PH3 is T-Global thin heat spreader product line. It provides a low total cost of ownership approach to cooling ICs and other such devices where restricted space precludes the use of conventional heatsinks. PH3 consists of a flexible copper foil between electrically insulating films. The polyester based insulating film provides a dielectric breakdown voltage of 3.5 kV while the high strength acrylic PSA (pressure sensitive adhesive) provides a strong bond to components. The compliant nature of these heat spreaders permits almost perfect adhesive contact with non-flat package surfaces, optimizing thermal and mechanical performance.