公开(公告)号：WO1985005416A1

公开(公告)日：1985-12-05

申请号：PCT/US1985000928

申请日：1985-05-17

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  HILL, William, H.

IPC: F16C11/12

CPC classification number: F16C11/12 ,  H01L24/45 ,  H01L24/78 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/78 ,  H01L2924/00014 ,  H01L2924/01013 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/01079 ,  H01L2924/12041 ,  H01L2924/14 ,  H01R43/0207 ,  H01L2224/48 ,  H01L2924/00015 ,  H01L2924/00

Abstract: A flexural pivot structure useful in a wire bonding machine bonding head (10) is disclosed and includes first and second leaf spring assemblies (39, 41) which provide a pivot axis (PA) displaced from the pivoting structure. Each leaf spring assembly includes leaf spring arm (39a, 39b, 41a, 41b) extending outwardly from a central mounting position (39c, 41c) so that each assembly forms a truncated vee. The center portions of the leaf springs are secured to a transducer bridge (25) in which transducer (59) is mounted. The ends of the leaf springs are secured in a bracket (11) with respect to which the transducer (59) pivots about an axis located at the intersection of converging lines along the leaf springs (39a, 39b, 41a, 41b) of each leaf spring assembly (39, 41).

公开(公告)号：WO1985005228A1

公开(公告)日：1985-11-21

申请号：PCT/US1984001377

申请日：1984-08-27

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  HUDSPETH, Thomas ,  ROSS, Barry, S.

IPC: H01P01/12

CPC classification number: H01P1/125

Abstract: A switch (11) for a square coaxial network includes a lower housing (13), a rotor assembly (21), alternative transmission lines (19), and an upper housing (15) with a main transmission line (17). The rotor assembly includes a rotor (23) for selectively coupling the main transmission line to a selected alternative transmission line. The rotor is coadapted with each transmission line for resonant coupling therewith. A conductive shield (29) rotates with the rotor and isolates it from the unselected alternative transmission lines. A low-friction dielectric guide (25) helps provide proper spacing and coupling of the rotor and the square center conductor (35) of the selected alternative transmission line. A low-friction dielectric bushing (27) serves a similar function for the rotor and the center conductor (33) of the main transmission line.

公开(公告)号：WO1985005194A1

公开(公告)日：1985-11-21

申请号：PCT/US1984001365

申请日：1984-08-27

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  BRAULT, Robert, G.

IPC: G03F07/02

CPC classification number: G03F7/095 ,  G03F7/039 ,  G03F7/11 ,  Y10S430/136

Abstract: Method of pretreating a semiconductor wafer so that a solution coating of a positive resist of poly(methacrylic anhydride) can be directly applied to the treated surface. A typical semiconductor wafer of silicon is first precoated with a thin layer of poly(t-butyl methacrylate) and then heated to convert the poly(t-butyl methacrylate) to the anhydride. The thickness of this anhydride-precursor layer is less than about 1,000 Angstroms. Next, there is applied to the surface of the precursor layer a solution of the poly(methacrylic anhydride) disolved in, for example, dimethylacetamide, dimethylformamide, or N-methyl-pyrrolidione. Such solvents, which are not capable of adequately wetting the silicon surface directly, are capable of wetting the precursor layer comprising poly(methacrylic anhydride), thus ensuring a uniform deposit of poly(methacrylic anhydride) upon the treated surface of the wafer. After the solution has been applied to the treated wafer, the solvent is removed by evaporation to form a uniform solution-deposited poly(methacrylic anhydride) layer having a thickness which ranges from about 2,000 Angstroms to about 20,000 Angstroms.

Abstract translation: 对半导体晶片进行预处理以使得可以将直接施加到处理过的表面上的聚（甲基丙烯酸酐）的正性抗蚀剂的溶液涂布的方法。 硅的典型半导体晶片首先用聚（甲基丙烯酸叔丁酯）薄层预涂，然后加热以将聚（甲基丙烯酸叔丁酯）转化成酸酐。 该酸酐前体层的厚度小于约1,000埃。 接着，在前体层的表面涂布溶解在例如二甲基乙酰胺，二甲基甲酰胺或N-甲基 - 吡咯烷酮中的聚（甲基丙烯酸酐）溶液。 不能直接使硅表面充分润湿的这些溶剂能够润湿包含聚（甲基丙烯酸酐）的前体层，从而确保聚（甲基丙烯酸酐）在经处理的晶片表面上的均匀沉积。 在将溶液施加到经处理的晶片之后，通过蒸发除去溶剂，以形成均匀的溶液沉积的聚（甲基丙烯酸酐）层，其厚度范围为约2000埃至约20,000埃。

公开(公告)号：WO1985005188A1

公开(公告)日：1985-11-21

申请号：PCT/US1985000773

申请日：1985-04-26

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  WILEY, Carl, A. ,  EDELSOHN, Charles, R.

IPC: G01R29/08

CPC classification number: G01K11/006

Abstract: A microwave radiometer reconstructs images by fanbeam inversion. True time delay (100), frequency (600, 700) and mechanical scanning systems (200) are disclosed. The mechanically scanning radiometer includes a fanbeam antenna (210) to scan a scene so that the antenna output is a projection of the scene taken along the direction of scan. The mechanical scanning motion is provided by a rocking motor (254) controlled by a computer (214). Projections are obtained for successive orientations as the antenna is rotated by another motor (212). By application of an inverse Radon transform, the scene scanned is reconstructed by the computer. In one frequency scanning system (600), a filter bank spectrometer is implemented to obain the projections, and in the other frequency scanning system (700), a transform spectrometer implemented. In the delay scanning system (100), a beam forming computer is used in the reconstruction process. A modification of the Radon transform is disclosed which compensates for the conicity of electronically scanning fanbeams.

Abstract translation: 微波辐射计通过扇形反射重建图像。 公开真实的时间延迟（100），频率（600,700）和机械扫描系统（200）。 机械扫描辐射计包括用于扫描场景的扇形波束天线（210），使得天线输出是沿着扫描方向拍摄的场景的投影。 机械扫描运动由由计算机（214）控制的摇摆马达（254）提供。 当天线由另一个电动机（212）旋转时，为连续取向获得投影。 通过应用逆Radon变换，扫描的场景由计算机重建。 在一个频率扫描系统（600）中，实现滤波器组光谱仪以获得投影，并且在另一个频率扫描系统（700）中，实现了变换光谱仪。 在延迟扫描系统（100）中，在重建过程中使用波束形成计算机。 公开了Radon变换的修改，其补偿电子扫描扇形束的锥度。

公开(公告)号：WO1985005134A1

公开(公告)日：1985-11-21

申请号：PCT/US1985000623

申请日：1985-04-10

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  SASHITAL, Sanat, K.

IPC: C30B19/02

CPC classification number: G02F1/0018 ,  C30B9/00 ,  C30B19/02 ,  C30B29/46

Abstract: A multilayer electro-optical material having a plurality of adjacent, single crystals of varying electro-optical properties. This material is made by a method wherein the successive layers are epitaxially grown from a molten solution of said electro-optical material optionally containing at least one dopant. In one embodiment, such electro-optic material comprises silver thiogallate, wherein successive epitaxial layers are grown from a molten solution of silver thiogallate and potassium chloride, and which optionally includes at least one dopant. This molten solution exhibits the characteristic that, for any specific solution composition, layers having different electro-optical properties can be obtained by cooling over the temperature range which will yield crystal growth of the composition corresponding to the desired electro-optical properties. By taking advantage of this temperature/composition phase precipitation, multi-layers are formed by cooling first within one temperature range to form on the seed crystal substrate a layer of silver thiogallate including the dopant and then subsequently forming on this first layer a second layer of different composition varying from substantially pure silver thiogallate to silver thiogallate including at least one dopant, by cooling witin a different temperature range. By successively alternating between cooling over these different temperature ranges, multiple layers are formed with adjacent layers having different electro-optical properties. The multi-layered structures produced by the above method can be utilized in electro-optical devices, and particularly as the tunable birefringent medium in tunable electro-optic filters.

Abstract translation: 具有多个具有不同电光特性的相邻单晶的多层电光材料。 这种材料是通过一种方法制成的，其中连续的层由任选地含有至少一种掺杂剂的所述电光材料的熔融溶液外延生长。 在一个实施方案中，这种电光材料包含硫代镓酸银，其中连续的外延层从硫代镓酸银和氯化钾的熔融溶液生长，并且任选地包括至少一种掺杂剂。 该熔融溶液具有以下特征：对于任何特定的溶液组成，可以通过在相应于所需电光性质的组合物的结晶生长的温度范围内冷却来获得具有不同电光特性的层。 通过利用这种温度/组成相析出，通过首先在一个温度范围内冷却形成多层，以在晶种衬底上形成包含该掺杂剂的一层银硫代镓酸盐，然后在该第一层上形成第二层 通过在不同的温度范围内冷却，不同的组成从基本上纯的硫代镓酸银变化成包括至少一种掺杂剂的硫代镓酸银。 通过在这些不同温度范围内连续交替冷却，形成具有不同电光特性的相邻层的多层。 通过上述方法制造的多层结构可用于电光装置，特别是可调电光滤波器中的可调双折射介质。

公开(公告)号：WO1985005113A1

公开(公告)日：1985-11-21

申请号：PCT/US1985000625

申请日：1985-04-09

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  DuPONT, Preston, S. ,  FREEMAN, Janet, E. ,  RITTER, Robert, E. ,  WITTMANN, Alois ,  OLDHAM, Susan, L.

IPC: C08J09/32

CPC classification number: H01Q15/14 ,  C08J9/32 ,  H05K1/0313 ,  H05K1/0373

Abstract: Fiber-reinforced syntactic foam composites having a low specific gravity and a low coefficient of thermal expansion suitable for forming lightweight structures for spacecraft applications are prepared from a mixture of a heat curable thermosetting resin, hollow microspheres having a diameter of about 5 to 200 micrometers and fibers having a length less than or equal to 250 micrometers.

Abstract translation: 具有低比重和低热膨胀系数的纤维增强复合泡沫复合材料适用于形成用于航天器应用的轻型结构，由热固化热固性树脂，直径约5至200微米的中空微球和 长度小于或等于250微米的纤维。

公开(公告)号：WO1985004287A1

公开(公告)日：1985-09-26

申请号：PCT/US1985000316

申请日：1985-02-28

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  LIM, Hong, S.

IPC: H01M10/34

CPC classification number: F28F3/12 ,  F28F3/083 ,  H01M10/0418 ,  H01M10/345 ,  H01M10/613 ,  H01M10/654 ,  H01M10/6557

Abstract: A nickel-hydrogen bipolar battery (10) comprises a plurality of unit cells (30) organized in assemblies wherein the assemblies are stacked and positioned within a hydrogen space. Each unit cell (11, 12, 13) includes a porous hydrogen electrode (40) loaded on its lower surface with a platinum catalyst layer (41). Adjacent the platinum loaded lower surface of the porous hydrogen electrode lies a separator (42). A nickel electrode (44) lies against the separator opposite the surface adjacent to the platinum loaded surface. One or more openings through the nickel electrode and separator cooperate to permit oxygen gas, generated at the nickel electrode, to reach to the hydrogen electrode of the same unit cell. Recombination of hydrogen gas and oxygen gas occurs at the hydrogen electrode platinum catalyst layer. The assembly provides serial connection of the unit cells through conductive end plates (36, 38) for axial current flow through the assembly stack.

公开(公告)号：WO1985003013A1

公开(公告)日：1985-07-18

申请号：PCT/US1984000537

申请日：1984-04-09

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  SHERWOOD, Charles, H.

IPC: B01D39/14

CPC classification number: B01J20/28033 ,  B01D39/083 ,  B01D39/086 ,  B01D39/1623 ,  B01D2239/0407 ,  B01D2239/064 ,  B01D2239/1241 ,  B01J20/28004 ,  B01J20/28028 ,  B60H1/00414 ,  B60H3/0658 ,  D04H13/00 ,  Y10S428/902 ,  Y10T428/249985 ,  Y10T428/249986 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/259 ,  Y10T428/2927 ,  Y10T428/30 ,  Y10T442/642 ,  Y10T442/69 ,  Y10T442/699

Abstract: A flexible, air permeable composite effective as a highly absorbent fiber filter, suitable for high throughput, low pressure drop applications. The composites and filters use a non-woven fabric substrate formed of randomly oriented fibers (22), in combination with organic polymer fibers (24), such as polypropylene fibers, formed in-situ from a solvent solution of the polymer, with solid particles (26) such as carbon particles interstitially positioned within the mass, and forming a unique microstructure by the interaction of the flexible non-woven fibers (22) and the polymer fibers (24). In such a composite, a high level of small sorptive particles may be incorporated, to provide increased sorptive capacity in the fiber filter. A method of forming such filters is also provided.

公开(公告)号：WO1985002954A1

公开(公告)日：1985-07-04

申请号：PCT/US1984001013

申请日：1984-06-27

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  EISENHART, Robert, L.

IPC: H03B09/14

CPC classification number: H03B9/143

Abstract: A solid state microwave power combiner (32) having a central combining cavity (30) with a plurality of coaxial oscillator circuits (34, 36) disposed about and coupled to the cavity (30). The oscillator circuits (34, 36) are oriented such that their longitudinal axes are parallel with the central axis of the combining cavity (30). They alternate in configuration about the cavity such that adjacent oscillator circuits have their power generating diodes (42, 44) located on opposite sides of the cavity (30). In one embodiment, the coaxial lines used in the oscillator circuits have two parts (54, 56) (58, 60) of different sizes. The oscillator circuits are oriented about the cavity (30) so that the smaller sized coaxial line part of one is adjacent the larger sized coaxial line part of the next. Both rectangular (30) and circular (16) combining cavities are disclosed.

公开(公告)号：WO1985002720A1

公开(公告)日：1985-06-20

申请号：PCT/US1984001036

申请日：1984-06-29

Applicant: HUGHES AIRCRAFT COMPANY

Inventor： HUGHES AIRCRAFT COMPANY ,  TSUDA, George, I.

IPC: H01Q03/08

CPC classification number: H01Q3/08

Abstract: A low profile, mechanical scan antenna (10) having an aperture assembly and a travel guide assembly. The aperture assembly (14) is mounted on a carriage (26) for movement along the travel guide assembly (28) which is rotatably mounted (24) for rotation about an azimuth axis. The travel guide assembly includes an arcuately shaped track and the aperture assembly and carriage move along the inside of the arcuately shaped track through the scanning angle. The arcuately shaped track defines an effective antenna gimbal axis which is in front of the antenna aperture.