High-voltage capacitor manufacturing method and high-voltage cap

Details High-voltage capacitor manufacturing method and high-voltage cap High-voltage capacitor manufacturing method and high-voltage cap

1995-02-17

1996-12-24

Phillips, Michael W.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361303, 3613061, 361307, 361309, 3613081, H01G 4002, H01G 4005, H01G 4224

Patent

active

055878695

ABSTRACT:
A high-voltage capacitor is not deteriorated by any of a laser medium gas, ultraviolet rays, and discharge plasma of a gas laser device. Inside a hermetic casing is stored a capacitor body having an electrode which is connected to an external terminal. The external terminal includes a passageway therein which makes the inside of the hermetic casing communicate with the outside of the hermetic casing. The external terminal is led to the outside of the hermetic casing from the capacitor electrode, and gas inside the hermetic casing is discharged through the passageway of the external terminal to achieve a reduced pressure. Thereafter, the inside of the hermetic casing is filled with an insulating protection material. With the hermetic casing being made of alumina and the electrode terminal plated with nickel, deterioration due to ultraviolet rays or discharge plasma generated by an electric discharge of the laser device is prevented, thereby not contaminating the ambient gas.

REFERENCES:
patent: 4221033 (1980-09-01), Tobayashi
patent: 4771363 (1988-09-01), Kellerman
patent: 4931899 (1990-06-01), Pruett
Ziarno, G.: Silikone fur das Einbetten und Umhullen electronischer Bauelemente [Silicone for Embedding and Encasing Electronic Components]: Electronik, 1968, No. 2, pp. 33-36.
Heitz, E.: Einbettmassen mit geringer Dichte fur elektronische Bauteile [Embedding Materials with Low Density for Electronic Components]. In: Electronik Industrie 1972, No. 5/6, pp. EP 41-EP 45.

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