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    • 1. 发明授权
    • Low temperature Bi-CMOS compatible process for MEMS RF resonators and filters
    • 用于MEMS RF谐振器和滤波器的低温Bi-CMOS兼容工艺
    • US07943412B2
    • 2011-05-17
    • US10316254
    • 2002-12-10
    • Leena Paivikki BuchwalterKevin Kok ChanTimothy Joseph DaltonChristopher Vincent JahnesJennifer Louise LundKevin Shawn PetrarcaJames Louis SpeidellJames Francis Ziegler
    • Leena Paivikki BuchwalterKevin Kok ChanTimothy Joseph DaltonChristopher Vincent JahnesJennifer Louise LundKevin Shawn PetrarcaJames Louis SpeidellJames Francis Ziegler
    • H01L21/00
    • B81C1/00246B81B2201/0271B81C1/0023B81C2203/0735H03H3/0072H03H9/2405
    • A method of formation of a microelectromechanical system (MEMS) resonator or filter which is compatible with integration with any analog, digital, or mixed-signal integrated circuit (IC) process, after or concurrently with the formation of the metal interconnect layers in those processes, by virtue of its materials of composition, processing steps, and temperature of fabrication is presented. The MEMS resonator or filter incorporates a lower metal level, which forms the electrodes of the MEMS resonator or filter, that may be shared with any or none of the existing metal interconnect levels on the IC. It further incorporates a resonating member that is comprised of at least one metal layer for electrical connection and electrostatic actuation, and at least one dielectric layer for structural purposes. The gap between the electrodes and the resonating member is created by the deposition and subsequent removal of a sacrificial layer comprised of a carbon-based material. The method of removal of the sacrificial material is by an oxygen plasma or an anneal in an oxygen containing ambient. A method of vacuum encapsulation of the MEMS resonator or filter is provided through means of a cavity containing the MEMS device, filled with additional sacrificial material, and sealed. Access vias are created through the membrane sealing the cavity; the sacrificial material is removed as stated previously, and the vias are re-sealed in a vacuum coating process.
    • 一种形成微机电系统(MEMS)谐振器或滤波器的方法,其与在任何模拟,数字或混合信号集成电路(IC)工艺中的集成兼容,或者与这些工艺中的金属互连层的形成同时 ,由于其组成材料,加工步骤和制造温度。 MEMS谐振器或滤波器包含形成MEMS谐振器或滤波器的电极的较低金属电平,其可与IC上的现有金属互连电平中的任何一个或任何一个共享。 它还包括谐振元件,该谐振元件由用于电连接和静电驱动的至少一个金属层和至少一个用于结构目的的电介质层组成。 通过沉积并随后去除由碳基材料构成的牺牲层来产生电极和谐振构件之间的间隙。 去除牺牲材料的方法是通过氧等离子体或在含氧环境中的退火。 MEMS谐振器或滤波器的真空封装方法是通过一个包含MEMS器件的空腔的装置提供的,其中填充有额外的牺牲材料并被密封。 通过隔膜密封腔形成通孔; 如先前所述去除牺牲材料,并且在真空涂覆工艺中重新密封通孔。
    • 4. 发明申请
    • Method and system for recovering password protected private data via a communication network without exposing the private data
    • 用于通过通信网络恢复密码保护的私有数据而不暴露私人数据的方法和系统
    • US20050223216A1
    • 2005-10-06
    • US10816756
    • 2004-04-02
    • Kok ChanDafina TonchevaBaskaran DharmarajanRahul NewaskarAdam Back
    • Kok ChanDafina TonchevaBaskaran DharmarajanRahul NewaskarAdam Back
    • H04L9/08H04L29/06H04L9/00
    • H04L63/0442H04L63/083Y10S707/99953Y10S707/99955
    • A system and method for securely roaming private data from a first client computer to a second client computer linked via a communication network. A user of the first client computer executes a home client application and designates private data for roaming. The home client application generates a first key in response to a password, and encrypts the designated private data as a function of the first key. The server receives and stores the encrypted private data. A user of the second computer executes a roaming client application and requests transfer of the encrypted private data from the server. The roaming client application generates the first key in response to the password, and decrypts encrypted private data transferred from the server to obtain the private data. The invention further provides users the ability to retrieve encrypted private from the server even when the user cannot remember the password associated with the first key. Also, the server has no knowledge of the private data nor the keys.
    • 一种用于将私有数据从第一客户端计算机安全地漫游到通过通信网络链接的第二客户端计算机的系统和方法。 第一客户端计算机的用户执行家庭客户端应用并指定用于漫游的专用数据。 家庭客户端应用程序响应于密码生成第一密钥,并且根据第一密钥加密指定的专用数据。 服务器接收并存储加密的私有数据。 第二计算机的用户执行漫游客户端应用,并请求从服务器传送加密的专用数据。 漫游客户端应用程序响应于密码生成第一个密钥,并解密从服务器传输的加密私有数据,以获得私有数据。 本发明进一步向用户提供即使当用户不能记住与第一密钥相关联的密码时从服务器检索加密的私有的能力。 此外,服务器不知道私人数据和密钥。
    • 5. 发明申请
    • Method and system for expansion of recurring calendar events
    • 扩展日历事件的方法和系统
    • US20050222891A1
    • 2005-10-06
    • US11135816
    • 2005-05-24
    • Kok ChanDennis Kiilerich
    • Kok ChanDennis Kiilerich
    • G06Q10/06G06Q10/10G06Q50/22G06F17/60
    • G06Q10/109G06Q10/06314G06Q50/22Y10S707/99931Y10S707/99942Y10S707/99953
    • A system and method for expanding recurring calendar events such that the retrieval of recurring calendar appointments is expedited. A recurring appointment is saved as a data structure including a recurrence pattern. When a recurring appointment is saved by a client that has sufficient processing and memory resources to perform the computations necessary to expand recurring appointments (i.e., a thick client), a background thread is notified. The background thread increases its priority to normal when idle processing capacity is available and calls a routine requesting calendar information for a defined time period. The routine causes the expansion of the data structure into the individual instances of the recurring appointment for a defined time period, and the individual instances are saved for later retrieval. A later query from a client without sufficient processing and memory resources to perform the calculations necessary to expand recurring appointments (i.e., a thin client), therefore, does not require that the expansion computations be performed contemporaneously.
    • 一种用于扩展循环日历事件的系统和方法,从而加快对定期日历约会的检索。 定期约会保存为包括重复模式的数据结构。 当具有足够的处理和内存资源的客户端保存定期约会以执行扩展循环约会所必需的计算(即厚客户端)时,通知后台线程。 当空闲处理能力可用时,后台线程将其优先级增加到正常,并调用在定义的时间段内请求日历信息的例程。 该例程导致在定义的时间段内将数据结构扩展到循环约会的各个实例中,并且保存各个实例供以后检索。 因此,没有足够的处理和内存资源来进行扩展循环约会所需的计算(即,瘦客户机)的后续查询不需要同时执行扩展计算。