Multi-component material for uncooled thermal imaging and graphical method for the determination thereof
    51.
    发明授权
    Multi-component material for uncooled thermal imaging and graphical method for the determination thereof 失效
    用于非冷却热成像的多组分材料和用于确定其的图形方法

    公开(公告)号:US06534429B1

    公开(公告)日:2003-03-18

    申请号:US09528956

    申请日:2000-03-20

    申请人: David A. Jackson

    发明人: David A. Jackson

    IPC分类号: C04B35474

    摘要: A multi-component material is represented by the general formula (I): Ba(1−y−y)PbyMxTiO3  (I) in which: M is Sr or Cd; x is the decimal fraction molar concentration of MTiO3, where x has a value equal to or greater than about 0.20 and less than or equal to about 0.75; and y is the decimal fraction molar concentration of PbTiO3, where y has a value greater than zero and less than or equal to about 0.40, and x+y is less than 1.0. In addition, a method of graphically estimating the composition of the multi-component material represented by the general formula (I) is disclosed herein. In a preferred embodiment, x has a value between about 0.28 and 0.66, and y has value greater than zero and less than or equal to about 0.34, while said material has a Curie point temperature of about 25° C. or room temperature. These room temperature Curie point materials are useful in uncooled thermal imaging applications.

    摘要翻译: 多组分材料由通式(I)表示:其中:M是Sr或Cd; x是MTiO 3的小数摩尔浓度,其中x具有等于或大于约0.20并且小于或等于或大于或等于 等于约0.75; andy是PbTiO3的小数分数摩尔浓度,其中y具有大于零且小于或等于约0.40的值,x + y小于1.0。 此外,公开了以通式(I)表示的多组分材料的组成的图形估计方法。 在优选的实施方案中,x具有约0.28至0.66之间的值,并且y具有大于零且小于或等于约0.34的值,而所述材料的居里点温度为约25℃或室温。 这些室温居里点材料可用于非冷却热成像应用。

    Thermally stable, piezoelectric and pyroelectric polymeric substrates and method relating thereto
    52.
    发明授权
    Thermally stable, piezoelectric and pyroelectric polymeric substrates and method relating thereto 失效
    热稳定的压电和热电聚合物基材及其相关的方法

    公开(公告)号:US06379809B1

    公开(公告)日:2002-04-30

    申请号:US09135888

    申请日:1998-08-18

    IPC分类号: H01L4104

    摘要: A thermally stable, piezoelectric and pyroelectric polymeric substrate was prepared. This thermally stable, piezoelectric and pyroelectric polymeric substrate may be used to prepare electromechanical transducers, thermomechanical transducers, accelerometers, acoustic sensors, infrared sensors, pressure sensors, vibration sensors, impact sensors, in-situ temperature sensors, in-situ stress/strain sensors, micro actuators, switches, adjustable fresnel lenses, speakers, tactile sensors, weather sensors, micro positioners, ultrasonic devices, power generators, tunable reflectors, microphones, and hydrophones. The process for preparing these polymeric substrates includes: providing a polymeric substrate having a softening temperature greater than 100° C.; depositing a metal electrode material onto the polymer film; attaching a plurality of electrical leads to the metal electrode coated polymeric substrate; heating the metal electrode coated polymeric substrate in a low dielectric medium; applying a voltage to the heated metal electrode coated polymeric substrate to induce polarization; and cooling the polarized metal electrode coated polymeric electrode while maintaining a constant voltage.

    摘要翻译: 制备了热稳定的压电和热电聚合物基材。 这种热稳定的压电和热电聚合物基材可用于制备机电换能器,热机械换能器,加速度计,声传感器,红外传感器,压力传感器,振动传感器,冲击传感器,原位温度传感器,原位应力/应变传感器 微型致动器,开关,可调节菲涅尔透镜,扬声器,触觉传感器,气象传感器,微型定位器,超声波设备,发电机,可调谐反射器,麦克风和水听器。 制备这些聚合物基材的方法包括:提供软化温度大于100℃的聚合物基材; 将金属电极材料沉积到聚合物膜上; 将多个电引线附接到涂覆有金属电极的聚合物基底上; 在低电介质介质中加热金属电极涂覆的聚合物基材; 向加热的金属电极涂覆的聚合物基底施加电压以引起极化; 并且在保持恒定电压的同时冷却极化金属电极涂覆的聚合物电极。

    Ferroelectric thin film and method of manufacturing the same
    53.
    发明授权
    Ferroelectric thin film and method of manufacturing the same 失效
    铁电薄膜及其制造方法

    公开(公告)号:US5717157A

    公开(公告)日:1998-02-10

    申请号:US351216

    申请日:1994-11-30

    摘要: A ferroelectric thin film includes lead titanate including La and at least an element which forms a six-coordinate bond with oxygen atoms and which is selected from the group consisting of Mg and Mn. The ferroelectric thin film is imparted with a high c-axis orientation while the film is formed without a polarization process. The ferroelectric thin film is manufactured by the steps of: positioning a MgO single crystal substrate disposed in advance with a foundation platinum electrode by a sputtering method on the surface of a substrate heater, exhausting a chamber, heating the substrate by a substrate heater, letting in sputtering gases Ar and O.sub.2 through a nozzle into the chamber, and maintaining a high degree of vacuum. Then, high frequency electric power is input to a target from a high frequency electric power source to generate plasma, and a film is formed on the substrate. In this way, a ferroelectric thin film containing, for example, �(1-x).multidot.Pb.sub.1-y La.sub.y Ti.sub.1-y/4 O.sub.3 +x.multidot.MgO!, where x=0.01.about.0.10 and y=0.05.about.0.25 can be manufactured.

    摘要翻译: 铁电薄膜包括包含La的钛酸铅和至少与氧原子形成六配位键的元素,并且选自Mg和Mn。 铁电薄膜在没有极化过程的情况下形成膜时赋予高c轴取向。 铁电薄膜通过以下步骤制造:通过溅射法将预先设置有基底铂电极的MgO单晶基板定位在基板加热器的表面上,排出室,通过基板加热器加热基板,使 在通过喷嘴将气体Ar和O2溅射到室中,并保持高度的真空度。 然后,将高频电力从高频电源输入到目标物,产生等离子体,在基板上形成膜。 以这种方式,可以制造含有例如[(1-x)xPb1-yLayTi1-y / 4O3 + xxMgO]的铁电薄膜,其中x = 0.01DIFFERENCE 0.10和y = 0.05DIFFERENCE 0.25。

    Method and apparatus for fabrication of dielectric thin film
    54.
    发明授权
    Method and apparatus for fabrication of dielectric thin film 失效
    电介质薄膜的制造方法和装置

    公开(公告)号:US5674366A

    公开(公告)日:1997-10-07

    申请号:US483873

    申请日:1995-06-07

    摘要: A method whereby perovskite type oxide dielectric thin films with ABO.sub.3 structure are able to be formed with such features as good stability, uniformity, reproducibility, or the like, with high through-put by having a deposition process, wherein the thin films are deposited on a substrate, and a stabilization process, where no deposition of the thin films takes place, repeated alternatingly while the substrate temperature being kept near the temperature at which perovskite type oxide dielectric thin films are formed. Also, by employing (i) a processing method wherein a decomposing excitation of a reactive gas due to plasma takes place on or near the deposition surface in a gaseous atmosphere comprising a gas that reacts with the elements composing the thin films, (ii) a processing method wherein an oxidation reaction takes place on the deposition surface in a gaseous atmosphere comprising at least ozone (O.sub.3), and (iii) a processing method wherein light of short wave length is irradiated on the deposition surface in a gaseous atmosphere comprising at least reactive elements in the non-deposition process, the oxygen concentration in the deposited thin films is adjusted and dielectric thin films of good quality and an extremely low defect content are realized.

    摘要翻译: 具有ABO3结构的钙钛矿型氧化物电介质薄膜能够通过具有沉积工艺的高通量形成具有良好的稳定性,均匀性,再现性等特性的方法,其中薄膜沉积在 基板和稳定化处理,其中不存在薄膜的沉积,在衬底温度保持接近形成钙钛矿型氧化物电介质薄膜的温度的同时交替重复。 此外,通过采用以下处理方法:(i)在包含与组成薄膜的元素反应的气体的气体气氛中,在等离子体发生的反应性气体的分解激发发生在沉积表面上或其附近的处理方法,(ii) 处理方法,其中在至少包含臭氧(O 3)的气体气氛中在沉积表面上发生氧化反应,和(iii)其中在至少包括至少包含臭氧(O 3)的气体气氛中在沉积表面上照射短波长的光的处理方法 在非沉积工艺中的非活性元素,沉积的薄膜中的氧浓度被调节,并且实现了良好质量和极低缺陷含量的介电薄膜。

    Radiation detector having a pyroelectric ceramic detection element
    55.
    发明授权
    Radiation detector having a pyroelectric ceramic detection element 失效
    具有热电陶瓷检测元件的辐射检测器

    公开(公告)号:US5440125A

    公开(公告)日:1995-08-08

    申请号:US264229

    申请日:1994-06-23

    CPC分类号: H01L37/025 C04B35/472

    摘要: A radiation detector having a radiation detection element of a pyroelectric ceramic material on the basis of lead titanate, the composition of which corresponds to the formula Pb.sub.1-(x+0.5(x-y)) RE.sub.x (Ti.sub.1-y Mn.sub.y)O.sub.3, where RE is at least one rare earth metal and 0.04.ltoreq.x.ltoreq.0.20 and 0.01.ltoreq.y.ltoreq.0.04. The element is disposed within a windowed housing.

    摘要翻译: 一种辐射检测器,其具有基于钛酸铅的热电陶瓷材料的放射线检测元件,其组成对应于式Pb1-(x + 0.5(xy))REx(Ti1-yMny)O3,其中RE处于 至少一种稀土金属,0.04≤x≤0.20和0.01≤y≤0.04。 该元件设置在窗户壳体内。

    Process for producing a ferroelectric film device
    56.
    发明授权
    Process for producing a ferroelectric film device 失效
    铁电薄膜器件的制造方法

    公开(公告)号:US5308462A

    公开(公告)日:1994-05-03

    申请号:US938676

    申请日:1992-09-01

    摘要: For applying ferroelectrics to electronic devices, the poling treatment of the ferroelectrics has been necessary in order to uniform directions of spontaneous polarizations, Ps, in each ferroelectric. This treatment brings about (1) low yields of the devices, (2) difficulties in the fabrication of array devices, and (3) difficulties in the formation of ferroelectric films on semiconductor devices. Now it has been found that a self-polarized film in which spontaneous polarizations, Ps, are unidirectional can be formed by sputtering a ferroelectric materials containing lead under such conditions that the orientation of Ps will be controlled without poling treatment and a high-performance ferroelectric device can be obtained in a high yield by using this film, and thus a process for producing such devices has been found.

    摘要翻译: 为了将铁电体应用于电子器件,铁电体的极化处理是必要的,以便在每个铁电体中均匀自发极化的方向Ps。 这种处理带来(1)器件的低产量,(2)阵列器件的制造困难,(3)在半导体器件上形成铁电薄膜的困难。 现在已经发现,通过溅射含铅的铁电材料可以在这样的条件下形成其中自发极化Ps是单向的自偏振膜,即在不经极化处理的情况下控制Ps的取向和高性能的铁电体 可以通过使用该膜获得高产率的装置,因此已经发现了用于制造这种装置的方法。

    Pyroelectric and isotropic piezoelectric polymer blends
    60.
    发明授权
    Pyroelectric and isotropic piezoelectric polymer blends 失效
    热电和各向同性压电聚合物共混物

    公开(公告)号:US4615848A

    公开(公告)日:1986-10-07

    申请号:US702023

    申请日:1985-02-15

    CPC分类号: H01L37/025 H01L41/45

    摘要: A pyroelectric and isotropic piezoelectric polymeric film, the film being formed from a blend of polyvinylidene fluoride and at least one polymer miscible therewith at a temperature above the melting point of the polyvinylidene fluoride, and a process for preparing the film comprising forming the film, heating it to a temperature sufficient to render the film substantially amorphous, cooling at a rate and to a temperature sufficient to prevent crystallization, and polarizing the film to render same pyroelectric and isotropically piezoelectric.

    摘要翻译: 一种热电性和各向同性的压电聚合物膜,该膜由聚偏二氟乙烯和至少一种与聚偏二氟乙烯的熔点以上的温度混合的聚合物的共混物形成,以及一种制备该膜的方法,包括形成该膜,加热 它达到足以使膜基本上无定形的温度,以足以防止结晶的速率和温度冷却,并且使膜偏振以形成相同的热电和各向同性地压电。