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1. 发明授权

US4556812A Acoustic resonator with Al electrodes on an AlN layer and using a GaAs substrate 失效
标题翻译：在AlN层上具有Al电极并使用GaAs衬底的声谐振器
公开(公告)号：US4556812A
公开(公告)日：1985-12-03
申请号：US632165
申请日：1984-07-18
申请人： Gerald R. Kline , Kenneth M. Lakin
发明人： Gerald R. Kline , Kenneth M. Lakin
IPC分类号： H03H3/02 , H03H3/04 , H01L41/08
CPC分类号： H03H9/173 , H03H3/04
摘要： A method of fabricating an acoustic wave resonator wherein all processing steps are accomplished from a single side of said substrate. The method involves deposition of a multi-layered Al/AlN structure on a GaAs substrate followed by a series of fabrication steps to define a resonator from said composite. The resulting resonator comprises an AlN layer between two Al layers and another layer of AlN on an exterior of one of said Al layers.
摘要翻译：一种制造声波谐振器的方法，其中所有处理步骤都是从所述衬底的单侧完成的。该方法包括在GaAs衬底上沉积多层Al / AlN结构，接着是一系列制造步骤以从所述复合材料中限定谐振器。所得到的谐振器包括在两个Al层之间的AlN层和在所述Al层之一的外部的另一AlN层。

2. 发明授权

US4495466A Eddy current test probe with circumferential Segments and method of testing material surrounding fastener holes 失效
标题翻译：具有圆周的涡流测试探头和围绕紧固件孔的材料测试方法
公开(公告)号：US4495466A
公开(公告)日：1985-01-22
申请号：US366732
申请日：1982-04-08
申请人： Kenneth M. Lakin
发明人： Kenneth M. Lakin
IPC分类号： G01N27/90 , G01R33/12
CPC分类号： G01N27/904
摘要： An instrument having a multi-segmented cup core of a high permeability material with a center post. The outer wall of the cup contains equidistant holes and slots through which a plurality of individual windings are constructed to form a circular array of pick-up coils. A primary winding or search coil is constructed around the center post. Excitation of the search coil induces eddy currents in adjacent multi-layered bolt hole regions which in turn produce a voltage in each of the pick-up coils. As a crack in the material under test will cause an abnormal distribution of eddy currents, a comparison of the voltage measurements of the specimen under test with those of a reference sample will detect the presence of a crack and its corresponding orientation.
摘要翻译：具有具有中心柱的高磁导率材料的多分段杯芯的仪器。杯的外壁包含等距的孔和狭槽，多个单独的绕组被构造成通过该槽形成拾取线圈的圆形阵列。在中心柱周围构造初级绕组或搜索线圈。搜索线圈的激励在相邻的多层螺栓孔区域中引起涡流，其又在每个拾取线圈中产生电压。由于被测材料中的裂纹会引起涡流的异常分布，所以将被测样品的电压测量与参考样品的电压测量结果进行比较，将检测裂纹的存在及其相应的取向。

3. 发明授权

US4719383A Piezoelectric shear wave resonator and method of making same 失效
标题翻译：压电剪切波谐振器及其制作方法
公开(公告)号：US4719383A
公开(公告)日：1988-01-12
申请号：US913192
申请日：1986-09-30
申请人： Jin S. Wang , Kenneth M. Lakin , Allen R. Landin
发明人： Jin S. Wang , Kenneth M. Lakin , Allen R. Landin
IPC分类号： C23C14/22 , C23C14/34 , C23C14/35 , H01J37/34 , H01L41/24 , H03H3/02 , H01L41/08
CPC分类号： C23C14/3435 , C23C14/225 , C23C14/35 , H01J37/3408 , H03H3/02
摘要： An acoustic shear wave resonator comprising a piezoelectric film having its C-axis substantially inclined from the film normal such that the shear wave coupling coefficient significantly exceeds the longitudinal wave coupling coefficient, whereby the film is capable of shear wave resonance, and means for exciting said film to resonate. The film is prepared by deposition in a dc planar magnetron sputtering system to which a supplemental electric field is applied. The resonator structure may also include a semiconductor material having a positive temperature coefficient of resonance such that the resonator has a temperature coefficient of resonance approaching 0 ppm/.degree.C.
摘要翻译：一种声剪切波谐振器，其特征在于，包括：压电薄膜，其C轴基本上从膜垂直地倾斜，使得剪切波耦合系数显着超过纵波耦合系数，由此该薄膜能够进行剪切波共振，以及用于激发所述电影引起共鸣。该膜通过在施加补充电场的直流平面磁控溅射系统中沉积来制备。谐振器结构还可以包括具有正温度谐振系数的半导体材料，使得谐振器的谐振温度系数接近0ppm /℃。

4. 发明授权

US4502932A Acoustic resonator and method of making same 失效
标题翻译：声谐振器及其制作方法
公开(公告)号：US4502932A
公开(公告)日：1985-03-05
申请号：US541608
申请日：1983-10-13
申请人： Gerald R. Kline , Kenneth M. Lakin
发明人： Gerald R. Kline , Kenneth M. Lakin
IPC分类号： H03H3/02 , H03H3/04 , H03H9/17 , C23C15/00
CPC分类号： H03H9/173 , H03H3/04
摘要： A method of fabricating an acoustic wave resonator wherein all processing steps are accomplished from a single side of said substrate. The method involves deposition of a multi-layered Al/AlN structure on a GaAs substrate followed by a series of fabrication steps to define a resonator from said composite. The resulting resonator comprises an AlN layer between two Al layers and another layer of AlN on an exterior of one of said Al layers.
摘要翻译：一种制造声波谐振器的方法，其中所有处理步骤都是从所述衬底的单侧完成的。该方法包括在GaAs衬底上沉积多层Al / AlN结构，接着是一系列制造步骤以从所述复合材料中限定谐振器。所得到的谐振器包括在两个Al层之间的AlN层和在所述Al层之一的外部的另一AlN层。

5. 发明授权

US5630949A Method and apparatus for fabricating a piezoelectric resonator to a resonant frequency 失效
标题翻译：将压电谐振器制造成谐振频率的方法和装置
公开(公告)号：US5630949A
公开(公告)日：1997-05-20
申请号：US458025
申请日：1995-06-01
申请人： Kenneth M. Lakin
发明人： Kenneth M. Lakin
IPC分类号： H03H3/04 , H01L21/3065 , C23C14/54 , C23F1/02
CPC分类号： H03H3/04 , Y10T29/42
摘要： Resonator fabricating method and apparatus employ the resonance conditions of the piezoelectric resonator itself to control an RF-powered plasma etching or deposition process. In its basic implementation, the apparatus does not require monitoring of the resonant frequency of the resonator as it is being trimmed. Rather, the resonator provides an impedance which changes as the plasma action changes the thickness of the resonator and thereby changes the resonant frequency of the piezoelectric resonator. The changing impedance in turn changes the rate of plasma action until the action substantially stops with the resonant frequency of the resonator substantially equal to the frequency of the RF source.
摘要翻译：谐振器制造方法和装置采用压电谐振器本身的谐振条件来控制RF供电的等离子体蚀刻或沉积工艺。在其基本实现中，该装置不需要监视谐振器在被修整时的谐振频率。相反，谐振器提供随着等离子体动作改变谐振器的厚度并由此改变压电谐振器的谐振频率而改变的阻抗。随着谐振器的谐振频率基本上等于RF源的频率，改变的阻抗又改变等离子体作用的速率，直到作用基本上停止。

6. 发明授权

US4379261A Rotating magnetic field device for detecting cracks in metal 失效
标题翻译：用于检测金属裂纹的旋转磁场装置
公开(公告)号：US4379261A
公开(公告)日：1983-04-05
申请号：US185968
申请日：1980-09-10
申请人： Kenneth M. Lakin
发明人： Kenneth M. Lakin
IPC分类号： G01N27/90 , G01R33/12
CPC分类号： G01N27/904
摘要： An eddy current type of inspection device having input signal coils on cores radially arranged around a center and having outer ends of the cores which rest against a surface of a metal assembly to be tested for defects. The input coils are energized by an AC signal of different phase for each respective coil so that a rotating magnetic field is produced in the assembly being tested. An output sensor coil is mounted at the center of the tester immediately adjacent to such test surface for coupling out a signal induced from the rotating field. A specific embodiment has three coils physically spaced 120.degree. apart, for energizing by a three-phase power source.
摘要翻译：一种涡流型检查装置，其具有围绕中心径向布置的芯上的输入信号线圈，并且具有芯的外端，其抵靠待测试的缺陷的金属组件的表面。输入线圈通过每个相应线圈的不同相位的AC信号通电，使得在被测组件中产生旋转磁场。输出传感器线圈安装在测试仪的中心，紧邻这种测试表面，用于耦合出从旋转场引起的信号。具体实施例具有物理间隔120°的三个线圈，用于通过三相电源供电。

7. 发明授权

US5821833A Stacked crystal filter device and method of making 失效
标题翻译：堆叠式晶体滤波器及其制作方法
公开(公告)号：US5821833A
公开(公告)日：1998-10-13
申请号：US578828
申请日：1995-12-26
申请人： Kenneth M. Lakin
发明人： Kenneth M. Lakin
IPC分类号： H03H9/58 , H03H9/00
CPC分类号： H03H9/589 , H03H9/585
摘要： A piezoelectric device includes a stacked crystal filter, a supporting substrate and an acoustic reflector between the filter and substrate for suppressing undesired resonant frequencies. The acoustic reflector includes a set of quarter wavelength layers of alternating higher and lower impedances. The reflector provides a large reflection coefficient for a bandwidth that encompasses only desired frequencies generated by the stacked crystal filter. By changing the nature of the material and the number of layers, the bandwidth and center frequency of the acoustic reflector may be varied to encompass a desired range of frequencies. To reduce the magnitude of side lobes at undesired frequencies, the impedance differences between layers of the reflector are reduced with depth into the reflector. The side lobes may also be reduced by serially connecting two stacked crystal filters having acoustic reflectors of the same material but with a different number of quarter wavelength layers.
摘要翻译：压电器件包括层叠晶体滤波器，支撑衬底和滤光器和衬底之间的声反射器，用于抑制不期望的谐振频率。声反射器包括一组交替的较高和较低阻抗的四分之一波长层。反射器对于仅包含由堆叠晶体滤波器产生的期望频率的带宽提供大的反射系数。通过改变材料的性质和层数，可以改变声反射器的带宽和中心频率以包含期望的频率范围。为了减少不希望的频率的旁瓣的大小，反射器的层之间的阻抗差随着反射器的深度而减小。通过串联连接具有相同材料的声反射器但具有不同数量的四分之一波长层的两个叠层晶体滤波器，也可以减小旁瓣。

8. 发明授权

US4640756A Method of making a piezoelectric shear wave resonator 失效
标题翻译：制造压电剪切波谐振器的方法
公开(公告)号：US4640756A
公开(公告)日：1987-02-03
申请号：US736164
申请日：1985-05-20
申请人： Jin S. Wang , Kenneth M. Lakin , Allen R. Landin
发明人： Jin S. Wang , Kenneth M. Lakin , Allen R. Landin
IPC分类号： C23C14/22 , C23C14/34 , C23C14/35 , H01J37/34 , H01L41/24 , H03H3/02 , C23C14/38
CPC分类号： C23C14/3435 , C23C14/225 , C23C14/35 , H01J37/3408 , H01L41/316 , H03H3/02
摘要： An acoustic shear wave resonator comprising a piezoelectric film having its C-axis substantially inclined from the film normal such that the shear wave coupling coefficient significantly exceeds the longitudinal wave coupling coefficient, whereby the film is capable of shear wave resonance, and means for exciting said film to resonate. The film is prepared by deposition in a dc planar magnetron sputtering system to which a supplemental electric field is applied. The resonator structure may also include a semiconductor material having a positive temperature coefficient of resonance such that the resonator has a temperature coefficient of resonance approaching 0 ppm/.degree.C.
摘要翻译：一种声剪切波谐振器，其特征在于，包括：压电薄膜，其C轴基本上从膜垂直地倾斜，使得剪切波耦合系数显着超过纵波耦合系数，由此该薄膜能够进行剪切波共振，以及用于激发所述电影引起共鸣。该膜通过在施加补充电场的直流平面磁控溅射系统中沉积来制备。谐振器结构还可以包括具有正温度谐振系数的半导体材料，使得谐振器的谐振温度系数接近0ppm /℃。

9. 发明授权

US4271707A Received signal encoding and correlating system 失效
标题翻译：接收信号编码及相关系统
公开(公告)号：US4271707A
公开(公告)日：1981-06-09
申请号：US95576
申请日：1979-11-16
申请人： Kenneth M. Lakin
发明人： Kenneth M. Lakin
IPC分类号： G01N29/26 , G01S15/89 , G01N29/04
CPC分类号： G01S15/8959 , G01N29/262 , G01N2291/02854
摘要： An ultrasonic phased array imaging system having a received signal encoding and correlating system. Pulse echoes picked up by each of the plurality of transducers are passed by a timed gate signal only during a predetermined time interval when a return signal from a focal point is expected to arrive. The return signal is also encoded by a chirp waveform. All gated chirp signals are fed to a dispersive transversal filter where their sum occurs simultaneously.
摘要翻译：一种具有接收信号编码和相关系统的超声相控阵成像系统。当来自焦点的返回信号预期到达时，在多个换能器中的每一个拾取的脉冲回波仅在预定时间间隔期间通过定时门信号。返回信号也由啁啾波形编码。所有门控啁啾信号都被馈送到色散横向滤波器，其中它们的和同时出现。

10. 发明授权

US4142212A Two-dimensional surface acoustic wave image scanning 失效
标题翻译：二维表面声波图像扫描
公开(公告)号：US4142212A
公开(公告)日：1979-02-27
申请号：US822126
申请日：1977-08-05
申请人： Marion L. Scott , Kenneth M. Lakin
发明人： Marion L. Scott , Kenneth M. Lakin
IPC分类号： H04N3/10 , H04N3/14
CPC分类号： H04N3/10
摘要： An output electrode which is angularly oriented with respect to the reading and scanning electrode is used with associated circuitry to provide a two dimensional image scan for an acousto-optical cell. The output electrode is an interdigitally shaped echelon and intercepts the output signal at a position which is determined by the transit time to a selected step of the echelon.
摘要翻译：使用相对于读取和扫描电极成角度取向的输出电极与相关联的电路来为声光电池提供二维图像扫描。输出电极是交叉形状的梯形，并且在由到梯级的选定步骤的通行时间确定的位置截取输出信号。

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