摘要:
A pattern forming apparatus comprising a sample base for positioning a sample on the base and moving a drawing position of the sample, a position measuring unit for measuring a position of the sample base, a correcting unit for mutually independently correcting drawing positions at those respective areas into which a whole drawing section of the sample is divided, the drawing position being calculated by the position measuring unit at the respective area, and a drawing unit for drawing a pattern on the sample on the basis of the position of the sample base measured by the position measuring unit and drawing position of the respective area corrected by the correcting unit.
摘要:
An object of the present invention is to provide a charged particle exposure system which can prevent the shift of an orbit of an electron beam in the vicinity of a periphery of a substrate when drawing a pattern onto the substrate, thereby making it possible to draw the pattern with high accuracy. According to the present invention, there is provided a charged particle beam exposure system comprising a holder for holding a substrate, a beam source for emitting a charged particle beam onto a surface of the substrate, beam scanning means for scanning the charged particle beam to draw a pattern on the surface of the substrate, a first electrical conductive block coming in electrical contact with a surface of a peripheral portion of the substrate, a first DC power supply unit for supplying an arbitrary voltage to the first electrical conductive block, a second electrical conductive block arranged to cover upside of the first electrical conductive block and upside of a peripheral portion along the periphery of the substrate, and to be electrically insulated from the substrate, and a second DC power supply unit for supplying the other arbitrary voltage to the second electrical conductive block.
摘要:
According to one embodiment of the present invention, the present invention may provide a temperature measuring method in a pattern drawing apparatus having a drawing chamber for drawing a pattern on a substrate to be transferred inside, a stage installed inside the drawing chamber, a standby chamber connected to the drawing chamber, and a thermostatic device installed inside the standby chamber, characterized in that a dummy substrate having a temperature measuring device and a recording device for recording the temperature measured by the temperature measuring device is transferred to the thermostatic device, then transferred into the drawing chamber, and then put on the stage, thus the temperature history of the dummy substrate in the transfer route from the thermostatic device to the stage is measured by the temperature measuring device and recorded in the recording device.
摘要:
A method of transferring a sample to and from a treating chamber kept in a vacuum atmosphere through a pressure regulatively preparatory chamber. The sample is contained in the sample transfer container, which is kept air-permeable by a dust filtering filter, in a cleaned atmosphere before the sample is transferred to the treating chamber. The sample transfer container is transferred into the preparatory chamber, and the inside of the preparatory chamber is evacuated to a vacuum atmosphere. The sample is then extracted from the sample transfer container in the vacuum atmosphere and is transferred into the treating chamber. Also disclosed is an apparatus for supporting the sample transferring method.
摘要:
A method of transferring a sample to and from a treating chamber kept in a vacuum atmosphere through a pressure regulative preparatory chamber. The sample is contained in the sample transfer container, which is kept air-permeable by a dust filtering filter, in a cleaned atmosphere before the sample is transferred to the treating chamber. The sample transfer container is transferred into the preparatory chamber, and the inside of the preparatory chamber is evacuated to a vacuum atmosphere. The sample is then extracted from the sample transfer container in the vacuum atmosphere and is transferred into the treating chamber. Also disclosed is an apparatus for supporting the sample transferring method.
摘要:
This pattern inspection apparatus includes an inspection region information storage unit that stores an inspection region specified in a pattern region, a pattern surface height detection unit that detects a pattern surface height signal corresponding to a pattern surface height measurement position on the inspection sample, an autofocus mechanism that focuses on the inspection sample using the pattern surface height signal detected by the pattern surface height detection unit, a determination unit, and an autofocus mechanism control unit. When the determination unit determines that the pattern surface height measurement position is located within the inspection region, the autofocus mechanism control unit drives the autofocus mechanism, and the determination unit determines that the pattern surface height measurement position is not located within the inspection region, the autofocus mechanism control unit stops the autofocus mechanism.
摘要:
A vacuum processing apparatus performs processing such-as a pattern depiction with a charged beam within a process chamber evacuated to a high vacuum by an ion pump. The vacuum processing apparatus, which makes it possible to prevent the accuracy of the charged beam pattern depiction from being deteriorated by ions and electrons leaking from the ion pump, has a conductor and a voltage applying unit. The conductor is arranged in the vicinity of the suction port of the process chamber communicating with the ion pump such that the conductor is electrically insulated from the process chamber. The voltage applying unit imparts a potential differing from that of the process chamber to the conductor. Because of the potential difference between the conductor and the process chamber, the ions and electrons leaking from the ion pump are reflected or adsorbed by the conductor so as to suppress leakage of the ions and electrons into the process chamber.
摘要:
An apparatus for emitting a beam to a sample used for manufacturing a semiconductor device in order to process the sample, includes a chamber having an opening, a moving mechanism provided in the chamber, for moving the sample in X-, Y- and Z-axis directions, and a beam emitting system associated with the opening of the chamber, for emitting a beam to the sample in the chamber. The apparatus further includes an optical position detector for guiding a coherent light beam into the chamber and detecting a light beam output from the chamber. The optical position detector has light beam generating unit for generating a coherent light beam to be emitted to the sample, light-receiving unit for receiving a light beam from a surface of the sample, and converting unit for converting a signal output from the light-receiving unit into signals in the X-, Y- and Z-axis directions.
摘要:
A position measuring apparatus includes a light source 1, an illumination optical system 100, a light-reception optical system 400 and a light-receiving unit 500. Illuminating beam emitted from the light source 1 is diffracted by a two-dimensional pattern on an object 10, and then enters the light-reception optical system 400. The light-receiving unit 500 receives diffracted lights consisting of a combination of a higher-order diffracted light appearing on the object side for the zero-order diffracted light in the receive diffracted lights with a zero-order diffracted light different in frequency from the higher-order diffracted light and another combination of higher-order diffracted lights different in frequency from one another and appearing on the object side for the zero-order diffracted light, thereby forming a position measuring interference measurement signal within the plane including the object. A signal processing unit is adapted to measure the position of the object 10 based on the phase of the position measuring interference measurement signal.
摘要:
A monolithic semiconductor laser array includes an insulating substrate, a plurality of semiconductor layers epitaxially grown on the substrate and forming a laser structure, and at least one groove transverse to the substrate extending through the semiconductor layers into the substrate, dividing the semiconductor laser structure into at least two mutually isolated parts. Within each of the isolated parts of the semiconductor laser structure, a first groove includes a side wall transverse to the substrate and forming a first resonator facet of a semiconductor laser. A second groove in each of the parts includes a second side wall transverse to the substrate and opposite the first side wall, forming a second resonator facet of the semiconductor laser in that part. Each second groove also includes a third side wall oblique to the substrate and opposite the second side wall for reflecting light from the respective semiconductor laser so that light from each of the semiconductor lasers is emitted along a common axis transverse to the substrate. The second grooves are arranged radially about a common point on the substrate. The semiconductor lasers may be electrically connected in series to each other.