PCB (Printed Circuit Board) with interconnected multilayer boards and electronic whiteboard

The utility model discloses a PCB (Printed Circuit Board) with interconnected multilayer boards and an electronic whiteboard, which comprise a small PCB and a large PCB, the small PCB comprises a plurality of first BGA (Ball Grid Array) pins; the large PCB is provided with a mounting part, and the mounting part is provided with a plurality of second BGA pins matched with the first BGA pins; and when the small PCB is mounted on the mounting part, the first BGA pin is connected with the second BGA pin. The multilayer board interconnected PCB disclosed by the utility model not only can reduce the production process difficulty, but also can reduce the production design cost. 本实用新型公开了一种多层板互连的PCB板及电子白板，其包括小PCB板、及大PCB板，其中，所述小PCB板包括多个第一BGA引脚；所述大PCB板上设有一贴装部，所述贴装部设有与所述第一BGA引脚相适配的多个第二BGA引脚；所述小PCB板装贴至所述贴装部时，所述第一BGA引脚与所述第二BGA引脚连接。本实用新型所公开的多层板互连的PCB板不仅可以降低生产工艺难度，而且降低了生产设计成本。