020198193A JP 2020198193 A JP2020198193 A JP 2020198193A JP 7472004 B2 JP7472004 B2 JP 7472004B2
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- JP
- Japan
- Prior art keywords
- film
- conductor
- capacitor
- fuse region
- region
- 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.)
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- 239000003990 capacitor Substances 0.000 title claims description 59
- 239000010409 thin film Substances 0.000 title claims description 29
- 239000010408 film Substances 0.000 claims description 97
- 239000004020 conductor Substances 0.000 claims description 82
- 239000000463 material Substances 0.000 description 9
- 230000015556 catabolic process Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000059 patterning Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/015—Special provisions for self-healing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/33—Thin- or thick-film capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Ceramic Capacitors (AREA)
Description
10 容量絶縁膜
11 容量絶縁膜の下面
12 容量絶縁膜の上面
20 下部容量電極
30 上部容量電極
30C キャパシタ領域
30Ca 分離されたキャパシタ領域
30F ヒューズ領域
31,32 導体膜
S ショート不良の発生箇所
SL スリット
Claims (3)
- 容量絶縁膜と、
前記容量絶縁膜の一方の表面を覆う第1の容量電極と、
前記容量絶縁膜の他方の表面を覆い、スリットによって区画された複数のキャパシタ領域と、互いに隣接する2つの前記キャパシタ領域を相互に接続する複数のヒューズ領域とを含む第2の容量電極と、を備え、
前記第2の容量電極は、前記容量絶縁膜と接する第1の導体膜と、最表面を構成し、前記第1の導体膜よりも電気抵抗率の低い第2の導体膜を含む複数の導体膜が積層された構造を有し、
前記第2の導体膜がCuからなり、
前記ヒューズ領域における前記第2の導体膜の導体厚は、前記キャパシタ領域における前記第2の導体膜の導体厚よりも薄いことを特徴とする薄膜キャパシタ。 - 前記ヒューズ領域における前記第2の導体膜の導体幅は、前記ヒューズ領域における前記第1の導体膜の導体幅よりも狭いことを特徴とする請求項1に記載の薄膜キャパシタ。
- 前記ヒューズ領域においては、前記第2の容量電極の断面がテーパー形状を有していることを特徴とする請求項2に記載の薄膜キャパシタ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020198193A JP7472004B2 (ja) | 2020-11-30 | 2020-11-30 | 薄膜キャパシタ |
US17/536,319 US11651895B2 (en) | 2020-11-30 | 2021-11-29 | Thin film capacitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020198193A JP7472004B2 (ja) | 2020-11-30 | 2020-11-30 | 薄膜キャパシタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022086273A JP2022086273A (ja) | 2022-06-09 |
JP7472004B2 true JP7472004B2 (ja) | 2024-04-22 |
Family
ID=81751613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020198193A Active JP7472004B2 (ja) | 2020-11-30 | 2020-11-30 | 薄膜キャパシタ |
Country Status (2)
Country | Link |
---|---|
US (1) | US11651895B2 (ja) |
JP (1) | JP7472004B2 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004039910A (ja) | 2002-07-04 | 2004-02-05 | Matsushita Electric Ind Co Ltd | 積層型金属化フィルムコンデンサ |
JP2011258818A (ja) | 2010-06-10 | 2011-12-22 | Ibiden Co Ltd | プリント配線板、電子デバイス、及びプリント配線板の製造方法 |
JP2019169622A (ja) | 2018-03-23 | 2019-10-03 | Tdk株式会社 | 薄膜キャパシタ、及び薄膜キャパシタの製造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4482931A (en) * | 1981-08-24 | 1984-11-13 | General Electric Company | Metallized capacitor with improved bilayer electrodes |
JP4770935B2 (ja) | 2009-02-02 | 2011-09-14 | パナソニック株式会社 | 金属化フィルムコンデンサ |
US20120287554A1 (en) * | 2011-02-16 | 2012-11-15 | S B E, Inc. | Patterned metallized film with enhanced underlayer for metallized capacitor applications |
JP5912795B2 (ja) | 2012-04-12 | 2016-04-27 | ニチコン株式会社 | 金属化フィルムコンデンサ |
JP6304169B2 (ja) * | 2015-08-10 | 2018-04-04 | トヨタ自動車株式会社 | 金属化フィルムコンデンサ |
JP7153838B2 (ja) * | 2016-10-28 | 2022-10-17 | パナソニックIpマネジメント株式会社 | フィルムコンデンサ |
WO2018142922A1 (ja) * | 2017-02-03 | 2018-08-09 | 株式会社村田製作所 | フィルムコンデンサ、フィルムコンデンサの製造方法、誘電体樹脂フィルム、及び、誘電体樹脂フィルムの製造方法 |
CN108987109B (zh) * | 2018-07-17 | 2023-11-24 | 广东丰明电子科技有限公司 | 一种内串式金属化安全膜电容器 |
-
2020
- 2020-11-30 JP JP2020198193A patent/JP7472004B2/ja active Active
-
2021
- 2021-11-29 US US17/536,319 patent/US11651895B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004039910A (ja) | 2002-07-04 | 2004-02-05 | Matsushita Electric Ind Co Ltd | 積層型金属化フィルムコンデンサ |
JP2011258818A (ja) | 2010-06-10 | 2011-12-22 | Ibiden Co Ltd | プリント配線板、電子デバイス、及びプリント配線板の製造方法 |
JP2019169622A (ja) | 2018-03-23 | 2019-10-03 | Tdk株式会社 | 薄膜キャパシタ、及び薄膜キャパシタの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US11651895B2 (en) | 2023-05-16 |
US20220172894A1 (en) | 2022-06-02 |
JP2022086273A (ja) | 2022-06-09 |
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