公开(公告)号：US20020182762A1

公开(公告)日：2002-12-05

申请号：US09866637

申请日：2001-05-30

Applicant: MOTOROLA INC.

Inventor： Clinton C. Powell

IPC: H01L021/00

CPC classification number: H01L21/8258 ,  H01L27/0605 ,  H01L27/0688

Abstract: High quality epitaxial layers of monocrystalline materials can be grown overlying monocrystalline substrates such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. One way to achieve the formation of a compliant substrate includes first growing an accommodating buffer layer on a silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing surfactant enhanced epitaxy, epitaxial growth of single crystal silicon onto single crystal oxide, and epitaxial growth of Zintl phase materials. The fabrication of on chip high frequency communications devices such as direct conversion and sampling circuits with direct interface to high speed compound semiconductor material in integrated circuits for high speed data acquisition and antenna interface is disclosed for direct coupling of RF signals in single chip applications.

Abstract translation: 通过形成用于生长单晶层的柔性衬底，可以将单晶材料的高质量外延层生长在覆盖单晶衬底（例如大硅晶片）上。 实现顺应性衬底的形成的一种方式包括首先在硅晶片上生长容纳缓冲层。 容纳缓冲层是通过氧化硅的非晶界面层与硅晶片间隔开的单晶氧化物层。 非晶界面层消耗应变并允许高质量单晶氧化物容纳缓冲层的生长。 容纳缓冲层与下面的硅晶片和上覆的单晶材料层晶格匹配。 通过非晶界面层处理容纳缓冲层和底层硅衬底之间的任何晶格失配。 此外，顺应性衬底的形成可以包括利用表面活性剂增强的外延，将单晶硅外延生长到单晶氧化物上，以及Zintl相材料的外延生长。 公开了在用于高速数据采集和天线接口的集成电路中与高速化合物半导体材料直接接口的直接转换和采样电路的片上高频通信设备的制造，用于单芯片应用中的RF信号的直接耦合。

公开(公告)号：US20020179930A1

公开(公告)日：2002-12-05

申请号：US09870835

申请日：2001-06-01

Applicant: MOTOROLA, INC.

Inventor： James S. Irwin ,  Clinton C. Powell ,  Timothy J. Johnson ,  Kevin B. Traylor ,  Duane C. Rabe ,  Barbara Foley Barenburg

IPC: H01L031/0328 ,  H01L031/0336 ,  H01L031/072 ,  H01L031/109

CPC classification number: G01R31/311

Abstract: A composite semiconductor structure includes islands of noncompound semiconductor materials formed on a noncompound substrate, and an optical testing structure. In one embodiment, a scan chain runs through the noncompound substrate (and possibly also through the islands) and terminates in the islands at optical interface elements, one of which is an optical emitter and the other of which is an optical detector. A test device inputs test signals to, and reads test signals from, the scan chain by interfacing optically with the optical interface elements. In another embodiment, an optical detector is formed in the silicon substrate and an optical emitter is formed in the compound semiconductor material. A leaky waveguide communicating with the emitter overlies the detector, and detection by the detector of light emitted by the emitter is an indication of the absence of an intended circuit element between the detector and the leaky side of the waveguide.

Abstract translation: 复合半导体结构包括形成在非复合衬底上的非复合半导体材料岛和光学测试结构。 在一个实施例中，扫描链穿过非复合衬底（并且可能还穿过岛）并终止在光学界面元件处的岛中，其中一个是光发射器，另一个是光学检测器。 测试设备通过与光学接口元件光学接口输入测试信号，并从扫描链中读取测试信号。 在另一个实施例中，在硅衬底中形成光学检测器，并且在化合物半导体材料中形成光发射器。 与发射器连通的泄漏波导覆盖在检测器上，并且由发射器发射的光的检测器的检测是在检测器和波导的泄漏侧之间不存在预期电路元件的指示。

公开(公告)号：US20040013083A1

公开(公告)日：2004-01-22

申请号：US10131660

申请日：2002-04-24

Applicant: MOTOROLA, INC.

Inventor： Charles Leroy Sobchak ,  Mahibur Rahman ,  Clinton C. Powell

IPC: H04L001/00

CPC classification number: H04L25/03133 ,  H04L2025/0377

Abstract: A generator (304) generates first and second training signals (320, 318) that originate within a wireless communication device (FIG. 3) instead of being received from a source outside the device. A receive portion (212, 214, 216) of the device processes the first training signal to derive a processed training signal. An adaptive equalizer (310) equalizes the processed training signal to derive an equalized training signal. A processor (312) compares the equalized training signal and the second training signal using an adaptive algorithm to derive coefficients for the adaptive equalizer to compensate for variations in the receive portion, and adjusts the adaptive equalizer in accordance with the coefficients to derive a compensated output signal.

Abstract translation: 发生器（304）生成起始于无线通信设备（图3）的第一和第二训练信号（320,318），而不是从设备外部的源接收。 设备的接收部分（212,214,216）处理第一训练信号以导出经处理的训练信号。 自适应均衡器（310）对经处理的训练信号进行均衡以导出均衡的训练信号。 处理器（312）使用自适应算法比较均衡的训练信号和第二训练信号，以导出自适应均衡器的系数以补偿接收部分的变化，并且根据系数调整自适应均衡器以导出补偿的输出 信号。

公开(公告)号：US20030215002A1

公开(公告)日：2003-11-20

申请号：US10150844

申请日：2002-05-17

Applicant: MOTOROLA, INC.

Inventor： Robert Gorday ,  Clinton C. Powell ,  David Taubenheim

IPC: H04K001/00

CPC classification number: H04B1/7115 ,  H04B1/709 ,  H04B1/7117 ,  H04B2201/70701 ,  H04B2201/7071

Abstract: A processor (216) time-shares correlators (206) to process (402) pilot channels for a plurality of branches to derive pilot symbols for each of the plurality of branches before processing control and data channels. The processor and the correlators cooperate to determine (404) from the pilot symbols a timing estimate for each of the plurality of branches. A signal quality estimator (210) determines (406) from the pilot symbols a signal quality for each of the plurality of branches. Subsequently, the processor cooperates with the correlators to process (408) the control and data channels of the plurality of branches, in an order determined by a plurality of branch attributes including at least one of the signal quality and the timing estimate determined for each of the plurality of branches.

Abstract translation: 处理器（216）用于处理（402）多个分支的导频信道的时间共享相关器（206），以在处理控制和数据信道之前导出多个分支中的每一个的导频符号。 协处理器和相关器协调从导频符号确定（404）多个分支中的每一个的定时估计。 信号质量估计器（210）从导频符号确定（406）每个分支的信号质量。 随后，处理器与相关器协作以由多个分支属性确定的顺序处理（408）多个分支的控制和数据信道，该顺序属性包括以下各项中确定的信号质量和定时估计中的至少一个： 多个分支。