Resistor and manufacturing method of resistor
AssigneeKoa Corporation
InventorsKohji Eto, Yohei Tokiwa, Reina Kaneko, Jumpei Yamamoto
Life of this patent
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Abstract
A resistor is provided with a resistance body and a pair of electrodes connected to the resistance body (a first electrode body, a second electrode body), the resistance body being arranged so as to be at least separated away from a substrate board (a circuit board) when mounted on the substrate board (the circuit board), wherein the resistor has the oxide film on at least one of the resistance body and each of the electrodes (the first electrode body, the second electrode body) at a boundary portion (a bonded portion, a bonded portion) between the resistance body and each of the electrodes (the first electrode body, the second electrode body) on the mounting surface of the resistor.
Claims7
A resistor comprising a resistance body and a pair of electrodes connected to the resistance body, the resistance body being arranged so as to be at least separated away from a substrate board when mounted on the substrate board, wherein
- the resistance body and each of the electrodes are directly bonded with each other, and
- the resistor has an oxide film due to oxidation of the resistance body or the electrode on at least one surface of the resistance body and each of the electrodes at a boundary portion between the resistance body and each of the electrodes on a mounting surface of the resistor.
A manufacturing method of a resistor provided with a resistance body and a pair of electrodes connected to the resistance body, the resistance body being arranged so as to be at least separated away from a substrate board when mounted on the substrate board, the manufacturing method comprising:
- a step of directly bonding the resistance body and each of the electrodes with each other, the directly bonding being a solid layer bonding, and
- a step of forming an oxide film by irradiating laser on at least one surface of the resistance body and each of the electrodes at a boundary portion between the resistance body and each of the electrodes on a mounting surface of the resistor.
Dependencies are inferred from the claim text.