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
#2The most amazing thing about this (and another tiny RFID chip that was on HN recently) is not that you can print them on wafers, but that you can cut up the wafers and handle these tiny dies. Imagine you manufactured sugar, but had to manipulate each sugar grain separately.
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#3Is it possible to buy and use such tiny chips?
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#4The most amazing thing about this (and another tiny RFID chip that was on HN recently) is not that you can print them on wafers, but that you can cut up the wafers and handle these tiny dies. Imagine you manufactured sugar, but had to manipulate each sugar grain separately.
I was in a project with MAN Roland and the university of Dresden at the same time and the most important thing is roll to roll printing. This actually works well if you do not need an external antenna. What was the holy grrail at the time was to print also the antennas, get a decent coupling and then actually also do item and not only batch level tracking of the packaging you would print. Particular Pharma was really interested in terms of anticounterfeiting at low cost.
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#5Still needs an antenna tuned to the RFID frequency which will be much larger than the chip. It's cool engineering but doesn't mean you can have a working sub-mm tag.
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#6The most amazing thing about this (and another tiny RFID chip that was on HN recently) is not that you can print them on wafers, but that you can cut up the wafers and handle these tiny dies. Imagine you manufactured sugar, but had to manipulate each sugar grain separately.
It thought it was an interesting analogy, so I looked up the size of a typical sugar crystal. It's between 450 and 600 microns. So these chips are 3 to 4 times smaller than that even.
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#7honestly given how long ago that was I'd not be surprised if everything's completely peppered with chips... one from the manufacturer, one from inventory, one from logistic, one from corporate espionage agent, one from foreign adversary state actor sky really is the limit with these.
didn't parmesan put some chips in their cheese too?
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#8Is it possible to buy and use such tiny chips?
Used to develop readers based on similar UHF chips (868 MHz in EU). They were quite expensive compared to printed bar codes those were replacing. Also large. With (folded) antennas we are still talking about 40*10 mm minimum for the label. You can not use them on metal surfaces. Readers nearby will interfere as it works by EM wave backscattering, unlike NFC which is essentially a transformer (with electric field intentionally supressed usually). I think it still is a solution looking for problem. QR codes are cheap and NFC (14 MHz) readers are everywhere.
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#9honestly given how long ago that was I'd not be surprised if everything's completely peppered with chips... one from the manufacturer, one from inventory, one from logistic, one from corporate espionage agent, one from foreign adversary state actor sky really is the limit with these. didn't parmesan put some chips in their cheese too?
Sounds crazy but car and truck tires have had RFID chips for years. I assume most people would be surprised by that.
https://www.tirereview.com/michelin-connect-car-tires-rfid-2...
Re: In 2006, Hitachi developed a 0.15mm-sized RFID chip
#10Still needs an antenna tuned to the RFID frequency which will be much larger than the chip. It's cool engineering but doesn't mean you can have a working sub-mm tag.
No, but the chip does usually put a cap on the thinness of the whole assembly (e.g. for cards). This means you can have a paper-thin NFC sticker (which we have now, I guess).