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I don't immediately see a picture of the actual chip to get a reference size bybitself, that that chip inside the tooth is pretty wild. I wonder how you would e
by gleenn 2y ago
I don't immediately see a picture of the actual chip to get a reference size bybitself, that that chip inside the tooth is pretty wild. I wonder how you would even begin to power electronics within such a space. Or perhaps this is more of a marketing level of graphics.
- metaphor 2y agoFrom the article: > The BG29 chips will be available in 5 mm × 5 mm QFN and 2.6 mm × 2.8 mm WLCSP form factors That "wireless oral health monitor" example is a concept from Lura Health[1] that integrates a marginally smaller BG27 (2.3mm x 2.6mm WLCSP)[2]. [1] https://lurahealth.com https://lurahealth.com [2] https://www.silabs.com/applications/case-studies/small-bluetooth-chip-powers-luras-oral-health-monitor https://www.silabs.com/applications/case-studies/small-bluet...
- opello 2y agoThe second link isn't exactly forthcoming on the battery technology used, but at least says: > and its power consumption is low enough that the device can last from six months to a year on a battery of the equivalent size The average "width" of the first mandibular molar from this article[1] is 5.1-5.2mm. It sure would be interesting to see a CAD model of the design inside the module on the band. The graphics from the posted article vs. the first link above are also a bit different, making it even harder to infer much I think. [1] https://pmc.ncbi.nlm.nih.gov/articles/PMC5502574/ https://pmc.ncbi.nlm.nih.gov/articles/PMC5502574/