MICRO-ELECTRO-MECHANICAL SYSTEM MICROPHONE CHIP WITH AN EXPANDED BACK CHAMBER
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 25, 2013
app pub date -
Oct 21, 2011
filing date -
Oct 21, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A MEMS microphone chip with an expanded chamber comprises a base plate, and the base plate has a main chamber and a secondary chamber. The secondary chamber is formed beside the main chamber, and is connected to the main chamber. A vibration membrane is suspended above the main chamber for receiving external sound waves, and the vibration membrane vibrates in corresponding to the chambers. The MEMS microphone chip has a higher sensitivity because of the expanded chamber, and therefore has a more ideal audio frequency response curve.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully