Printed circuit board having printed resistors and method of mak

Details Printed circuit board having printed resistors and method of mak Printed circuit board having printed resistors and method of mak

Filed on

1995-12-19

Date issued

1999-08-03

Examiner

Talbot, Brian K.

Patent Class

Coating processes

SubClass

Electrical product produced

SubSubClass

Resistor for current control

Other Related Categories

427101, 427146, B05D 512

Type

Patent

Status

active

Patent number

059322802

Description

ABSTRACT:
Resistors for a printed circuit board and methods for making are provided using thermal transfer techniques to transfer coating material having some degree of electrical conductivity from a thermal transfer ribbon to the printed circuit board. Parts of the coating material transferred to the printed circuit board form resistors having varying resistances based on the geometry of the material transferred. Multiple ribbons having coatings with varying degrees of electrical conductivity may also be used to provide greater variances in resistor values obtainable.

REFERENCES:
patent: 3909680 (1975-09-01), Tsunashima
patent: 4722765 (1988-02-01), Ambros et al.
patent: 4991287 (1991-02-01), Piatt et al.
patent: 5379190 (1995-01-01), Hanamura et al.
patent: 5826329 (1998-10-01), Roth

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