Bonding method using a carbon nanotube structure

A bonding method comprising:

• providing a first object comprising a first surface and a second object comprising a second surface, wherein both the first surface and the second surface have a surface roughness less than or equal to 1.0 micrometer;
• laying a carbon nanotube structure on and in direct contact with the first surface, wherein the carbon nanotube structure comprises a super-aligned carbon nanotube film, the super-aligned carbon nanotube film comprises a plurality of carbon nanotubes, the plurality of carbon nanotubes extends substantially along a same direction, and an extending direction of the plurality of carbon nanotubes is substantially parallel to a surface of the super-aligned carbon nanotube film, the first surface and the second surface;
• laying the second object on and in direct contact with the carbon nanotube structure, wherein the carbon nanotube structure is located between the first object and the second object;
• and
• applying a pressure to the first object and the second object, to bond the first object to the second object, wherein a three-layer structure is formed by the first object, the carbon nanotube structure and the second object.