Multi-layer blade fuse and the manufacturing method thereof

Abstract

The invention relates to the field of fuses, and particularly a multi-layer blade fuse and its manufacturing method. The said multi-layer blade fuse comprises a ceramic substrate, back electrodes, front electrodes, fuse wire, protective layers and metal ends, wherein the fuse wire is prepared in multiple layers and the adjacent layers of fuse wire are connected in a head-to-tail style; the two lead-outs of the fuse wire as a whole are respectively connected to the two front electrodes located at the two ends of the substrate, and each layer of the fuse wire is deposited with a protective layer. During manufacturing, all protective layers but the upmost one leave the tail of each layer of fuse wire uncovered so that the head-to-tail series connection is possible. Compared with the prior methods, the method disclosed herein is characteristic of simpler manufacturing processes, less investment on equipments and much shorter manufacturing duration, which consequently reduce the cost.

Dependencies are inferred from the claim text.