US3810686A - Method of fabricating a plasma charge transfer device - Google Patents

Method of fabricating a plasma charge transfer device Download PDF

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Publication number
US3810686A
US3810686A US00269802A US26980272A US3810686A US 3810686 A US3810686 A US 3810686A US 00269802 A US00269802 A US 00269802A US 26980272 A US26980272 A US 26980272A US 3810686 A US3810686 A US 3810686A
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United States
Prior art keywords
electrodes
charge transfer
transfer device
dielectric
forming
Prior art date
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Expired - Lifetime
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US00269802A
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English (en)
Inventor
W Coleman
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NCR Voyix Corp
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NCR Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NCR Corp filed Critical NCR Corp
Priority to US00269802A priority Critical patent/US3810686A/en
Priority to CA169,795A priority patent/CA976227A/en
Priority to AU55243/73A priority patent/AU462498B2/en
Priority to CH711473A priority patent/CH563662A5/xx
Priority to DE19732325318 priority patent/DE2325318A1/de
Priority to FR7318289A priority patent/FR2192370B1/fr
Priority to GB2414773A priority patent/GB1381075A/en
Priority to BE131372A priority patent/BE799855A/xx
Priority to JP48073228A priority patent/JPS4952966A/ja
Application granted granted Critical
Publication of US3810686A publication Critical patent/US3810686A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
    • G09G3/29—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels using self-shift panels with sequential transfer of the discharges from an input position to a further display position
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/20—Digital stores in which the information is moved stepwise, e.g. shift registers using discharge tubes
    • G11C19/205—Digital stores in which the information is moved stepwise, e.g. shift registers using discharge tubes with gas-filled tubes

Definitions

  • ABSTRACT The method of fabricating a plasma charge transfer device comprising forming electrodes on a pair of substrates and coating certain electrodes with a coating of dielectric material which forms the wall on which a charge is formed during the operation of the device, forming cavity material on the pairs of substrates to hold an ionizable medium to be activated by an electric pulse applied to the electrodes, and positioning and sealing the two pairs of substrates to enclose the cavity, and filling the cavity with the ionizable medium to form a complete plasma charge transfer device.
  • an ionizable gas is contained in an enclosure havinga plurality of transfer electrodes aligned parallel on opposite inside walls of the enclosure; the transfer electrodes being covered with a dielectric material and offset one another throughout its length.
  • the device is serially addressed by applying electrical pulses to an input electrode which can be either directly (uncoated) or capacitively (coated with a dielectric material) coupled to the gas and forming with the first or nearest of the offset transfer electrodes, the first gaseous cell in the device.
  • this gas By properly applying pulses to the electrodes, this gas will be caused to form gaseous discharges (plasma) which in turn form trapped charges on the dielectric coating on the electrodes, which trapped charges are utilized to transfer the plasma charge serially along channels formed in the enclosure, or held in place at any time by the proper application of alternating potential to any two oppositely adjacent electrode pairs.
  • plasma gaseous discharges
  • This plasma charge transfer phenomenon may be utilized to form either a shift register or a display device and bits of information or dots of light, depending on how the device is to be used, can be fed into the device by the proper application of input signals and when numerous channels are placed side by side a matrix can be formed to as to provide a display.
  • This invention teaches the method of fabricating a plasma charge transfer device as a panel utilizing the first of a pair of sheet or substrate dielectric material, usually a relatively thin flat, glass plate one-sixteenth to one-eighth inch, upon which are formed electrodes, as
  • Electrodes are then covered with a dielectric material which forms the walls on which the trapped charges resulting from the discharge of the ionizable medium are formed during the operation of the device. Over the electrodes and coating material still another material is placed as by silk screening to ultimately form an enclosure to contain the ionizable medium.
  • the foregoing step is repeated and after the two substrates are formed by the foregoing method, the substrates are aligned and sealed face to face with the substrates on the outside.
  • An exhaust port is then formed in one of the substrates to be utilized to exhaust the is placed therein, and the device is sealed.
  • FIG. 1 is an exploded view of the two halves of the plasma charge transfer device showing each of the elements as separate and planar for illustrative purposes;
  • FIGS. 2, 3, and 4 are cross-sectional views of the plasma charge transfer device in its final form as a panel.
  • FIG. 5 is a flow chart showing the steps in the method of fabricating the invention.
  • the plasma charge transferdevice as a panel, indicated in its entirety as 10, is formed into two halves on substrates 12 of suitable dielectric material such as glass, defining a pluraity of the channels 13 containing ionizable gas, such as neon and nitrogen, at a predetermined pressure.
  • ionizable gas such as neon and nitrogen
  • the plurality of electrodes 1-4 which may be transparent if desired, are located on the wall of the substrate opposite one another in parallel alignment in a laterally offset relationship to subject ionizable gas to an electric field when a suitable potential is applied to any two opposing electrodes.
  • each of the flat substrates along the outer edge thereof forming continuous conductors with the electrodes 1-4 shown as furcations extending laterally, and in this embodiment, two sheets of dielectric material 18 for coating the electrodes overlay the furcations.
  • the top sheet 12 of dielectric material is shown separately.
  • FIG. 3 and, as shown sandwiched between the two substrates 12, there are two flat sheets of opaque glass cavity forming material 12" which together with the substrates and the dielectric coating 18 form seven channels 13 more clearly shown in FIG. 1.
  • the two halves of the device are sandwiched together as a panel facing one another and aligned to form the channels but the two halves are offset lengthwise to another to conveniently expose the ends of the conductors 14. In addition, this offset also exposes seven input electrodes i and the seven erase electrodes e.
  • FIG. 1 shows the electrodes and dielectric coating material and channel or cavity forming material as separate sheets whereas, in fact, they are formed by the following method forming the present invention which will now be described in detail.
  • the substrate 12 is a flat sheet of glass preferably about one-eighth of an inch thick, and preferably a soda lime glass on which the electrode pattern is silk screened onto the substrate.
  • the material forming the electrodes 1-4 and conductors 14 in the practicable embodiment is a Silver Paste, Number 590, and sold by the Electro Science Company of Philadelphia, Pa. This is fired in a furnace and, being a paste of glass mixed with silver, when fired it becomes essentially glass but remains conductive since silver is dispersed within the glass. The firing also binds the glass to the substrate.
  • a tin oxide would be coated on the substrate, then a resist material of the electrode pattern would be placed on the tin oxide and the electrodes would then be etched in the conventional etching manner.
  • a glass paste is screened over certain of the electrodes to coat the same with coating 18 except the input electrode i and erase electrode e which will be DC coupled to the gas when the device is finally assembled.
  • the reason for leaving input electrode i uncoated is more fully explained in the Coleman and Kessler application supra.
  • One such material for this coating 18 is essentially 75 percent lead oxide glass; the remaining ingredients being boron oxide and aluminum oxide sold under the commercial name of Vitta 1001 by the Vitta Corporation of Wilton, Conn.
  • This coating material 18 is then fired to form a glass coating.
  • the next step is to silk screen the cavity material 12" with a crystallizing glass paste, such as 1014 also sold by Vitta Corporation, which when fired will turn opaque as compared to the vitreous glass paste 18 which covers the electrodes and which is essentially clear when fired. It has been found that the crystallizing material will hold its shape better and therefor form the cavities better.
  • a crystallizing glass paste such as 1014 also sold by Vitta Corporation
  • an aperture 30 is formed in a substrate and opening into the cavity to be utilized as an exhaust outlet once the two halves are formed.
  • the two halves are then faced front to front so that the electrodes 1-4 are staggered and the channels, the input anderase electrodes i and e are appropriately aligned.
  • a suitable exhaust tube is placed over the aperture 30 and sealed as before to the plate and the device is placed in a vacuum and checked for leaks. If there is no leak, it is placed in a baking oven to about 400 under a vacuum, so as to remove all water vapors and impurities and thereafter it is filled with ionizable medium and the exhaust tube is sealed off.
  • a method of fabricating a plasma charge transfer device comprising the steps of:

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Liquid Crystal (AREA)
US00269802A 1972-05-22 1972-07-07 Method of fabricating a plasma charge transfer device Expired - Lifetime US3810686A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US00269802A US3810686A (en) 1972-07-07 1972-07-07 Method of fabricating a plasma charge transfer device
CA169,795A CA976227A (en) 1972-07-07 1973-04-30 Method of fabricating a plasma charge transfer device
AU55243/73A AU462498B2 (en) 1972-05-22 1973-05-04 Gas discharge device
DE19732325318 DE2325318A1 (de) 1972-05-22 1973-05-18 Gasentladungsvorrichtung
CH711473A CH563662A5 (enrdf_load_stackoverflow) 1972-05-22 1973-05-18
FR7318289A FR2192370B1 (enrdf_load_stackoverflow) 1972-05-22 1973-05-21
GB2414773A GB1381075A (en) 1972-05-22 1973-05-21 Gas discharge apparatus
BE131372A BE799855A (fr) 1972-05-22 1973-05-22 Dispositif a decharge gazeuse,
JP48073228A JPS4952966A (enrdf_load_stackoverflow) 1972-07-07 1973-06-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00269802A US3810686A (en) 1972-07-07 1972-07-07 Method of fabricating a plasma charge transfer device

Publications (1)

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US3810686A true US3810686A (en) 1974-05-14

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US00269802A Expired - Lifetime US3810686A (en) 1972-05-22 1972-07-07 Method of fabricating a plasma charge transfer device

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US (1) US3810686A (enrdf_load_stackoverflow)
JP (1) JPS4952966A (enrdf_load_stackoverflow)
CA (1) CA976227A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108521A (en) * 1976-08-30 1978-08-22 Burroughs Corporation Method of making a display panel and the anodes therefor
US5276384A (en) * 1992-08-26 1994-01-04 Tektronix, Inc. Electrode configuration for channel confinement of plasma discharge in an electrode structure using an ionizable gaseous medium
RU2132582C1 (ru) * 1998-07-02 1999-06-27 Научно-исследовательский институт газоразрядных приборов Способ изготовления газоразрядной индикаторной панели переменного тока
US5940163A (en) * 1994-07-19 1999-08-17 Electro Plasma Inc. Photon coupled color flat panel display and method of manufacture
RU2138931C1 (ru) * 1998-10-09 1999-09-27 Закрытое акционерное общество Научно-технический центр "Модуль" Способ изготовления двусторонней печатной платы и двусторонняя печатная плата
RU2144238C1 (ru) * 1998-12-25 2000-01-10 Научно-исследовательский институт газоразрядных приборов Способ изготовления электродной системы газоразрядной индикаторной панели переменного тока
RU2158984C1 (ru) * 1999-12-07 2000-11-10 Научно-исследовательский институт газоразрядных приборов Способ формирования конструктивного элемента газоразрядной индикаторной панели
RU2233504C1 (ru) * 2003-02-06 2004-07-27 Открытое акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" Способ изготовления электродной системы газоразрядной индикаторной панели
RU2248062C2 (ru) * 2003-01-08 2005-03-10 Открытое акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" (ОАО "Плазма") Способ изготовления газоразрядной индикаторной панели переменного тока

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262900A (en) * 1963-12-19 1966-07-26 Schreiber Guldo Masking compositions for printed circuits
US3499167A (en) * 1967-11-24 1970-03-03 Owens Illinois Inc Gas discharge display memory device and method of operating
US3588571A (en) * 1967-07-07 1971-06-28 Sony Corp Gaseous glow indicator tube formed on a substrate with a plurality of insulating layers
US3701917A (en) * 1971-05-10 1972-10-31 Burroughs Corp Display panel having a plurality of arrays of gas-filled cells

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4895174A (enrdf_load_stackoverflow) * 1972-03-15 1973-12-06

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262900A (en) * 1963-12-19 1966-07-26 Schreiber Guldo Masking compositions for printed circuits
US3588571A (en) * 1967-07-07 1971-06-28 Sony Corp Gaseous glow indicator tube formed on a substrate with a plurality of insulating layers
US3499167A (en) * 1967-11-24 1970-03-03 Owens Illinois Inc Gas discharge display memory device and method of operating
US3701917A (en) * 1971-05-10 1972-10-31 Burroughs Corp Display panel having a plurality of arrays of gas-filled cells

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108521A (en) * 1976-08-30 1978-08-22 Burroughs Corporation Method of making a display panel and the anodes therefor
US5276384A (en) * 1992-08-26 1994-01-04 Tektronix, Inc. Electrode configuration for channel confinement of plasma discharge in an electrode structure using an ionizable gaseous medium
US5940163A (en) * 1994-07-19 1999-08-17 Electro Plasma Inc. Photon coupled color flat panel display and method of manufacture
RU2132582C1 (ru) * 1998-07-02 1999-06-27 Научно-исследовательский институт газоразрядных приборов Способ изготовления газоразрядной индикаторной панели переменного тока
RU2138931C1 (ru) * 1998-10-09 1999-09-27 Закрытое акционерное общество Научно-технический центр "Модуль" Способ изготовления двусторонней печатной платы и двусторонняя печатная плата
RU2144238C1 (ru) * 1998-12-25 2000-01-10 Научно-исследовательский институт газоразрядных приборов Способ изготовления электродной системы газоразрядной индикаторной панели переменного тока
RU2158984C1 (ru) * 1999-12-07 2000-11-10 Научно-исследовательский институт газоразрядных приборов Способ формирования конструктивного элемента газоразрядной индикаторной панели
RU2248062C2 (ru) * 2003-01-08 2005-03-10 Открытое акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" (ОАО "Плазма") Способ изготовления газоразрядной индикаторной панели переменного тока
RU2233504C1 (ru) * 2003-02-06 2004-07-27 Открытое акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" Способ изготовления электродной системы газоразрядной индикаторной панели

Also Published As

Publication number Publication date
JPS4952966A (enrdf_load_stackoverflow) 1974-05-23
CA976227A (en) 1975-10-14

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