专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07414562B2 Analog-to-digital conversion using asynchronous current-mode cyclic comparison 失效
公开(公告)号：US07414562B2
公开(公告)日：2008-08-19
申请号：US11492245
申请日：2006-07-25
申请人： Chi Wah Kok , Wing Shan Tam
发明人： Chi Wah Kok , Wing Shan Tam
IPC分类号： H03M1/12
CPC分类号： H03M1/125 , H03M1/447
摘要： An asynchronous cyclic current-mode analog-to-digital converter (ADC) is disclosed. The ADC comprises a plurality of sub-ADCs cascading from the first stage to the last stage, each sub-ADC comprising a current-mode ADC having a digital output, an analog current input, a reference current input and an analog current output. The analog current input of each stage, except the first stage, is operatively connected to the analog current output of the immediately preceding stage. The plurality of sub-ADCs are configured to operate without synchronization with each other.

2. 发明申请

US20110285455A1 EXPONENTIAL VOLTAGE CONVERSION SWITCHED CAPACITOR CHARGE PUMP 失效
标题翻译：指定电压转换开关电容充电泵
公开(公告)号：US20110285455A1
公开(公告)日：2011-11-24
申请号：US12969192
申请日：2010-12-15
申请人： Chi Wah Kok , Oi Ying Wong , Wing Shan Tam
发明人： Chi Wah Kok , Oi Ying Wong , Wing Shan Tam
IPC分类号： G05F1/10 , H05K13/00
CPC分类号： H02M3/073 , H02M2003/077 , Y10T29/49002
摘要： Described herein are switched capacitor charge pump designs for a 2n× voltage converter. The 2n× voltage converter is constructed by cascading n units of substantially identical unit cells, which are respectively composed of cross-coupled single cell doubler circuits. Dynamic inverters are used to completely activate and deactivate the power switches in the respective unit cells to increase area efficiency. The charge pump designs described herein are implemented with standard high-voltage CMOS processes without requiring MOSFET transistors with different threshold voltages, giving the charge pump a regular structure that simplifies design and layout and reduces production costs. In addition, techniques for constructing a charge pump according to the designs provided herein are described.
摘要翻译：这里描述了用于2n×电压转换器的开关电容器电荷泵设计。 2n×电压转换器通过级联n个基本相同的单元电池构成，它们分别由交叉耦合的单电池倍增电路组成。动态逆变器用于完全激活和停用各个单元电池中的电源开关，以提高面积效率。本文所述的电荷泵设计采用标准高压CMOS工艺实现，而不需要具有不同阈值电压的MOSFET晶体管，从而使电荷泵具有规则的结构，从而简化了设计和布局，降低了生产成本。此外，描述了根据本文提供的设计构建电荷泵的技术。

3. 发明授权

US07602429B2 Paired differential active pixel sensor 失效
标题翻译：配对差分有源像素传感器
公开(公告)号：US07602429B2
公开(公告)日：2009-10-13
申请号：US11346494
申请日：2006-02-01
申请人： Chi Wah Kok
发明人： Chi Wah Kok
IPC分类号： H04N3/14
CPC分类号： H04N5/37457
摘要： Imaging devices—as well as methods for operating such devices—that include active pixel sensors and a transistor that, when paired with the transistor in an adjacent pixel, will form a differential input pair of an operational amplifier. At least some portion of the operational amplifier circuit is located off the active pixel sensor, and shared by the rows or columns of the active pixel sensor array.
摘要翻译：成像装置以及用于操作这种装置的方法 - 包括有源像素传感器和当与相邻像素中的晶体管配对时将形成运算放大器的差分输入对的晶体管。运算放大器电路的至少一部分位于有源像素传感器之外，并且由有源像素传感器阵列的行或列共享。

4. 发明申请

US20080023829A1 Substrate and process for semiconductor flip chip package 有权
标题翻译：半导体倒装芯片封装的衬底和工艺
公开(公告)号：US20080023829A1
公开(公告)日：2008-01-31
申请号：US11496111
申请日：2006-07-31
申请人： Chi Wah Kok , Yee Ching Tam
发明人： Chi Wah Kok , Yee Ching Tam
IPC分类号： H01L23/48
CPC分类号： H05K3/3436 , H01L23/142 , H01L23/49822 , H01L24/13 , H01L24/16 , H01L24/81 , H01L24/83 , H01L24/90 , H01L2224/13099 , H01L2224/1403 , H01L2224/16237 , H01L2224/81136 , H01L2224/81191 , H01L2224/8121 , H01L2224/81815 , H01L2224/838 , H01L2924/00011 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01027 , H01L2924/01029 , H01L2924/01033 , H01L2924/01046 , H01L2924/01047 , H01L2924/0105 , H01L2924/01067 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/01087 , H01L2924/014 , H01L2924/351 , H05K3/3452 , H05K3/3484 , H05K2201/09427 , H05K2201/09472 , H05K2201/09509 , Y02P70/613 , H01L2924/3512 , H01L2924/00 , H01L2224/0401
摘要： A semiconductor package structure for flip chip package includes at least a patterned circuit layer and an insulating layer alternately stacking up each other. The patterned layer includes a plurality of bump pads, and the insulating layer includes a plurality of etching holes. The etching holes and the bump pads are aligned, such that the bump pads are exposed through the etching holes. A plurality of bumps is disposed on the active surface of the chip, which can be obtained by stud bumping. The etching holes are filled with solder paste, and the bumps of the chips penetrate into the solder filled etching holes. Vibration obtained by mechanical equipment, or ultrasonic equipment can be applied to assist the alignment of the bumps to the corresponding bump pads. A reflow process is applied to collapse the solder paste that fills the etching holes to form electrical connection between the bumps and bump pads.
摘要翻译：用于倒装芯片封装的半导体封装结构至少包括图案化电路层和彼此交替堆叠的绝缘层。图案化层包括多个凸点焊盘，绝缘层包括多个蚀刻孔。蚀刻孔和凸块焊盘对准，使得凸块焊盘通过蚀刻孔露出。在芯片的有效表面上设置多个凸块，这可以通过螺柱凸起来获得。蚀刻孔填充有焊膏，并且芯片的凸块渗透到焊料填充的蚀刻孔中。可以通过机械设备或超声波设备获得的振动来帮助凸块对准相应的凸块。应用回流工艺来塌陷填充蚀刻孔的焊膏，以在凸块和凸块之间形成电连接。

5. 发明授权

US08362824B2 Exponential voltage conversion switched capacitor charge pump 失效
标题翻译：指数电压转换开关电容器电荷泵
公开(公告)号：US08362824B2
公开(公告)日：2013-01-29
申请号：US12969192
申请日：2010-12-15
申请人： Oi Ying Wong , Wing Shan Tam , Chi Wah Kok
发明人： Oi Ying Wong , Wing Shan Tam , Chi Wah Kok
IPC分类号： G05F1/10
CPC分类号： H02M3/073 , H02M2003/077 , Y10T29/49002
摘要： Described herein are switched capacitor charge pump designs for a 2n× voltage converter. The 2n× voltage converter is constructed by cascading n units of substantially identical unit cells, which are respectively composed of cross-coupled single cell doubler circuits. Dynamic inverters are used to completely activate and deactivate the power switches in the respective unit cells to increase area efficiency. The charge pump designs described herein are implemented with standard high-voltage CMOS processes without requiring MOSFET transistors with different threshold voltages, giving the charge pump a regular structure that simplifies design and layout and reduces production costs. In addition, techniques for constructing a charge pump according to the designs provided herein are described.
摘要翻译：这里描述了用于2n×电压转换器的开关电容器电荷泵设计。 2n×电压转换器通过级联n个基本相同的单元电池构成，它们分别由交叉耦合的单电池倍增电路组成。动态逆变器用于完全激活和停用各个单元电池中的电源开关，以提高面积效率。本文所述的电荷泵设计采用标准高压CMOS工艺实现，而不需要具有不同阈值电压的MOSFET晶体管，从而使电荷泵具有规则的结构，从而简化了设计和布局，降低了生产成本。此外，描述了根据本文提供的设计构建电荷泵的技术。

6. 发明授权

US07652374B2 Substrate and process for semiconductor flip chip package 有权
标题翻译：半导体倒装芯片封装的衬底和工艺
公开(公告)号：US07652374B2
公开(公告)日：2010-01-26
申请号：US11496111
申请日：2006-07-31
申请人： Chi Wah Kok , Yee Ching Tam
发明人： Chi Wah Kok , Yee Ching Tam
IPC分类号： H01L23/48
CPC分类号： H05K3/3436 , H01L23/142 , H01L23/49822 , H01L24/13 , H01L24/16 , H01L24/81 , H01L24/83 , H01L24/90 , H01L2224/13099 , H01L2224/1403 , H01L2224/16237 , H01L2224/81136 , H01L2224/81191 , H01L2224/8121 , H01L2224/81815 , H01L2224/838 , H01L2924/00011 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01027 , H01L2924/01029 , H01L2924/01033 , H01L2924/01046 , H01L2924/01047 , H01L2924/0105 , H01L2924/01067 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/01087 , H01L2924/014 , H01L2924/351 , H05K3/3452 , H05K3/3484 , H05K2201/09427 , H05K2201/09472 , H05K2201/09509 , Y02P70/613 , H01L2924/3512 , H01L2924/00 , H01L2224/0401
摘要： A semiconductor package structure for flip chip package includes at least a patterned circuit layer and an insulating layer alternately stacking up each other. The patterned layer includes a plurality of bump pads, and the insulating layer includes a plurality of etching holes. The etching holes and the bump pads are aligned, such that the bump pads are exposed through the etching holes. A plurality of bumps is disposed on the active surface of the chip, which can be obtained by stud bumping. The etching holes are filled with solder paste, and the bumps of the chips penetrate into the solder filled etching holes. Vibration obtained by mechanical equipment, or ultrasonic equipment can be applied to assist the alignment of the bumps to the corresponding bump pads. A reflow process is applied to collapse the solder paste that fills the etching holes to form electrical connection between the bumps and bump pads.
摘要翻译：用于倒装芯片封装的半导体封装结构至少包括图案化电路层和彼此交替堆叠的绝缘层。图案化层包括多个凸点焊盘，绝缘层包括多个蚀刻孔。蚀刻孔和凸块焊盘对准，使得凸块焊盘通过蚀刻孔露出。在芯片的有效表面上设置多个凸块，这可以通过螺柱凸起来获得。蚀刻孔填充有焊膏，并且芯片的凸块渗透到焊料填充的蚀刻孔中。可以通过机械设备或超声波设备获得的振动来帮助凸块对准相应的凸块。应用回流工艺来塌陷填充蚀刻孔的焊膏，以在凸块和凸块之间形成电连接。

7. 发明授权

US08547168B2 High current drive switched capacitor charge pump 失效
标题翻译：大电流驱动开关电容器电荷泵
公开(公告)号：US08547168B2
公开(公告)日：2013-10-01
申请号：US13273675
申请日：2011-10-14
申请人： Chi Wah Kok , Oi Ying Wong , Wing Shan Tam
发明人： Chi Wah Kok , Oi Ying Wong , Wing Shan Tam
IPC分类号： G05F1/10
CPC分类号： H02M3/07 , H02M2003/076
摘要： Systems, methods, and devices that employ a dynamic gate boost component (DGBC) to generate a desired boosted gate voltage to facilitate controlling an enhanced charge pump are presented. An enhanced charge pump can comprise a desired number of charge transfer switches (CTSs) and a desired number of DGBCs, wherein a DGBC can apply a desired boosted gate voltage to the gate of an associated CTS to control switching of the CTS. An auxiliary gate boost component (AGBC) of one circuit path can apply a desired boosted gate voltage to a CTS of another circuit path to control switching of that CTS. The AGBC and DGBC can operate to facilitate maintaining the overdrive voltages of all of the CTSs in the enhanced charge pump so that the overdrive voltages are essentially unchanged under various loading current conditions. Multiple enhanced charge pumps can be cascaded to produce a higher output voltage.
摘要翻译：提出了采用动态栅极升压组件（DGBC）产生所需升压栅极电压以便于控制增强型电荷泵的系统，方法和器件。增强的电荷泵可以包括所需数量的电荷转移开关（CTS）和期望数量的DGBC，其中DGBC可以将所需的升压栅极电压施加到相关CTS的栅极以控制CTS的切换。一个电路路径的辅助栅极升压组件（AGBC）可以将期望的升压栅极电压施加到另一个电路路径的CTS，以控制该CTS的切换。 AGBC和DGBC可以操作以便于维持增强型电荷泵中所有CTS的过驱动电压，使得过载驱动电压在各种负载电流条件下基本上不变。多个增强型电荷泵可以级联以产生更高的输出电压。

8. 发明授权

US08339184B2 Gate voltage boosting element for charge pump 失效
标题翻译：门电压增压元件
公开(公告)号：US08339184B2
公开(公告)日：2012-12-25
申请号：US12915767
申请日：2010-10-29
申请人： Chi Wah Kok , Oi Ying Wong , Wing Shan Tam
发明人： Chi Wah Kok , Oi Ying Wong , Wing Shan Tam
IPC分类号： G05F3/24 , H02M3/18
CPC分类号： H03K17/687 , H02M3/073 , H02M2003/076 , H03K2217/0054
摘要： Systems, methods, and devices that generate a desired boosted gate voltage to facilitate controlling a charge pump are presented. A multi-phase charge pump (e.g., two-phase CMOS charge pump) can comprise a desired number of switch cells (SCs), wherein each SC can include a gate boost switch control component, which employs two transistors (without the need for external circuitry), and generates a desired gate voltage, based at least in part on a desired clock signal, wherein the desired gate voltage is applied to a charge transfer switch, Mc, of the SC to facilitate transferring a voltage across the Mc to a node on the other side of the Mc, in each stage of the charge pump, wherein the SCs are associated with a desired number of flying capacitors to facilitate increasing the input voltage to a desired output voltage.
摘要翻译：提出了产生期望的升压栅极电压以便于控制电荷泵的系统，方法和装置。多相电荷泵（例如，两相CMOS电荷泵）可以包括所需数量的开关单元（SC），其中每个SC可以包括栅极升压开关控制元件，其采用两个晶体管（不需要外部电路），并且至少部分地基于期望的时钟信号产生期望的栅极电压，其中期望的栅极电压被施加到SC的电荷转移开关Mc，以便于将跨越Mc的电压传送到节点在Mc的另一侧，在电荷泵的每个阶段中，其中SC与期望数量的飞行电容器相关联，以便于将输入电压增加到期望的输出电压。

9. 发明授权

US07969493B2 Matching free dynamic digital pixel sensor 有权
标题翻译：匹配免费的动态数字像素传感器
公开(公告)号：US07969493B2
公开(公告)日：2011-06-28
申请号：US11385313
申请日：2006-03-20
申请人： Chi Wah Kok
发明人： Chi Wah Kok
IPC分类号： H04N3/14
CPC分类号： H04N5/37457 , H04N5/37455
摘要： An active pixel sensor includes a photosensitive device and a dynamic comparator that when coupled with a voltage ramp will form a digital pixel sensor with pulse width modulated digital output. A number of switches are included in the digital pixel sensor to configure the input of the dynamic comparator to couple with the photosensitive device or the voltage ramp such that the dynamic comparator is free from input transistor mismatch problem, as both input use the same input transistor. A cascade of dynamic comparator is disclosed in this invention, such as to improve the sensitivity and conversion speed of the digital pixel sensor. There are a number of switches that connect and isolate the digital pixel sensor from the bit line, which is shared by a plurality of digital pixel sensors in the sensor array. Photosensitive devices in close proximity can share the dynamic comparator by a number of selection switches, such that each photosensitive device can be read out in a time shared manner. Such configuration reduce the average number of transistors in each digital pixel sensor and thus the total silicon area of the sensor array, and hence the cost of production of the image sensor.
摘要翻译：有源像素传感器包括光敏器件和动态比较器，当与电压斜坡耦合时将形成具有脉宽调制数字输出的数字像素传感器。数字像素传感器中包含许多开关，以配置动态比较器的输入以与感光器件或电压斜坡耦合，使得动态比较器不受输入晶体管失配问题的影响，因为两个输入使用相同的输入晶体管。在本发明中公开了一种级联的动态比较器，例如提高数字像素传感器的灵敏度和转换速度。有许多开关将数字像素传感器与传感器阵列中的多个数字像素传感器共享的位线连接和隔离。接近的感光装置可以通过多个选择开关共享动态比较器，使得可以以时间共享的方式读出每个感光装置。这种配置减少了每个数字像素传感器中的晶体管的平均数量，并因此降低了传感器阵列的总硅面积，并因此降低了图像传感器的生产成本。

10. 发明授权

US07405606B2 D flip-flop 失效
标题翻译： D触发器
公开(公告)号：US07405606B2
公开(公告)日：2008-07-29
申请号：US11397880
申请日：2006-04-03
申请人： Chi Wah Kok , Yee Ching Tam
发明人： Chi Wah Kok , Yee Ching Tam
IPC分类号： H03K3/289
CPC分类号： H03K3/012 , H03K3/356043 , H03K3/356156
摘要： A D flip-flop with a reduced power product or reduced clock line capacitance is disclosed. The flip-flop includes a half-static slave stage or a master stage with clock gating by the input and output. The half-static slave stage an output inverter and a feedback element consisting of a single switching transistor having a gate connected to the output of the flip-flop and the input of the inverter as its load. The clock gating circuit, which may comprise an XNOR gate, reduces the frequency of switching events by permitting clock pulses to pass into the master or slave stage only when the input and output of the flip-flop are at the same logical state.
摘要翻译：公开了具有降低的功率乘积或降低的时钟线电容的D触发器。触发器包括半静态从站或主站，通过输入和输出具有时钟门控。半静态从动级输出反相器和由单个开关晶体管组成的反馈元件，该开关晶体管具有连接到触发器的输出端的栅极和作为其负载的反相器的输入端。可以包括XNOR门的时钟门控电路通过仅当触发器的输入和输出处于相同逻辑状态时才允许时钟脉冲进入主器件级或从器级，从而降低开关事件的频率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式