Fuse element, fuse device, and protective device
AssigneeDexerials Corporation
InventorYoshihiro Yoneda
Life of this patent
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Abstract
A fuse element as well as a fuse device and protective device using the same which are capable of suppressing generation of defects such as cracks in a high melting point metal layer, maintaining good conduction, and maintaining blowout properties. The fuse element includes a laminated low melting point metal layer and high melting point metal layer and at least one peak among peaks in an X-ray diffraction spectrum (2θ) of a surface of the high melting point metal layer has a full width at half maximum of 0.15 degrees or less.
Claims9
A fuse element having a low melting point metal layer and a high melting point metal layer which are laminated, wherein at least one peak among peaks in an X-ray diffraction spectrum (2θ) of a surface of the high melting point metal layer has a full width at half maximum of 0.15 degrees or less.
A method for manufacturing a fuse element comprising:
- a laminating step of laminating a high melting point metal layer and a low melting point metal layer;
- and
- a heating step of heating the high melting point metal layer to a temperature of at least 120° C. and at most a melting point of the low melting point metal layer.
Dependencies are inferred from the claim text.