Micro-reed switch with high current carrying capacity and manufacturing method thereof
AssigneeNational Tsing Hua University
InventorsYu-Che Huang, Fu-Ming Hsu, Wei-Leun Fang
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Abstract
A micro-reed switch includes a first magnetic reed and a second magnetic reed. The first magnetic reed includes a first metal electrode and a first non-wettable area. The first metal electrode includes a liquid metal. The second magnetic reed includes a second metal electrode and a second non-wettable area. The first magnetic reed and second magnetic reed is parallel to each other and a gap is defined there between. When a magnetic field is available, the liquid metal and the second metal electrode are engaged with one another by a magnetic force of the magnet.
Claims20
A micro-reed switch comprising:
- a first magnetic reed comprising:
- a first metal electrode having a liquid metal and being disposed at a leading edge of the first magnetic reed;
- and
- a first non-wettable area having a first conductor connected to the liquid metal and being disposed at a trailing edge of the first magnetic reed;
- and
- a second magnetic reed parallel to the first magnetic reed and separated from the first magnetic reed, the second magnetic reed comprising:
- a second metal electrode corresponding to the first metal electrode and being disposed at a leading edge of the second magnetic reed;
- and
- a second non-wettable area being disposed at a trailing edge of the second magnetic reed and comprising a second conductor connected to the second metal electrode such that when there is a magnetic field, the liquid metal and the second metal electrode engage with one another by a magnetic force of the magnet field and when the magnetic field is not available, the liquid metal and the second metal electrode are separated from each other by a resilience of the first magnetic reed and the second magnetic reed.
A manufacturing method of a micro-reed switch with high current carrying capacity, the method comprising the steps of:
- forming a first magnetic reed and a second magnetic reed;
- depositing a first metal electrode and a first conductor on the first magnetic reed and a second metal electrode and a second conductor on the second magnetic reed;
- defining a first non-wettable area on the first magnetic reed and a second non-wettable area on the second magnetic reed;
- hanging the first magnetic reed and the second magnetic reed to define a distance between the first magnetic reed and the second magnetic reed;
- dispensing a liquid metal to the first metal electrode;
- and
- sealing the first magnetic reed and the second magnetic reed to form a micro-reed switch.
Dependencies are inferred from the claim text.