De-bouncing keypad and preparation method thereof
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United States of America Patent
Stats
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Mar 5, 2019
Grant Date -
May 11, 2017
app pub date -
Jul 15, 2015
filing date -
Jul 21, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention discloses a de-bouncing keypad and a preparation method thereof, wherein the keypad is composed of a rubber substrate and a metal contact having three layers of layered structures. A layer of tin alloy or lead alloy is plated on a surface of the metal contact by electroplating or chemical plating. The metal contact plated with the tin alloy or lead alloy has excellent contact bouncing resistance and arc-ablation resistance, and the metal contact is further composited with the rubber to shape and prepare the rubber de-bouncing keypad.
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International Classification(s)
- 2015 Application Filing Year
- C23C Class
- 3009 Applications Filed
- 2118 Patents Issued To-Date
- 70.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C23C Class
- 0 % this patent is cited more than
- 6 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 5, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 5, 2030 |
