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US 11,532,452 B2Granted
Protection device with laser trimmed fusible element
AssigneeLittelfuse, Inc.
InventorsP-A-Homer II Dela Torre, Roel Santos Retardo, Kent Harvey Mercado Berenguel
Life of this patent
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Abstract
Provided are trimmed parallel element protection devices. Some protection devices may include a substrate and first and second terminals at opposite ends of the substrate. The protection devices may further include a first fusible and a second fusible element extending between the first and second terminals, wherein at least one of the first and second fusible elements includes a trimmed portion.
Claims14
A protection device, comprising:
- a substrate;
- first and second terminals at opposite ends of the substrate;
- a first fusible element and a second fusible element extending between the first and second terminals, wherein at least one of the first and second fusible elements includes a trimmed portion, and wherein the second fusible element is formed atop the substrate;
- a first glass layer and a second glass layer positioned along a first main side of the substrate, wherein the first glass layer and the second glass layer are positioned over the second fusible element, and wherein the first fusible element is positioned between the first glass layer and the second glass layer;
- and
- a first lead and a second lead positioned along the first main side of the substrate, wherein the first lead electrically connects the first fusible element to the first terminal, wherein the second lead electrically connects the first fusible element to the second terminal, and wherein the first lead and the second leads are formed directly atop the first fusible element.
3 more elements
A fusible device, comprising:
- a substrate;
- first and second terminals at opposite ends of the substrate;
- a first fusible element and a second fusible element extending between the first and second terminals, wherein at least one of the first and second fusible elements includes a trimmed portion including one or more recesses formed into an exterior surface, and wherein the second fusible element is formed atop the substrate;
- a first glass layer and a second glass layer positioned along a first main side of the substrate, wherein the first glass layer and the second glass layer are positioned over the second fusible element, and wherein the first fusible element is positioned between the first glass layer and the second glass layer;
- a first lead and a second lead positioned along the first main side of the substrate, wherein the first lead electrically connects the first fusible element to the first terminal, wherein the second lead electrically connects the first fusible element to the second terminal, and wherein the first lead and the second leads are formed directly atop the first fusible element.
2 more elements
Dependencies are inferred from the claim text.