Method for making a heat dissipation structure

A method for making a heat dissipation structure comprising:

• providing a flexible substrate and a graphite sheet, the flexible substrate comprising a first surface and a second surface facing away from the first surface, the graphite sheet comprising a third surface and a fourth surface facing away from the third surface;
• forming at least one recess on at least one the flexible substrate and the graphite sheet, the at least one recess is recessed from the second surface of the flexible substrate to the first surface of the flexible substrate, and/or recessed from the third surface of the graphite sheet to the fourth surface of the graphite sheet;
• forming at least one groove on the flexible substrate from the first surface of the flexible substrate to the second surface of the flexible substrate;
• filling a heat insulating material in the at least one recess;
• filling a phase changing material in the at least one groove;
• connecting a cover plate to the first surface of the flexible substrate, thereby sealing the at least one groove to define a sealed cavity;
• and
• connecting the second surface of the flexible substrate to the third surface of the graphite sheet to seal the at least one recess to define a containing cavity, to cause a heat insulating material to be sealed in the containing cavity.