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US 5,623,724 AGranted
High power capacitor
AssigneeNorthrop Grumman Corporation
InventorsStephen R. Gurkovich, Kenneth C. Radford, Deborah P. Partlow
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Abstract
A ceramic capacitor suitable for high energy density and high temperature application is disclosed. Such a capacitor is prepared by producing the selected ceramic powder via the sol-gel process forming the capacitor to the desired shape with the resulting powder using tape casting technology and firing the "green" form so produced.
Claims14
A method of manufacturing a ceramic capacitor suitable for high energy density and high temperature application characterized by the fact of
- a. producing the appropriate oxide powders using the sol-gel process and mechanically mixing the powders,
- b. calcining the mixture to remove organics and obtain the desired phase,
- c. milling the resulting ceramic powder to deagglomerate the powder and obtain a desired particle size,
- d. forming a slip with said ceramic powder with a binder and a volatile solvent,
- e. casting the slip on a moving surface to form a thin tape,
- f. drying said tape to form a flexible ceramic tape,
- g. screen printing a conductor thereon and pre-forming the desired capacitor structure, and
- h. firing the structure to produce the desired sintered capacitor form.
5 more elements
A method of manufacturing a ceramic capacitor, said method comprising the steps of:
- precipitating oxide powders using a sol-gel process;
- using said oxide powders to form a ceramic tape;
- applying conductors to the ceramic tape and pre-forming a desired capacitor structure;
- and
- firing the structure to produce a sintered film capacitor.
2 more elements
Dependencies are inferred from the claim text.