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公开(公告)号：US20140049341A1
公开(公告)日：2014-02-20
申请号：US14112547
申请日：2013-02-05
IPC分类号： H03H9/54
CPC分类号： H03H9/54 , H03H9/008 , H03H9/0566 , H03H9/0576 , H03H9/14582 , H03H9/14588 , H03H9/6436
摘要： A multimode elastic wave device includes a pair of reflectors, and a first interdigital transducer (IDT) electrode through a fifth IDT electrode arranged between the pair of reflectors. In this configuration, each of the average of electrode-finger pitches in the first IDT electrode and the average of electrode-finger pitches in the fifth IDT electrode is smaller than both of the average of electrode-finger pitches in the second IDT electrode and the average of electrode-finger pitches in the fourth IDT electrode.
摘要翻译： 多模弹性波装置包括一对反射器，以及通过布置在该对反射器之间的第五IDT电极的第一叉指式换能器（IDT）电极。 在该结构中，第一IDT电极中的电极指间隔的平均值和第五IDT电极中的电极指间隔的平均值均小于第二IDT电极中的电极指间隔的平均值， 第四IDT电极中电极指间隔的平均值。
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公开(公告)号：US08624379B2
公开(公告)日：2014-01-07
申请号：US13610935
申请日：2012-09-12
IPC分类号： H01L23/52
CPC分类号： H01L27/088 , H01L23/49524 , H01L23/49562 , H01L23/49575 , H01L24/37 , H01L24/40 , H01L24/45 , H01L24/73 , H01L2224/32245 , H01L2224/37011 , H01L2224/371 , H01L2224/37124 , H01L2224/37147 , H01L2224/37599 , H01L2224/40095 , H01L2224/40245 , H01L2224/45015 , H01L2224/45124 , H01L2224/45144 , H01L2224/45147 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2224/49175 , H01L2224/73221 , H01L2224/73263 , H01L2224/73265 , H01L2224/83801 , H01L2224/8385 , H01L2224/84801 , H01L2224/8485 , H01L2924/01015 , H01L2924/01047 , H01L2924/12036 , H01L2924/1306 , H01L2924/13091 , H01L2924/181 , H01L2924/351 , H01L2924/00012 , H01L2924/00014 , H01L2924/00
摘要： A semiconductor device is improved in reliability. A switching power MOSFET and a sense MOSFET for sensing a current flowing in the power MOSFET, which is smaller in area than the power MOSFET, are formed in one semiconductor chip. The semiconductor chip is mounted over a chip mounting portion via a conductive bonding material, and sealed in a resin. Over the main surface of the semiconductor chip, a metal plate is bonded to a source pad electrode of the power MOSFET. In the plan view, the metal plate does not overlap a sense MOSFET region where the sense MOSFET is formed. The metal plate is bonded to the source pad electrode so as to surround three of the sides of the sense MOSFET region.
摘要翻译： 提高了半导体器件的可靠性。 用于感测在功率MOSFET中流过的电流的开关功率MOSFET和感测MOSFET的面积比功率MOSFET小，形成在一个半导体芯片中。 半导体芯片通过导电接合材料安装在芯片安装部分上，并密封在树脂中。 在半导体芯片的主表面上，金属板被结合到功率MOSFET的源极焊盘电极。 在平面图中，金属板不与形成感测MOSFET的感测MOSFET区域重叠。 金属板与源极焊盘电极接合，以便围绕感测MOSFET区域的三个侧面。
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公开(公告)号：US08487720B2
公开(公告)日：2013-07-16
申请号：US13037640
申请日：2011-03-01
CPC分类号： H03H9/64
摘要： An acoustic wave resonator includes a piezoelectric substrate and first and second comb-shaped electrodes provided on the piezoelectric substrate and interdigitating with each other. The first comb-shaped electrode includes a first busbar and first electrode fingers extending in a direction non-perpendicular to a direction in which the first busbar extends. The second comb-shaped electrode includes a second busbar and second electrode fingers extending from the second busbar and interdigitating with the first electrode fingers at an interdigitating region. This acoustic wave resonator can suppress a spurious response due to a transverse mode and has a high Q value.
摘要翻译： 声波谐振器包括压电基片和设置在压电基片上并相互交错的第一和第二梳状电极。 第一梳状电极包括第一母线和在与第一母线延伸的方向非垂直的方向上延伸的第一电极指。 第二梳状电极包括从第二母线延伸的第二母线和第二电极指，并且在第一电极指与叉指区交叉。 该声波谐振器可以抑制由横向模式引起的寄生响应并具有高Q值。
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公开(公告)号：US08436778B2
公开(公告)日：2013-05-07
申请号：US12989807
申请日：2009-11-20
IPC分类号： H01Q1/00
摘要： An antenna duplexer includes a transmission filter and a reception filter both coupled with an antenna terminal. A pass band of the transmission filter is lower than a pass band of the reception filter. The transmission filter includes a first series resonator coupled with a first terminal, a second series resonator connected to the first series resonator at a first node, a first parallel resonator connected to a first port of the first series resonator, a second parallel resonator connected to a first node and the first parallel resonator at a second node, a third parallel resonator connected to the first node, a fourth parallel resonator connected to the third parallel resonator at a third node, a first inductance element coupled with the second node and a ground, and a second inductance element coupled with the third node and the ground. The first and second parallel resonators and the first inductance element produce an attenuation pole at a frequency lower than a pass band of the transmission filter. The third and fourth parallel resonators and the second inductance element produce an attenuation pole at a frequency higher than a pass band of the transmission filter. The inductance of the second inductance element is lower than the inductance of the first inductance element. In this antenna duplexer, the transmission filter sufficiently suppresses a spurious caused by harmonics contained in a transmission signal.
摘要翻译： 天线双工器包括与天线端子耦合的发送滤波器和接收滤波器。 发送滤波器的通带低于接收滤波器的通带。 传输滤波器包括与第一端子耦合的第一串联谐振器，在第一节点处连接到第一串联谐振器的第二串联谐振器，连接到第一串联谐振器的第一端口的第一并联谐振器，连接到 在第二节点处的第一节点和第一并联谐振器，连接到第一节点的第三并联谐振器，在第三节点处连接到第三并联谐振器的第四并联谐振器，与第二节点耦合的第一电感元件和地 以及与第三节点和地面耦合的第二电感元件。 第一和第二并联谐振器和第一电感元件在低于发送滤波器的通带的频率处产生衰减极点。 第三和第四并联谐振器和第二电感元件以比传输滤波器的通带高的频率产生衰减极点。 第二电感元件的电感低于第一电感元件的电感。 在该天线双工器中，发送滤波器充分抑制由发送信号中包含的谐波引起的杂波。
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165.发明授权公开(公告)号：US08405860B2
公开(公告)日：2013-03-26
申请号：US12841107
申请日：2010-07-21
申请人： Hiroyuki Nakamura
发明人： Hiroyuki Nakamura
CPC分类号： H04N1/00214 , G06F3/1215 , G06F3/1236 , G06F3/1284 , G06F21/608 , H04N2201/0041 , H04N2201/0049
摘要： A host computer and recording device can be connected using an existing communication interface, and data can be transmitted between the host computer and recording device at high speed. A recording system 1 has a printer 4 with a plurality of serial interfaces 4A, 4B that can communicate independently, and a host computer 2 with a plurality of serial interfaces 2A, 2B that can communicate independently. The serial interfaces 4A, 4B and serial interfaces 2A, 2B are connected 1:1 to form communicate lines. A plurality of virtual communication channels are assigned to these communication lines and data is exchanged by packet communication over these communication channels. When the printer 4 and host computer 2 are connected through a plurality of communication lines 3A, 3B, only the data channel 31 is assigned to at least one communication line 3A.
摘要翻译： 可以使用现有的通信接口连接主机和记录设备，并且可以在主机和记录设备之间高速传输数据。 记录系统1具有能够独立通信的多个串行接口4A，4B的打印机4和具有能够独立通信的多个串行接口2A，2B的主计算机2。 串行接口4A，4B和串行接口2A，2B以1：1连接以形成通信线路。 多个虚拟通信信道被分配给这些通信线路，并且通过这些通信信道通过分组通信交换数据。 当打印机4和主机2通过多条通信线路3A，3B连接时，仅将数据信道31分配给至少一条通信线路3A。
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公开(公告)号：US08368486B2
公开(公告)日：2013-02-05
申请号：US13551853
申请日：2012-07-18
CPC分类号： H03H9/0576 , H03H9/725
摘要： A duplexer includes an acoustic wave element having a first terminal and a second terminal; a substrate; a first columnar conductor electrically connected to the first terminal, and drawn to a back surface of the substrate while partially in the substrate; a second columnar conductor electrically connected to the second terminal, and drawn to the back surface of the substrate while partially in the substrate. Additionally, a first ground pattern region is between the first columnar conductor drawn part and the second columnar conductor drawn part on the back surface of the substrate; a second ground pattern region is electrically connected to the first ground pattern region and arranged in the part not including the part between the first columnar conductor drawn part and the second columnar conductor drawn part; and a third columnar conductor electrically is connected to the first ground pattern region while partially in the substrate.
摘要翻译： 双工器包括具有第一端子和第二端子的声波元件; 底物; 电连接到第一端子的第一柱状导体，并且一部分地在衬底中被吸引到衬底的背面; 电连接到第二端子的第二柱状导体，并且一部分地在衬底中被吸引到衬底的背面。 此外，第一接地图案区域位于基板的背面的第一柱状导体拉伸部和第二柱状导体拉伸部之间。 第二接地图案区域电连接到第一接地图案区域并且布置在不包括第一柱状导体拉出部分和第二柱状导体拉出部分之间的部分中; 并且第三柱状导体电连接到第一接地图案区域，同时部分地在基板中。
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公开(公告)号：US08358080B2
公开(公告)日：2013-01-22
申请号：US13005979
申请日：2011-01-13
申请人： Hiroyuki Nakamura
发明人： Hiroyuki Nakamura
IPC分类号： H05B37/00
摘要： A light emitting element driving circuit for driving a light emitting element in accordance with a differential data signal for causing the light emitting element to turn on or turn off is provided. The circuit includes a first transistor, a first constant current source connected to a drain and gate of the first transistor and configured to supply a constant current through the drain and source of the first transistor, a second transistor configured to supply a certain current, and a control circuit configured to electrically connect or disconnect the gate of the first transistor to or from a gate of the second transistor via a first resistor. The control circuit may supply, to the gate of the second transistor, an intermediate potential in accordance with the other of the differential data signals, while the gate of the first transistor is electrically disconnected from the gate of the second transistor.
摘要翻译： 提供了一种用于根据用于使发光元件导通或关闭的差分数据信号来驱动发光元件的发光元件驱动电路。 该电路包括第一晶体管，连接到第一晶体管的漏极和栅极的第一恒流源，并且被配置为提供恒定电流通过第一晶体管的漏极和源极，被配置为提供一定电流的第二晶体管，以及 配置为经由第一电阻器将第一晶体管的栅极电连接到第二晶体管的栅极或从第二晶体管的栅极电连接或断开的控制电路。 当第一晶体管的栅极与第二晶体管的栅极电断开时，控制电路可以向第二晶体管的栅极提供根据另一个差分数据信号的中间电位。
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公开(公告)号：US20120086521A1
公开(公告)日：2012-04-12
申请号：US13378129
申请日：2010-06-15
申请人： Tetsuya Tsurunari , Rei Goto , Hiroyuki Nakamura
发明人： Tetsuya Tsurunari , Rei Goto , Hiroyuki Nakamura
CPC分类号： H03H9/6483 , H03H9/02834 , H03H9/02944 , H03H9/725
摘要： An object of the present invention is to improve the passing characteristic at high temperature in a ladder-type elastic wave filter and a duplexer including the filter. The ladder-type elastic wave filter of the present invention includes a piezoelectric substrate, a first series elastic-wave resonator formed on the piezoelectric substrate and connected in series between the input and output terminals of the filter, a parallel elastic-wave resonator formed on the piezoelectric substrate and connected in parallel between the series elastic-wave resonator and the ground terminal, and a dielectric film formed on the piezoelectric substrate so as to cover the first series elastic-wave resonator. The piezoelectric substrate is formed of a material with a negative temperature coefficient. The dielectric film is formed of a material with a positive temperature coefficient and its film thickness is formed thicker than that with which the frequency-temperature coefficient of the first series elastic-wave resonator becomes 0.
摘要翻译： 本发明的目的是提高梯型弹性波滤波器和包括滤波器的双工器在高温下的通过特性。 本发明的梯形弹性波滤波器包括：压电基板，形成在压电基板上的第一串联弹性波谐振器，并串联连接在滤波器的输入和输出端子之间;平行弹性波谐振器，形成在 所述压电基板并联在所述串联弹性波谐振器和所述接地端子之间，以及形成在所述压电基板上以覆盖所述第一串联弹性波谐振器的电介质膜。 压电基板由具有负温度系数的材料形成。 电介质膜由具有正温度系数的材料形成，并且其膜厚形成得比第一串联弹性波谐振器的频率 - 温度系数变为0的厚度厚。
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公开(公告)号：US08154171B2
公开(公告)日：2012-04-10
申请号：US12680774
申请日：2008-10-21
申请人： Kazunori Nishimura , Hiroyuki Nakamura , Hidekazu Nakanishi , Ryouichi Takayama , Takashi Inoue
发明人： Kazunori Nishimura , Hiroyuki Nakamura , Hidekazu Nakanishi , Ryouichi Takayama , Takashi Inoue
IPC分类号： H03H9/25
CPC分类号： H03H9/0222 , H03H9/02574
摘要： A boundary acoustic wave device includes a first medium layer made of piezoelectric material, a second medium layer provided on the first medium layer, a third medium layer provided on the second medium layer, and an electrode provided at an interface between the second and third medium layers. The electrode drives the third medium layer to generate a transverse wave. A propagation speed of the transverse wave in the third medium layer is lower than a propagation speed of the transverse wave in the first medium layer. A propagation speed of the transverse wave in the second medium layer is lower than the propagation speed of the transverse wave in the first medium layer. This boundary acoustic wave device has a large electro-mechanical coupling coefficient.
摘要翻译： 弹性边界波装置包括由压电材料制成的第一介质层，设置在第一介质层上的第二介质层，设置在第二介质层上的第三介质层，以及设置在第二介质和第三介质之间的界面处的电极 层。 电极驱动第三介质层产生横波。 第三介质层中的横波的传播速度低于第一介质层中的横波的传播速度。 第二介质层中的横波的传播速度低于第一介质层中的横波的传播速度。 该声界面波装置具有大的机电耦合系数。
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公开(公告)号：US20120019102A1
公开(公告)日：2012-01-26
申请号：US13260798
申请日：2010-04-19
IPC分类号： H01L41/047
CPC分类号： H03H9/02842 , H03H3/10 , H03H9/02834 , H03H9/725
摘要： An acoustic wave element includes a piezoelectric body, first and second interdigital transducer (IDT) electrodes provided on an upper surface of the piezoelectric body, and a first dielectric layer provided on the upper surface of the piezoelectric body to cover the first and second IDT electrodes. The first dielectric layer has a first part directly above the first IDT electrode and a second part directly above the second IDT electrode. The height of an upper surface of the second part of the first dielectric layer is larger than the height of an upper surface of the first part of the first dielectric layer. This acoustic wave element has a preferable temperature characteristic and electromechanical coupling factor,
摘要翻译： 声波元件包括压电体，设置在压电体的上表面上的第一和第二叉指式换能器（IDT）电极，以及设置在压电体的上表面上以覆盖第一和第二IDT电极的第一介电层 。 第一电介质层具有位于第一IDT电极正上方的第一部分和位于第二IDT电极正上方的第二部分。 第一介电层的第二部分的上表面的高度大于第一介电层的第一部分的上表面的高度。 该声波元件具有优选的温度特性和机电耦合系数，
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