GB1324416A - Electric memory or storage device - Google Patents

Electric memory or storage device

Info

Publication number
GB1324416A
GB1324416A GB4014570A GB4014570A GB1324416A GB 1324416 A GB1324416 A GB 1324416A GB 4014570 A GB4014570 A GB 4014570A GB 4014570 A GB4014570 A GB 4014570A GB 1324416 A GB1324416 A GB 1324416A
Authority
GB
United Kingdom
Prior art keywords
resin
chlorinated
voltage
current
electrodes
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4014570A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1324416A publication Critical patent/GB1324416A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C13/00Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/0002Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
    • G11C13/0009RRAM elements whose operation depends upon chemical change
    • G11C13/0014RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C13/00Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/0002Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
    • G11C13/0009RRAM elements whose operation depends upon chemical change
    • G11C13/0014RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material
    • G11C13/0016RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material comprising polymers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20Conductive material dispersed in non-conductive organic material
    • H01B1/22Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20Conductive material dispersed in non-conductive organic material
    • H01B1/24Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N70/00Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
    • H10N70/011Manufacture or treatment of multistable switching devices
    • H10N70/021Formation of switching materials, e.g. deposition of layers
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N70/00Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
    • H10N70/20Multistable switching devices, e.g. memristors
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N70/00Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
    • H10N70/801Constructional details of multistable switching devices
    • H10N70/821Device geometry
    • H10N70/823Device geometry adapted for essentially horizontal current flow, e.g. bridge type devices
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N70/00Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
    • H10N70/801Constructional details of multistable switching devices
    • H10N70/821Device geometry
    • H10N70/826Device geometry adapted for essentially vertical current flow, e.g. sandwich or pillar type devices
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N70/00Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
    • H10N70/801Constructional details of multistable switching devices
    • H10N70/881Switching materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Nanotechnology (AREA)
  • Mathematical Physics (AREA)
  • Electromagnetism (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Conductive Materials (AREA)
  • Adjustable Resistors (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Thermistors And Varistors (AREA)

Abstract

1324416 Semi-conductor devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 20 Aug 1970 [21 Aug 1969] 40145/70 Heading H1K An electric memory or storage device comprises a disc body of resin having electrodes on opposite or the same surface (Figs. 1, 2, not shown) comprising finely divided conductive particles dispersed in the resin. On application of increasing voltage to the electrodes the device exhibits high resistance and current increases ohmically to point 30 (Fig. 3) and further voltage increase shifts the working point to 40 from which current again increases ohmically, and the device exhibits low resistance until voltage reaches point 50, after which further increase in voltage shifts the working point to 60 on a further ohmic characteristic, along which voltage and current may be reduced to zero; the device remaining in this "memory" state for successive cycles of increasing and decreasing voltage and current until restored to its high resistance state by heating to a temperature exceeding the glass transition temperature of the resin. The device is responsive to pulse voltages, and the resin contains chlorine or bromine atoms. Preferred mixtures are: polyethylene, polystyrene, polymethyl methacrylate, polyacetal, polycarbonate, polyamide, polyester, phenol formaldehyde, epoxy resin silicone resin, alkyd resin, polysulphide resin, polyphenylene oxide resin, admixed with low M.W. chloro or bromo compounds such as chlorinated paraffins, chlorinated fatty esters, chlorinated fatty alcohols, chlorinated fatty amines, chlorinated amides, 1,2,3-tribromopropane, 1,2-dibromochloropropane, 1,2,3,4-tetrabromobutane, 1,2- dibromo - 1,1,2,2 - tetrachloroethane, tris - (2- chloroethyl) phosphate, perchloro-pentacyclodecane. Alternatively, the resin may be a chlorine or bromine containing vinyl polymer such as polyvinyl chloride, polyvinylidene chloride, polyvinyl bromide, poly-p-chlorostyrene, or a chloro-substituted polyolefine such as chlorinated polyethylene, chlorinated polypropylene; or chlorine or bromine containing epoxy resins; or chlorinated natural rubber; and the finely divided particles may be of silver, iron, copper, carbon black, or graphite. The body is formed by solution of resin in a suitable medium, introduction of the finely divided particles, mixing in a ball mill to a paint applied to an electrode substrate, evaporation of solvent, and imposition of a further electrode by vacuum deposition of e.g. aluminium, or by conductive ink. Alternatively the solvent is heat evaporated from the paint to form a film on which electrodes are similarly imposed. Specification 1,324,417 is referred to.
GB4014570A 1969-08-21 1970-08-20 Electric memory or storage device Expired GB1324416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44066982A JPS492950B1 (en) 1969-08-21 1969-08-21

Publications (1)

Publication Number Publication Date
GB1324416A true GB1324416A (en) 1973-07-25

Family

ID=13331720

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4014670A Expired GB1324417A (en) 1969-08-21 1970-08-20 Process of switching electrical current
GB4014570A Expired GB1324416A (en) 1969-08-21 1970-08-20 Electric memory or storage device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4014670A Expired GB1324417A (en) 1969-08-21 1970-08-20 Process of switching electrical current

Country Status (5)

Country Link
JP (1) JPS492950B1 (en)
DE (2) DE2042099C3 (en)
FR (2) FR2063139B1 (en)
GB (2) GB1324417A (en)
NL (2) NL151539B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362308A1 (en) * 1988-01-11 1990-04-11 Electromer Corporation Overvoltage protection device and material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795843A (en) * 1972-02-25 1973-08-23 Storry Smithson & Co Ltd IMPROVEMENTS RELATING TO A CATHODIC PROTECTION SYSTEM
CH557081A (en) * 1972-12-22 1974-12-13 Ibm BISTABLE RESISTANCE WITH CONDITIONS INDEPENDENT OF THE EXTERNAL ENERGY SUPPLY.
DE3245589A1 (en) * 1982-12-09 1984-06-14 Hoechst Ag, 6230 Frankfurt UNCROSSLINKABLE, ELECTRICALLY CONDUCTIVE MOLDING MATERIALS BASED ON THERMOPLASTIC PLASTICS AND CARBON
US4992333A (en) * 1988-11-18 1991-02-12 G&H Technology, Inc. Electrical overstress pulse protection
JP2005516378A (en) * 2001-06-20 2005-06-02 シタラ リミティド Thin planar switch and its application

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359521A (en) * 1965-10-26 1967-12-19 Cognitronics Corp Bistable resistance memory device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362308A1 (en) * 1988-01-11 1990-04-11 Electromer Corporation Overvoltage protection device and material
EP0362308A4 (en) * 1988-01-11 1991-09-04 Karen P. Shrier Overvoltage protection device and material

Also Published As

Publication number Publication date
NL151538B (en) 1976-11-15
NL7012435A (en) 1971-02-23
DE2042111A1 (en) 1971-04-22
FR2063139A1 (en) 1971-07-09
NL151539B (en) 1976-11-15
DE2042099A1 (en) 1971-05-13
FR2058109A5 (en) 1971-05-21
FR2063139B1 (en) 1974-06-14
DE2042111B2 (en) 1972-07-20
NL7012436A (en) 1971-02-23
JPS492950B1 (en) 1974-01-23
DE2042111C3 (en) 1975-05-22
GB1324417A (en) 1973-07-25
DE2042099C3 (en) 1975-01-02
DE2042099B2 (en) 1974-05-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years