Abstract: A susceptor for use in an epitaxial growth apparatus and method where a plurality of circular through-holes are formed in the bottom wall of a pocket in an outer peripheral region a distance of up to about ½ the radius toward the center of the circular bottom wall. The total opening surface area of these through-holes is 0.05 to 55% of the surface area of the bottom wall. The opening surface area of each of the through-holes provided at this outer peripheral region is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2. After a semiconductor wafer is mounted in the pocket, epitaxial growth is carried out while source gas and carrier gas (i.e., reactive gas) is made to flow on the upper surface side of the susceptor and carrier gas is made to flow on the lower surface side.

Abstract: There is provided a susceptor for a vapor phase epitaxial growth device, by which skidding at the time of loading a silicon wafer is prevented and the wafer can be loaded at a fixed position of the susceptor: wherein a ring-shaped groove having sloping planes widening toward a surface of the susceptor are formed on the outermost circumference of the bottom surface; and gas release openings penetrating through to the back surface of the susceptor are formed, each having a sectional area of 2.0 to 3.0 mm2 and a ratio of all opening areas is 0.25 to 0.5% on the bottom surface.

Abstract: The invention provides an IP telephone terminal. An IP telephone terminal includes an identification data receiving unit, a communicating unit, an IP telephone function controlling unit, a determining unit, a terminal data acquiring unit, and a terminal data acquiring unit. The identification data receiving unit receives, over an Internet, identification data identifying another IP telephone terminal. The communicating unit establishes IP telephone communications with the other IP telephone terminal identified by the identification data via the Internet. The IP telephone function controlling unit controls execution of an IP telephone function used to implement a telephone call with the another IP telephone terminal via the communicating unit. The determining unit determines the identification data received by the identification data receiving unit.

Abstract: An IP telephone system includes a first IP telephone terminal and a second IP telephone terminal. IP telephone communications are established between the first and second IP telephone terminals via Internet when the second IP telephone terminal has acquired identification data identifying the first IP telephone terminal. The second IP telephone terminal further acquires terminal data identifying a function that the first IP telephone terminal can control via Internet. The first IP telephone terminal receives from the second IP telephone terminal data instructing to execute the function that the first IP telephone terminal can control. Then, the first IP telephone terminal controls execution of the function identified by the data received from the second IP telephone terminal.

Abstract: A print control apparatus which is connected to a print device for printing an image by fixing ink on a recording paper and which controls the print device, including: a paper-type identifying portion which identifies a type of the recording paper on which the print device prints the image, on the basis of at least one of an input operation by an operator and pre-set contents; and an ink determining portion which determines ink to be used by the print device in order to print the image on the recording paper that is identified by the paper-type identifying portion, on the basis of ink fixation information which indicates a level of ink fixation and which is inputted by the input operation by the operator.

Abstract: In a susceptor (10) having a wafer pocket (101) for receiving a wafer W at the time of vapor-phase growth, the wafer pocket has at least a first pocket portion (102) for loading an outer circumferential portion of the wafer and a second pocket portion (103) formed to be lower than the first pocket and having a smaller diameter than that of the first pocket portion, and a fluid passage (105) having one end (105a) opening on a vertical wall (103a) of said second pocket portion and the other end (105b) opening on a back surface (104) or a side surface (106) of the susceptor is formed.

Abstract: An information processing apparatus that includes: a layout area acquisition unit which obtains in order to output a plurality of images of a same size for a single page of a recording sheet, a size of a layout area on the recording sheet on which the images are to be arranged; an image size acquisition unit which obtains the size of the images; an image arranging unit which creates data for arranging the images so that margins are not generated between the images in the layout area; and a data output unit which outputs an instruction to a printing unit to print layout data for the images.

Abstract: A low-cost controller that operates in accordance with firmware stored in a memory. The controller includes a data processing circuit that performs predetermined processing on data and generates processed data. A write wire is connected to the memory, and a terminal is provided for use in the output of the data processed by the data processing circuit and/or the provision of the data to the data processing circuit. The controller includes a selector for connecting the write wire and the terminal to write the firmware to the memory.

Abstract: A single opening is formed in a central portion of a susceptor of a vapor phase epitaxial growth system. Consequently, any dopant diffused off outwardly from the back surface of a wafer during an epitaxial growth process can be exhausted through the opening to the beneath side with respect to the susceptor. As a result, it may become difficult for auto-doping to be induced, even with no protective film formed on a back surface of the wafer. Uniformity in a dopant concentration in the surface may be improved and thus a resistivity may be made uniform. Further, since a temperature of the back surface of the wafer is measured through the opening, a heating temperature can be controlled stably, thus allowing a precise temperature control thereof. Consequently, the epitaxial film as well as the distribution of its resistivity may be made uniform across the entire wafer.

Abstract: A susceptor for use in an epitaxial growth apparatus and method where a plurality of circular through-holes are formed in the bottom wall of a pocket in an outer peripheral region a distance of up to about ½ the radius toward the center of the circular bottom wall. The total opening surface area of these through-holes is 0.05 to 55% of the surface area of the bottom wall. The opening surface area of each of the through-holes provided at this outer peripheral region is 0.2 to 3.2 mm2 and the density of the through-holes is 0.25 to 25 per cm2. After a semiconductor wafer is mounted in the pocket, epitaxial growth is carried out while source gas and carrier gas (i.e., reactive gas) is made to flow on the upper surface side of the susceptor and carrier gas is made to flow on the lower surface side.

Abstract: A decoder for decreasing the load on a microcomputer. The decoder stores in a buffer memory in sector units digital data. The decoder includes a check head register for storing a first address of the buffer memory when storing the processed digital data in the buffer memory. A check sector counter counts the number of sectors of the processed digital data stored in the buffer memory to generate a count value. A command decision circuit decides whether digital data requested to be transferred is stored in the buffer memory based on the first address, the count value, and a head address of the digital data. The command decision circuit permits the decoder to transfer the processed digital data when deciding that the digital data requested to be transferred is stored in the buffer memory.

Abstract: A CD-ROM decoder that performs code error correction and/or code error detection on digital data partitioned in sectors having a certain format includes a circuit for reading and analyzing the header information stored with each sector of CD-ROM data, which relieves a control microprocessor of having to perform such task. A header information register stores the header information for each sector of data. A sector information conversion circuit connected to the header information register determines the specific format of the sector data and generates corresponding sector information. The sector data and the corresponding sector information are stored in a buffer memory.

Abstract: A CD-ROM decoder for decreasing the load on a microcomputer. The CD-ROM decoder stores in a buffer memory in sector units digital data. The CD-ROM decoder includes a check head register for storing a first address of the buffer memory when storing the processed digital data in the buffer memory. A check sector counter counts the number of sectors of the processed digital data stored in the buffer memory to generate a count value. A command decision circuit decides whether digital data requested to be transferred is stored in the buffer memory based on the first address, the count value, and a head address of the digital data. The command decision circuit permits the CD-ROM decoder to transfer the processed digital data when deciding that the digital data requested to be transferred is stored in the buffer memory.

Abstract: A single opening is formed in a central portion of a susceptor of a vapor phase epitaxial growth system. Consequently, any dopant diffused off outwardly from the back surface of a wafer during an epitaxial growth process can be exhausted through the opening to the beneath side with respect to the susceptor. As a result, it may become difficult for auto-doping to be induced, even with no protective film formed on a back surface of the wafer. Uniformity in a dopant concentration in the surface may be improved and thus a resistivity may be made uniform. Further, since a temperature of the back surface of the wafer is measured through the opening, a heating temperature can be controlled stably, thus allowing a precise temperature control thereof. Consequently, the epitaxial film as well as the distribution of its resistivity may be made uniform across the entire wafer.

Abstract: A low-cost controller that operates in accordance with firmware stored in a memory. The controller includes a data processing circuit that performs predetermined processing on data and generates processed data. A write wire is connected to the memory, and a terminal is provided for used in the output of the data processed by the data processing circuit and/or the provision of the data to the data processing circuit. The controller includes a selector for connecting the write wire and the terminal to write the firmware to the memory.

Abstract: A CD-ROM decoder that reduces the load on a microcomputer temporarily stores in a buffer memory in sector units digital data having a predetermined number of bytes and a predetermined format. The CD-ROM also processes the digital data by correcting and detecting code errors included in the digital data. Further, the CD-ROM decoder transfers the processed digital data. The CD-ROM decoder includes a command register for storing a data transfer request command that includes format information of transfer request data and a data transfer circuit connected to the command register. The data transfer circuit decides the format information of the data transfer request command and determines the byte number of the processed digital data that is to be transferred. Further, the data transfer circuit reads the processed digital data from the buffer memory based on the determined byte number and transfers the read processed digital data.

Abstract: A CD-ROM decoder that reduces the load on a microcomputer. The CD-ROM decoder temporarily stores in a buffer memory in sector units digital data. The CD-ROM decoder processes the digital data by correcting and detecting code errors included in the digital data. The CD-ROM decoder includes a first counter for counting the number of sectors of the digital data temporarily stored in the buffer memory to generate a first count value and a second counter for counting the number of sectors of the processed digital data transferred from the buffer memory to generate a second count value. A first buffering control circuit deciding an unused capacity of the buffer memory based on the first and second count values to stop the storing of the digital data to the buffer memory when the unused capacity is equal to or less than a predetermined value.

Abstract: A CD-ROM decoder for decreasing the load on a microcomputer. The CD-ROM decoder stores in a buffer memory in sector units digital data. The CD-ROM decoder includes a check head register for storing a first address of the buffer memory when storing the processed digital data in the buffer memory. A check sector counter counts the number of sectors of the processed digital data stored in the buffer memory to generate a count value. A command decision circuit decides whether digital data requested to be transferred is stored in the buffer memory based on the first address, the count value, and a head address of the digital data. The command decision circuit permits the CD-ROM decoder to transfer the processed digital data when deciding that the digital data requested to be transferred is stored in the buffer memory.

Abstract: Font packing device and font unpacking device aims at storing a bit map font at a high packing ratio, and processing and unpacking the packed data with a simple hardware configuration at a high speed. Bit map data of each character is equally divided into a plurality of blocks. If the plural blocks share the same bit map data, then the bit map data is stored for only one block collectively. At this time, addresses indicating the storage area of the shared bit map data for the other blocks are stored. If a bit map data is used for one block only and not shared with any other blocks, then the data is stored with an address indicating the storage area.

Abstract: There is provided a color display tube having an in-line electron gun for emitting a plurality of electron beams comprising a convergence device for converging the plurality of electron beams emitted from the electron gun onto a predetermined point by using a magnetic field, a deflection device for deflecting the electron beams converged by said convergence device by using a deflection magnetic field, and a field controller disposed between the convergence device and the deflection device in order to adjust the distribution of leakage magnetic field from the deflection device so as to make the leakage magnetic field exert influence upon respective electron beams uniformly, the field controller comprising a magnetic material having relative permeability of 3,000 H/m or more and coercive force of 0.025 Oe or less.