Infiltrating carbon nanotubes with carbon to prevent delamination from a substrate

A carbon nanotube (CNT) grid, comprising:

• a first carbon nanotube, comprising:
• a first top surface;
• and a first bottom surface;
• a second carbon nanotube vertically aligned with the first carbon nanotube, the second carbon nanotube comprising:
• a second top surface;
• and
• a second bottom surface, wherein the first carbon nanotube and the second carbon nanotube are infiltrated with carbon by a mixture that is flowing and having a temperature between 800 and 950 degrees Celsius, the mixture comprising:
• a first amount of ethylene between 150 standard cubic centimeter per minute (seem) and 200 seem;
• and
• a second amount of hydrogen between 100 seem and 200 seem, wherein the hydrogen is 25-75% of the flow, wherein infiltrating the first carbon nanotube and the second carbon nanotube with carbon causes the first carbon nanotube and the second carbon nanotube to have carbon deposits formed thereon and to not delaminate from a substrate during cooling subsequent the infiltrating;
• and
• a thin film extending along the first bottom surface and the second bottom surface, wherein the thin film is suspended between the first carbon nanotube and the second carbon nanotube.