摘要:
It was an objective of the present invention to provide a susceptor which can prevent a increasing phenomenon of the dopant concentration of the epitaxial layer at the peripheral portion of the wafer. By providing a through-hole 7 passing through to a rear side at the outer peripheral side of the wafer inside the wafer pocket 6, a down flow of a reacting source gas from the upper surface of the susceptor 5 is formed, so that the unwanted flow of the dopant species being exhausted at the rear surface onto the wafer surface can be avoided. As a result, a raise in the dopant concentration at the outer peripheral portion of the epitaxial layer 9 can be controlled.
摘要:
There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an average particle diameter smaller than an average particle diameter of the large particle diameter low pore region and a porosity higher than a porosity of the large particle diameter low porosity region, the impregnated-type cathode being impregnated with an electron emission substance.
摘要:
To prevent melting and scattering of a covering-film during ball formation, the covering-film, at the time a ball is formed, has been completely removed from the portion of a covered wire which corresponds to the tail length that protrudes from the tip of a capillary.
摘要:
Disclosed is a multi-media document editing system capable of editing display positions (spatial structures) of a group of multi-media data as well as display start and display end (temporal structures) in a simple manner through an editing interface. The multi-media document editing system is provided with a multi-media data storage means for storing a plurality of multi-media data elements, a multi-media document holding means for holding a multi-media document containing structural information relating to time and display position in the reproduction of each of the multi-media data stored in said multi-media data storage means, an editing means for connecting the elements in the structural information of the multi-media document through a link structure element, and a multi-media document reproducing means for reproducing each of the multi-media data elements stored in said multi-media data storage means in accordance with the structural information of the multi-media document which has been edited by said editing means.
摘要:
A die push-up assembly used in a bonding machine, such as a die bonding or a tape bonding device, is provided on a die-push-up assembly adjustment device including an X-direction adjustment plate which has a pivot shaft, a Y-direction adjustment plate which is mounted on the X-direction adjustment plate so as to be movable in the Y-direction, an X-direction adjustment screw which allows the X-direction adjustment plate to pivot in the X direction about the pivot shaft, an eccentric shaft which allows the Y-direction adjustment plate to move in the Y direction, a first fastening screw which fastens the X-direction adjustment plate to the bonding apparatus, and a second fastening screw which fastens the Y-direction adjustment plate to the X-direction adjustment plate. The die push-up assembly is mounted on the Y direction adjustment plate so as to be adjusted in the horizontal direction.
摘要:
A die push-up device used in a bonding machine for semiconductor devices, etc. including a wafer sheet suction assembly and a wafer push-up needle which are moved up and down independently by a suction assembly raising-and-lowering cam and a push-up needle raising-and-lowering cam which are respectively rotated by a suction assembly raising-and-lowering motor and a push-up needle raising-and-lowering motor.
摘要:
A video storage type communication device stores video data received from a terminal and reproduces required video information by rapid forwarding or reversing at any desired frame rate at the terminal independent of the terminal specification. A video storage type communication device includes a transmitting portion for transmitting video data and a receiving portion for receiving video data over a communication line. A video storage portion stores received video data. A communication control portion carries out video communication by controlling the above-mentioned portions. A refresh image detecting portion judges, from the received video data, whether the received video data is a refresh image. A storage control portion adds inter-frame or intra-frame prediction coded information to the received video data in accordance with the determination by the refresh image detecting portion and stores the received video data in the video storage portion. A terminal control portion sends at a desired interval a request for updating a display image through the communication control portion to a terminal during storing of video information.
摘要:
A method of producing an aperture grill of a CRT display device is disclosed. The aperture grill is of a small thickness of the order of 20 to 100 .mu.m. To a metal plate with front and rear surface resin layers are applied front slit pattern mask with a single broad slit pattern and a rear slit pattern mask with two adjacent, narrow slit patterns. With these two masks disposed in opposition, the slit patterns are printed and developed on the resist layers. Thereafter, etching is carried out on the rear surface of the metal plate via the rear resist layer, and rear cavities are formed in the metal plate. Then, a reinforcing, etchant-proof film is attached to the rear resist layer to cover the rear cavities, and thereafter etching is carried out on the front surface of the metal plate via the front resist layer, to thereby form a front cavity. As the front etching proceeds, the front cavity is caused to communicate with the rear cavities with the etchant flowing into the rear cavities, and the front and rear cavities are made into a single through slit. Thereafter the reinforcing film is removed. The method makes it possible to easily produce slits of dimensional accuracy.
摘要:
An image processing device including a blocking section for dividing an input image into a plurality of blocks each consisting of N1.times.N2 (N1, N2: positive integers) picture elements; a block attribute determining section for determining an attribute of each block, the attribute being defined as one of a flat portion having substantially no density variation in each block, a semi-flat portion having a binary density distribution in each block, and an edge portion having a steep density variation in each block; a first coding section for coding each block of the flat portion; a second coding section for coding each block of the semi-flat portion; a third coding section for predictively coding the picture elements in each block of the edge portion; a fourth coding section for coding the attribute determined by the block attribute determining section; and a code assembling section for assembling codes obtained by the first to fourth coding sections. Accordingly, an image quality, compression rate, processing time, etc. can be further improved.
摘要:
An ink jet recording apparatus and method having an ink jet head. The ink jet head includes a housing made of a material having a high coefficient of thermal conductivity, including at least one heat source, and arranged so as to confront a recording medium; an ink holding member arranged inside the housing, the ink holding member transmitting heat generated by the heat source to melt a solid-phase ink put into the housing for holding the molten ink by capillary action; a nozzle formed member being part of the ink holding member and having at least one nozzle orifice arranged so as to confront the recording medium; and a pressure generating member arranged within the ink holding member for generating a pressure which causes ink near the nozzle orifice to jet in the form of ink drops. The ink jet recording method is achieved by the apparatus thus constructed.