Thin, stretchable and flexible printed circuit and manufacturing method therefor

A manufacturing method for a thin, stretchable and flexible printed circuit, comprising:

• a step of providing a flexible circuit board provided with a circuit layer and two protective films, and attaching an adhesion-reducing carrier film to a first side of the flexible circuit board to form a first circuit board, wherein the two protective layers are located on two sides of the circuit layer respectively, and the adhesion-reducing carrier film has a first preset adhesive force;
• a step of performing contour cutting, from a second side of the first circuit board, on the two protective films in the first circuit board to form a serpentine circuit by the circuit layer and the two protective films subjected to the contour cutting, and stripping scrap from the cut first circuit board to form a second circuit board, wherein the serpentine circuit has at least one stretching direction;
• a step of providing a first elastomer composite film, attaching the first elastomer composite film to a second side of the second circuit board, and performing an adhesion-reducing operation on the adhesion-reducing carrier film on a first side of the second circuit board to allow the adhesion-reducing carrier film to have a second preset adhesive force to form a third circuit board, wherein the second preset adhesive force is less than the first preset adhesive force;
• and
• a step of stripping the adhesion-reducing carrier film from the third circuit board to form a target circuit.