Electrical connector and manufacturing method thereof

A manufacturing method of an electrical connector used for electrically connecting a first electronic element to a second electronic element, the bottom of the first electronic element having a plurality of conductive portions protruding thereof, comprising:

• (s1) providing an insulating body, opening a plurality of accommodation holes on an upper surface of the insulating body, wherein an aperture of the accommodation hole is greater than an outer diameter of the conductive portion, and opening, in the insulating body, a plurality of penetration holes penetrating a lower surface of the insulating body;
• (s2) coating a layer of metal substrate on wall surfaces of the accommodation hole and the penetration hole, to form a conductor and a conducting line respectively, wherein the conducting line is electrically connected with the conductor, and extends downwards to be electrically connected with the second electronic element;
• (s3) placing a low-melting point liquid metal in the accommodation hole, wherein the low-melting point liquid metal is conducted with the metal layer, and electrically connected with the conductive portion entering the accommodation hole;
• and
• (s4) disposing an elastic sealing layer on the upper surface of the insulating body, wherein the elastic sealing layer comprises a plurality of through holes corresponding to the accommodation holes, for the conductive portions to pass through, and when an electronic element is pressed down on the elastic sealing layer, the elastic sealing layer is compressed to prevent the low-melting point liquid metal from leaking.