0

Full Content is available to subscribers

Subscribe/Learn More  >

A Bio-Inspired Miniature Comb Sense Differential Microphone Diaphragm

[+] Author Affiliations
Weili Cui, Ronald N. Miles, Quang Su, Dorel Homentcovsci

State University of New York at Binghamton, Binghamton, NY

Paper No. IMECE2010-38179, pp. 143-148; 6 pages
doi:10.1115/IMECE2010-38179
From:
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 10: Micro and Nano Systems
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4447-2
  • Copyright © 2010 by ASME

abstract

A highly innovative miniature silicon comb sense differential microphone diaphragm is described that is highly stable when subjected to various bias voltages [1]. The bio-inspired microphone diaphragm consists of a 1mm by 2mm stiffener-reinforced plate fabricated out of phosphorous doped polysilicon that is supported on a central hinge [2, 3, and 4]. Interdigitated comb fingers are formed around the perimeter at the ends of the diaphragm by reactive ion etching the polysilicon to create the gaps between the two sets of comb fingers. It is demonstrated with a fabricated prototype device that this design avoids many key limitations of capacitive microphones through use of a unique comb-sensing design and approach. It provides the means for design and construction of highly innovative capacitive microphones with enhanced sensitivity that can be readily and cost-effectively produced through silicon microfabrication. Potential applications include manufacturing of next-generation hearing aids, security devices, portable digital devices, cell phones and teleconferencing equipment.

Copyright © 2010 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In