Method for controlling electric resistance of a compound-type resistors
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsEishi Gofuku, Mitsuyuki Takada, Hayato Takasago
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Abstract
A method for controlling electric resistance of a compound-type resistant material is disclosed in which a laser beam is irradiated on a compound-type resistant material so as to cause a change in its chemical state whereby the specific resistance inherent to the compound-type resistant material is varied thereby to change its electric resistance in an appropriate manner. If necessary, a portion of the resistant material may be cut away by irradiation of a laser beam so as to further control the resistance value of the resistant material in an increasing sense.
Claims31
A method for controlling electric resistance of a compound-type resistor material comprising:
- irradiating a laser beam on a compound-type resistor material so as to cause a change in its chemical state and provide a desired value of electrical resistance anywhere within a range above and below a value of specific resistance inherent to said compound-type resistor material.
A method for controlling electric resistance of a compound-type resistor material comprising:
- a first step of irradiating a laser beam onto a compound-type resistor material to cut away a portion thereof, thus increasing its electric resistance;
- and
- a second step of irradiating a laser beam on said compound-type resistor material so as to cause a change in its chemical state and vary the specific resistance inherent to said compound-type resistor material to thereby change its electric resistance to a desired value.
Dependencies are inferred from the claim text.