Method and apparatus for making capacitive structure and laminat

Details Method and apparatus for making capacitive structure and laminat Method and apparatus for making capacitive structure and laminat

1990-12-26

1991-10-08

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

29 2542, 361323, H01G 408, H01G 430, H01G 114

Patent

active

050559656

ABSTRACT:
Method for making a capacitive structure. In a first mode, one coil of the interleaved webs is made from a laminate comprising a carrier tape, and two metallized, dielectric films, which may be ultra thin. One such web is wound into a coil. The other web and the carrier tape are twisted, by one half-turn, and wound over such one web and the carrier tape is peeled away so that the webs are interleaved. In a second mode, two coils of the interleaved webs are made from two laminates, each as described. One such web from one such laminate and one such web from the other laminate are wound into each coil so that the webs are interleaved. Techniques for providing each web with demetallized lanes and for slitting the webs into ribbons are disclosed. The carrier tape can be optionally omitted in some instances.

REFERENCES:
patent: 2565301 (1951-08-01), Foster et al.
patent: 2627645 (1953-02-01), Harris
patent: 3071842 (1963-01-01), Helda et al.
patent: 4462062 (1984-07-01), Rayburn
patent: 4531268 (1985-07-01), Rayburn
patent: 4533813 (1985-08-01), Rayburn
patent: 4756064 (1988-07-01), Yoshii et al.
patent: 4849853 (1989-07-01), Rayburn
patent: 4942610 (1990-07-01), Rayburn
patent: 4985512 (1991-01-01), Iizuka et al.
Miniature Capacitors, published by ITW Paktron of Lynchburg, Virginia in 1989.

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