Method for making resistors
AssigneeRalec Electronic Corporation
InventorsWan-Ping WANG, Chen-Ling TSAI
Life of this patent
Estimating the term…
Abstract
A method for making resistors includes: forming a protective layer on a metal plate; patterning the metal plate to form a plurality of spaced-apart resistor wires; forming a plurality of bottom parts on the metal plate, each of the bottom parts covering a portion of a respective one of the resistor wires such that the respective resistor wire defines two opposite electrode forming regions; laser-marking the protective layer to form a plurality of identification codes; laser-cutting the protective layer and the metal plate to form a plurality of spaced-apart pre-formed resistors; and forming two terminal electrodes respectively on the two opposite electrode forming regions of each of the resistor wires.
Claims7
A method for making resistors, comprising:
- forming a protective layer on a front surface of a metal plate, the protective layer being made of a first electrically insulating material;
- patterning a rear surface of the metal plate to form a plurality of spaced-apart resistor wires;
- forming a plurality of bottom parts on the rear surface of the metal plate, each of the bottom parts covering a portion of a respective one of the resistor wires such that the respective resistor wire defines two opposite electrode forming regions that are exposed from the bottom part, the bottom parts being made of a second electrically insulating material;
- laser-marking the protective layer to form a plurality of identification codes, each of which corresponds in position to a respective one of the resistor wires;
- laser-cutting the protective layer and the metal plate to form a plurality of spaced-apart pre-formed resistors, each of which includes an upper part defined by the protective layer, a respective one of the identification codes marked on the protective layer, a respective one of the resistor wires, and the respective bottom part covering the resistor wire;
- and
- forming two terminal electrodes respectively on the two opposite electrode forming regions of each of the resistor wires.
Dependencies are inferred from the claim text.