摘要:
A photomask for focus monitoring of the present invention is provided with a substrate that allows the exposure light to pass through and a unit mask structure for focus monitoring. Unit mask structure for focus monitoring has two patterns, and that are formed on the surface of substrate and a light blocking film that has a rear surface pattern that is formed on the rear surface of substrate for substantially differentiating the incident directions of the exposure light that enters two patterns, and for position measurement. When the dimension of rear surface pattern is L and the wavelength of the exposure light is λ, L/λ is 10, or greater.
摘要:
Non-telecentric illuminating light obtained by controlling the shape of an opening of an illumination aperture is directed onto a photomask, and a characteristic such that an image of a pattern of the photomask formed by the non-telecentric illumination moves in the direction perpendicular to an optical axis when an image-forming plane is moved in the direction of the optical axis, to perform focus monitoring. This eliminates the need for a special photomask, so that inexpensive and highly precise focus monitoring method, focus monitoring apparatus, and a method of manufacturing a semiconductor device can be obtained.
摘要:
A photomask for focus monitoring of the present invention is provided with a substrate that allows the exposure light to pass through and a unit mask structure for focus monitoring. Unit mask structure for focus monitoring has two patterns, and that are formed on the surface of substrate and a light blocking film that has a rear surface pattern that is formed on the rear surface of substrate for substantially differentiating the incident directions of the exposure light that enters two patterns, and for position measurement. When the dimension of rear surface pattern is L and the wavelength of the exposure light is &lgr;, L/&lgr; is 10, or greater.
摘要:
A reticle that allows deviation in rotation and magnification of an exposure region detected just using a wafer subjected to exposure and development without having to provide an underlying pattern, a pattern transferred using such a reticle, and a correction method are achieved. A first measurement pattern is provided on a dicing line pattern of the X axis direction. Also, a second measurement pattern is formed on a line of extension of the first measurement pattern in the Y axis direction. Similarly, a third measurement pattern is formed on the dicing line pattern in the Y axis direction. A fourth measurement pattern is provided corresponding to the third measurement pattern.
摘要:
A focus monitoring method of the invention is characterized by transferring the pattern of a photo mask for phase shift focus monitor onto a photoresist on a semiconductor substrate by using modified illumination. Photo mask for phase shift focus monitor has first and second light transmitting portions which are adjacent to each other while sandwiching a shielding pattern, and is constructed so that a phase difference other than 180 degrees occurs between exposure light passed through the first light transmitting portion and exposure light passed through the second light transmitting portion. Consequently, a focus monitoring method, a focus monitor system, and a semiconductor fabricating method with high detection sensitivity in the z direction and which do not require changing of an illumination aperture can be achieved.
摘要:
A thermosetting resin composition which contains a polyurethane resin and a curing agent, the polyurethane resin including a constitutional unit derived from an alicyclic diol and having an acid value of 10 to 35 mgKOH/g.
摘要:
A damper device comprises: a first shaft that outputs rotational power from a power source; a second shaft that transmits rotational power to a gear mechanism and has outer splines; a first rotational member(s) to which the rotational power of the first shaft is transmitted; a second rotational member spline-engaged with the outer splines; a damper unit that absorbs torque fluctuation between the first and second rotational members; and an inertial body having inner splines spline-engaged with the outer splines and having an annular portion. The tooth parts of the inner splines are pressed into contact with the tooth parts of the outer splines in the circumferential direction of the inertial body.
摘要:
When there is an extremely low ambient temperature, an electronic control unit controls operation of a circulation path for coolant water in such a manner that, after starting of an engine, the coolant water is supplied from the engine first to a throttle valve and an EGR valve and then to an oil warmer for a transmission. This solves a failure problem in the throttle valve and the EGR valve caused by frost formation at an early stage. As a result, desired operating performance of the vehicle is quickly ensured and heat management in the vehicle is carried out in a desired manner when there is an extremely low ambient temperature.
摘要:
A torque fluctuation absorbing apparatus includes a first plate member, a second plate member rotatable relative to the first plate member, and a first friction member disposed between the first plate member and the second plate member and pressed against the first plate member in a slidable manner. The second plate member includes a first retaining surface that makes contact with the first friction member. The first friction member includes a plurality of grooves at a surface facing the first retaining surface of the second plate member, the grooves extending in a radial direction of the first friction member.
摘要:
A damper device comprises: a first shaft that outputs rotational power from a power source; a second shaft that transmits rotational power to a gear mechanism and has outer splines; a first rotational member(s) to which the rotational power of the first shaft is transmitted; a second rotational member spline-engaged with the outer splines; a damper unit that absorbs torque fluctuation between the first and second rotational members; and an inertial body having inner splines spline-engaged with the outer splines and having an annular portion. The tooth parts of the inner splines are pressed into contact with the tooth parts of the outer splines in the circumferential direction of the inertial body.