Abstract:
PROBLEM TO BE SOLVED: To obtain a multibeam scanning optical system capable of obtaining a good beam pitch and capable of suppressing the occurrence of an abnormal image such as an image of uneven density. SOLUTION: The multibeam scanning optical system is provided with a pair of light sources and several pairs of coupling lenses, and the system satisfies the following expressions; 12.7 COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a probe microscope which constitutes a means lessening a scattering light by a wafer pattern through irradiation with a beam light, thereby enabling distinction of a foreign article from a scattering light by the foreign article and a means enabling detection of a position of the foreign article. SOLUTION: A sample 1 is loaded on three-dimensional driving stages 3, 4, 5 via a sample holder 2. A surface of the sample 1 is irradiated with a beam light emitted from a beam light oscillator directly or via a polarizing element 7 different from a polarizing light of the beam light. An image of a foreign article on the surface of the sample 1 scattered by the beam light is displayed through a polarizing element 8 different from the beam light on a monitor 11 via a high-sensitivity CCD camera 10 mounted to an optical microscope 9. In order to guide the beam light onto the surface of the sample 1, there are ways, one using an optical fiber and another using an optical component such as a mirror or the like.
Abstract:
PROBLEM TO BE SOLVED: To reduce space charge phenomenon and sample charging and increase accuracy in measurement of amount of irradiation currents in a gas cluster ion beam processing system.SOLUTION: A vented Faraday cup 302 includes a conductive shock plate 308 with a surface receiving a gas cluster ion beam 128, a vented container surrounding the shock plate 308 and extending in front of it to provide a cup form and including a plurality of coaxial conductive ring electrodes disposed at intervals, and a conducting means conducting currents collected by the shock plate 308 to a current measuring system 358. The conductive ring electrodes are constituted of at least three groups each consisting of at least two ring electrodes and are electrically connected with one another, and the respective groups are biased independently of one another to prevent disadvantageous leakage of charged particles to the inside and the outside of the cup.
Abstract:
The invention relates to a semiconductor device ( 10 ) comprising a semiconductor element ( 1 ), particularly a solid-state image sensor ( 1 ), comprising a semiconductor body ( 11 ) of which one surface comprises an optically active part ( 1 A) and an optically inactive part ( 1 B) within which electrical connection regions ( 2 ) of the optoelectronic semiconductor element ( 1 ) are present, while a body ( 3 ) is present above the optically active area ( 1 A) of the surface of the semiconductor body ( 11 ) comprising an optical component ( 3 B). According to the invention the body ( 3 ) comprises an optically transparent foil ( 3 ) which is present on the optically active part ( 1 A) of the surface of the semiconductor body ( 11 ) and which is attached thereto with an optically transparent adhesive layer ( 4 ) and in which the optical component ( 3 B) is formed. The device ( 10 ) is very stable, compact and easy to manufacture, that is to say in batches. For example a component ( 3 B) such as a lens ( 3 B) may easily be formed by pressing a suitably formed die ( 13 ) into the foil ( 3 ). A method according to the invention for manufacturing the device according to the invention is cost-effective and easy.
Abstract:
The temperature difference between an internal temperature and an external temperature which are detected by an internal temperature sensor and an external temperature sensor, respectively, is calculated. If the internal temperature is lower by not less than predetermined degrees than the external temperature and, hence, condensation on the surface of each optical component within a laser writing unit is highly likely, a motor is driven to rotate a polygonal mirror. During its operation the motor generates heat, which in turn transfers from a flange portion directly to a housing while heating air around the laser writing unit. Further, air within the housing is stirred by rotation of the polygonal mirror. In this way the temperature of the entire laser writing unit is raised.