Patent ID: 7459055

Claim:
A bonding method for a bonding structure with a buffer layer, comprising the steps of: preparing a first substrate; forming a plurality of metal pads on a surface of said first substrate; covering said surface of said first substrate with a protection layer; forming a first adhesive metal layer on said plurality of metal pads; coating a buffer layer on said protection layer and said first adhesive metal layer; covering said buffer layer with a first metal layer, said first metal layer being independently distributed on surface areas of said buffer layer opposite to said protection layer and said first adhesive metal layer; preparing a second substrate; forming a plurality of electrodes on said second substrate; forming a bonding layer on said second substrate, said bonding layer and said plurality of electrodes being independently distributed on said second substrate; and bonding said first metal layer, said plurality of electrodes and said bonding layer to complete said bonding structure.