L.c.c.-c.i.c.e.-compagnie Europeenne De Composants Electroniques

Daniel Bernard

Jean C Dubois

A process for the production of laminated capacitors constituted by a stack of dielectric layers separated by metallic foils or plates, those of the even and uneven rows being respectively interconnected by lateral electrical connections. A plurality of juxtaposed master capacitors is produced on a large diameter wheel and a common intercalated layer is used between two successive stacks of master capacitors. The separation of the master capacitor stacks takes place after metal spraying 1 of the lateral edges of the group, so as to maintain the equilibrium thereof and permit the metal spraying of the other lateral edge prior to the separation of the master capacitors and optional cutting up into individual capacitors.

Process for the production of a laminated capacitor

In a method of continuous fabrication of mother-capacitors, a mother-film of substantial width is first metallized and cut so as to form intermediate films. A border is then formed on each intermediate film by means of a YAG-laser beam. Each intermediate film is then cut so as to form individual films by means of a CO.sub.2 -laser beam, the beam spot being located in proximity to the YAG-laser beam spot on the intermediate film. After relative displacement of the individual films, they are wound on a wheel of substantial width so as to form an array of n mother-capacitors. A single intercalary element is placed between two tiers of an assembly of m mother-capacitors, thus endowing the assembly with good stability. The two outer rings of mother-capacitors are finally cut-out after spray-coating.

Method of continuous fabrication of mother-capacitors

A metalized film for constructing capacitors formed from a flexible dielectric support medium comprising on at least one of its faces metalized parallel strips partially covered by lacquer strips parallel to the preceding ones, two successive metalized strips being partially covered by a lacquer strip whereas two successive lacquer strips partially cover the same metalized strip.

Metalized film for constructing capacitors and a process for

A process is provided for producing a wound capacitor in which at least two films of metal coated dielectric material are wound one on the other, the metal layers forming the plates of said capacitor whose instantaneous capacity is measured by means of a bridge. When the capacity measured is close to but slightly less than the desired capacity, partial stripping of the metal from one of the metal coated films is effected, so as to maintain thereon a metal coated strip, connected electrically to the corresponding plate of the capacitor and allowing the value of the desired capacity to be adjusted accurately without slowing down the winding speed of said capacitor.

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Seurre, France

Daniel Bernard