KR101016658B1 - 탄탈 소결체의 제조방법 및 콘덴서의 제조방법 - Google Patents
탄탈 소결체의 제조방법 및 콘덴서의 제조방법 Download PDFInfo
- Publication number
- KR101016658B1 KR101016658B1 KR1020097019333A KR20097019333A KR101016658B1 KR 101016658 B1 KR101016658 B1 KR 101016658B1 KR 1020097019333 A KR1020097019333 A KR 1020097019333A KR 20097019333 A KR20097019333 A KR 20097019333A KR 101016658 B1 KR101016658 B1 KR 101016658B1
- Authority
- KR
- South Korea
- Prior art keywords
- tantalum
- powder
- sintered body
- capacitor
- sintered compact
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/052—Sintered electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
실시예 및 비교예 |
성형하중, N | 구멍분포 | ||
피크 1의 구멍지름, ㎛ |
피크 2의 구멍지름, ㎛ |
상대강도가 큰 피크 |
||
실시예 1 | 392 | 0.67 | 1 | 2 |
실시예 2 | 686 | 0.4 | 1.4 | 2 |
실시예 3 | 981 | 0.27 | 0.78 | 2 |
실시예 4 | 490 | 0.35 | 2.2 | 2 |
실시예 5 | 785 | 0.49 | 0.95 | 2 |
실시예 6 | 294 | 0.61 | 2.8 | 2 |
실시예 7 | 392 | 0.52 | 2.2 | 2 |
실시예 8 | 686 | 0.44 | 2.8 | 2 |
실시예 9 | 981 | 0.35 | 1.2 | 1 |
비교예 1 | 490 | 0.62 | 없음 | - |
비교예 2 | 686 | 0.55 | 없음 | - |
비교예 3 | 392 | 0.82 | 없음 | - |
방법 | 캐소드제 | 캐소드제 함침법 |
A | 폴리피롤 | 과황산암모늄 및 안트라퀴논술폰산이 부착된 소결체를 피롤증기와 기상중합시키는 것을 반복함 |
B | 이산화납과 황산납의 혼합물 (이산화납:98질량%) |
아세트산납과 과황산암모늄의 혼합액에 소결체를 침지시키는 것을 반복함. |
캐소드제 함침법 |
용량출현율, % |
내습치 | ||
용량 100~110%의 유니트수 |
용량 110~120%의 유니트수 | |||
실시예 1 | A | 82 | 30/30 | 0/30 |
B | 88 | 30/30 | 0/30 | |
실시예 2 | A | 85 | 30/30 | 0/30 |
B | 87 | 30/30 | 0/30 | |
실시예 3 | A | 79 | 27/30 | 3/30 |
실시예 4 | A | 84 | 30/30 | 0/30 |
실시예 5 | A | 80 | 30/30 | 0/30 |
실시예 6 | A | 82 | 30/30 | 0/30 |
실시예 7 | A | 85 | 30/30 | 0/30 |
실시예 8 | A | 81 | 30/30 | 0/30 |
실시예 9 | A | 82 | 30/30 | 0/30 |
비교예 1 | A | 71 | 16/30 | 14/30 |
비교예 2 | A | 69 | 11/30 | 19/30 |
비교예 3 | A | 73 | 17/30 | 13/30 |
Claims (6)
- 탄탈 분체를 가압성형한 후에 소결하는 탄탈 소결체의 제조방법에 있어서,가압성형시의 압력을, 상기 분체의 성형이 가능한 압력 이상이고, 얻어지는 소결체의 구멍지름분포 피크가 1개로 되는 압력보다 작은 범위로 하여, 크기가 다른 복수의 구멍지름피크를 갖는 구멍이 형성되도록 하고, 상기 복수의 구멍지름피크 중 상대강도가 큰 2개의 피크의 구멍지름이 0.2~0.7㎛ 및 0.7~3㎛이 되도록 하는 것을 특징으로 하는 탄탈 소결체의 제조방법.
- 제 1 항에 있어서,소결온도가 500~2000℃인 것을 특징으로 하는 탄탈 소결체의 제조방법.
- 제 1 항에 있어서,상기 탄탈 분체가 탄탈의 1차 입자를 소성후 분쇄한 조립분(造粒粉)인 것을 특징으로 하는 탄탈 소결체의 제조방법.
- 제 3 항에 있어서,상기 탄탈의 1차 입자를 소성 후 분쇄하는 것을 복수회 반복하는 것을 특징으로 하는 탄탈 소결체의 제조방법.
- 제 3 항에 있어서,상기 탄탈 분체의 평균 입경이 10㎛~300㎛인 것을 특징으로 하는 탄탈 소결 체의 제조방법.
- 제 1 항 내지 제 5 항 중 어느 한 항에 의한 방법으로 얻어지는 소결체를 전극으로 하고, 그 표면 상에 유전체를 형성하여, 상기 유전체 상에 상대전극을 형성하는 것을 특징으로 하는 콘덴서의 제조방법.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001305278 | 2001-10-01 | ||
JPJP-P-2001-305278 | 2001-10-01 | ||
US32673601P | 2001-10-04 | 2001-10-04 | |
US60/326,736 | 2001-10-04 | ||
PCT/JP2002/010151 WO2003032342A1 (en) | 2001-10-01 | 2002-09-30 | Tantalum sintered body and capacitor using the sintered body |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020037009369A Division KR101016657B1 (ko) | 2001-10-01 | 2002-09-30 | 탄탈 소결체 및 이 소결체를 사용한 콘덴서 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090104144A KR20090104144A (ko) | 2009-10-05 |
KR101016658B1 true KR101016658B1 (ko) | 2011-02-25 |
Family
ID=31986139
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020097019333A KR101016658B1 (ko) | 2001-10-01 | 2002-09-30 | 탄탈 소결체의 제조방법 및 콘덴서의 제조방법 |
KR1020037009369A KR101016657B1 (ko) | 2001-10-01 | 2002-09-30 | 탄탈 소결체 및 이 소결체를 사용한 콘덴서 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020037009369A KR101016657B1 (ko) | 2001-10-01 | 2002-09-30 | 탄탈 소결체 및 이 소결체를 사용한 콘덴서 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7361202B2 (ko) |
EP (1) | EP1433187A4 (ko) |
JP (2) | JP4396970B2 (ko) |
KR (2) | KR101016658B1 (ko) |
CN (1) | CN100468586C (ko) |
WO (2) | WO2003032342A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10290429B2 (en) | 2017-01-17 | 2019-05-14 | Kemet Electronics Corporation | Wire to anode connection |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3718412B2 (ja) * | 2000-06-01 | 2005-11-24 | キャボットスーパーメタル株式会社 | ニオブまたはタンタル粉末およびその製造方法 |
JP4614269B2 (ja) * | 2003-11-13 | 2011-01-19 | 昭和電工株式会社 | 固体電解コンデンサ |
US7729104B2 (en) * | 2004-04-15 | 2010-06-01 | Jfe Mineral Company, Ltd. | Tantalum powder and solid electrolyte capacitor including the same |
US20080106853A1 (en) * | 2004-09-30 | 2008-05-08 | Wataru Suenaga | Process for Producing Porous Sintered Metal |
CN100339172C (zh) * | 2005-09-29 | 2007-09-26 | 宁夏东方钽业股份有限公司 | 球化造粒凝聚金属粉末的方法,金属粉末和电解电容器阳极 |
KR102304220B1 (ko) * | 2019-01-14 | 2021-09-24 | (주)엠티아이지 | 탄탈륨 소결체 제조 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520430A (en) * | 1983-01-28 | 1985-05-28 | Union Carbide Corporation | Lead attachment for tantalum anode bodies |
JP2001155963A (ja) * | 1999-11-30 | 2001-06-08 | Showa Denko Kk | コンデンサ |
US6554884B1 (en) | 2000-10-24 | 2003-04-29 | H.C. Starck, Inc. | Tantalum and tantalum nitride powder mixtures for electrolytic capacitors substrates |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2513409B2 (ja) * | 1993-06-22 | 1996-07-03 | 日本電気株式会社 | 固体電解コンデンサ用焼結体の製造方法 |
US6576038B1 (en) * | 1998-05-22 | 2003-06-10 | Cabot Corporation | Method to agglomerate metal particles and metal particles having improved properties |
JP3871824B2 (ja) * | 1999-02-03 | 2007-01-24 | キャボットスーパーメタル株式会社 | 高容量コンデンサー用タンタル粉末 |
DE60033076T2 (de) * | 1999-04-16 | 2007-08-30 | Matsushita Electric Industrial Co., Ltd., Kadoma | Anodische Elektrode für Elektrolytkondensator und Verfahren zu ihrer Herstellung |
US6517892B1 (en) * | 1999-05-24 | 2003-02-11 | Showa Denko K.K. | Solid electrolytic capacitor and method for producing the same |
JP3718412B2 (ja) * | 2000-06-01 | 2005-11-24 | キャボットスーパーメタル株式会社 | ニオブまたはタンタル粉末およびその製造方法 |
US20030112577A1 (en) | 2001-10-02 | 2003-06-19 | Showa Denko K.K. | Niobium particle, niobium sintered body, niobium formed body and niobium capacitor |
US6865069B2 (en) | 2001-10-02 | 2005-03-08 | Showa Denko K.K. | Niobium powder, sintered body thereof, chemically modified product thereof and capacitor using them |
-
2002
- 2002-09-30 US US10/250,669 patent/US7361202B2/en not_active Expired - Lifetime
- 2002-09-30 WO PCT/JP2002/010151 patent/WO2003032342A1/en active Application Filing
- 2002-09-30 EP EP02770229A patent/EP1433187A4/en not_active Withdrawn
- 2002-09-30 CN CNB028036204A patent/CN100468586C/zh not_active Expired - Lifetime
- 2002-09-30 KR KR1020097019333A patent/KR101016658B1/ko active IP Right Grant
- 2002-09-30 KR KR1020037009369A patent/KR101016657B1/ko active IP Right Grant
- 2002-09-30 JP JP2003535215A patent/JP4396970B2/ja not_active Expired - Lifetime
- 2002-10-01 WO PCT/JP2002/010225 patent/WO2003032343A1/en active Application Filing
-
2009
- 2009-07-16 JP JP2009167469A patent/JP4809463B2/ja not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520430A (en) * | 1983-01-28 | 1985-05-28 | Union Carbide Corporation | Lead attachment for tantalum anode bodies |
JP2001155963A (ja) * | 1999-11-30 | 2001-06-08 | Showa Denko Kk | コンデンサ |
US6554884B1 (en) | 2000-10-24 | 2003-04-29 | H.C. Starck, Inc. | Tantalum and tantalum nitride powder mixtures for electrolytic capacitors substrates |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10290429B2 (en) | 2017-01-17 | 2019-05-14 | Kemet Electronics Corporation | Wire to anode connection |
Also Published As
Publication number | Publication date |
---|---|
CN100468586C (zh) | 2009-03-11 |
CN1484842A (zh) | 2004-03-24 |
JP4396970B2 (ja) | 2010-01-13 |
JP2009239312A (ja) | 2009-10-15 |
EP1433187A1 (en) | 2004-06-30 |
WO2003032342A1 (en) | 2003-04-17 |
KR101016657B1 (ko) | 2011-02-25 |
KR20090104144A (ko) | 2009-10-05 |
JP2005505933A (ja) | 2005-02-24 |
JP4809463B2 (ja) | 2011-11-09 |
EP1433187A4 (en) | 2007-10-24 |
US7361202B2 (en) | 2008-04-22 |
KR20040034593A (ko) | 2004-04-28 |
US20040052013A1 (en) | 2004-03-18 |
WO2003032343A1 (en) | 2003-04-17 |
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