Sunday, November 18, 2018
MEMs oscillator sensitivity to helium (helium kills iPhones)
I tested the 32KHz MEMs oscillator used in some phones, and discovered that just a 2% helium environment will cause the oscillator to fail. I also do a teardown of the MEMs device, and inspect it under the electron microscope.
iFixit blog post: https://ifixit.org/blog/11986/iphones-are-allergic-to-helium/ and vid: https://www.youtube.com/watch?v=D0YLW6v5hrA
Original thread about MRI facility and iPhone failure on Reddit: https://www.reddit.com/r/sysadmin/comments/9mk2o7/mri_disabled_every_ios_device_in_facility/
MEMs silicon encapsulation: http://micromachine.stanford.edu/~bongsang/pdf/Candler_2005_Transducers05_Hydrogen_diffusion_encapsulated.pdf
Applied Science on Patreon: https://www.patreon.com/AppliedScience
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Dear Mr. Ben Krasnow ,
ReplyDeleteHello, and warm greetings from Waterloo, Ontario, Canada.
I am very impressed with your otherwise famous channel ,
your passion for experimenting, and the quality of your
scientific insight into how physical phenomena work.
Among other scientists, my hero is Michael Faraday.
Dear Ben, I wonder if you would be interested
in trying to perform one of my experiment?
They are all simple and cheap, and I hope
you might find one of them worth trying :
https://quantumantigravity.wordpress.com/nobel-prize/
Unfortunately, I have neither the means,
nor any technical talent for performing experiments. :-((
Should you have any questions,
please do not hesitate to ask me.
Looking forward to hear from you !!
With respect and much gratitude, I am
Sincerely yours,
Ziggy
http://db.naturalphilosophy.org/member/?memberid=2608&subpage=contact