Patent ID: 6310304
Filing Date: 2001-10-30
Classification: B82Y,H05K,Y10T

Abstract:
An electronic part made in accordance with a method comprising the steps of:transferring a first continuous conductor pattern onto a thermoplastic resin layer formed on a surface of a substrate by intaglio printing using an intaglio plate having a cured conductive paste therein which provides the first continuous conductor pattern, wherein the intaglio plate is a laser processed resin sheet having high flexibility and the cured conductive paste includes a plasticizer;forming an insulating layer which covers at least a portion of the first continuous conductor pattern and which forms an uncovered portion of the first continuous conductor pattern; andforming a second conductor pattern on a surface of the insulating layer,wherein the intaglio plate formed with the resin sheet of high flexibility provides a means for transferring the first continuous conductor pattern onto the thermoplastic resin layer formed on the surface of the substrate, where the thermoplastic resin layer and the surface of the substrate are undulating substrate surfaces, the first continuous conductor pattern has a trapezoidal cross-sectional shape, a bottom portion of the first continuous pattern adjacent the surface of the substrate being wider than a top portion of the first continuous conductor pattern, and the first continuous conductor pattern has a width adjacent the substrate of about 50 .mu.m or less, and has a thickness of about 5 .mu.m or more, andthe first continuous conductor pattern includes the plasticizer of the cured conductive paste.