Abstract:
Provided is a plasma doping apparatus which performs doping without deforming a substrate before and after the doping with good conformaility, and makes the injected dopants be not separated in a process of cleaning after the doping. A control unit (28), which is formed to the plasma doping apparatus, controls a pressure control unit to make the pressure in a processing container (32) be a first pressure, controls a bias power supply unit to make a bias power which is supplied to a maintenance unit (34) be a first bias power; performs a first plasma processing on a substrate (W) which is to be processed by the plasma generated by a plasma generation unit (39); controls the pressure control unit to make the pressure within the processing container be a second pressure which is higher than the first pressure after the first plasma processing; controls the bias power supply unit to make the bias power supplied to the maintenance unit to be a second bias power which is lower than the first bias power; and performs a second plasma processing on the target substrate by the plasma generated by the plasma generation unit.
Abstract:
A film forming method is provided with a step of placing a substrate on a placing section in a processing chamber; a step of supplying inside the processing chamber with a gas to be excited by microwaves for generating plasma; a step of vacuum-exhausting inside the processing chamber; and a step of supplying inside the processing chamber with C5F8 gas. The gas inside the processing chamber is brought into the plasma state by supplying inside the processing chamber with microwaves from a planar antenna member, which is arranged on an upper part of the processing chamber to face the placing section and has many slits along the circumference direction, and a fluorine-added carbon film is formed on the substrate with the gas brought into the plasma state. High frequency power is applied to the placing section while forming the fluorine-added carbon film on the substrate so that a biasing high frequency power of 0.32W/cm2 or less is applied on the substrate per unit area. ® KIPO & WIPO 2009
Abstract:
A technique for obtaining a fluorine-containing carbon film satisfactory in leak characteristics, coefficient of linear expansion, and mechanical strength. An active species obtained by activating C5F8 gas and hydrogen gas is used to deposit the fluorine-containing carbon film. In the fluorine-containing carbon film, polymerization is accelerated because the fluorine gradually passes off together with hydrogen. As a result, the number of terminal carbon bonds in the fluorine-containing carbon film decreases to attain a reduction in leak current. Since the polymerization acceleration enhances film strength, the fluorine-containing carbon film obtained can have high mechanical strengths concerning hardness, modulus of elasticity, etc.
Abstract:
플라즈마 도핑 장치(31)는, 피처리 기판(W)에 도펀트를 주입하여 도핑을 하는 플라즈마 도핑 장치(31)로서, 그 내부에서 피처리 기판(W)에 도펀트를 주입시키는 처리 용기(32)와, 처리 용기(32) 내에 도핑 가스 및 플라즈마 여기용의 불활성 가스를 공급하는 가스 공급부(33)와, 처리 용기(32) 내에 배치되고, 그 위에서 피처리 기판(W)을 유지하는 유지대(34)와, 마이크로파를 이용하여, 처리 용기(32) 내에 플라즈마를 발생시키는 플라즈마 발생 기구(39)와, 처리 용기(32) 내의 압력을 조정하는 압력 조정 기구와, 플라즈마 도핑 장치(31)를 제어하는 제어부(28)를 구비한다. 제어부(28)는, 처리 용기(32) 내의 압력을 100 mTorr 이상 500 mTorr 미만으로 하도록 압력 조정 기구를 제어하고, 플라즈마 발생 기구(39)에 의해 발생시킨 플라즈마에 의해 피처리 기판(W)에 플라즈마 처리를 한다.