Abstract: An n+ layer 3a connected to a source line SL at both ends, an n+ layer 3b connected to a bit line BL, a first gate insulating layer 4a formed on a semiconductor substrate 1 existing on an insulating film 2, a gate conductor layer 16a connected to a plate line PL, a gate insulating layer 4b formed on the semiconductor substrate, and a second gate conductor layer 5b connected to a word line WL and having a work function different from a work function of the gate conductor layer 16a are disposed on the semiconductor substrate, and data hold operation of holding, near a gate insulating film, holes generated by an impact ionization phenomenon or gate-induced drain leakage current inside a channel region 12 of the semiconductor substrate 1 and data erase operation of removing the holes from inside the substrate 1 and the channel region 12 are performed by controlling voltage applied to the source line SL, the plate line PL, the word line WL, and the bit line BL.

Abstract: A soft magnetic alloy includes a main component of (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))MaBbPcSidCe. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020?a?0.14 is satisfied. 0.020<b?0.20 is satisfied. 0?d?0.060 is satisfied. ??0 is satisfied. ??0 is satisfied. 0??+??0.50 is satisfied. c and e are within a predetermined range. The soft magnetic alloy has a nanohetero structure or a structure of Fe based nanocrystallines.

Abstract: A memory device includes pages in a column direction on a substrate and memory cells in each page in a row direction in plan view. Each memory cell includes a semiconductor base, first and second impurity regions at both ends of the semiconductor base, and first and second gate conductor layers. A page erase operation, a page write operation, and a page read operation are performed by controlling voltages applied to the first and second impurity regions and the first and second gate conductor layers. In a first page group including at least one page, a refresh operation of increasing positive holes is performed in a memory cell storing logical data “1”. The refresh operation is performed continuously to an N-th page group.

Abstract: A memory device includes pages in a column direction on a substrate and memory cells in each page in a row direction in plan view. Each memory cell includes a semiconductor base, first and second impurity regions, connected to a source line and a bit line, respectively, at both ends of the semiconductor base, and first and second gate conductor layers, one of which is connected to a word line and the other of which is connected to a plate line. A continuous operation of a page erase operation and a page write operation is performed by controlling voltages applied to the source line, the bit line, the word line, and the plate line without performing a reset operation for returning the voltage applied to the plate line to a ground voltage.

Abstract: A dynamic flash memory includes a p layer as a semiconductor base material, first and second n+ layers on opposite sides thereof, first and second gate insulating layers in contact with each other and partially covering the p layer, and first and second gate conductor layers electrically isolated from each other and respectively provided on the first and second gate insulating layers. The first and second n+ layers and first and second gate conductor layers are respectively connected to source, bit, word, and plate lines. During writing, 1.0 V, 1.5 V, and 1.2 V are sequentially applied to the bit, plate, and word lines, respectively. During erasing, 2 V is applied to the plate line, and then, a voltage applied to each terminal is always set 0 V or greater (e.g., 0.6 V for the bit line). Further, during reading, voltages are sequentially applied to the bit, plate, and word lines.

Abstract: An object is to provide a grease composition for a ball joint capable of reducing the starting torque, reducing the operating torque, and improving the low temperature property as compared with the related art. The grease composition for a ball joint according to the present invention contains a silicone oil as a base oil and an additive, and contains an amino-modified silicone and a modified polyolefin as the additive. The silicone oil preferably includes at least one of dimethyl silicone oil and phenyl-modified silicone oil.

Abstract: A counting unit of a base station counts the number of terminals located in an area covered by the base station for each of communication carriers corresponding to the terminals. An assigning unit assigns each of cells in a first group to any of the communication carriers, where each of the cells is a frequency band of the base station 10 and occupied by one terminal communicating with the cell.

Abstract: A piezoelectric vibrating device and a piezoelectric vibrating piece including an excitation unit, a framing portion and a connecting portion are provided. The excitation unit includes a first side extending in a first direction and a second side extending in a second direction. The connecting portion has a thickness of a first thickness in a third direction perpendicular to the first direction and the second direction. The excitation unit includes a first region, a second region and a third region. The pair of excitation electrodes are disposed on the first region. The second region with the first thickness is directly connected to the connecting portion. The third region is disposed between the first region and the second region. The third region has a thickness in the third direction of a second thickness. The second region has a thickness in the third direction that is thicker than the second thickness.

Abstract: A crystal device is provided, in which a peeling of a bonding material is prevented by using the bonding material having a thermal expansion coefficient which is between the coefficients in a first direction and a second direction of a bonding surface of a crystal element. A crystal device includes a rectangular crystal element formed with a crystal material that includes an excitation part and a frame surrounding the excitation part. The device further includes a rectangular base bonded to a principal surface of the frame, and a lid bonded to another principal surface of the frame; and the frame, the base and the lid have edges respectively along a first direction and a second direction intersecting with the first direction. The bonding material is applied having a thermal expansion coefficient that is between the coefficients in the first direction and second direction of the crystal element.

Abstract: AT-cut quartz-crystal vibrating pieces and corresponding quartz-crystal devices are disclosed each having a vibrating portion surrounded by a frame portion across a through-slot configured to provide a wide vibrating portion. An exemplary vibrating piece has a quartz-crystal vibrating portion that vibrates when electrically energized, a frame portion surrounding the vibrating portion, and a through-slot defined between the vibrating portion and the frame portion. The through-slot includes a first through-slot extending in the X-axis direction along +Z?-edge of the vibrating portion, and a second through-slot extending in the X-axis direction along the ?Z?-edge of the vibrating portion. The first through-slot has a different width than the second through-slot.

Abstract: A counting unit of a base station counts the number of terminals located in an area covered by the base station for each of communication carriers corresponding to the terminals. An assigning unit assigns each of cells in a first group to any of the communication carriers, where each of the cells is a frequency band of the base station 10 and occupied by one terminal communicating with the cell.

Abstract: A crystal device includes; a base, a framed crystal vibrating blank in which a mesa section is formed on an upper face end bonded to a seal path on an upper surface of the base via a low melting point glass layer or a resin adhesive layer, and a lid bonded to a seal path on an upper surface of the framed crystal vibrating blank via a low melting point glass layer or a resin adhesive layer. A pillow made of low melting point glass or a resin adhesive that suppresses vibration amplitude at the time of a drop impact of the framed crystal vibrating blank is formed on a rear surface of the lid simultaneously with the low melting point glass layer or the resin adhesive layer.

Abstract: A piezoelectric vibrating device and a piezoelectric vibrating piece including an excitation unit, a framing portion and a connecting portion are provided. The excitation unit includes a first side extending in a first direction and a second side extending in a second direction. The connecting portion has a thickness of a first thickness in a third direction perpendicular to the first direction and the second direction. The excitation unit includes a first region, a second region and a third region. The pair of excitation electrodes are disposed on the first region. The second region with the first thickness is directly connected to the connecting portion. The third region is disposed between the first region and the second region. The third region has a thickness in the third direction of a second thickness. The second region has a thickness in the third direction that is thicker than the second thickness.

Abstract: A crystal device is provided, in which a peeling of a bonding material is prevented by using the bonding material having a thermal expansion coefficient which is between the coefficients in a first direction and a second direction of a bonding surface of a crystal element. A crystal device includes a rectangular crystal element formed with a crystal material that includes an excitation part and a frame surrounding the excitation part. The device further includes a rectangular base bonded to a principal surface of the frame, and a lid bonded to another principal surface of the frame; and the frame, the base and the lid have edges respectively along a first direction and a second direction intersecting with the first direction. The bonding material is applied having a thermal expansion coefficient that is between the coefficients in the first direction and second direction of the crystal element.

Abstract: A crystal device includes; a base, a framed crystal vibrating blank in which a mesa section is formed on an upper face end bonded to a seal path on an upper surface of the base via a low melting point glass layer or a resin adhesive layer, and a lid bonded to a seal path on an upper surface of the framed crystal vibrating blank via a low melting point glass layer or a resin adhesive layer. A pillow made of low melting point glass or a resin adhesive that suppresses vibration amplitude at the time of a drop impact of the framed crystal vibrating blank is formed on a rear surface of the lid simultaneously with the low melting point glass layer or the resin adhesive layer.

Abstract: AT-cut quartz-crystal vibrating pieces and corresponding quartz-crystal devices are disclosed each having a vibrating portion surrounded by a frame portion across a through-slot configured to provide a wide vibrating portion. An exemplary vibrating piece has a quartz-crystal vibrating portion that vibrates when electrically energized, a frame portion surrounding the vibrating portion, and a through-slot defined between the vibrating portion and the frame portion. The through-slot includes a first through-slot extending in the X-axis direction along +Z?-edge of the vibrating portion, and a second through-slot extending in the X-axis direction along the ?Z?-edge of the vibrating portion. The first through-slot has a different width than the second through-slot.

Abstract: The quartz crystal device includes a container body having: a recess; a pair of holding terminals formed on an inner bottom surface of the recess; and a crystal blank, both principal surfaces of which are provided with excitation electrodes with lead-out electrodes extending from the pair of excitation electrodes toward both sides of one end of the crystal blank. Both sides of one end of the crystal blank are fixed to the holding terminals using a conductive adhesive. Pillow members are provided on the inner bottom surface of the recess at positions corresponding to corners on both sides of the other end of the crystal blank, and the two pillow members are independent of each other. Alternatively, each holding terminal includes a first region formed near the facing holding terminal and a second region having a greater thickness than the first region formed far from the facing holding terminal.

Abstract: The quartz crystal device includes a container body having: a recess; a pair of holding terminals formed on an inner bottom surface of the recess; and a crystal blank, both principal surfaces of which are provided with excitation electrodes with lead-out electrodes extending from the pair of excitation electrodes toward both sides of one end of the crystal blank. Both sides of one end of the crystal blank are fixed to the holding terminals using a conductive adhesive. Pillow members are provided on the inner bottom surface of the recess at positions corresponding to corners on both sides of the other end of the crystal blank, and the two pillow members are independent of each other. Alternatively, each holding terminal includes a first region formed near the facing holding terminal and a second region having a greater thickness than the first region formed far from the facing holding terminal.

Abstract: The present invention relates to a crystal unit in which rectangular excitation electrodes are formed on two main surfaces of a rectangular crystal piece, an extracting electrode extends from at least one corner portion at each of two end portions from each of the excitation electrodes, and one of the corner portions of the crystal piece from which each extracting electrode extends is affixed by an electrically conductive adhesive to a step portion of the board, wherein a cutaway portion is provided in a corner portion of each of the excitation electrodes corresponding to one corner portion of the crystal piece, to increase the distance from the corner portion of the crystal piece, and the cutaway portion is formed as either a straight line or a curve. This provides a crystal unit in which contact between the excitation electrodes of the crystal piece and the electrically conductive adhesive is prevented, enabling reliable resonance.

Abstract: The present invention relates to a crystal oscillator formed of an AT-cut crystal piece having a rectangular shape in plan view with long edges and short edges; where a large number of the crystal pieces are placed within a hollow container having a curved inner periphery and the crystal pieces are ground along the inner periphery of the hollow container as the hollow container is rotated; an inclined portion is provided over the entire outer periphery of each of two principal surface sides of the crystal piece; and a central region of the crystal piece is a flatter portion; wherein the flatter-portion length ratio L2/L1 of the length L1 in the long-edge direction of the crystal piece and the length L2 of the flatter portion is between 0.24 and 0.