That chip aging breaks the properties of the chip is another reason I’ve advocated using older, simpler nodes for high-security systems. The less you fight with physics, the more often you’re chip will do exactly what you want it to.
Wow, I hadn’t thought of the huge change automotive is facing. This article makes the point that current fleets sit unused the majority of the time, but a properly implemented self-driving fleet will be in use nearly 100% of the time. That’s a big change in the needs of the parts.
I live in a cold climate and parts for automotive need to withstand -40 (both C and F, they’re the same). I wonder if we’ll see vehicles that aren’t designed for this because they’ll be in use all the time and won’t sit still long enough to get that cold. Of course now that I think of it, this would not really adversely affect the ICs (topic of this submission), more the mechanical and specialized parts (LCD displays, etc).
While the cold wouldn’t adversely effect the ICs in the long term, if they get cold enough, they’ll temporarily stop working as the electron occupancy of the valence bands drops. Practically, this means that your car computer will fail to boot if it gets too cold.
Which, I guess, is a long winded way of saying that the design constraints don’t change much for the electronics.
At sufficiently high doping, it becomes basically impossible to freeze out the dopants, because a Mott band forms. Essentially, the dopant radiuses begin to overlap, forming a partially filled conduction band.
That chip aging breaks the properties of the chip is another reason I’ve advocated using older, simpler nodes for high-security systems. The less you fight with physics, the more often you’re chip will do exactly what you want it to.
Wow, I hadn’t thought of the huge change automotive is facing. This article makes the point that current fleets sit unused the majority of the time, but a properly implemented self-driving fleet will be in use nearly 100% of the time. That’s a big change in the needs of the parts.
I live in a cold climate and parts for automotive need to withstand -40 (both C and F, they’re the same). I wonder if we’ll see vehicles that aren’t designed for this because they’ll be in use all the time and won’t sit still long enough to get that cold. Of course now that I think of it, this would not really adversely affect the ICs (topic of this submission), more the mechanical and specialized parts (LCD displays, etc).
While the cold wouldn’t adversely effect the ICs in the long term, if they get cold enough, they’ll temporarily stop working as the electron occupancy of the valence bands drops. Practically, this means that your car computer will fail to boot if it gets too cold.
Which, I guess, is a long winded way of saying that the design constraints don’t change much for the electronics.
At sufficiently high doping, it becomes basically impossible to freeze out the dopants, because a Mott band forms. Essentially, the dopant radiuses begin to overlap, forming a partially filled conduction band.
CMOS chips run just fine at 77K.