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Materials & Assembly

ST Packages MEMS Microphones in Plastic

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Ann R. Thryft
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Which metal and plastic materials?
Ann R. Thryft   6/6/2012 12:16:34 PM
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Peter, does "flat-cable printed circuit boards" mean flex circuits? And do you know what kind of plastic is used vs which metal in the drop tests? I'm  really interested in learning which plastic outperformed which metal.

William K.
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Plastic microphones
William K.   6/7/2012 8:10:47 PM
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I was also wondering about "flat cable circuit boards". I also wonder what these microphones sound like. My recollection from years past is that plastic microphones and hgh fidelity are mutually exlusive. So it will indeed be interesting to hear a demonstration of what they sound like, and to read some published specifications.

Ann R. Thryft
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Re: Plastic microphones
Ann R. Thryft   6/11/2012 12:01:51 PM
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I have a similar memory about plastic anything not playing well with good sound quality in general. ST usually gives a lot of spec info onsite. For this product, they are here:
http://www.st.com/internet/analog/subclass/1564.jsp

Charles Murray
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Re: Which metal and plastic materials?
Charles Murray   6/11/2012 7:22:17 PM
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I wonder how that 40 N force compares to other MEMS microphones. It sounds like a lot.

Ann R. Thryft
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Re: Which metal and plastic materials?
Ann R. Thryft   6/12/2012 12:03:28 PM
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Good question, Chuck. There's probably (at least one) central repository of such specs somewhere on the web.

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