To provide a spark plug in which separation of a tip can be prevented and enough wear resistance can be obtained without increasing the content of nickel in the tip portion, and a use method of the spark plug. The heat dissipation device includes an integrated heat spreader and a base plate coupled to the integrated heat spreader, wherein the base plate comprises a plurality of metal pellets to dissipate heat from the integrated heat spreader. A PCB is provided and has a surface with a plurality of contact pads.