Flexible printed circuit and process for producing the same

Details Flexible printed circuit and process for producing the same Flexible printed circuit and process for producing the same

1997-12-24

1999-12-14

Jones, Deborah

Stock material or miscellaneous articles

Composite

Of metal

428418, 428901, 174254, 174258, B32B 1508

Patent

active

06001489&

ABSTRACT:
A flexible printed circuit comprising a plastic film and a conducting layer, wherein the plastic film exhibits a heat shrinkage rate ellipse having an eccentricity of not more than 0.7 and preferably exhibits an ultrasonic wave propagation rate ellipse having an eccentricity of not more than 0.4 and a polarized microwave transmission intensity ellipse having an eccentricity of not more than 0.55. The flexible printed circuit has improved dimensional accuracy owing to the dimensional stability of the plastic film.

REFERENCES:
patent: 4592623 (1986-06-01), Yamamoto et al.
patent: 4719495 (1988-01-01), Ohuchi et al.
patent: 5700562 (1997-12-01), Sugimoto et al.
patent: 5814393 (1998-09-01), Miyaake et al.

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