What is a 3D transistor, its characteristics, principles, classification, operating procedures, and development trends 2

traditional two-dimensional planar transistor is composed of two doped semiconductor materials (P-type and N-type), and the current switch is controlled by controlling the gate voltage. 3D transistors achieve higher integration by stacking multiple layers of transistors vertically. Each layer of transistor has its own gate control, and by controlling the voltage of each gate, the switching of current can be controlled.

3、 Classification of 3D transistors:

According to the structure and process of 3D transistors, they can be classified into different categories as follows:

1. Vertical transistor: A vertical transistor refers to a structure in which the channel direction of the transistor is perpendicular to the substrate plane, with high integration and low power consumption.

2. Multilayer transistor: A multilayer transistor refers to a structure in which multiple layers of transistors are stacked vertically, which can achieve higher integration and better performance.

3. FinFET transistor: FinFET transistor is a vertical transistor structure, whose channel is composed of multiple vertical "fin like" structures, which can provide higher integration and better performance.