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1. 发明申请

WO2007108983A3 STRAINED SILICON WITH ELASTIC EDGE RELAXATION 审中-公开
标题翻译：具有弹性边缘松弛的应变硅
公开(公告)号：WO2007108983A3
公开(公告)日：2007-12-06
申请号：PCT/US2007006171
申请日：2007-03-12
申请人： ACORN TECH INC , CLIFTON PAUL A
发明人： CLIFTON PAUL A
IPC分类号： H01L29/10 , H01L21/336 , H01L29/165
CPC分类号： H01L29/7846 , H01L29/1054 , H01L29/165 , H01L29/66636
摘要： A thin blanket epitaxial layer of SiGe is grown on a silicon substrate to have a biaxial compressive stress in the growth plane. A thin epitaxial layer of silicon is deposited on the SiGe layer, with the SiGe layer having a thickness less than its critical thicknesses. Shallow trenches are subsequently fabricated through the epitaxial layers, so that the strain energy is redistributed such that the compressive strain in the SiGe layer is partially relaxed elastically and a degree of tensile strain is induced to the neighboring layers of silicon. Because this process for inducing tensile strain in a silicon over-layer is elastic in nature, the desired strain may be achieved without formation of misfit dislocations.
摘要翻译：在硅衬底上生长SiGe的薄覆层外延层，以在生长平面中具有双轴压应力。硅的薄外延层沉积在SiGe层上，SiGe层的厚度小于其临界厚度。随后通过外延层制造浅沟槽，使得应变能被重新分布，使得SiGe层中的压缩应变被弹性地部分松弛，并且一定程度的拉伸应变被诱导到相邻的硅层。因为在硅层中诱导拉伸应变的这种方法本质上是弹性的，所以可以实现期望的应变而不形成失配位错。

2. 发明申请

WO2006026339A3 PROCESS FOR FABRICATING A SELF-ALIGNED DEPOSITED SOURCE/DRAIN INSULATED GATE FIELD-EFFECT TRANSISTOR 审中-公开
标题翻译：制造自对准沉积源极/漏极绝缘栅场效应晶体管的工艺
公开(公告)号：WO2006026339A3
公开(公告)日：2006-05-04
申请号：PCT/US2005030209
申请日：2005-08-24
申请人： ACORN TECH INC , GRUPP DANIEL E , CONNELLY DANIEL J , CLIFTON PAUL A , FAULKNER CARL A
发明人： GRUPP DANIEL E , CONNELLY DANIEL J , CLIFTON PAUL A , FAULKNER CARL A
IPC分类号： H01L21/336 , H01L29/786
CPC分类号： H01L29/785 , H01L21/28079 , H01L21/7624 , H01L29/0895 , H01L29/41791 , H01L29/458 , H01L29/495 , H01L29/66545 , H01L29/66553 , H01L29/66583 , H01L29/66636 , H01L29/66772 , H01L29/66795 , H01L29/78 , H01L29/78618 , H01L2029/7858
摘要： Processes for forming self-aligned, deposited source/drain, insulated gate, transistors and, in particular, FETs. By depositing a source/drain in a recess such that it remains only in the recess, the source/drain can be formed self-aligned to a gate and/or a channel of such a device. For example, in one such process a gate structure of a transistor may be formed and, in a material surrounding the gate structure, a recess created so as to be aligned to an edge of the gate structure. Subsequently, a source/drain conducting material may be deposited in the recess. Such a source/drain conducting material may be deposited, in some cases, as layers, with one or more such layers being planarized following its deposition. In this way, the conducting material is kept within the boundaries of the recess.
摘要翻译：用于形成自对准，沉积的源极/漏极，绝缘栅极，晶体管以及特别是FET的工艺。通过将源极/漏极沉积在凹陷中使得其仅保留在凹陷中，源极/漏极可以与这种器件的栅极和/或沟道自对准地形成。例如，在一个这样的工艺中，可以形成晶体管的栅极结构，并且在围绕栅极结构的材料中形成凹槽，以便与栅极结构的边缘对齐。随后，源/漏导电材料可以沉积在凹槽中。这种源极/漏极导电材料在一些情况下可以被沉积为层，其中一个或多个这样的层在其沉积之后被平坦化。以这种方式，导电材料保持在凹槽的边界内。

3. 发明申请

WO0145092A9 DATA STORAGE SYSTEM USING SYNCHRONIZATION SIGNALS INCORPORATING SERVO INFORMATION 审中-公开
标题翻译：使用同步信号的数据存储系统实现服务信息
公开(公告)号：WO0145092A9
公开(公告)日：2002-06-06
申请号：PCT/US0042748
申请日：2000-12-12
申请人： ACORN TECH INC
发明人： GAINES R STOCKTON , DESPAIN ALVIN M
IPC分类号： G11B5/596 , G11B21/10 , G11B19/28
CPC分类号： G11B5/59611
摘要： Position control for a read head with respect to a track on a storage disk is improved using a synchronization pattern that includes servo information as well as synchronization signals used to set a clock for recovering data from a disk. A disk stores data along substantially concentric tracks positioned at varying radii on the disk's data storage surface, with the data organized into data blocks. Synchronization patterns are provided at the start of each data block from which a read head can derive a synchronization signal useful for reading data from the data block. This synchronization signal is input to a phase locked oscillator to train a phase locked detector that recovers data signals stored in the data block. Servo information, suitable for identifying a misalignment between the read head and the track being read is also provided within the synchronization pattern. This may be accomplished by providing a conventional synchronization pattern modulated with a two dimensional servo pattern that includes information about the relative position of the read head with respect to a track. Conventional sector or wedge servo information for positioning the read head with respect to a track may be provided in addition to the servo data provided for each data storage block.
摘要翻译：使用包括伺服信息的同步模式以及用于设置用于从盘恢复数据的时钟的同步信号，改善了相对于存储盘上的轨道的读取头的位置控制。磁盘将数据沿着位于磁盘数据存储表面上变化的半径的基本上同心的轨道存储，数据被组织成数据块。在每个数据块的开始处提供同步模式，读取头可从该数据块导出用于从数据块读取数据的同步信号。该同步信号被输入到锁相振荡器以训练恢复存储在数据块中的数据信号的锁相检测器。也可以在同步模式内提供适合于识别读取头和被读取的轨道之间的未对准的伺服信息。这可以通过提供用二维伺服模式调制的常规同步模式来实现，其包括关于读取头相对于轨道的相对位置的信息。除了为每个数据存储块提供的伺服数据之外，还可以提供用于将读取头相对于轨道定位的常规扇区或楔形伺服信息。

4. 发明申请

WO0135176A2 SERVO CONTROL APPARATUS AND METHOD USING ABSOLUTE VALUE INPUT SIGNALS 审中-公开
标题翻译：伺服控制装置和使用绝对值输入信号的方法
公开(公告)号：WO0135176A2
公开(公告)日：2001-05-17
申请号：PCT/US0030670
申请日：2000-11-07
申请人： ACORN TECH INC
发明人： IOANNOU PETROS A , KOSMATOPOULOS ELIAS B , DESPAIN ALVIN M
IPC分类号： G05B13/02 , G05B13/04 , G05B19/19 , G05B21/02 , G11B5/55 , G11B5/596 , G11B21/02 , G11B21/08
CPC分类号： G11B21/022 , G05B13/026 , G05B13/04 , G05B13/048 , G05B19/19 , G05B2219/41369 , G11B5/5521 , G11B5/596 , G11B21/081
摘要： A servo control apparatus and method controls systems at least partially on the basis of an observable variable that has an absolute value functional relationship with the controlled variable and does not change sign for positive and negative variations from a nominal value. When applied to the positional control of an object, the control system observes a value of a position error signal and maps that signal to two different potentially correct displacement values. Two estimators within the control system are initiated, one using the positive displacement and the other using the negative displacement, and the two estimators each predict the future position of the object and the corresponding position error signal for each estimated position. A new position error signal is detected and compared to the two estimated position error signals. After sufficient system evolution, the control system can select one or the other of the estimators as being correct and the associated displacement is identified as correct and is used for future positioning applications, preferably until the sign of the displacement of the head again becomes ambiguous. The control system can be used in combination with other control mechanisms including those using complimentary control information that provides more complete positioning information. The control method, system and apparatus find particularly advantageous application in magnetic storage hard disk drive systems.
摘要翻译：伺服控制装置和方法至少部分地基于与受控变量具有绝对值函数关系的可观察变量来控制系统，并且对于从标称值的正和负变化不改变符号。当应用于对象的位置控制时，控制系统观察位置误差信号的值，并将该信号映射到两个不同的潜在正确的位移值。启动控制系统内的两个估计器，一个使用正位移，另一个使用负位移，两个估计器各自预测对象的未来位置和每个估计位置的对应位置误差信号。检测到新的位置误差信号并将其与两个估计的位置误差信号进行比较。在足够的系统演进之后，控制系统可以选择一个或另一个估计器是正确的，相关的位移被识别为正确的，并且用于将来的定位应用，优选地直到头部位移的符号再次变得不明确。控制系统可以与其他控制机制结合使用，包括使用提供更完整的定位信息的互补控制信息的控制系统。控制方法，系统和装置在磁存储硬盘驱动系统中特别有利。

5. 发明申请

WO2006020157A3 USE OF ADAPTIVE FILTERS IN CDMA WIRELESS SYSTEMS EMPLOYING PILOT SIGNALS 审中-公开
标题翻译：自适应滤波器在采用导频信号的CDMA无线系统中的应用
公开(公告)号：WO2006020157A3
公开(公告)日：2006-04-06
申请号：PCT/US2005025335
申请日：2005-07-15
申请人： ACORN TECH INC , DESPAIN ALVIN M
发明人： DESPAIN ALVIN M
IPC分类号： H04B1/707 , H04L25/03
CPC分类号： H04B1/7097 , H04L25/03038
摘要： A CDMA radio system uses an adaptive filter in a receiver to mitigate multipath radio propagation and to filter out interfering signals. Characteristics of an initial stage of the filter preferably are determined by cross correlation of a generated pilot signal and the input signal with the integration of the correlation performed over a time period selected to be an integral number of symbol periods. The integration causes the portions of the cross correlation corresponding to the user subchannels to average substantially to zero, so that the pilot channel signal correlation is the primary contribution to the signal used to characterize the channel to establish the coefficients of the adaptive filter for the receiver.
摘要翻译： CDMA无线电系统在接收机中使用自适应滤波器来减轻多径无线电传播并滤除干扰信号。滤波器的初始阶段的特性优选地通过所生成的导频信号和输入信号的互相关来确定，其中在所选择的时间周期内执行的相关的积分是整数个符号周期。该积分导致对应于用户子信道的互相关部分基本上平均为零，使得导频信道信号相关性是对用于表征信道的信号的主要贡献，以建立接收机的自适应滤波器的系数。

6. 发明申请

WO2005069379A3 METHOD FOR DEPINNING THE FERMI LEVEL OF A SEMICONDUCTOR AT AN ELECTRICAL JUNCTION AND DEVICES INCORPORATING SUCH JUNCTIONS 审中-公开
标题翻译：用于识别电气连接处的半导体的FERMI电平的方法和包含这种结点的器件
公开(公告)号：WO2005069379A3
公开(公告)日：2005-10-13
申请号：PCT/US2004042084
申请日：2004-12-14
申请人： ACORN TECH INC , GRUPP DANIEL E , CONNELLY DANIEL J
发明人： GRUPP DANIEL E , CONNELLY DANIEL J
IPC分类号： H01L21/285 , H01L21/329 , H01L21/336 , H01L29/08 , H01L29/45 , H01L29/47 , H01L29/78 , H01L29/786 , H01L29/812 , H01L29/872
CPC分类号： H01L29/0895 , H01L21/28537 , H01L29/45 , H01L29/456 , H01L29/47 , H01L29/66143 , H01L29/66636 , H01L29/78 , H01L29/7827 , H01L29/7839 , H01L29/785 , H01L29/812
摘要： An electrical junction that includes a semiconductor (e.g., C, Ge, or an Si-based semiconductor), a conductor, and an interface layer disposed therebetween. The interface layer is sufficiently thick to depin a Fermi level of the semiconductor, yet sufficiently thin to provide the junction with a specific contact resistance of less than or equal to approximately 1000 ohm-µm , and in some cases a minimum specific contact resistance.
摘要翻译：包括半导体（例如，C，Ge或Si基半导体），导体和设置在其间的界面层的电连接。界面层足够厚以消除半导体的费米能级，但足够薄以提供具有小于或等于约1000欧姆 - 米2的特定接触电阻的结，并且在一些情况下为最小特定接触抵抗性。

7. 发明申请

WO0145092A3 DATA STORAGE SYSTEM USING SYNCHRONIZATION SIGNALS INCORPORATING SERVO INFORMATION 审中-公开
标题翻译：利用同步信号并结合伺服信息的数据存储系统
公开(公告)号：WO0145092A3
公开(公告)日：2002-03-28
申请号：PCT/US0042748
申请日：2000-12-12
申请人： ACORN TECH INC
发明人： GAINES R STOCKTON , DESPAIN ALVIN M
IPC分类号： G11B5/596 , G11B21/10 , G11B19/28
CPC分类号： G11B5/59611
摘要： Position control for a read head with respect to a track on a storage disk is improved using a synchronization pattern that includes servo information as well as synchronization signals used to set a clock for recovering data from a disk. A disk stores data along substantially concentric tracks positioned at varying radii on the disk's data storage surface, with the data organized into data blocks. Synchronization patterns are provided at the start of each data block from which a read head can derive a synchronization signal useful for reading data from the data block. This synchronization signal is input to a phase locked oscillator to train a phase locked detector that recovers data signals stored in the data block. Servo information, suitable for identifying a misalignment between the read head and the track being read is also provided within the synchronization pattern. This may be accomplished by providing a conventional synchronization pattern modulated with a two dimensional servo pattern that includes information about the relative position of the read head with respect to a track. Conventional sector or wedge servo information for positioning the read head with respect to a track may be provided in addition to the servo data provided for each data storage block.
摘要翻译：使用包括伺服信息的同步模式以及用于设置从磁盘恢复数据的时钟的同步信号，改进了读取头相对于存储盘上的轨道的位置控制。磁盘存储数据沿磁盘数据存储表面上不同半径的实质同心磁道存储，并将数据组织成数据块。同步模式在每个数据块的开始处提供，读取头可以从该数据块导出用于从数据块读取数据的同步信号。该同步信号被输入到锁相振荡器以训练锁相检波器，该锁相检波器恢复存储在数据块中的数据信号。伺服信息也适用于识别读取磁头和正在读取的磁道之间的未对准，也在同步模式内提供。这可以通过提供用二维伺服模式调制的常规同步模式来实现，该二维伺服模式包括关于读取头相对于轨道的相对位置的信息。除了为每个数据存储块提供的伺服数据之外，还可以提供用于将读取头相对于轨道定位的常规扇区或楔形伺服信息。

8. 发明申请

WO2011115859A3 BIAXIAL STRAINED FIELD EFFECT TRANSISTOR DEVICES 审中-公开
标题翻译：双相应变场效应晶体管器件
公开(公告)号：WO2011115859A3
公开(公告)日：2011-11-10
申请号：PCT/US2011028255
申请日：2011-03-14
申请人： ACORN TECH INC , CLIFTON PAUL A
发明人： CLIFTON PAUL A
IPC分类号： H01L21/336 , H01L21/306 , H01L21/60 , H01L21/768 , H01L21/8234 , H01L21/8238 , H01L23/485 , H01L29/10 , H01L29/417
CPC分类号： H01L29/1054 , H01L21/30608 , H01L21/76897 , H01L21/823807 , H01L21/823878 , H01L23/485 , H01L29/41766 , H01L29/66636 , H01L29/66651 , H01L29/7846 , H01L29/7849 , H01L2924/0002 , H01L2924/00
摘要： A process for forming contacts to a field effect transistor provides edge relaxation of a buried stressor layer, inducing strain in an initially relaxed surface semiconductor layer above the buried stressor layer. A process can start with a silicon or silicon-on-insulator substrate with a buried silicon germanium layer having an appropriate thickness and germanium concentration. Other stressor materials can be used. Trenches are etched through a pre-metal dielectric to the contacts of the FET. Etching extends further into the substrate, through the surface silicon layer, through the silicon germanium layer and into the substrate below the silicon germanium layer. The further etch is performed to a depth to allow for sufficient edge relaxation to induce a desired level of longitudinal strain to the surface layer of the FET. Subsequent processing forms contacts extending through the pre-metal dielectric and at least partially into the trenches within the substrate.
摘要翻译：用于与场效应晶体管形成接触的工艺提供了埋置的应力层的边缘松弛，从而在掩埋应力层上方的最初松弛的表面半导体层中引起应变。一种工艺可以从具有适当厚度和锗浓度的掩埋硅锗层的硅或绝缘体上硅衬底开始。可以使用其他应力源材料。沟槽通过预金属电介质蚀刻到FET的触点。蚀刻进一步延伸到衬底中，穿过表面硅层，穿过硅锗层并进入硅锗层下面的衬底。执行进一步蚀刻到一定深度以允许足够的边缘弛豫以引起对FET的表面层的期望水平的纵向应变。随后的处理形成延伸穿过预金属电介质并且至少部分地延伸到衬底内的沟槽中的触点。

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