Fine fabrication process using radiation sensitive resist
    1.
    发明授权
    Fine fabrication process using radiation sensitive resist 失效
    使用辐射敏感抗蚀剂的精细制造工艺

    公开(公告)号:US4367281A

    公开(公告)日:1983-01-04

    申请号:US289281

    申请日:1981-08-03

    IPC分类号: G03F7/038 G03C5/00

    CPC分类号: G03F7/038

    摘要: A fine work process comprises forming a thin film made of a radiation sensitive polymer on a board; irradiating radiation; developing and etching the product. The radiation sensitive polymer comprises at least 10 wt. % of a polymer having repeat units: ##STR1## wherein R and R' respectively represent hydrogen atom or an alkyl group and n is an integer of number of substituent groups.

    摘要翻译: 精细加工工艺包括在板上形成由辐射敏感聚合物制成的薄膜; 照射辐射; 开发和蚀刻产品。 辐射敏感聚合物包含至少10wt。 %的具有重复单元的聚合物:其中R和R'分别表示氢原子或烷基,n是取代基数的整数。

    Functional electrode
    2.
    发明授权
    Functional electrode 失效
    功能电极

    公开(公告)号:US4451348A

    公开(公告)日:1984-05-29

    申请号:US456790

    申请日:1983-01-10

    CPC分类号: G01N27/30 Y10S348/902

    摘要: A functional electrode is disclosed which is usable as an electrochromic display electrode, as a catalytic electrode effective to catalyze the evolution of oxygen and chlorine gases and the like. The electrode is composed of a conductor and a film deposited on the surface of the conductor, the film being comprised of a compound of the formula M.sup.I M(III)[M'(II)(CN).sub.6 ] or M(III).sub.4 [M'(II)(CN).sub.6 ].sub.3 wherein M(III) is Fe(III), Ru(III) or Os(III), M'(II) is FE(II), Ru(II) or Os(II) and M.sup.I is an alkali metal cation, with the proviso that said compound does not contain both Fe(III) and Fe(II). The functional electrode is produced by electrodepositing a compound of the formula M.sup.I M(III)[M'(II)(CN.sub.6)] or M(III).sub.4 [M'(II)(CN).sub.6 ].sub.3 on a conductor, from an aqueous solution containing M(III) ions and [M'(III)(CN).sub.6 ].sup.3- ions, wherein M(III), M'(II) and M.sup.I are as already defined and M'(III) is Fe(III), Ru(III) or Os(III), with the proviso that the aqueous solution does not contain both FE(III) and [Fe(III)(CN).sub.6 ].sup.3- ions and the deposited compound does not contain both Fe(III) and Fe(II).

    摘要翻译: 公开了可用作电致变色显示电极的功能电极,作为有效催化氧气和氯气等的发生的催化电极。 该电极由导体和沉积在导体表面上的膜组成,该膜由式MIM(III)[M'(II)(CN)6]或M(III)4 [ M(II)(CN)6] 3其中M(III)是Fe(III),Ru(III)或Os(III),M'(II)是FE(II) II),MI是碱金属阳离子,条件是所述化合物不含Fe(III)和Fe(II)。 功能电极通过在导体上电沉积式MIM(III)[M'(II)(CN6)]或M(III)4 [M'(II)(CN)6] 3的化合物从 含有M(III)离子和[M'(III)(CN)6] 3-离子的水溶液,其中M(III),M'(II)和MI如上所定义,M'(III) III),Ru(III)或Os(III),条件是水溶液不含有FE(III)和[Fe(III)(CN)6] 3-离子,沉积的化合物不含有 Fe(III)和Fe(II)。

    Pattern formation with negative type resist
    3.
    发明授权
    Pattern formation with negative type resist 失效
    带负型抗蚀剂的图案形成

    公开(公告)号:US4442199A

    公开(公告)日:1984-04-10

    申请号:US520761

    申请日:1983-08-08

    IPC分类号: G03F7/004 G03F7/038 G03C5/00

    CPC分类号: G03F7/038

    摘要: A pattern formation with a negative type resist comprises forming a thin film made of a resist on a board and irradiating light or radiation; developing and etching the product. The resist is a diene polymer obtained by a living polymerization in the presence of an organometallic compound or a cyclic polymer thereof.

    摘要翻译: 具有负型抗蚀剂的图案形成包括在基板上形成由抗蚀剂制成的薄膜并照射光或辐射; 开发和蚀刻产品。 抗蚀剂是在有机金属化合物或其环状聚合物的存在下通过活性聚合获得的二烯聚合物。

    Elastic surface wave transducer
    4.
    发明授权
    Elastic surface wave transducer 失效
    弹性表面波传感器

    公开(公告)号:US3936679A

    公开(公告)日:1976-02-03

    申请号:US500697

    申请日:1974-08-26

    IPC分类号: H03H3/08 H03H9/145 H01L41/08

    CPC分类号: H03H9/14517

    摘要: An interdigital transducer used in an elastic surface wave device and including a pair of electrodes each having a common electrode and a plurality of electrode fingers connected to the common electrode, the overlap lengths of electrode fingers being uniform throughout the transducer. Floating electrodes, each having two parallel conductors connected together at one end, are disposed between the interdigital electrode fingers of the paired electrodes to weight the excitation electric field strength.This invention relates to an elastic surface wave transducer.BACKGROUND OF THE INVENTIONAn elastic surface wave device (also referred to as an acoustic surface wave device) used in the VHF band and UHF band as a filter or delay line already known to those skilled in the art. An elastic surface wave device has transmitting and receiving interdigital transducers disposed on a piezoelectric substrate. These transducers are used to convert electrical signals into elastic surface waves or vice versa.A known transducer used in an elastic surface wave device is of the uniform overlap length interdigital type comprising first and second electrodes disposed on a substrate of piezoelectric material, each of the first and second electrodes having a common electrode connected to an external terminal and a plurality of electrode fingers connected to the common electrode, the overlap lengths of the electrode fingers of the first and second electrodes being uniform throughout the transducer.However, the above-mentioned prior art uniform overlap length interdigital transducer has unsatisfactory frequency characteristics. Further, such transducer has a passband width bearing a substantially inverse proportion to the number of electrode fingers.In Proc. IEEE, Vol. 59, No. 3, p.393, March (1971) is set forth a weighting transducer with a so-called "apodized electrode" arrangement for improving the frequency response of the transducer. With this apodized type weighting transducer, the overlap lengths of the electrode fingers are made to vary in proportion to a weighting function, causing the widths of excited elastic surface wave beams to be weighted in proportion to the weighting function. Though a weighting function with respect to the frequency transmitting property of an ideal filter is sin x/x, a practically used function is, for example ##EQU1## APPROXIMATING THE FUNCTION SIN X /X.When the apodized transducers are used as input and output transducers, it is impossible to obtain the product property of the transfer functions of both transducers. For a prominent guaranteed attenuation in the stop band, however, the product property should be attained. Following is the reason why apodised type weighting transducers used as input and output transducers can not provide a desired product of transfer functions. The electrode fingers of the output transducer overlapping each other over a small length can not fully pick up an elastic surface wave having a larger beam width from the input transducer, failing to produce an output signal proportional to the weight of the beam width.To obtain, therefore, the product of transfer functions, an apodized type weighting transducer is combined with a uniform overlap length type transducer. In this case, the electrodes of the apodized type weighting transducer should be made more precisely than in the case with two weighting transducers in order to attain a prominent guaranteed attenuation in the stop band. However, this is difficult to realize.It is accordingly an object of this invention to provide a weighting transducer, which, combined with any other type of transducer, can easily realize the product property of the transfer functions of both transducers.Another object of the invention is to provide a uniform overlap length interdigital transducer with an improved frequency response.SUMMARY OF THE INVENTIONA uniform overlap length type interdigital weighting transducer of this invention is characterized in that a plurality of floating electrodes each having a pair of parallel conductors connected together at one end are disposed on a piezoelectric substrate between the adjacent interdigital electrode fingers of the first and second electrodes. The parallel conductors preferably extend along the entire overlap length of the interdigital electrode fingers of the first and second electrodes. A plurality of the above-mentioned floating electrodes arranged between pairs of interdigital electrode fingers in numbers progressively increasing from the center of the transducer to both ends thereof along the propagation axis of the elastic surface wave can weight the strength of an excitation electric field in proportion to a weighting function.When combined with any other type of transducer, the weighting transducer of this invention which has the electrode fingers overlapped by each other in the uniform length throughout the transducer, can easily realize the product property of the transfer functions of both transducers.Further, the rejection of the side lobe of the weighting transducer of this invention can be easily improved to a larger extent than 10 dB as compared with the ordinary uniform overlap length type transducer.

    摘要翻译: 一种用于弹性表面波装置并且包括一对电极的叉指换能器,每对电极具有公共电极和连接到公共电极的多个电极指,电极指的重叠长度在整个换能器中是均匀的。 每个具有两端的两个平行导体连接在一起的浮动电极被设置在一对电极的叉指间电极指之间,以增加激励电场强度。

    Electrochromic display devices using iron(III) hexacyanoferrate(II) salt
    6.
    发明授权
    Electrochromic display devices using iron(III) hexacyanoferrate(II) salt 失效
    使用六氰基铁酸铁(II)盐的电致变色显示装置

    公开(公告)号:US4498739A

    公开(公告)日:1985-02-12

    申请号:US381800

    申请日:1982-05-25

    摘要: An electrochromic display device comprises an electrolyte contained between a pair of spaced-apart substrates. A set of electrodes are disposed on at least one of the substrates in contact with the electrolyte and a layer of electrochromic material is disposed on at least one of the electrodes to define a display electrode. The electrochromic material comprises a color-reversible salt of iron(III) hexacyanoferrate(II) which, depending on its oxidation-reduction state, exhibits different colors. A source of electric charge is connected through circuitry to effect reversible electrochemical oxidation and reduction of the salt of iron(III) hexacyanoferrate(II) to effect a corresponding reversible color change exhibited by the display electrode.

    摘要翻译: 电致变色显示装置包括包含在一对间隔开的衬底之间的电解质。 一组电极设置在与电解质接触的至少一个基板上,并且电致变色材料层设置在至少一个电极上以限定显示电极。 电致变色材料包括六氰基铁酸盐(II)的可彩色的可逆盐,其根据其氧化还原状态显示不同的颜色。 通过电路连接电荷源,以实现可逆电化学氧化和还原铁(III)六氰基铁酸盐(II)的盐,以实现由显示电极显示的相应的可逆变色。

    LiNbO.sub.3 saw device
    7.
    发明授权
    LiNbO.sub.3 saw device 失效
    LiNbO {HD 3 {B锯设备

    公开(公告)号:US4019074A

    公开(公告)日:1977-04-19

    申请号:US618339

    申请日:1975-10-01

    CPC分类号: H01L41/18 H01L41/1873

    摘要: An electro-mechanical transducer comprises a LiNbO.sub.3 -piezoelectric substrate containing as an impurity at least one material selected from the group consisting of Ta, Ta.sub.2 O.sub.5, Pd, SiO.sub.2, TiO.sub.2, V.sub.2 O.sub.5 and V, and at least two electro-mechanical transducing interdigital electrode pairs, provided on said LiNbO.sub.3 -piezoelectric substrate.

    摘要翻译: 机电换能器包括含有选自Ta,Ta 2 O 5,Pd,SiO 2,TiO 2,V 2 O 5和V中的至少一种材料作为杂质的LiNbO 3压电基片,以及至少两个机电转换叉指电极对 ,设置在所述LiNbO3-压电基板上。