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1. 再颁专利

USRE35191E Method for reducing heterostructure acoustic charge transport device SAW drive power requirements 失效
标题翻译：降低异质结声波电荷传输装置SAW驱动功率要求的方法
公开(公告)号：USRE35191E
公开(公告)日：1996-03-26
申请号：US966650
申请日：1992-10-26
申请人： Fred S. Hickernell , Frederick Y. Cho , Frederick M. Fliegel
发明人： Fred S. Hickernell , Frederick Y. Cho , Frederick M. Fliegel
IPC分类号： H03H9/02 , H01L21/70
CPC分类号： H03H9/02976 , Y10T29/42
摘要： A HACT device employing a thin-film overlay of a more strongly piezoelectric material can operate as a delay line and as a tapped delay line, or transversal filter, while requiring less total power for the SAW clock signal. The increased electrical potential per unit total SAW power thus realized facilitates coupling between the total SAW energy and the mobile charge carriers. Some materials systems, such as a GaAs substrate and a ZnO thin-film overlay, will require an intervening thin-film dielectric layer in between the HACT substrate and epitaxial layers and the thin-film piezoelectric overlay. This may be necessitated by chemical, semiconductor device processing, or adhesion incompatibilities between the substrate material and the thin-film overlay material.
摘要翻译：使用更强压电材料的薄膜覆盖物的HACT装置可以作为延迟线和作为抽头延迟线或横向滤波器而工作，同时对于SAW时钟信号需要更少的总功率。由此实现的每单位总SAW功率的增加的电势便于总SAW能量和移动电荷载流子之间的耦合。一些材料系统，例如GaAs衬底和ZnO薄膜覆盖层，将需要在HACT衬底和外延层之间的介入薄膜电介质层和薄膜压电覆盖层。这可能是通过化学，半导体器件处理或衬底材料和薄膜覆盖材料之间的粘合不相容性所必需的。

2. 发明授权

US5270606A Processing robust acoustic reflectors 失效
标题翻译：处理坚固的声反射器
公开(公告)号：US5270606A
公开(公告)日：1993-12-14
申请号：US733933
申请日：1991-07-22
申请人： Frederick Y. Cho , Thomas S. Hickernell , David Penunuri
发明人： Frederick Y. Cho , Thomas S. Hickernell , David Penunuri
IPC分类号： H03H9/02 , H01L41/08
CPC分类号： H03H9/02653 , H03H9/02637 , Y10T29/42
摘要： A reflector arrangement for an acoustic wave device comprises an acoustic wave propagating substrate, reflection elements having at least two different widths separated by at least one gap breadth disposed on the acoustic wave propagating substrate. The at least two different widths enhance reflected waves produced by the propagating acoustic wave in such a fashion to as to achieve a total acoustic reflectivity which is independent of variations in width of the reflection elements.
摘要翻译：用于声波装置的反射器装置包括声波传播基板，具有至少两个不同宽度的反射元件，该至少两个不同的宽度被布置在声波传播基板上的至少一个间隙宽度分开。至少两个不同的宽度以这样的方式增强由传播声波产生的反射波，以便实现与反射元件的宽度的变化无关的全部声反射率。

3. 发明授权

US5073807A Method and apparatus for achieving multiple acoustic charge transport device input contacts 失效
标题翻译：用于实现多个声电荷输送装置输入触点的方法和装置
公开(公告)号：US5073807A
公开(公告)日：1991-12-17
申请号：US562497
申请日：1990-08-02
申请人： Frederick M. Fliegel , Frederick Y. Cho , Fred S. Hickernell
发明人： Frederick M. Fliegel , Frederick Y. Cho , Fred S. Hickernell
IPC分类号： H03H9/02
CPC分类号： H03H9/02976
摘要： A bipolar injector structure, similar to a common-base amplifier circuit, is described for use as a unidirectional injector of charge for a charge-transfer device input circuit. This injector structure acts to reduce the input impedance of such devices. A plurality of bipolar injector structures may be implemented on a single ACT device channel, and electrically connected in parallel, to effect a further reduction of input impedance and a further increase in device dynamic range. By employing an input contact structure which allows charge to be injected at more than one point along the length of the channel, without perturbing charge which was injected at some earlier time, a means for forming a transversal filter function can be realized at the input contact structure in addition to that which is achieved at the output contact structure, thus permitting improved ACT device selectivity when operated as a filter. The plurality of bipolar injection structures form a transversal filter, allowing the overall ACT device to achieve out-of-band rejection and selectivity.
摘要翻译：描述了类似于公共基极放大器电路的双极注入器结构，用作电荷传输器件输入电路的单向注入器。该喷射器结构用于减小这些装置的输入阻抗。多个双极注入器结构可以在单个ACT器件通道上实现并且并联电连接，以进一步降低输入阻抗并进一步增加器件动态范围。通过采用输入接触结构，其允许沿着通道的长度在多于一个点处注入电荷，而不会在较早时间被注入的扰动电荷，可以在输入触点处实现用于形成横向滤波器功能的装置结构以及在输出接触结构处实现的结构，从而当作为滤波器操作时允许改进的ACT器件选择性。多个双极注入结构形成横向滤波器，允许整个ACT器件实现带外抑制和选择性。

4. 发明授权

US4546283A Conductor structure for thick film electrical device 失效
标题翻译：用于厚膜电气设备的导体结构
公开(公告)号：US4546283A
公开(公告)日：1985-10-08
申请号：US607094
申请日：1984-05-04
申请人： Michael D. Adamo , Cederick U. Darter , Frederick Y. Cho
发明人： Michael D. Adamo , Cederick U. Darter , Frederick Y. Cho
IPC分类号： H01L21/48 , H01L21/58 , H01L21/60 , H01L23/498 , H05K3/24 , H01L41/08 , H05K7/02
CPC分类号： H01L24/85 , H01L21/4853 , H01L21/4867 , H01L23/49811 , H01L23/49883 , H01L24/32 , H01L24/48 , H01L24/83 , H05K3/245 , H01L2224/05624 , H01L2224/29111 , H01L2224/2919 , H01L2224/32225 , H01L2224/32245 , H01L2224/45015 , H01L2224/45124 , H01L2224/48091 , H01L2224/48227 , H01L2224/48247 , H01L2224/48455 , H01L2224/48472 , H01L2224/48724 , H01L2224/48764 , H01L2224/73265 , H01L2224/83194 , H01L2224/8385 , H01L2224/83951 , H01L2224/85205 , H01L2224/85444 , H01L2224/85464 , H01L2224/85469 , H01L24/45 , H01L24/73 , H01L2924/00014 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/0102 , H01L2924/01022 , H01L2924/0103 , H01L2924/01046 , H01L2924/01047 , H01L2924/0105 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/0132 , H01L2924/0133 , H01L2924/014 , H01L2924/0665 , H01L2924/07802 , H01L2924/12043 , H01L2924/14 , H01L2924/15724 , H01L2924/15787 , H01L2924/19041 , H01L2924/19043 , H01L2924/20752 , H05K2201/0391
摘要： A thick film device conductor arrangement suitable for making connections between a resiliently mounted element such as a surface acoustic delay line and adjacent thick film conductors and then with the device connecting pins. The thick film conductors include a double layer structure of differing noble metals each selected for desirable properties in designated areas of the device.
摘要翻译：一种厚膜装置导体装置，适于在诸如表面声延迟线和相邻的厚膜导体之间的弹性安装元件之间连接，然后与装置连接销连接。厚膜导体包括在器件的指定区域中选择为期望性质的不同贵金属的双层结构。

5. 发明授权

US5420472A Method and apparatus for thermal coefficient of expansion matched substrate attachment 失效
标题翻译：热膨胀系数匹配衬底附着的方法和装置
公开(公告)号：US5420472A
公开(公告)日：1995-05-30
申请号：US182524
申请日：1994-01-18
申请人： Frederick Y. Cho , David Penunuri
发明人： Frederick Y. Cho , David Penunuri
IPC分类号： H03H9/05 , H03H9/10 , H01L41/08
CPC分类号： H03H9/0585 , H03H9/02551 , H03H9/02559 , H03H9/1071
摘要： A radio frequency apparatus desirably includes at least one microelectronic device comprising a substrate including the at least one microelectronic device and a package base for mounting the microelectronic device. The package base includes external interconnections coupled to internal interconnections and an adhesive affixing the substrate to the package base. The adhesive is disposed along a first axis of the substrate. The internal interconnections are coupled to the microelectronic device. A lid is sealed to the package base. The lid seals the microelectronic device.
摘要翻译：射频设备理想地包括至少一个微电子器件，其包括包括至少一个微电子器件的衬底和用于安装微电子器件的封装基座。封装基部包括耦合到内部互连的外部互连和将基板固定到封装基座的粘合剂。粘合剂沿着基板的第一轴线设置。内部互连耦合到微电子器件。盖子被密封到包装基座。盖子密封微电子器件。

6. 发明授权

US5265267A Integrated circuit including a surface acoustic wave transformer and a balanced mixer 失效
标题翻译：集成电路，包括表面声波变压器和平衡混频器
公开(公告)号：US5265267A
公开(公告)日：1993-11-23
申请号：US751845
申请日：1991-08-29
申请人： William J. Martin , David Penunuri , Jose I. Suarez , Frederick Y. Cho
发明人： William J. Martin , David Penunuri , Jose I. Suarez , Frederick Y. Cho
IPC分类号： H03H9/64 , H03D7/14 , H03H9/00 , H03H9/02 , H03H9/05 , H04B1/26 , H03H9/145
CPC分类号： H04B1/26 , H03D7/1441 , H03D7/1458 , H03D7/1483 , H03D7/165 , H03H9/0038 , H03H9/0542 , H03D2200/0007
摘要： In a radio transceiver (100), an IF stage (110) is formed on a single substrate. A balanced or image rejection mixer (204) having two pairs of inputs and a pair of outputs is integrated on an IC substrate (202). Disposed on the IC substrate are SAW transformers (210, 212 and 214) which provide a desired phase transformation. The SAW transformers comprise piezoelectric layers (228) and metallization layers (230) which are suitably patterned to provide the desired phase transformation and frequency selectivity.
摘要翻译：在无线电收发器（100）中，IF单元（110）形成在单个基板上。具有两对输入和一对输出的平衡或镜像抑制混频器（204）集成在IC基板（202）上。设置在IC基板上的是提供期望的相变的SAW变压器（210,212和214）。 SAW变压器包括压电层（228）和金属化层（230），其被适当地构图以提供期望的相变和频率选择性。

7. 发明授权

US5254962A Combined acoustic wave device and ceramic block filter structure 失效
标题翻译：组合弹性表面波器件和陶瓷块滤波器结构
公开(公告)号：US5254962A
公开(公告)日：1993-10-19
申请号：US901005
申请日：1992-06-19
申请人： Douglas A. Morris , Raymond L. Sokola , Frederick Y. Cho , Charles W. Shanley
发明人： Douglas A. Morris , Raymond L. Sokola , Frederick Y. Cho , Charles W. Shanley
IPC分类号： H01P1/205 , H01P1/213 , H03H9/02 , H03H9/10 , H03H9/64 , H04B1/03 , H04B1/08 , H03H9/00 , H01P1/20
CPC分类号： H01P1/2056 , H03H9/0538
摘要： Surface acoustic wave devices (160) as well as other electronic devices, can be mounted into the sides of ceramic blocks (150) that comprise a ceramic block filter device. The surface acoustic wave device as mounted in the filter block does not require or displace volume that would be required to mount the surface acoustic wave devices in their own housings.
摘要翻译：表面声波装置（160）以及其他电子装置可以安装在陶瓷块（150）的包括陶瓷块过滤装置的侧面中。安装在过滤器块中的表面声波装置不需要或移动将声表面波装置安装在其自己的壳体中所需的体积。

8. 发明授权

US5212420A Method and apparatus for surface acoustic wave reflector grating 失效
标题翻译：表面声波反射器光栅的方法和装置
公开(公告)号：US5212420A
公开(公告)日：1993-05-18
申请号：US754477
申请日：1991-09-03
申请人： Thomas S. Hickernell , David Penunuri , Frederick Y. Cho
发明人： Thomas S. Hickernell , David Penunuri , Frederick Y. Cho
IPC分类号： H03H3/08 , H03H9/02 , H03H9/25 , H03H9/64
CPC分类号： H03H9/02637 , H03H9/02653
摘要： An acoustic wave device comprises an acoustic wave transducer coupled to an acoustic wave propagating substrate. The acoustic wave transducer converts signal energy between electrical and acoustical forms. Acoustic reflectors are placed one on either side of the acoustic wave transducer. The acoustic reflectors are composed of acoustic reflection elements spaced approximately one wavelength apart, and provide enhanced acoustic acoustic reflections together with relaxed fabrication constraints.

9. 发明授权

US5070271A Multi-dimensional acoustic charge transport device 失效
标题翻译：多维声电荷传输装置
公开(公告)号：US5070271A
公开(公告)日：1991-12-03
申请号：US489165
申请日：1990-03-05
申请人： Frederick Y. Cho , Frederick M. Fliegel
发明人： Frederick Y. Cho , Frederick M. Fliegel
IPC分类号： H03H9/02
CPC分类号： H03H9/02976
摘要： A piezoelectric semiconductor device for greatly increasing the linear channel length and storage capacity of an acoustic charge transport (ACT) device. Synchronized surface acoustic wave devices are aligned approximately orthogonally to each other so that in an angular portion of the channel, the charge packets of an input signal are bent at approximately a 45.degree. angle. As a result, channel length and therefore storage capacity of the channel and ACT device are greatly increased. One embodiment is a 45.degree. angle spiral channel. Another embodiment is a serpentine channel with 45.degree. angle bends.
摘要翻译：一种用于大大增加声电荷传输（ACT）装置的线性通道长度和存储容量的压电半导体装置。同步的声表面波器件大致正交地对齐，使得在通道的角部分中，输入信号的电荷包被弯曲成大约45°的角度。结果，信道长度以及通道和ACT设备的存储容量大大增加。一个实施例是45°角螺旋通道。另一个实施例是具有45度弯曲弯曲的蛇形通道。

10. 发明授权

US4626775A Radio frequency probing apparatus for surface acoustic wave devices 失效
标题翻译：声表面波装置用射频探测装置
公开(公告)号：US4626775A
公开(公告)日：1986-12-02
申请号：US607087
申请日：1984-05-04
申请人： Frederick Y. Cho , Michael D. Adamo , David E. Leeson
发明人： Frederick Y. Cho , Michael D. Adamo , David E. Leeson
IPC分类号： G01R1/073 , G01R31/28 , G01R31/02
CPC分类号： G01R31/2834 , G01R1/07342
摘要： Wafer probing apparatus especially adapted to probing surface acoustic wave (SAW) device die such as delay lines is disclosed; the apparatus includes a probe card especially suited to the radio frequency and multiple output nature of a SAW delay line together with a computer-aided electronic system for exciting the delay line and evaluating its output.
摘要翻译：公开了特别适用于探测诸如延迟线的表面声波（SAW）器件裸片的晶片探测装置; 该装置包括特别适合SAW延迟线的射频和多输出特性的探针卡，以及用于激励延迟线并评估其输出的计算机辅助电子系统。

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