Breaking News
Comments
Newest First | Oldest First | Threaded View
WKetel
User Rank
Rookie
re: World's smallest MEMS mic debuts
WKetel   4/28/2011 8:57:23 PM
NO RATINGS
A smaller microphone could be quite useful in some previously unexplored applications. It could reduce the area needed in phones, BUT the one thing that this world would not gain any benefit at all from would be a smaller cell phone. My reasoning is thus: the microphone will be even farther from the speakers mouth, and the ear-piece volume will still be low, as a way to save battery power. The result will be even more people jabbering loudly on their cell phones, sharing details of their conversations with all the passers-by, who have no desire at all to be involved with the private lives of these cell phone users. So use the new small devices for new medical applications and new security systems applications, and even for new video game console applications, but not to make a smaller cell phone.

old account Frank Eory
User Rank
Rookie
re: World's smallest MEMS mic debuts
old account Frank Eory   4/1/2011 11:26:22 PM
NO RATINGS
Very exciting, although still rather pricey...

R_Colin_Johnson
User Rank
Blogger
re: World's smallest MEMS mic debuts
R_Colin_Johnson   4/1/2011 10:15:21 PM
NO RATINGS
Frequency response is unchanged at 50-to-22k Hz, facilitated by keeping the microphone diaphragm the same size for all but its first generation (see figure).

R_Colin_Johnson
User Rank
Blogger
re: World's smallest MEMS mic debuts
R_Colin_Johnson   4/1/2011 10:12:04 PM
NO RATINGS
Your reasoning is sound-and I concur-but Akustica has been ahead in die size from the beginning and keeps shrinking it ahead of competitors. Most cell phones, however, are buying their MEMS mics from Knowles Acoustics-their traditionally supplier of electret microphones. Akustica has yet to crack the cell phone market, but that may change now that they are a part of MEMS giant, Bosch Sensortec.

R_Colin_Johnson
User Rank
Blogger
re: World's smallest MEMS mic debuts
R_Colin_Johnson   4/1/2011 10:07:52 PM
NO RATINGS
More die per wafer means lower cost per die--yields being equal--but margins determine pricing. Akustica is quoting $1.30 in 10k quantities.

Robotics Developer
User Rank
Rookie
re: World's smallest MEMS mic debuts
Robotics Developer   3/30/2011 10:23:58 PM
NO RATINGS
I could see the move to smaller phones and perhaps using an array of mics for improved audio due to noise reductions (as stated above). The benefit is multi-faceted: smaller die = lower cost and better placement options due to PCB layout flexibility. does the new mic have better or worse frequency response?

GREAT-Terry
User Rank
CEO
re: World's smallest MEMS mic debuts
GREAT-Terry   3/30/2011 3:57:03 PM
NO RATINGS
It seems there is not a big architectural breakthrough but just another shrinking in geometry. So, I would expect more companies can build the same kind of MEMS mic in this size and soon the record can be broken by a smaller geometry. An era of mic array is here!

Silicon_Smith
User Rank
Rookie
re: World's smallest MEMS mic debuts
Silicon_Smith   3/30/2011 3:10:59 PM
NO RATINGS
Would there be any cost implications due to the technological rigour involved? What would be the impact on the yield? And will the discount due to more chips per wafer be helpful in bringing down the cost?

kdboyce
User Rank
Rookie
re: World's smallest MEMS mic debuts
kdboyce   3/30/2011 5:32:20 AM
NO RATINGS
Akustica's advantage going forward will be the ability to fit more mics into a given form factor, thus allowing more products to benefit from microphone arrays, with attendant ambient noise reduction on communication up-links and headphone and Bluetooth earphone products. With more mics, talker tracking becomes easier in conference situations.



Most Recent Comments
NIRANKUSH456
 
NIRANKUSH456
 
David Ashton
 
Rich Krajewski
 
sranje
 
MeasurementBlues
 
MeasurementBlues
 
Sanjib.A
 
David Ashton
Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Rishabh N. Mahajani, High School Senior and Future Engineer

Future Engineers: Don’t 'Trip Up' on Your College Road Trip
Rishabh N. Mahajani, High School Senior and Future Engineer
3 comments
A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

Max Maxfield

Juggling a Cornucopia of Projects
Max Maxfield
7 comments
I feel like I'm juggling a lot of hobby projects at the moment. The problem is that I can't juggle. Actually, that's not strictly true -- I can juggle ten fine china dinner plates, but ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
37 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Karen Field

July Cartoon Caption Contest: Let's Talk Some Trash
Karen Field
140 comments
Steve Jobs allegedly got his start by dumpster diving with the Computer Club at Homestead High in the early 1970s.

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)