Method for making a circuit board and article made thereby
First Claim
1. A method for making a circuit board having conductive circuit elements with a specific resistivity of less than 10 ohm-cm patterned on a nonconductive substrate, which comprises,printing a radiation curable ink onto the nonconductive substrate to a desired circuit pattern, andeffecting the radiation cure of the radiation curable ink, where said radiation curable ink comprises by volumeA. from about 10% to 60% of an organic resin binder having a viscosity of from 50 to 10,000 centipoises at 25°
- C., andB. from about 90% to 40% of a particulated electrically conductive metal containing material substantially free of metal containing material having an aspect ratio of diameter to thickness of a value greater than 20.
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Accused Products
Abstract
A method is provided for making a circuit board involving the screen printing of a radiation curable ink onto the surface of a substrate followed by the radiation cure of the ink. A photoflash circuit board array made by such method is also provided.
89 Citations
9 Claims
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1. A method for making a circuit board having conductive circuit elements with a specific resistivity of less than 10 ohm-cm patterned on a nonconductive substrate, which comprises,printing a radiation curable ink onto the nonconductive substrate to a desired circuit pattern, andeffecting the radiation cure of the radiation curable ink, where said radiation curable ink comprises by volume
A. from about 10% to 60% of an organic resin binder having a viscosity of from 50 to 10,000 centipoises at 25° - C., and
B. from about 90% to 40% of a particulated electrically conductive metal containing material substantially free of metal containing material having an aspect ratio of diameter to thickness of a value greater than 20. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- C., and
Specification