Circuit board

A circuit board comprising:

• at least one first circuit substrate and at least one second circuit substrate overlapped with the first circuit substrate, each of the first circuit substrates comprising a first base layer, a first circuit layer, and a plurality of first conductive bodies arranged in the first base layer, the first conductive bodies formed by an electroplating process;
• wherein:
• the first circuit layer comprises an etching line;
• the etching line divides the first circuit layer into a hot pressing area located inside the etching line and a non-hot pressing area located outside the etching line;
• the hot pressing area comprises the plurality of first conductive bodies;
• the first conductive body comprises a first end and a second end opposite the first end;
• the first end is electrically connected to the hot pressing area;
• each of the second circuit substrates comprises a second base layer, a second circuit layer, and a plurality of second conductive bodies;
• the second conductive bodies comprise a conductive paste;
• wherein:
• the second conductive body comprises a third end and a fourth end opposite the third end;
• the third end is electrically connected to the second circuit layer;
• and
• the second end is electrically connected to the fourth end;
• the first circuit substrate further comprises a third circuit layer opposite the first circuit layer;
• the third circuit layer comprises a signal circuit and a plurality of first ground pads electrically isolated from the signal circuit;
• a side of the first ground pads adjacent to the first circuit layer is electrically connected to the first circuit layer through the first conductive bodies;
• a side of the first ground pads away from the first circuit layer is electrically connected to the second circuit layer through the second conductive bodies;
• and the electrically connected first circuit layer, first conductive bodies, first ground pads, second conductive bodies, and second circuit layer form a shielding shell, and the signal circuit is located in the shielding shell.