Abstract:
There is provided a method for heating a part within a processing chamber of a semiconductor manufacturing apparatus having a substrate in the processing chamber and performing a process on the substrate. The heating method includes generating heating lights which is generated by a heating light source provided outside the processing chamber and has a wavelength band capable of passing through a first part in the processing chamber and being absorbed into a second part in the processing chamber made of a material different from that of the first part, and heating the second part in the processing chamber by passing the heating lights through the first part in the processing chamber and irradiating the heating lights to the second part in the processing chamber.
Abstract:
The temperature measuring apparatus includes: a light source; a first wavelength-dividing unit which wavelength-divides a light from the light source into m lights whose wavelength bands are different from one another; m first dividing units which divides each of the m lights from the first wavelength-dividing unit into n lights; a transmitting unit which transmits lights from the m first dividing unit to measurement points of an object to be measured; a light receiving unit which receives a light reflected by each of the measurement points; and a temperature calculating unit which calculates a temperature of each of the measurement points based on a waveform of the light received by the light receiving unit.
Abstract:
A temperature measuring apparatus includes a light source, a first splitter, a second splitter, a reference beam reflector, an optical path length adjuster, a reference beam transmitting member, a first to an nth measuring beam transmitting member and a photodetector. The temperature measuring apparatus further includes an attenuator that attenuates the reference beam reflected from the reference beam reflector to thereby make an intensity thereof closer to an intensity of the measurement beam reflected from the temperature measurement object.
Abstract:
A plasma processing apparatus includes a vacuum evacuable processing chamber; a first electrode for supporting a substrate to be processed in the processing chamber; a processing gas supply unit for supplying a processing gas into a processing space; a plasma excitation unit for generating a plasma by exciting the processing gas in the processing chamber; a first radio frequency power supply unit for supplying a first radio frequency power to the first electrode to attract ions in the plasma to the substrate; and a first radio frequency power amplitude modulation unit for modulating an amplitude of the first radio frequency power at a predetermined interval. The plasma processing apparatus further includes a first radio frequency power frequency modulation unit for modulating a frequency of the first radio frequency power in substantially synchronously with the amplitude modulation of the first radio frequency power.
Abstract:
In a plasma processing apparatus, a first electrode is attached to a grounded evacuable processing chamber via an insulating material or a space and a second electrode disposed in parallel with the first electrode spaced apart therefrom in the processing chamber, the second electrode supporting a target substrate to face the first electrode. A first radio frequency power supply unit applies a first radio frequency power of a first frequency to the second electrode, and a second radio frequency power supply unit applies a second radio frequency power of a second frequency lower than the first frequency to the second electrode. Further, a processing gas supply unit supplies a processing gas to a processing space formed by the first and the second electrode and a sidewall of the processing chamber. Moreover, an inductor electrically is connected between the first electrode and a ground potential.
Abstract:
An optimum application voltage for reducing deposits on a peripheral portion of a substrate as well as improving a process result in balance is effectively found without changing a height of a focus ring. A plasma processing apparatus includes a focus ring which includes a dielectric ring provided so as to surround a substrate mounting portion of a mounting table and a conductive ring provided on the dielectric ring; a voltage sensor configured to detect a floating voltage of the conductive ring; a DC power supply configured to apply a DC voltage to the conductive ring. An optimum voltage to be applied to the conductive ring is obtained based on a floating voltage actually detected from the conductive ring, and the optimum application voltage is adjusted based on a variation in the actually detected floating voltage for each plasma process.
Abstract:
A plasma processing apparatus can prevent a sheath from becoming distorted, simplify a configuration of the apparatus, and prevent particles from attaching to a substrate. The plasma processing apparatus performs plasma processing on the substrate. A housing chamber houses the substrate. A mounting stage is disposed within the housing chamber and mounted with the substrate. An annular member is disposed in the mounting stage. A power supply unit supplies high-frequency power to the mounting stage. An observation unit optically observes the distribution of the plasma. A voltage applying unit applies a DC voltage to the annular member. A control unit sets the value of the DC voltage to be applied based on the observed plasma distribution.
Abstract:
Provided are a substrate temperature control method and a plasma processing apparatus using the method. The method includes: disposing a substrate on a placing table provided in a vacuum processing chamber; supplying a heat conduction gas between a rear surface of the substrate and the placing table; detecting a pressure of the heat conduction gas; comparing the detected pressure value with a set pressure value; controlling the supply of the heat conduction gas so that the detected pressure value becomes the set pressure value; and alternately repeating a first period where the set pressure value is set to be a first set pressure value that is higher than a low pressure value and equal to or higher than the lowest limit pressure value and a second period where the set pressure value is set to be a second set pressure value that is lower than the low pressure value.
Abstract:
Provided is a temperature measuring method which can accurately measure a temperature of an object to be measured compared to a conventional method, even if a thin film is formed on the object. The temperature measuring method includes: transmitting a light from a light source to a measurement point of an object to be measured, the object being a substrate on which a thin film is formed; measuring a first interference wave caused by a reflected light from a surface of the substrate, and a second interference wave caused by reflected lights from an interface between the substrate and the thin film and from a rear surface of the thin film; calculating an optical path length from the first interference wave to the second interference wave; calculating a film thickness of the thin film based on an intensity of the second interference wave; calculating an optical path difference between an optical path length of the substrate and the calculated optical path length, based on the calculated film thickness of the thin film; compensating for the optical path length from the first interference wave to the second interference wave based on the calculated optical path difference; and calculating a temperature of the object at the measurement point based on the compensated optical path length.
Abstract:
An apparatus includes an upper electrode and a lower electrode for supporting a wafer disposed opposite each other within a process chamber. A first RF power supply configured to apply a first RF power having a relatively higher frequency is connected to the upper electrode. A second RF power supply configured to apply a second RF power having a relatively lower frequency is connected to the lower electrode. A variable DC power supply is connected to the upper electrode. A process gas is supplied into the process chamber while any one of application voltage, application current, and application power from the variable DC power supply to the upper electrode is controlled, to generate plasma of the process gas so as to perform plasma etching.