Abstract: Provided is a chip fuse and a method for producing the same, which is improved to facilitate balanced release of impact and vapor generated upon fusion. The chip fuse includes a fuse body having a pair of facing upper and lower ceramic substrates, a fuse wire support having a vertical through hole in its center and held between the ceramic substrates, and a fuse wire mounted between the two ends of the fuse wire support across the through hole, and a pair of metal caps fitted on the two ends of the fuse body, wherein the upper ceramic substrate and the fuse wire support, and the lower ceramic substrate and the fuse wire support, are respectively adhered together on their mutually facing surfaces to hermetically close the through hole, partially leaving a non-adhered region on the adhered surfaces.

Abstract: The chip resistor includes insulating substrate 10, first and second top electrodes (11x, 11b) on the top surface of the insulating substrate each on either longitudinal end thereof, and resistive element 12 electrically in contact with the top electrodes, wherein each of the top electrodes has, on its inner side facing to the other, cutout part 11a and protruding part 11b, with the cutout part in the first top electrode extending from at least one longitudinal side of the insulating substrate, transversely inwards thereof, and with the cutout part in the second top electrode arranged substantially point-symmetrically to the cutout part in the first top electrode with respect to the center of the insulating substrate, wherein the resistive element has contacting regions 12b, and non-contacting regions 12c, and trimming slot (53a, 53b) including a linear part.

Abstract: In a chip fuse, a heat-storing layer is formed on an insulated substrate, a fuse film is formed on the heat-storing layer, and a protective film is formed on the fuse element section. The chip fuse includes surface electrode sections on both ends in the length direction of the chip fuse and a fuse element section between the surface electrode sections. In this chip fuse, a rectangular bank section is formed over the heat-storing layer and the surface electrode sections to surround the fuse element section, and a first protective layer is formed on the inner side of the bank section. In addition, during the bank formation process, a sheet-like photosensitive-group-containing material is laminated on the fuse element section, surface electrode sections, and heat-storing layer, and the sheet-like photosensitive-group-containing material is exposed to ultraviolet light and developed to form the rectangular bank section.

Abstract: In a chip fuse, a heat-storing layer is formed on an insulated substrate, a fuse film is formed on the heat-storing layer, and a protective film is formed on the fuse element section. The chip fuse includes surface electrode sections on both ends in the length direction of the chip fuse and a fuse element section between the surface electrode sections. In this chip fuse, a rectangular bank section is formed over the heat-storing layer and the surface electrode sections to surround the fuse element section, and a first protective layer is formed on the inner side of the bank section. In addition, during the bank formation process, a sheet-like photosensitive-group-containing material is laminated on the fuse element section, surface electrode sections, and heat-storing layer, and the sheet-like photosensitive-group-containing material is exposed to ultraviolet light and developed to form the rectangular bank section.

Abstract: The object of the invention is to provide a method and an apparatus that allow production of metal plate chip resistors having a relatively low resistance with high accuracy and yield through simple process. The object is achieved by apparatus for manufacturing metal plate chip resistors including cutting mold for cutting intermediate product strip transversely to obtain worked product chip, ohm meter for measuring the resistance of the worked product chip, control device having a calculating part for performing a calculation using the resistance measured by the ohm meter to work out a width in which the strip is to be cut transversely so as to obtain a worked product chip of a desired resistance, and cutting width adjustor for making an adjustment so that the strip is to be cut transversely in the width obtained from the calculating part.

Abstract: The object of the invention is to provide a method and an apparatus that allow production of metal plate chip resistors having a relatively low resistance with high accuracy and yield through simple process. The object is achieved by apparatus for manufacturing metal plate chip resistors including cutting mold for cutting intermediate product strip transversely to obtain worked product chip, ohm meter for measuring the resistance of the worked product chip, control device having a calculating part for performing a calculation using the resistance measured by the ohm meter to work out a width in which the strip is to be cut transversely so as to obtain a worked product chip of a desired resistance, and cutting width adjustor for making an adjustment so that the strip is to be cut transversely in the width obtained from the calculating part.

Abstract: The object of the invention is to provide a method and an apparatus that allow production of metal plate chip resistors having a relatively low resistance with high accuracy and yield through simple process. The object is achieved by apparatus 10 for manufacturing metal plate chip resistors including cutting mold 21 for cutting intermediate product strip 14 transversely to obtain worked product chip 16a, ohm meter 22 for measuring the resistance of the worked product chip 16a, control device 23 having a calculating part for performing a calculation using the resistance measured by the ohm meter 22 to work out a width in which the strip 14 is to be cut transversely so as to obtain a worked product chip of a desired resistance, and cutting width adjusting means 26, 27 for making an adjustment so that the strip 14 is to be cut transversely in the width obtained from the calculating part.

Abstract: The object of the invention is to provide a method and an apparatus that allow production of metal plate chip resistors having a relatively low resistance with high accuracy and yield through simple process. The object is achieved by apparatus 10 for manufacturing metal plate chip resistors including cutting mold 21 for cutting intermediate product strip 14 transversely to obtain worked product chip 16a, ohm meter 22 for measuring the resistance of the worked product chip 16a, control device 23 having a calculating part for performing a calculation using the resistance measured by the ohm meter 22 to work out a width in which the strip 14 is to be cut transversely so as to obtain a worked product chip of a desired resistance, and cutting width adjusting means 26, 27 for making an adjustment so that the strip 14 is to be cut transversely in the width obtained from the calculating part.

Abstract: A method for manufacturing rectangular plate type chip resistors and a rectangular plate type chip resistor obtained by this method. The method includes the steps of (A) providing a resistive alloy plate strip of predetermined width and thickness, (B) forming an insulating protective film of a predetermined width longitudinally along the middle of upper and lower faces of the alloy plate strip, (C) forming an electrode layer composed of integrated surface, back, and end electrodes, along both sides of the protective film by electroplating, and (D) cutting the alloy plate strip coated with the protective films and the electrode layers in step (C) transversely in predetermined lengths, wherein resistance is controlled to be within a predetermined range by adjusting the thickness of the alloy plate strip in step (A), the width of the protective film formed in step (B), and the cutting length in step (D).

Abstract: The object of the invention is to provide a method and an apparatus that allow production of metal plate chip resistors having a relatively low resistance with high accuracy and yield through simple process. The object is achieved by apparatus 10 for manufacturing metal plate chip resistors including cutting mold 21 for cutting intermediate product strip 14 transversely to obtain worked product chip 16a, ohm meter 22 for measuring the resistance of the worked product chip 16a, control device 23 having a calculating part for performing a calculation using the resistance measured by the ohm meter 22 to work out a width in which the strip 14 is to be cut transversely so as to obtain a worked product chip of a desired resistance, and cutting width adjusting means 26, 27 for making an adjustment so that the strip 14 is to be cut transversely in the width obtained from the calculating part.

Abstract: A chip resistor comprising an insulated substrate, a pair of top electrodes disposed on top of said insulated substrate, a resistor film bridging said pair of top electrodes, a protective film coating said resistor film, and an end electrode and a plated electrode film which are formed on each of said pair of top electrodes, wherein each of said top electrodes includes:a first electrode section connected to said resistor film; anda second electrode section not in direct contact with said resistor film and arranged in connection to and along said first electrode section so as to extend in parallel with a portion of said first electrode section between said resistor film and said end electrode, said second electrode section having a sheet resistivity lower than that of said first electrode section.