Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 3, 2009
Patent Application Number
10828789
Date Filed
April 21, 2004
Patent Primary Examiner
Patent abstract
Methods of forming sintered valve metal are described. The methods involve sintering a valve metal such as tantalum or niobium in the presence of an iodine source. The method optionally includes deoxidizing the metal using the same equipment used in sintering and/or as a combined step. The sintered valve metal formed by the methods of the present invention preferably has relatively large pores and other properties desirable for making capacitors that have high capacitance and low leakage.
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