The trends in computing-capability of logic circuits and the demands. (A) Trends in increasing demand for computing capability and scaling trends in transistor density. By 2012, computing-capability demand was doubling every 24 months; recently, this has been shortened to approximately every 3.4 months. Si-based logic circuits rely on increasing transistor numbers and thus cannot keep pace with the demand for computing capability. 2D TMDCs-based logic circuits relying on improving the computing capability of the unit transistor will bring powerful computing capacity to meet demand. C_transistor represents the amount of computing capability provided per unit transistor; C_circuits represents the computing capability of logic circuits; N represents transistor numbers. Reproduced with permission from [1]. Copyright©2022, Springer Nature. Reproduced with permission from [17]. Copyright©2020, Royal Society. (B) Structure diagram of Si-FETs. (C) Structure diagram of the 2D FETs. A single 2D transistor has two surface channels and can be modulated by a vertical double gate.