Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and a method for plasma treatment capable of reducing particles generated due to an inner potential of an inner cylinder disposed inside of a vacuum container. SOLUTION: The plasma treatment apparatus has, inside of a metal vacuum chamber 11, the inner cylinder 15 made of surface-alumited aluminum and a substrate disposed in a plasma diffusion region, and performs plasma treatment. A plurality of protruding portions 15a in point-contact with the vacuum chamber 11 is provided on a lower end portion of the inner cylinder 15, and an alumite film 16 on a leading end portion 15b of each of the protruding portion 15a is removed so as to electrically connect the inner cylinder to the vacuum chamber 11. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To make plasma to be generated between an upper part electrode and a plasma treatment member even in the case when the frequency of high frequency electric power that is used is elevated in the plasma treatment member in which the plasma generating electrode is embedded in a ceramics base body. SOLUTION: The plasma treatment member 10 is provided with a ceramics base body 11, a plasma generating electrode 12 embedded in the ceramics base body 11 and an electric power supply member for the electrode connected to the plasma generating electrode 12, and in which an impedance when the plasma is generated using the high frequency electric power exceeding 13.56 MHz is adjusted to be 25 Ω or less. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A system and method for controlling plasma. The system includes a semiconductor chamber comprising a powered electrode, another electrode, and an adjustable coupling to ground circuit. The powered electrode is configured to receive a wafer or substrate. There is at least one grounded electrode configured to generate an electrical connection with the powered electrode. At least one of the grounded electrodes is electrically coupled to the adjustable coupling to ground circuit. The adjustable coupling to ground circuit is configured to modify the impedance of the grounded electrode. The ion energy of the plasma is controlled by the adjustable coupling to ground circuit.
Abstract:
PROBLEM TO BE SOLVED: To obtain a plasma processing system in which the loss of high frequency energy is reduced by enhancing the transmission efficiency of high frequency power supplied to an upper electrode. SOLUTION: An outer upper electrode 36 is supplied with high frequency power from a high frequency power supply 52 through a power supply tube 50. The power supply tube 50 is made of a conductive plate, e.g. an aluminium plate or a copper plate, having a tubular, conical or similar shape. The power supply tube 50 has a lower end connected continuously with the outer upper electrode 36 in the circumferential direction and an upper end connected electrically with the lower end part of an upper power supply rod 46 through a connector 48. On the outside of the power supply tube 50, the side wall of a chamber 10 extends above the height position of an upper electrode 34 thus constituting a tubular earth conductor 10a. In such an arrangement, the power supply tube 50, the outer upper electrode 36 and the tubular earth conductor 10a form a coaxial line where the formers (36, 50) serve as a waveguide in a load circuit viewed from the connector 48. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
기판의 프로세싱 동안 플라즈마 프로세싱 챔버의 프로세싱 챔버 내의 RF 전류에 저 임피던스 RF 복귀 경로를 제공하는 무선 주파수 (RF) 접지 복귀 장치가 제공된다. RF 접지 복귀 장치는 한정 링들의 세트를 포함하고, 한정 링들의 세트는 기판 프로세싱 동안 기판을 에칭하는 플라즈마를 유지하도록 구성되는 한정된 챔버 볼륨을 둘러싸도록 구성된다. RF 접지 복귀 장치는 또한 하부 전극 지지 구조체를 포함한다. RF 접지 복귀 장치는 또한 RF 콘택 인에블된 컴포넌트를 포함하며, RF 콘택 인에블된 컴포넌트는, 저 임피던스 RF 복귀 경로가 RF 전류를 RF 소스로 되돌아 복귀시키는 것을 용이하게 하도록 한정 링들의 세트와 하부 전극 지지 구조체 사이에 RF 콘택을 제공한다.
Abstract:
웨이퍼 지지대(20)는, 원판형의 세라믹 기체(22)의 내부에 RF 전극(23)과 히터 전극(30)이 매설된 것이다. RF 전극(23)은, 웨이퍼 적재면(22a)을 복수로 분할한 존마다 마련된 복수의 RF 존 전극(24, 25)에 의해 구성되어 있다. RF 존 전극(24, 25)은, 웨이퍼 적재면(22a)로부터의 거리(높이)가 다른 2단으로 나누어 마련되어 있다. 히터 전극(30)은, 웨이퍼 적재면(22a)을 RF 존 전극(24, 25)과 동일하거나 또는 다르게 복수로 분할한 존마다 마련된 히터 존 전극(31, 32)에 의해 구성되어 있다.