PROTECTIVE DEVICE
First Claim
1. A protective device, comprising:
- a substrate;
two first electrodes respectively arranged at two opposite sides of the substrate;
a low-melting point metal layer arranged over the two first electrodes; and
an assisting layer formed on the low-melting point metal layer,wherein the liquidus temperature of the assisting layer is below the liquidus temperature of the low-melting point metal layer, and the liquidus temperature of the assisting layer is not below a predetermined temperature, the predetermined temperature is below the maximum working temperature of reflow soldering process by 25 degrees.
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Accused Products
Abstract
A protective device includes a substrate, two first electrodes, a low-melting point metal layer and an assisting layer. The first electrodes are respectively arranged at two opposite sides of the substrate. The low melting point metal layer is arranged over the two first electrodes. The assisting layer is formed on the low melting point metal layer. The liquidus temperature of the assisting layer is below the liquidus temperature of the low melting point metal layer, and the liquidus temperature of the assisting layer is not below a predetermined temperature which is below the maximum working temperature of reflow soldering process by 25 degrees.
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Citations
18 Claims
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1. A protective device, comprising:
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a substrate; two first electrodes respectively arranged at two opposite sides of the substrate; a low-melting point metal layer arranged over the two first electrodes; and an assisting layer formed on the low-melting point metal layer, wherein the liquidus temperature of the assisting layer is below the liquidus temperature of the low-melting point metal layer, and the liquidus temperature of the assisting layer is not below a predetermined temperature, the predetermined temperature is below the maximum working temperature of reflow soldering process by 25 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A protective device, comprising:
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a substrate; a low-melting point metal layer arranged over the substrate; an assisting layer formed on the low-melting point metal layer; a bridging structure crossing the low melting point metal layer; and a heating member arranged on the substrate, wherein the liquidus temperature of the assisting layer is below the liquidus temperature of the low-melting point metal layer, and the liquidus temperature of the assisting layer is not below a predetermined temperature, the predetermined temperature is below the maximum working temperature of reflow soldering process by 25 degrees. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification