Invention Grant
- Patent Title: Tantalum powder for the production of solid electrolyte capacitors
- Patent Title (中): 钽粉用于生产固体电解电容器
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Application No.: US11576718Application Date: 2005-09-24
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Publication No.: US07898794B2Publication Date: 2011-03-01
- Inventor: Helmut Haas , Ulrich Bartmann
- Applicant: Helmut Haas , Ulrich Bartmann
- Applicant Address: DE Goslar
- Assignee: H. C. Starck GmbH
- Current Assignee: H. C. Starck GmbH
- Current Assignee Address: DE Goslar
- Agency: Connolly Bove Lodge & Hutz LLP
- Priority: DE102004049040 20041008
- International Application: PCT/EP2005/010361 WO 20050924
- International Announcement: WO2006/037497 WO 20060413
- Main IPC: H01G9/042
- IPC: H01G9/042
Abstract:
A tantalum powder consisting of agglomerated primary particle with a minimum primary particle dimension of 0.2 to 0.8 μm, a specific surface area of 0.9 to 2.5 m2/g and a particle size distribution determined to ASTM B 822 corresponding to a D10 value of 5 to 25 μm, a D50 value of 20 to 140 μm and a D90 value of 40 to 250 μm, wherein the powder does not comprise an effective content of sintering protection agents.
Public/Granted literature
- US20080094779A1 Tantalum Powder for the Production of Solid Electrolyte Capacitors Public/Granted day:2008-04-24
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