Chip technology refers to a microcircuit system that integrates microelectronic components such as transistors, resistors, and capacitors onto silicon wafers through semiconductor processes. Silicon-based semiconductor materials form P-type or N-type regions after doping, and transistor structures such as MOSFETs enable switch control of electric current, thereby performing functions like logical operations, signal processing, or data storage. Chips are classified into six levels from SSI to GSI based on integration density, and by function, they cover categories such as CPU, GPU, memory, and sensor interfaces. For example, the ECU (Engine Control Unit) commonly used in automotive electronics relies on microcontroller chips to process sensor data in real time. Modern chip manufacturing involves thousands of processes, requiring EUV lithography machines in a dust-free environment to achieve 7nm or even smaller process nodes, while 3D stacking and Chiplet technologies are breaking through the physical limitations of traditional planar integration. In the automotive field, chips not only control critical systems such as fuel injection and ABS but also support ADAS and vehicle networking functions. With the application of third-generation semiconductor materials such as silicon carbide, the reliability of chips in high-temperature and high-pressure environments has been further improved, which is particularly important for the electronic control systems of electric vehicles. The continuous miniaturization and high-performance development of chip technology are driving the development of automobiles toward electrification and intelligence.
