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sv-book
sv-book

... 2) predicting that the physical length of the transistors will reach 3 nm by 2025. Indeed, transistors with 45 nm channel length are in mass production now in the 90 nm technology node, and functioning transistors with 4 nm channel length have been demonstrated already by NEC at IEDM 2003. Although ...
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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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