Patent ID: 7047903

Claim:
A plasma CVD apparatus, comprising: a first vacuum chamber and a second vacuum chamber connected through a gate valve, each vacuum chamber equipped with a gas supply port and an exhausting port, a plurality of electrode array layers, each array layer having a plurality of inductively coupled electrodes forming one plane and each electrode having a power feeding portion and a grounded portion, the plurality of electrode array layers being arranged in parallel to each other, and being arranged in N layers (where N is a natural number of 2 or larger) in said first vacuum chamber and in (N−1) layers in said second vacuum chamber, and at least a pair of substrate holders, each substrate holder holding at least one substrate at a circumference portion so that both surfaces of the substrate are exposed, whereby said pair of substrate holders are transported between adjacent electrode array layers in said first vacuum chamber, a first film forming gas is introduced through the gas supply port and high frequency power is fed to the power feeding portions to generate plasma and to form a first thin film on one surface of substrates facing said adjacent electrode array layers, and said pair of substrate holders are then transported into the second vacuum chamber so that the other surface of the substrates on which said first thin film is not formed faces to an electrode array layer, and a second film forming gas is introduced through the gas supply port and high-frequency power is fed to the power feeding portions of inductively coupled electrodes to generate plasma and to form a second thin film on said other surface on which the first thin film is not formed.