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    Microelectromechanical shutters for organic vapor jet printing
    1.
    发明授权
    Microelectromechanical shutters for organic vapor jet printing 有权

    公开(公告)号：US11292245B2

    公开(公告)日：2022-04-05

    申请号：US16891864

    申请日：2020-06-03

    申请人： Trustees of Boston University ,  The Regents of the University of Michigan

    发明人： David J. Bishop ,  Lawrence Barrett ,  Stephen Forrest

    IPC分类号： B41J2/045 ,  C23C14/12 ,  C23C14/54 ,  B81B7/00 ,  B41J2/04

    摘要： A device includes a nozzle including a discharge end for discharging a fluid, a shutter plate including an aperture, the shutter plate positioned at the discharge end of the nozzle, a plurality of tethers coupled to the shutter plate, and a plurality of electrostatic actuators. Each of the plurality of electrostatic actuators are coupled to one or more of the plurality of tethers. The plurality of electrostatic actuators are configured to move the shutter plate between an open position and a closed position relative the discharge end of the nozzle. In the open position, the aperture is in fluid communication with the discharge end of the nozzle to permit fluid from the discharge end of the nozzle to flow through the aperture. In the closed position, at least a portion of the shutter plate inhibits fluid from the discharge end of the nozzle from flowing through the aperture.

    MICROELECTROMECHANICAL SHUTTERS FOR ORGANIC VAPOR JET PRINTING
    2.
    发明申请
    MICROELECTROMECHANICAL SHUTTERS FOR ORGANIC VAPOR JET PRINTING 有权

    公开(公告)号：US20210206162A1

    公开(公告)日：2021-07-08

    申请号：US16891864

    申请日：2020-06-03

    申请人： Trustees of Boston University ,  The Regents of the University of Michigan

    发明人： David J. Bishop ,  Lawrence Barrett ,  Stephen Forrest

    IPC分类号： B41J2/045 ,  B81B7/00 ,  C23C14/54 ,  C23C14/12

    摘要： A device includes a nozzle including a discharge end for discharging a fluid, a shutter plate including an aperture, the shutter plate positioned at the discharge end of the nozzle, a plurality of tethers coupled to the shutter plate, and a plurality of electrostatic actuators. Each of the plurality of electrostatic actuators are coupled to one or more of the plurality of tethers. The plurality of electrostatic actuators are configured to move the shutter plate between an open position and a closed position relative the discharge end of the nozzle. In the open position, the aperture is in fluid communication with the discharge end of the nozzle to permit fluid from the discharge end of the nozzle to flow through the aperture. In the closed position, at least a portion of the shutter plate inhibits fluid from the discharge end of the nozzle from flowing through the aperture.

    OVJP PATTERNING OF ELECTRONIC DEVICES
    6.
    发明申请
    OVJP PATTERNING OF ELECTRONIC DEVICES 审中-公开
    电子设备的OVJP图案

    公开(公告)号：US20140127845A1

    公开(公告)日：2014-05-08

    申请号：US14064687

    申请日：2013-10-28

    申请人： The Regents of the University of Michigan

    发明人： Stephen Forrest ,  Gregory McGraw

    IPC分类号： H01L51/56

    CPC分类号： H01L51/56 ,  H01L27/3283 ,  H01L51/0004

    摘要： A method for forming an electronic device such as a passive color OLED display. Bottom electrodes are patterned onto a substrate in rows. Raised posts formed by photoresist are patterned into columns oriented orthogonally to the bottom row electrodes. One or more organic layers, such as R, G, B organic emissive layers are patterned over the raised posts and bottom electrodes using organic vapor jet printing (OVJP). An upper electrode layer is applied over the entire device and forms electrically isolated columnar electrodes due to discontinuities in the upper electrode layer created by the raised columnar posts. This permits patterning of the upper electrodes over the organic layers without using photolithography. A device formed by this method is also described.

    摘要翻译： 一种用于形成诸如无源彩色OLED显示器的电子设备的方法。 底部电极按行排列在基板上。 由光致抗蚀剂形成的凸起柱被图案化成与底部行电极正交定向的列。 使用有机蒸气喷射印刷（OVJP）将一个或多个有机层，例如R，G，B有机发光层图案化在凸起的柱和底部电极上。 在整个器件上施加上电极层，由于由凸起的柱状柱形成的上电极层中的不连续性，形成电隔离的柱状电极。 这允许在不使用光刻的情况下在有机层上图案化上电极。 还描述了通过该方法形成的装置。

    METHOD OF FORMING A SEMICONDUCTOR DEVICE
    7.
    发明申请
    METHOD OF FORMING A SEMICONDUCTOR DEVICE 审中-公开

    公开(公告)号：US20200168658A1

    公开(公告)日：2020-05-28

    申请号：US16564254

    申请日：2019-09-09

    申请人： The Regents of the University of Michigan

    发明人： Stephen Forrest ,  Xin Xu ,  Christopher Kyle Renshaw

    IPC分类号： H01L27/146 ,  H01L27/30 ,  H05K13/04 ,  H01L51/00 ,  H01L27/32

    摘要： Systems and methods including bonding two or more separately formed circuit layers are provided using, for example, cold welding techniques. Processing techniques may be provided for combining inorganic and/or organic semiconductor devices in apparatus including, for example, microchips, optoelectronic devices, such as solar cells, photodetectors and organic light emitting diodes (OLEDs), and other apparatus with multi-layer circuitry. Methods of bonding preformed circuit layers may include the use of stamping and pressure bonding contacts of two or more circuit layers together. Such methods may find applicability, for example, in bonding circuitry to shaped substrates, including various rounded and irregular shapes, and may be used to combine devices with different structural properties, e.g. from different materials systems.

    Organic Photovoltaic Device Having a Lateral Charge Transport Channel
    10.
    发明申请
    Organic Photovoltaic Device Having a Lateral Charge Transport Channel 审中-公开

    公开(公告)号：US20200235325A1

    公开(公告)日：2020-07-23

    申请号：US16722709

    申请日：2019-12-20

    申请人： The Regents of the University of Michigan

    发明人： Stephen Forrest ,  Quinn Burlingame ,  Caleb Coburn

    IPC分类号： H01L51/44 ,  H01L51/00

    摘要： Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the OPV or solar cell includes a first electrode (e.g., cathode); a second electrode (e.g., anode); an active layer positioned between the first electrode and the second electrode; and a channel layer positioned between the first electrode and the active layer, wherein the channel layer is configured to laterally disperse a charge across the channel layer. In certain examples, the first electrode is arranged in a grid structure having a plurality of electrode segments and a respective opening between adjacent segments of the first electrode.