GB986024A - Methods of constructing an array of magnetic elements - Google Patents
Methods of constructing an array of magnetic elementsInfo
- Publication number
- GB986024A GB986024A GB4312762A GB4312762A GB986024A GB 986024 A GB986024 A GB 986024A GB 4312762 A GB4312762 A GB 4312762A GB 4312762 A GB4312762 A GB 4312762A GB 986024 A GB986024 A GB 986024A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductors
- ferrite
- sheets
- sheet
- sintering
- 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
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000004020 conductor Substances 0.000 abstract 11
- 229910000859 α-Fe Inorganic materials 0.000 abstract 10
- 238000005245 sintering Methods 0.000 abstract 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- 238000000151 deposition Methods 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000009713 electroplating Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 229910052703 rhodium Inorganic materials 0.000 abstract 1
- 239000010948 rhodium Substances 0.000 abstract 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000010345 tape casting Methods 0.000 abstract 1
- 238000001771 vacuum deposition Methods 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/06—Thin magnetic films, e.g. of one-domain structure characterised by the coupling or physical contact with connecting or interacting conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0311—Compounds
- H01F1/0313—Oxidic compounds
- H01F1/0315—Ferrites
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
986,024. Magnetic structures; printed circuits. RADIO CORPORATION OF AMERICA. Nov. 14, 1962 [Nov. 30, 1961], No. 43127/62. Headings H1H and H1R. [Also in Division H3] A magnetic storage array (see Division H3) is constructed by forming sheets of green ferrite by doctor blading a ferrite slurry on a support, drying and peeling off the resulting flexible sheets, depositing different patterns of conductors on to different surfaces of the sheets, assembling the sheets into a laminated stack, and applying heat to produce a sintered ferrite sheet having conductors embedded therein. The ferrite slurry comprises 65 parts (by weight) of a calcinated ferrite made of zinc, magnesium and manganese oxides, 13 parts of an organic binder and 52 parts of a methyl ethyl ketone solvent. Before sintering, the stack is formed into a laminated green ferrite sheet by applying pressure of about 900 lb. per square inch and heating for about 10 minutes at 120‹ C. A sintering temperature of about 1200‹ C. is used, the conductor being formed of higher melting point material such as palladium, rhodium or platinum so as to be unaffected by the sintering process. After sintering, the resulting sheet is air quenched at room temperature or annealed in nitrogen at 1100‹ C. for 1 hour. A typical arrangement of deposited conductors 12, 14, 18 and 22 on green ferrite sheets 16, 20, 26 is shown in Fig. 2, the upper conductors being covered by a plain green ferrite sheet 10. Other conductor dispositions are described, and in one embodiment conductors are deposited on opposite sides of a single sheet and only partially covered by using plain green ferrite strips, Figs. 7-9 (not shown). The conductors are formed by vacuum deposition through a mask, followed by electrolytic deposition to a substantial depth. To enable the conductors to withstand ferrite shrinkage during the sintering process, the conductors are formed with a coarse or spongy texture which is imparted by using a relatively high electroplating current such as 1 to 5 amperes per square foot of conductor surface.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15592661A | 1961-11-30 | 1961-11-30 | |
| US15592761A | 1961-11-30 | 1961-11-30 | |
| US15594461A | 1961-11-30 | 1961-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB986024A true GB986024A (en) | 1965-03-17 |
Family
ID=27387775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4312762A Expired GB986024A (en) | 1961-11-30 | 1962-11-14 | Methods of constructing an array of magnetic elements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB986024A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3312961A (en) * | 1963-08-22 | 1967-04-04 | Rca Corp | Coincident current magnetic plate memory |
| CN113444942A (en) * | 2021-06-28 | 2021-09-28 | 包头稀土研究院 | Ferromanganese-based magnetic composite material and design method and manufacturing method thereof |
-
1962
- 1962-11-14 GB GB4312762A patent/GB986024A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3312961A (en) * | 1963-08-22 | 1967-04-04 | Rca Corp | Coincident current magnetic plate memory |
| CN113444942A (en) * | 2021-06-28 | 2021-09-28 | 包头稀土研究院 | Ferromanganese-based magnetic composite material and design method and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IE36276B1 (en) | A method of forming electrodes and conductors and articles made thereby | |
| GB1060996A (en) | Method of making magnetic body with pattern of imbedded non-magnetic material | |
| US3099874A (en) | Method of manufacturing magnetic core matrices | |
| IT1007177B (en) | PROCEDURE FOR MAKING LAYER ELECTRIC CIRCUITS FITTED WITH ELECTROCONDUCTIVE LAYERS ON BOTH B AND THE FACES OF A CERAMIC MATERIAL SUBSTRATE | |
| GB986024A (en) | Methods of constructing an array of magnetic elements | |
| ES418427A1 (en) | Method of producing laminated magnetic material for magneticrecording head | |
| GB1276473A (en) | Method of fabricating high q circuits on ceramic substrates | |
| JPS6339958Y2 (en) | ||
| JPS56157011A (en) | Open-magnetic-circuit type laminated coil | |
| JPS5826680B2 (en) | Ceramic warm air conditioner | |
| JPS5681917A (en) | Laminating method of thin sheet | |
| JPS6145876B2 (en) | ||
| JPS57188105A (en) | Electret constituent | |
| EP0190888A3 (en) | Electrical component | |
| JPS57154812A (en) | Laminating method for thin plate | |
| JPS54146621A (en) | Film magnetic head | |
| JPS5362454A (en) | Direct heating type cathode construction | |
| GB1438559A (en) | Method for manufacturing a composite sintered structure | |
| ES441621A1 (en) | Solid-state capacitors | |
| JPS56120114A (en) | Inductance element & its manufacture | |
| JPS5582412A (en) | Layer-built transformer | |
| JPS648846A (en) | Manufacture of electrically insulated coil | |
| JPS54111649A (en) | Lighting arrester element | |
| JPS5446398A (en) | Manufacture of ceramic multilayered circuit base plate | |
| JPS5771111A (en) | Inductor and its manufacturing method |