Back to results
US 5,844,477 AGranted
Method of protecting a surface-mount fuse device
AssigneeLittelfuse, Inc.
InventorsVladmir Blecha, Katherine M. McGuire, Andrew J. Neuhalfen, Daniel B. Onken
Life of this patent
Estimating the term…
Abstract
A thin film surface-mount fuse having two material subassemblies. The first subassembly includes a fusible link, its supporting substrate and terminal pads. The second subassembly includes a protective layer which overlies the fusible link so as to provide protection from impacts and oxidation. The protective layer is preferably made of a polymeric material. The most preferred polymeric material is a polycarbonate adhesive. In addition, the most preferred supporting substrate is an FR-4 epoxy or a polyimide.
Claims8
A thin film surface-mount fuse, said fuse comprising:
- a. a substrate having an upper surface;
- b. a fusible link made of a first conductive metal deposited on the upper surface of the substrate;
- c. a second conductive metal, other than the first conductive metal, deposited on the surface of the fusible link;
- d. terminal pads electrically connected to the fusible link, the terminal pads having a plurality of conductive layers, wherein a first of the plurality of conductive layers and the fusible link form a single continuous film.
1 more element
Dependencies are inferred from the claim text.