From Newsgroup: sci.electronics.design

World's smallest QR code, smaller than bacteria, could store data for centuries A record-breaking microscopic QR code could make data storage last for centuriesrCono electricity required.
Date:
March 29, 2026
Source:
Vienna University of Technology
Summary:
Scientists have created a microscopic QR code so tiny it can only be seen with an electron microscoperCo
smaller than most bacteria and now officially a world record.
But this isnrCOt just about size; itrCOs about durability.
By engraving data into ultra-stable ceramic materials,
the team has opened the door to storing information that could last for centuries or even millennia without needing power or maintenance.

Wait for it to be in the shops ?
My M-Discs also last hundreds of years:
https://en.wikipedia.org/wiki/M-DISC
So, and how about storing data in DNA?

And I do not like QR codes - the use of those - on phones
as I cannot see what website or whatever it will take me to.


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From Newsgroup: sci.electronics.design

Jan Panteltje <alien@comet.invalid>wrote:

World's smallest QR code, smaller than bacteria, could store data for centuries

A record-breaking microscopic QR code could make data storage last for centuriesrCono electricity required.
Date:
March 29, 2026
Source:
Vienna University of Technology
Summary:
Scientists have created a microscopic QR code so tiny it can only be seen with an electron microscoperCo
smaller than most bacteria and now officially a world record.
But this isnrCOt just about size; itrCOs about durability.
By engraving data into ultra-stable ceramic materials,
the team has opened the door to storing information that could last for centuries or even millennia without needing power or
maintenance.

Forgot the link:
https://www.sciencedaily.com/releases/2026/03/260328043603.htm
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From Newsgroup: sci.electronics.design

On 1/04/2026 6:36 pm, Jan Panteltje wrote:

Jan Panteltje <alien@comet.invalid>wrote:

World's smallest QR code, smaller than bacteria, could store data for centuries

A record-breaking microscopic QR code could make data storage last for centuriesrCono electricity required.
Date:
March 29, 2026
Source:
Vienna University of Technology
Summary:
Scientists have created a microscopic QR code so tiny it can only be seen with an electron microscoperCo
smaller than most bacteria and now officially a world record.
But this isnrCOt just about size; itrCOs about durability.
By engraving data into ultra-stable ceramic materials,
the team has opened the door to storing information that could last for centuries or even millennia without needing power or
maintenance.

Forgot the link:
https://www.sciencedaily.com/releases/2026/03/260328043603.htm

Electron beam microfabricators can write finer patterns, and faster that
ion beams. Electron sensitive resists aren't all that stable, but if you
put it on a thin metal layer (as you do when you are making masks to
create integrated circuits) you can etch through the unexposed resist
and look at the metal film that wasn't etched away.

https://en.wikipedia.org/wiki/Electron-beam_lithography

It's not a great write up.
--
Bill Sloman, Sydney
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From Newsgroup: sci.electronics.design

"Research studies, anecdotal information and manufacturersrCO literature suggest that the lifetime of recordable optical discs can range from a
couple of years to more than 200 years."
says HTTPS://WWW.Canada.Ca/en/conservation-institute/services/conservation-preservation-publications/canadian-conservation-institute-notes/longevity-recordable-cds-dvds.html
(S. HTTP://Gloucester.Insomnia247.NL/ fuer Kontaktdaten!)
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