Patent ID: 8907692

Claim:
A method of testing a printed circuit board using a composite material, the method comprising: forming a flexible sheet, the flexible sheet including the composite material, wherein forming the flexible sheet comprises providing a quantum tunneling composite as the composite material, wherein the quantum tunneling composite comprises particles and wherein at least two particles are capable of forming an electrical pathway therebetween without physical contact; applying the flexible sheet to the printed circuit board such that the flexible sheet is disposed on the printed circuit board, wherein the composite material contacts the printed circuit board; applying a pressure to a top surface of the flexible sheet, and as a result to a portion of the composite material, while the flexible sheet is disposed on the printed circuit board, wherein application of the pressure to the flexible sheet causes the portion of the composite material to become less electrically resistant and an electrical pathway is created on a section of the printed circuit board that is adjacent to the portion of the composite material that is under pressure; measuring an electrical functionality of at least the section of the printed circuit board based on the electrical pathway that is created; and removing the flexible sheet from the printed circuit board at a completion of a test.