Abstract:
An improved method of cleaning a glass substrate prior to evaporation of chrome metal electrodes upon it. The substrate is cleaned by the use of glow discharge in a wet active gas, preferably air or forming gas.
Abstract:
A target assembly for a storage/display deformographic tube comprising a Fabry-Perot type interference filter deposited on a dielectric target material. The filter comprises a deformographic film sandwiched between two mirrors, the inner dielectric mirror comprised of a quarter wavelength stack of alternating layers of materials with greatly differing indexes of refraction and the outer conducting mirror comprising a thin layer of appropriate metal such as silver. The deformographic film should be deposited in a layer which is an integral number of one-half wavelengths.
Abstract:
An intermediary gold layer is disposed between the deformographic material layer and conductive silver layer of a reflective deformographic target assembly used in a deformographic storage display tube. The gold layer inhibits the degradation of the reflecting characteristics of the target when it is subsequently subjected to high temperatures associated with the tube fabrication and assembly process.
Abstract:
The target of the information projection tube is made from a dielectric surface which provides a deforming mirror (36) and a transparent series of Fabry-Perot filters (22). A writing electron-gun (16) forms a charge on the target which deforms the mirror surface. A light source (60) is directed through an optical system into the target and, due to the interference action of the filters, creates a coloured pattern on an optical screen (74). An erase-gun (28) is also provided. The target can be made of alternate layers of zinc sulphide and cryolite with a mirror of deposited silver. This provides colour projection of the electron-gun information instead of the black and white display in previous tubes using Schlieren optics.
Abstract:
During the construction of display gas panels front and back panels are connected together by means of a seal which forms a chamber for receiving a display gas. A hole is provided in the back plate which is outside the display viewing area and a glass tube is fitted into this hole and sealed to the assembly. The tube is used to first evacuate and then admit display gas into the chamber. An electric tip-off oven is used to collapse the tube stem to form a permanent seal. A cast protective heat sink and a reflective foil wafer are used to protect the gas panel and the tube-to-gas panel interface from damage by the oven.
Abstract:
A high performance integrated circuit chip package includes a support substrate having conductors extending from one face to the opposite face thereof and a multilayer wiring substrate on the opposite face of the support substrate for connecting chips mounted thereon to one another and to the conductors. A heat sink includes microchannels at one face thereof, with thermally conductive cushions connecting the one face of the heat sink with the exposed back sides of the chips, to provide a high density chip package with high heat dissipation. The multilayer wiring substrate may be formed by a self-aligned thin film wiring method, with a self-aligned lift off method being employed to form internal wiring planes. The support substrate and heat sink may be formed of blocks of material having thermal expansion matching silicon. The cushions are a low melting point solder, preferably pure indium, and are sufficiently thick to absorb thermal stresses, but sufficiently thin to efficiently conduct heat from the chips to the heat sink.
Abstract:
A high performance integrated circuit chip package (10) includes a support (15) substrate (12) having conductors extending from one face to the opposite face thereof and a multilayer wiring substrate (16) on the opposite face of the support substrate for connecting chips mounted thereon to one another and to the conductors. A heat sink includes microchannels at one face thereof, with thermally conductive cushions connecting the one face of the heat sink (26) with the exposed back sides of the chips, to provide a high density chip package with high heat dissipation. The multilayer wiring substrate (16) may be formed by a self-aligned thin film wiring method, with a self-aligned lift off method being employed to form internal wiring planes. The support substrate and heat sink may be formed of blocks of material having thermal expansion matching silicon. The cushions are a low melting point solder, preferably pure indium, and are sufficiently thick to absorb thermal stresses, but sufficiently thin to efficiently conduct heat from the chips to the heat sink.
Abstract:
A water removable material ordinarily used as a brazing stop-off - i.e. to restrict the flow of a molten metal and thereby to prevent wetting of an underlying surface in a brazing or soldering process - has been found useful presently as a means to prevent oxidation of, or other damage to, terminal metallurgy of metallized glass components during protracted periods of baking, gas-filling and glass sealing processing incidental to fabrication of gas discharge display panel assemblies. The subject baking, gas-filling and sealing processing involves hours or even days of variant temperature treatment, which should be distinguished from seconds or at most minutes of brazing treatment. The protective function required of the water removable coating during this prolonged processing period is considered unique and eliminates certain application and removal process operations associated with the use of other protective media (e.g. sintered glass frit).
Abstract:
TFT LCD DEVICE HAVING COLOR FILTER LAYER DECAL Decal technology is employed to provide a color filter layer for a thin film transistor liquid crystal display device. The red/green/blue color regions and an opaque surround are printed on a suitable substrate using gravure printing techniques and colored glass frit materials. Once the printed decal is transferred to one of the glass panels, it can be heated to fuse it to the glass. Electrodes can be deposited directly on this fused color filter layer.
Abstract:
IMPROVED GAS PANEL SPACER TECHNOLOGY A gaseous discharge display and/or memory device comprises a pair of sealed glass plates having metallic conductor arrays formed thereon and insulated from contact with the gas by a dielectric layer. The crossover points of the conductors, which define the locations of the individual cells which cells are controlled by selective application of write, sustain, and erase signals. To permit uniform operation of individual cells, the plates must be maintained precisely spaced over their entire display surface. To effect this requirement in a large size panel, metallic spacers are secured to the upper surface of the conductors of the metallic conductor arrays prior to the formation of the dielectric layer, the size and number of these spacers being determined by the geometry and resolution of the gaseous discharge display device.