Making a capacitor employing a temporary solid mask in the porou

Details Making a capacitor employing a temporary solid mask in the porou Making a capacitor employing a temporary solid mask in the porou

1977-02-03

1978-11-28

Esposito, Michael F.

Coating processes

Electrical product produced

Condenser or capacitor

427 79, 427226, 427259, 427261, 427346, 427430R, 427435, H01G 905, B05D 132

Patent

active

041276809

ABSTRACT:
Formed porous tantalum pellets each having an extending anode wire are lowered part way into a molten compound such as napthalene. The napthalene wicks its way into substantially all of the pellet pores. Upon removal from the bath the napthalene freezes within each pellet. A liquid insulating material is applied to the anode wire while being masked from entering the porous pellet by the napthalene. The napthalene is subsequently vaporized from the pores and thereafter manganous nitrate is introduced into the pellet and is pyrolyzed to form MnO.sub.2.

REFERENCES:
patent: 3438809 (1969-04-01), Kaueggia et al.
patent: 3817782 (1974-06-01), Klein et al.
patent: 3823347 (1974-07-01), Karlik
patent: 3948706 (1976-04-01), Schmeckenbecher
patent: 3967000 (1976-06-01), Klein et al.
patent: 4022928 (1977-05-01), Piwcyzk
patent: 4042420 (1977-08-01), Nishino et al.

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