Self-aligned, high resolution resonant dielectric lithography
    11.
    发明授权
    Self-aligned, high resolution resonant dielectric lithography 失效
    自对准,高分辨率谐振电介质光刻

    公开(公告)号:US5040020A

    公开(公告)日:1991-08-13

    申请号:US430290

    申请日:1989-11-02

    CPC classification number: H01L29/66856 H01L21/0274 H01L29/66946

    Abstract: Methods of fabricating electrical contacts on both sides of a thin membrane to form a millimeter wave, self-aligned, opposed gate-source transistor are disclosed. The transistor structure has a subhalf-micron gate, dual-drains placed symmetrically around both sides of the gate, and a source approximately half the length of the gate. The source is directly opposite, and centered under, the gate on the opposite surface of a semiconductor thin film. The gate electrode is fabricated on the first surface of the thin film using conventional single surface lithography, and is used as a conformed mask for the source lithography, thereby self-aligning the source to the gate. The source is formed by resonant dielectric lithography, wherein the gate side of the thin film is irradiated by collimated ultraviolet light to expose a negative resist on the source side with a resolution of less than a wavelength. Lateral diffraction effects affect the relative dimension of the source with respect to the gate. The electron-beam lithographic process utilizes electron scattering in the thin film for the same purpose. This new untraviolet lithography process avoids the need to handle the thin film until after source metallization has been completed.

    Abstract translation: 公开了在薄膜的两侧制造电接触以形成毫米波,自对准的相对的栅极 - 源极晶体管的方法。 晶体管结构具有一个亚微米栅极,对称地围绕栅极的两侧放置的双排水沟,源极大约为栅极长度的一半。 源极与半导体薄膜的相对表面上的栅极直接相对并且居中。 栅电极使用传统的单面光刻在薄膜的第一表面上制造,并且用作源光刻的一致掩模,从而将源自对准栅极。 源极通过共振电介质光刻形成,其中薄膜的栅极侧被准直的紫外线照射,以以小于波长的分辨率暴露出源侧的负光刻胶。 横向衍射效应影响源相对于栅极的相对尺寸。 电子束光刻工艺利用薄膜中的电子散射用于相同的目的。 这种新的无紫外光刻技术避免了在完成源极金属化之后处理薄膜的需要。

    BIAS AND SCALE-FACTOR ERROR MITIGATION IN A CORIOLIS VIBRATORY GYROSCOPE SYSETM
    12.
    发明申请
    BIAS AND SCALE-FACTOR ERROR MITIGATION IN A CORIOLIS VIBRATORY GYROSCOPE SYSETM 有权
    弯曲振动陀螺系统的偏差和尺度因子误差减小

    公开(公告)号:US20160231112A1

    公开(公告)日:2016-08-11

    申请号:US14618726

    申请日:2015-02-10

    Abstract: One embodiment of the invention includes a CVG system. A plurality of electrodes electrostatically force a resonator into a periodic motion based on a drive axis forcer signal applied to a first set of the plurality of electrodes and a sense axis force-rebalance signal applied to a second set of the plurality of electrodes, and provides a sense axis pickoff signal and a drive axis pickoff signal. A gyroscope controller generates the drive axis forcer signal based on the drive axis pickoff signal and calculates an angular rate of rotation about an input axis based on the sense axis force-rebalance signal. The gyroscope controller modulates a predetermined disturbance signal component onto the sense axis force-rebalance signal and to control a modulation phase of the sense axis force-rebalance signal based on detection of the predetermined disturbance signal component in the sense axis force-rebalance signal to substantially mitigate bias and scale-factor error.

    Abstract translation: 本发明的一个实施例包括CVG系统。 多个电极基于施加到多个电极的第一组的驱动轴推进信号和施加到多个电极的第二组的感测轴力 - 再平衡信号,将谐振器静电地强制为周期性运动,并且提供 感测轴检测信号和驱动轴检测信号。 陀螺仪控制器基于驱动轴线检测信号产生驱动轴forcer信号,并基于感测轴力 - 再平衡信号计算围绕输入轴的角速度。 陀螺仪控制器将预定的扰动信号分量调制到感测轴力 - 再平衡信号上,并且基于感测轴力 - 再平衡信号中的预定扰动信号分量的检测来控制感测轴力 - 再平衡信号的调制相位, 减轻偏差和比例因子误差。

    Real time error determination for inertial instruments
    14.
    发明授权
    Real time error determination for inertial instruments 有权
    惯性仪器的实时误差测定

    公开(公告)号:US07698082B2

    公开(公告)日:2010-04-13

    申请号:US12154104

    申请日:2008-05-20

    Applicant: Charles A. Lee

    Inventor: Charles A. Lee

    CPC classification number: G01C21/16 G01C25/005 G01P15/08 G01P21/00

    Abstract: First and second inertial instruments have parallel sense axes and produce respective first and second output signals using associated first and second scale factors. Bias errors are estimated using the change in state of sign of the first and second scale factors. A substitute scale factor is determined to be an equivalent of the second scale factor and is based on the first scale factor and a difference between the first and second scale factors. Errors in the second scale factor are calculated based on the first scale factor and the substitute scale factor where a sign of one of first and second scale factors changes going from the first time interval to the succeeding time intervals. First and second corrected output signals are generated based on the respective first and second output signals and correction of the second scale factor error.

    Abstract translation: 第一和第二惯性仪器具有并行感测轴,并使用相关联的第一和第二比例因子产生相应的第一和第二输出信号。 使用第一和第二比例因子的符号状态的变化来估计偏差。 替代比例因子被确定为等于第二比例因子,并且基于第一比例因子和第一和第二比例因子之间的差。 基于第一比例因子和替代比例因子计算第二比例因子中的误差,其中第一和第二比例因子之一的符号从第一时间间隔变化到后续时间间隔。 基于相应的第一和第二输出信号产生第一和第二校正输出信号并校正第二比例因子误差。

    Forming fabric for use in producing a high bulk paper web
    15.
    发明授权
    Forming fabric for use in producing a high bulk paper web 失效
    用于生产高松散纸幅的成形织物

    公开(公告)号:US5211815A

    公开(公告)日:1993-05-18

    申请号:US855328

    申请日:1992-03-20

    CPC classification number: D21H27/02 D21F11/006 D21F11/14 Y10S162/903

    Abstract: There is disclosed a novel woven multiplex forming fabric defining pockets in one surface thereof into which cellulosic fibers in an aqueous medium are flowed under conditions of flow and rate of water removal that establish high shear fluid flow and result in the orientation of fibers and/or fiber segments at an angle with respect to the plane of the forming fabric and their capture in the pockets and in the areas of the fabric adjacent the pockets.

    Abstract translation: 公开了一种新颖的织造多重成形织物,其在其一个表面中限定了凹穴,水性介质中的纤维素纤维在其流动和脱水速率的条件下流动,其形成高剪切流体流动并导致纤维和/或 纤维段相对于成形织物的平面成一定角度,并且它们在口袋中以及与织物相邻的区域中捕获。

    Method and apparatus for manufacturing surgical sponges
    16.
    发明授权
    Method and apparatus for manufacturing surgical sponges 失效
    用于制造手术海绵的方法和装置

    公开(公告)号:US5049219A

    公开(公告)日:1991-09-17

    申请号:US489893

    申请日:1990-03-06

    Abstract: A method and apparatus are described for the manufacture of surgical sponges defined by a sponge body with at least a segment of a string, preferably containing a material opaque to x-rays, joined to the sponge body. The apparatus provides for the manufacture of the surgical sponges in an automatic manner and continuous manner by feeding a length of the string from a string supply and an end portion of sponge from a supply of sponge in directions substantially ninety-degrees to one another to an area of intersection area where a segment of the string overlies the sponge at a selected distance from the end thereof remote to the supply of sponge. The string segment is joined to the sponge, preferably by an ultrasonic welding mechanism. The sponge end containing the joined string is then severed at a preselected location depending upon the width of sponge body desired. The cutting mechanism used to sever the sponge and the welding mechanism are moveable as a single unit to alternately place the welding mechanism over the segment of the string and cutting mechanism at the preselected location on the sponge. The sponge bodies serially connected by the string at spaced apart locations are separated into discrete surgical sponges by sequentially displacing the string-connected sponge bodies to a string and sponge cutting arrangement where the string is first cut at an edge of each sponge and then an excess of the sponge adjacent this edge of each sponge is severed.

    Abstract translation: 描述了用于制造海绵体的方法和装置,所述海绵体具有连接到海绵体上的至少一段线,优选地包含不透射X射线的材料。 该装置以自动方式和连续的方式提供手术海绵的制造,通过将弦的长度从弦的供应和海绵的末端部分沿着彼此大致九十度的方向从海绵的供应供给到 交叉区域,其中弦的一段从海绵的远端到海绵的供应距离选定的距离处覆盖海绵。 弦线段优选地通过超声波焊接机构连接到海绵上。 然后,根据所需的海绵体的宽度,将包含连接的线的海绵末端在预选位置切断。 用于切割海绵和焊接机构的切割机构可以作为单个单元移动,以将焊接机构交替地放置在海绵的预选位置处的弦线和切割机构的段上。 通过将串连接在间隔开的位置处的海绵体通过将弦连接的海绵体顺序地移位到弦和海绵切割装置中而被分离成离散的手术海绵,其中弦首先在每个海绵的边缘被切割,然后是过量的 邻近海绵边缘的海绵被切断。

    Opposed gate-source transistor
    17.
    发明授权
    Opposed gate-source transistor 失效
    栅极源极晶体管

    公开(公告)号:US4951099A

    公开(公告)日:1990-08-21

    申请号:US144452

    申请日:1988-01-15

    CPC classification number: H01L29/42316 H01L29/0891 H01L29/41775 H01L29/812

    Abstract: A field-effect transistor (FET) and a corresponding method for its fabrication, the transistor having a source and a gate located at opposite faces of an active channel region formed in a substrate, the source being substantially shorter in effective length than the gate and located symmetrically with respect to the gate. The transistor also has two drains, located one at each end of the channel region, and charge carriers flow from the source to the drains in two paths, under control of the same gate. Electrical contact with the source is made from beneath the substrate, while contact with the gate and drains is made from above. The resulting device has a large incremental transconductance and relatively small parasitic impedances, and therefore can operate at much higher frequencies than conventional FET's.

    Abstract translation: 一种场效应晶体管(FET)及其制造方法,该晶体管具有源极和栅极,位于形成于衬底中的有源沟道区的相对面处,该源的有效长度大致小于栅极, 相对于门对称地定位。 晶体管还具有两个漏极,位于沟道区的每一端一处,并且电荷载体在相同栅极的控制下以两条路径从源极流到排水沟。 与源极电气接触是从基底下方形成的,而与栅极和漏极接触则由上方制成。 所得到的器件具有大的增量跨导和相对小的寄生阻抗,因此可以比传统FET的频率高得多的频率工作。

    Broadband high power IMPATT amplifier circuit
    18.
    发明授权
    Broadband high power IMPATT amplifier circuit 失效
    宽带大功率IMPATT放大器电路

    公开(公告)号:US4623849A

    公开(公告)日:1986-11-18

    申请号:US719087

    申请日:1985-04-02

    CPC classification number: H03F3/608

    Abstract: An IMPATT diode mounted in a double-tuned resonant cavity to exhibit stability by suppressing subharmonic frequencies is disclosed. A foreshortened quarter wavelength section is connected to the diode to form an equivalent parallel resonant circuit at one end thereof. At the other end of the quarter wavelength section is an odd-quarter wavelength tuning slug which provides a section which exhibits a second, series equivalent resonant circuit. To provide increased stability at subharmonic frequencies, a half-wavelength tuning slug is disposed adjacent to the odd-quarter wavelength section. The half wave tuning slug is virtually transparent at the operating frequency, but is a quarter-wavelength at the first subharmonic, and thus exhibits a high resistance at the subharmonic frequency.

    Abstract translation: 公开了一种安装在双调谐谐振腔中的IMPATT二极管,以通过抑制次谐波频率来表现出稳定性。 缩短的四分之一波长部分连接到二极管,以在其一端形成等效的并联谐振电路。 在四分之一波长段的另一端是奇数四分之一波长调谐段,其提供呈现第二串联等效谐振电路的部分。 为了在次谐波频率下提供更高的稳定性,半波长调谐块被布置为与奇数四分之一波长段相邻。 半波调谐段在工作频率下实际上是透明的,但是在第一次谐波处是四分之一波长,因此在次谐波频率下表现出高电阻。

    Pulp molding system including a flexible mold carrying belt and an
elastic pressing belt
    19.
    发明授权
    Pulp molding system including a flexible mold carrying belt and an elastic pressing belt 失效
    纸浆成型系统,包括柔性模具运输带和弹性加压带

    公开(公告)号:US3990940A

    公开(公告)日:1976-11-09

    申请号:US451052

    申请日:1974-03-14

    CPC classification number: D21J7/00 D21F1/523

    Abstract: A method and apparatus for use in the manufacture of improved molded pulp products are disclosed wherein foraminous molds disposed over openings in a liquid impervious belt are moved beneath the surface of a flowing furnish and suction is applied to draw liquid through the molds and deposit a layer of pulp on each mold. Thereafter, the pulp deposit on each mold is simultaneously subjected to a generally uniform pressing with a second belt and suction which forms a smooth exposed surface on the pulp deposit and removes a portion of the liquid therein.

    Abstract translation: 公开了一种用于制造改进的模制纸浆产品的方法和装置,其中设置在不透液体带的开口上的多孔模具在流动配料的表面下方移动,并且抽吸被抽吸以将液体通过模具并沉积一层 的纸浆在每个模具上。 此后,每个模具上的纸浆沉积物同时经受第二带和抽吸的大致均匀的压制,其在纸浆沉积物上形成光滑的暴露表面,并除去其中的一部分液体。

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