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In 2006, Hitachi developed a 0.15mm-sized RFID chip

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Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#51

Post by nutjob2 »

portaouflop wrote: post #36
nutjob2 wrote: post #35

Earlier quoted context omitted.

For those not familiar with using powered drugs nasally, a credit or debit card is also usually a part of the drug taking toolkit. Its one of those odd occasions when you need both cash and credit.

You usually keep the credit card though and not hand it to someone for a drink 5 minutes later. Using banknotes is not advisable anyway. If you need to do this shit be smart about it.

True and so probably a lower percentage of cards have cocaine on them, but they do share contact points such as swipes and touches.

Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#52

Post by Nextgrid »

paulgerhardt wrote: post #42
tiku wrote: post #22

This is what is in euro bills right?

Years later we put a newer version of this chip with a secure element into Bitcoin bills.[1] Hand waiving a lot of the details, each note basically becomes a hardware wallet with some additional features to prevent double spending. [1] https://offline.cash

Are you involved in the project? I assume this is essentially a paper-thin HSM/Yubikey, right?

Is there any way I can use these as general-purpose HSMs outside of bitcoin/cryptocurrency contexts? Just as a novelty.

Let's say I just want to store a private key on it and use it for SSH/etc authentication - would that be possible?

Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#54

Post by bitwize »

janice1999 wrote: post #24
transcriptase wrote: post #12

Earlier quoted context omitted.

Imagine if the crazies were right and the Covid vaccines actually did have RFID.

The RFID vaccine conspiracy was inspired by another, very different technology Bill Gates helped fund - microneedle vaccines with quantum dot records. I guess RFID was easier for people to understand and it became the go-to conspiracy instead. https://www.scientificamerican.com/article/invisible-ink-cou...

The RFID vaccine conspiracy theory has been around since the 90s, back when Bill Gates was just a software robber baron, before his Lex Luthor arc.

Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#55

Post by rwmj »

appease7727 wrote: post #39
ipdashc wrote: post #30

Earlier quoted context omitted.

I have always wondered how this works (along with wire bonding), especially in an economic way. Chips being cheap makes sense at the lithography / wafer level because sure, you can stamp out thousands of them at once. But once you need to dice them up, bond wires to them, and package them... how on earth do you do that so efficiently that each chip can be sold for fractions of a cent?

Lots of automation. Dicing is automatic, bonding, testing are automatic. The manual work is mostly just transporting materials. The bonding machines are crazy . Definitely look it up on YouTube, the machine puts down bond wires super fast. The other part of it is sheer scale. Once you start making thousands or millions of something, economies of scale drive the costs way down

And for reference there's a section in this BBC film about how it was done in the 1970s, by hand: https://www.bbc.co.uk/programmes/p01z4rrj

Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#56

Post by kazinator »

Also, you can find previous announcements of Hitachi's μ-Chip series. In 2001, evidently, they put out a 0.4 mm x 0.4 mm chip.

Not being programmable at all and just transmitting a 128 bit number would help get the size down.

Let's compare to a Monza R6 chip that was introduced in 2014, I think. This thing is 0.464 by 0.442 mm according to the datasheet, so quite a bit larger even than the 2001 read-only μ-Chip.

But it it has a two-way communication with the controller, and writable memory. You can enable password protection and such.

The newer M800 series is smaller: 0.247 mm × 0.362 mm, but still larger than the 2005 read-only μ-Chip. There are more features: fatter datasheet. Things like a privacy mode: tag remains radio silent unless it sees a specific 32 bit code from the reader.

You know how you can hold a totally unrelated RFID tag to a door reader and have the reader beep, indicating it has communicated with the tag? This looks like the feature that would prevent that. That could be useful.

Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#58

Post by va1a »

jama211 wrote: post #47
paulgerhardt wrote: post #42

Earlier quoted context omitted.

Years later we put a newer version of this chip with a secure element into Bitcoin bills.[1] Hand waiving a lot of the details, each note basically becomes a hardware wallet with some additional features to prevent double spending. [1] https://offline.cash

With respect, this gives me serious ick. Black mirror vibes.

It's a hardware wallet that just looks cool. Where's the "black mirror vibes". There's not much nefarious tech here.

Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#59

Post by sen-wass »

kazinator wrote: post #56

Also, you can find previous announcements of Hitachi's μ-Chip series. In 2001, evidently, they put out a 0.4 mm x 0.4 mm chip. Not being programmable at all and just transmitting a 128 bit number would help get the size down. Let's compare to a Monza R6 chip that was introduced in 2014, I think. This thing is 0.464 by 0.442 mm according to the datasheet, so quite a bit larger even than the 2001 read-only μ-Chip. But…

> tag remains radio silent unless it sees a specific 32 bit code from the reader.

So you could spray sticky rfid chips into an enemy’s hair, undetectable when scanned, and later on you could send the correct signal to identify enemies in the room. Later their hair would be trimmed, leaving no trace.

Aside from the cool privacy aspect, it seems like it would be cool to:

- Attach to insects to later use a detector to find their homes.

- Coat it and eat it to track your digestion.

- Use it in a miniature tornado model or wind tunnel along with a radio spectrograph to have cool visualizations.

- Embed in paintings, 3D models, clothing labels, and more to verify authenticity, get serial numbers, or track inventory.

- Drop a trail of them behind you so others can follow the trail and find you!

Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip

#60

Post by m463 »

nutjob2 wrote: post #35
inanutshellus wrote: post #18

Earlier quoted context omitted.

If I worked for VISA's marketing team I'd want to spread FUD like this and "XX% of dollar bills have cocaine on them; protect your children with a youth MasterCard!"

For those not familiar with using powered drugs nasally, a credit or debit card is also usually a part of the drug taking toolkit. Its one of those odd occasions when you need both cash and credit.

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