Abstract:
PURPOSE: A method for manufacturing a photo-mask, a method for transferring a pattern, an apparatus for processing a photo-mask substrate, and a method for pattering a thin film are provided to transfer a photo-mask pattern by eliminating the effect of an exposure process which is generated by unnecessary energy applied to a resist. CONSTITUTION: A thin film(2) and a resist film(3) are formed on a substrate in order to form a photo-mask blank. A transferring pattern(4) is patterned on the resist film of the photo-mask blank. A surface treatment is implemented on the surface of the resist film by contacting with an oxide. A resist pattern(3a) is formed by developing the resist film. The thin film is etched using the resist pattern as a mask.
Abstract:
PURPOSE: An ultrasonic motor is provided to prevent interference due to a reflecting plate by generating rotational force in a rotor. CONSTITUTION: An output shaft(11) is arranged in the rotary shaft of an ultrasonic motor(10). The output shaft transfers the rotational force which is generated in the ultrasonic motor to the outside. A base supports the output shaft using a bearing in order to rotate an output shaft against a fixing part. A stator(15) has a coaxial cylindrical hole to the central axis of a disk. An engaging board(12) and a spring are fixed to the output shaft which is engaged in each cylindrical hole. The cylindrical hole of a rotor(14) is freely arranged outside the output shaft. The rotor said a spring(13) have elasticity to the rotational axis direction. The stator comprises an elastic member(16), a ground electrode(18), a piezoelectric(19), and a supply electrode(20).
Abstract:
PURPOSE: A gray tone mask blank, a manufacturing method of a gray tone mask using thereof, the gray tone mask, and a pattern transferring method using thereof are provided to obtain an accurate CD of a pattern formed on a mask, and to reduce the change of the pattern. CONSTITUTION: A gray tone mask blank comprises the following: a light-shielding layer(25) pattern formed on a transparent substrate(24); a semi-transparent layer(26) in the front side of the light-shielding layer; and a resist film(27) formed on the semi-transparent layer. The composition of the light-shielding layer changes to the film thickness direction. The surface reflection ratio of the resist film reduces for a laser lithography light with the wavelength of 300~450 nanometers.
Abstract:
PURPOSE: A photographing device photographing by suing a rolling shutter is provided to use a contrast AF(Auto Focusing) process even when a subject is not stable, thereby adjusting the focus to the subject. CONSTITUTION: An image sensor(124) outputs an image signal having an electric charge accumulated in a pixel of 1 line. A focusing sensor(131) uses a contrast value of frame image data of a first image frame formed by the image signal and senses a focus fit condition state in the photographing sensor of a subject image. The photographing sensor changes the electric accumulation period. The photographing sensor extends the electric accumulation period in a photographing condition which can predict the movement of a subject.
Abstract:
PURPOSE: A multi-gray scale photomask, a manufacturing method thereof, and a method for transferring a pattern are provided to improve the yield of a TFT by precisely controlling the step shape of a resist pattern on an object. CONSTITUTION: A first semi-transmitting layer(111) is made of materials with Cr and has etching resistance against F based etchant. A second semi-transmitting layer(112) is made of materials with Si and metal materials like Mo. A shielding layer(113) is made of Cr.