公开(公告)号：US20090103335A1

公开(公告)日：2009-04-23

申请号：US12252859

申请日：2008-10-16

申请人： Masaru Nakamura

发明人： Masaru Nakamura

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H02M1/32

摘要： A DC-to-DC converter having an active switch connected between a pair of DC input terminals via the primary winding of a transformer whose secondary winding is connected to a pair of DC output terminals via a rectifying and smoothing circuit. Operating under the control of an output voltage detector circuit, a switch control signal generator rapidly turns the active switch on and off so as to keep the DC output voltage constant. For overcurrent protection, a current detect resistor is connected in series with the active switch for providing an uncorrected current detect signal indicative of the current flowing through the active switch. An overcurrent protector generates, in response to a clocked ramp voltage, a correction voltage which builds up with time during each conducting period of the active switch. The correction voltage is subtracted from the uncorrected current detect signal to provide a corrected current detect signal. The switch control signal generator is caused to turn off the active switch when the corrected current detect signal rises to an overcurrent threshold.

摘要翻译： 一种DC-DC转换器，其具有通过变压器的初级绕组连接在一对DC输入端子之间的有源开关，其次级绕组经由整流和平滑电路连接到一对DC输出端子。 在输出电压检测电路的控制下工作，开关控制信号发生器快速地打开和关闭有源开关，以保持直流输出电压恒定。 对于过流保护，电流检测电阻器与有源开关串联连接，用于提供指示流经有源开关的电流的未校正的电流检测信号。 过电流保护器响应于时钟斜坡电压，在有源开关的每个导通周期期间产生随时间建立的校正电压。 从未校正的电流检测信号中减去校正电压以提供校正的电流检测信号。 当校正的电流检测信号上升到过电流阈值时，使开关控制信号发生器断开有源开关。

公开(公告)号：US07470566B2

公开(公告)日：2008-12-30

申请号：US11444310

申请日：2006-06-01

申请人： Masaru Nakamura ,  Yusuke Nagai

发明人： Masaru Nakamura ,  Yusuke Nagai

IPC分类号： H01L21/44 ,  H01L21/48 ,  H01L21/50

CPC分类号： H01L21/78 ,  B23K26/40 ,  B23K2103/50 ,  B28D5/0011 ,  H01L21/6836 ,  H01L2221/68327

摘要： A method of dividing a wafer having a plurality of devices, which are formed in a plurality of areas sectioned by streets formed in a lattice pattern on the front surface, and having test metal patterns which are formed on the streets, comprising the steps of: a laser beam application step for carrying out laser processing to form a dividing start point along a street on both sides of the test metal patterns by applying a laser beam along the street on both sides of the test metal patterns in the street formed on the wafer; and a dividing step for dividing the wafer which has been laser processed to form dividing start points along the dividing start points by exerting external force to the wafer, resulting in leaving the streets having the test metal patterns formed thereon behind.

公开(公告)号：US07418027B2

公开(公告)日：2008-08-26

申请号：US10702772

申请日：2003-11-07

申请人： Masaru Nakamura

发明人： Masaru Nakamura

IPC分类号： H04B1/00

CPC分类号： H04B1/7172 ,  H04B1/7174

摘要： A transmitter for ultra wideband communications includes a spread modulator for spreading input data to a wideband signal having a form in which a plurality of carriers are constantly transmitted and a amplifier for amplifying the spread signal obtained from the spread modulator. The amplified signal obtained from the amplifier is transmitted as a baseband signal by one of a wired and wireless transmission.

摘要翻译： 用于超宽带通信的发射机包括扩展调制器，用于将输入数据扩展到具有不断发送多个载波的形式的宽带信号和用于放大从扩展调制器获得的扩展信号的放大器。 从放大器获得的放大信号通过有线和无线传输之一作为基带信号发送。

公开(公告)号：US07388763B2

公开(公告)日：2008-06-17

申请号：US11367337

申请日：2006-03-06

申请人： Masaru Nakamura

发明人： Masaru Nakamura

IPC分类号： H02M3/335

CPC分类号： H02M1/36 ,  H02M3/33507

摘要： A switching power supply of the present invention comprises: a switching element through which a DC voltage is supplied via a primary winding; an output voltage detection circuit detecting a voltage of a secondary winding to generate an error signal; a regulator generating a predetermined voltage based on a voltage generated at a node between the switching element and the primary winding; a photocoupler through which a feedback current signal corresponding to the error signal passes; a feedback current detection circuit detecting a feedback current signal; a feedback voltage generation circuit generating a feedback voltage according to the current of the feedback current detection circuit when the switching element is OFF and holding the generated feedback voltage when the switching element is ON; and a control circuit controlling ON/OFF duty of the switching element according to an increase or decrease of the feedback voltage.

摘要翻译： 本发明的开关电源包括：通过初级绕组提供直流电压的开关元件; 检测次级绕组的电压以产生误差信号的输出电压检测电路; 调节器，其基于在所述开关元件和所述初级绕组之间的节点处产生的电压产生预定电压; 一个光电耦合器，通过该光电耦合器对应于误差信号的反馈电流信号通过; 检测反馈电流信号的反馈电流检测电路; 反馈电压产生电路，当所述开关元件断开时，根据所述反馈电流检测电路的电流产生反馈电压，并且当所述开关元件导通时保持所产生的反馈电压; 以及控制电路，根据反馈电压的增减来控制开关元件的导通/截止占空比。

公开(公告)号：US07336508B2

公开(公告)日：2008-02-26

申请号：US11528542

申请日：2006-09-28

申请人： Masaru Nakamura

发明人： Masaru Nakamura

IPC分类号： H02M3/335 ,  H02H7/122

CPC分类号： H02M3/33507 ,  H03K17/165 ,  H03K17/6872

摘要： A switching power source apparatus has a switching element Q1. Between terminals of the switching element Q1, there is parasitic capacitance (C1, C2). A voltage V4 of parasitic oscillation appears at a gate of the switching element Q1 after a flyback period. A voltage detector detects a drop in the voltage V4 and outputs a detection signal V6. The detection signal V6 is delayed by a timer, which outputs an ON start signal synchronized with timing T at which the voltage V4 reaches a bottom level. In response to the ON start signal from the timer, a controller outputs an ON control signal to turn on the switching element Q1. In response to the ON control signal from the controller, a driver applies a drive signal to the gate of the switching element Q1, thereby driving the switching element Q1.

摘要翻译： 开关电源装置具有开关元件Q 1。 在开关元件Q1的端子之间，存在寄生电容（C 1，C 2）。 在回扫时段之后，在开关元件Q1的栅极处出现寄生振荡的电压V 4。 电压检测器检测电压V 4的下降并输出检测信号V 6。 检测信号V 6由定时器延迟，该定时器输出与电压V 4达到底部电平的定时T同步的ON启动信号。 响应于来自定时器的ON启动信号，控制器输出ON控制信号以接通开关元件Q 1。 响应于来自控制器的ON控制信号，驱动器向开关元件Q1的栅极施加驱动信号，从而驱动开关元件Q 1。

公开(公告)号：US20070249145A1

公开(公告)日：2007-10-25

申请号：US11785167

申请日：2007-04-16

申请人： Masaru Nakamura

发明人： Masaru Nakamura

IPC分类号： H01L21/00

CPC分类号： H01L21/67092 ,  B23K26/40 ,  B23K2103/50 ,  H01L21/67132 ,  H01L21/6835 ,  H01L21/6836 ,  H01L21/78 ,  H01L24/27 ,  H01L24/29 ,  H01L24/83 ,  H01L2221/68327 ,  H01L2221/68336 ,  H01L2224/274 ,  H01L2224/2919 ,  H01L2224/83191 ,  H01L2224/8385 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01015 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/0665 ,  H01L2924/07802 ,  Y10S438/928 ,  H01L2924/0635 ,  H01L2924/00 ,  H01L2924/3512

摘要： A method of dividing an adhesive film for die bonding which is bonded to the rear surface of a wafer having devices in a plurality of areas sectioned by dividing lines formed in a lattice pattern on the front surface, into pieces corresponding to the devices, comprising the steps of putting the adhesive film side of the wafer on the front surface of a dicing tape mounted on an annular frame; cutting the wafer whose adhesive film side has been put on the dicing tape into devices along the dividing lines and cutting the adhesive film incompletely in such a way that an uncut portion is caused to remain; and expanding the dicing tape after the cutting step to divide the adhesive film into pieces corresponding to the devices.

摘要翻译： 一种将芯片接合用粘合膜分割成与在该表面上形成为格子状的分割线分割成多个区域的元件的晶片的背面相接合的片， 将晶片的粘合膜侧放置在安装在环形框架上的切割带的前表面上的步骤; 将其粘合膜侧已经被放置在切割带上的晶片切割成沿着分割线的装置，并且以使得保留未切割部分的方式不完全地切割粘合剂膜; 并且在切割步骤之后扩大切割胶带，以将粘合剂膜分成与装置相对应的片。

公开(公告)号：US20070190748A1

公开(公告)日：2007-08-16

申请号：US11705428

申请日：2007-02-13

申请人： Masaru Nakamura

发明人： Masaru Nakamura

IPC分类号： H01L21/00

CPC分类号： H01L21/78 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B28D5/0011 ,  B28D5/0052 ,  H01L21/67092 ,  H01L21/6836 ,  H01L2221/68327

摘要： A method of dividing a wafer which is partitioned by a plurality of first dividing lines extending in a predetermined direction and a plurality of second dividing, lines formed in a direction perpendicular to the plurality of first dividing lines, along the first dividing lines and the second dividing lines, comprising the step of forming a first continuous deteriorated layer in the inside of the wafer along the first dividing lines by applying a laser beam along the first dividing lines; the step of forming a second deteriorated layer in the inside of the wafer along the second dividing lines except for the intersections with the first dividing lines by applying a laser beam along the second dividing lines except for the intersections with the first dividing lines; the step of dividing the wafer along the first dividing lines where the first deteriorated layer has been formed by exerting external force to the wafer along the first dividing lines; and the step of dividing the wafer along the second dividing lines where the second deteriorated layer has been formed by exerting external force to the wafer along the second dividing lines.

摘要翻译： 一种分割由沿预定方向延伸的多个第一分割线分隔的晶片和沿与第一分割线垂直的方向形成的多个第二分割线的方法，沿着第一分割线和第二分割线 分割线，包括通过沿着第一分割线施加激光束沿着第一分割线在晶片内部形成第一连续劣化层的步骤; 除了与第一分割线的交点之外，通过沿除了与第一分割线的交点之外的第二分割线施加激光束，沿着第二分割线在晶片内部形成第二劣化层的步骤; 通过沿着第一分割线向晶片施加外力，沿着已经形成第一劣化层的第一分割线分割晶片的步骤; 以及通过沿着第二分割线向晶片施加外力，沿着已经形成第二劣化层的第二分割线分割晶片的步骤。

公开(公告)号：US20070127107A1

公开(公告)日：2007-06-07

申请号：US10575535

申请日：2004-11-19

申请人： Kenji Kitamura ,  Sunao Kurimura ,  Masaru Nakamura ,  Shunji Takekawa

发明人： Kenji Kitamura ,  Sunao Kurimura ,  Masaru Nakamura ,  Shunji Takekawa

IPC分类号： G02B26/00 ,  G02F1/00 ,  G02F1/01

CPC分类号： G02F1/37 ,  G02F2001/3507 ,  G02F2001/3548 ,  G02F2202/20

摘要： A wavelength conversion element having multi-gratings free from damage propagation and a light generating apparatus using it, and a wavelength conversion element having multi-gratings to make a thermal distribution centrosymmetric, and being free from damage propagation, are provided. The wavelength conversion element is realized by comprising a holder and plural prismatic ferroelectric single crystals disposed in the holder, wherein plural prismatic ferroelectric single crystals have at least five planes; the aspect ratios of planes perpendicular to respective longitudinal directions of the plural prismatic ferroelectric single crystals are virtually unity; and each of the plural prismatic ferroelectric single crystals has a domain inversion structure with a predetermined period in the direction perpendicular to the polarization direction thereof, and is arranged in a way that said direction perpendicular to the polarization direction is the same as those of the other crystals. In addition, the element is realized by selecting ferroelectric material from a group comprising lithium niobate, lithium tantalate, impurity-doped lithium niobate, and impurity-doped lithium tantalate, each with virtually stoichiometric composition, and processing it into the cylindrical ferroelectric single crystal with a virtually completely round cross-section.

摘要翻译： 提供了具有不受损伤传播的多光栅的波长转换元件和使用它的发光装置，以及具有多光栅以实现热分布中心对称，并且没有损伤传播的波长转换元件。 波长转换元件通过包括保持器和设置在保持器中的多个棱柱铁电单晶实现，其中多个棱柱铁电单晶具有至少五个平面; 垂直于多个棱柱铁电单晶的纵向方向的平面的纵横比实际上是一致的; 并且多个棱柱铁电单晶中的每一个具有在垂直于其偏振方向的方向上具有预定周期的畴反转结构，并且以与偏振方向垂直的方向与其他方向相同的方式 晶体。 此外，该元件通过从包含铌酸锂，钽酸锂，杂质掺杂的铌酸锂和杂质掺杂的钽酸锂的组中选择铁电材料来实现，每个具有实质上的化学计量组成，并且将其加工成圆柱形铁电单晶， 一个几乎完全圆形的横截面。

公开(公告)号：US20070076449A1

公开(公告)日：2007-04-05

申请号：US11528542

申请日：2006-09-28

申请人： Masaru Nakamura

发明人： Masaru Nakamura

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H03K17/165 ,  H03K17/6872

摘要： A switching power source apparatus has a switching element Q1. Between terminals of the switching element Q1, there is parasitic capacitance (C1, C2). A voltage V4 of parasitic oscillation appears at a gate of the switching element Q1 after a flyback period. A voltage detector detects a drop in the voltage V4 and outputs a detection signal V6. The detection signal V6 is delayed by a timer, which outputs an ON start signal synchronized with timing T at which the voltage V4 reaches a bottom level. In response to the ON start signal from the timer, a controller outputs an ON control signal to turn on the switching element Q1. In response to the ON control signal from the controller, a driver applies a drive signal to the gate of the switching element Q1, thereby driving the switching element Q1.

摘要翻译： 开关电源装置具有开关元件Q 1。 在开关元件Q1的端子之间，存在寄生电容（C 1，C 2）。 在回扫时段之后，在开关元件Q1的栅极处出现寄生振荡的电压V 4。 电压检测器检测电压V 4的下降并输出检测信号V 6。 检测信号V 6由定时器延迟，该定时器输出与电压V 4达到底部电平的定时T同步的ON启动信号。 响应于来自定时器的ON启动信号，控制器输出ON控制信号以接通开关元件Q 1。 响应于来自控制器的ON控制信号，驱动器向开关元件Q1的栅极施加驱动信号，从而驱动开关元件Q 1。

公开(公告)号：US20070053054A1

公开(公告)日：2007-03-08

申请号：US10575271

申请日：2004-11-10

申请人： Kenji Kitamura ,  Sunao Kurimura ,  Masaru Nakamura ,  Shunji Takekawa ,  Kazuya Terabe ,  Shunichi Hishida ,  Tamaki Shimura

发明人： Kenji Kitamura ,  Sunao Kurimura ,  Masaru Nakamura ,  Shunji Takekawa ,  Kazuya Terabe ,  Shunichi Hishida ,  Tamaki Shimura

IPC分类号： G02F1/35

CPC分类号： G02F1/3558 ,  G02F2202/20

摘要： A problem to be solved is to provide a method of forming domain inverted regions of short period in a ferroelectric single crystal in a controllable time period of application of voltage and an optical wavelength conversion element using the same. A solving means of it solves the problem by forming (i) a control layer having a larger defect density Dcont1 than the defect density Dferro of a ferroelectric single crystal (Dferro

摘要翻译： 要解决的问题是提供一种在施加电压的可控时间内在铁电单晶中形成短周期的畴反转区域的方法和使用其的光波长转换元件。 其解决方法通过形成（i）具有比铁电单晶（D）的缺陷密度D 更大的缺陷密度D 的控制层来解决该问题 或者形成（ii）具有比铁电单晶的格点的次序小的点阵次数的控制层， 垂直于铁电单晶中的铁电单晶的偏振方向的面。