Patent ID: 8852376

Claim:
A method for making a heater, the method comprising: (a) providing a rotator having a first axis and a rotating surface, and the rotating surface capable of rotating about the first axis; (b) providing a flexible substrate with a plurality of electrodes located on a first surface of the flexible substrate and fixing the flexible substrate on the rotating surface of the rotator, wherein the first surface of the flexible substrate with the plurality of electrodes thereon is away from the rotator; (c) drawing a carbon nanotube film from a carbon nanotube array and adhering the carbon nanotube film on the first surface of the flexible substrate; (d) wrapping the carbon nanotube film on the first surface of the flexible substrate to form a carbon nanotube layer by rotating the rotator about the first axis; and (e) cutting the flexible substrate and the carbon nanotube layer along a first direction.