It is usually a rectangle or square that represents the packaged form of an integrated circuit (IC). The symbol is usually marked with the chip manufacturer, model, pin number and other information.
However, the symbols of chips can vary from manufacturer to manufacturer, and some manufacturers may use special symbols to represent their chips. In addition, some specific types of chips may be represented by more specific symbols, such as cpus, Gpus, FPgas, etc. In general, the symbol of the chip is usually at the discretion of the manufacturer, so the specific symbol may vary. If you need to find the symbol of a specific chip, it is recommended to refer to the relevant documents or materials of the manufacturer or model of the chip.