GB1342069A - Electrically conductive components - Google Patents
Electrically conductive componentsInfo
- Publication number
- GB1342069A GB1342069A GB5956770A GB1342069DA GB1342069A GB 1342069 A GB1342069 A GB 1342069A GB 5956770 A GB5956770 A GB 5956770A GB 1342069D A GB1342069D A GB 1342069DA GB 1342069 A GB1342069 A GB 1342069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photoresist
- etched
- foil
- component
- nickel
- 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
- 229920002120 photoresistant polymer Polymers 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000011888 foil Substances 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- -1 potassium ferricyanide Chemical compound 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/22—Heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/14—Incandescent bodies characterised by the shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
- Weting (AREA)
- ing And Chemical Polishing (AREA)
Abstract
1342069 Etching THORN ELECTRICAL INDUSTRIES Ltd 15 Dec 1970 59567/70 Heading B6J [Also in Divisions H1 and H5] In a method of making an electrically conductive component for an electrical device, e.g. filaments for incandescent lamps, discharge tubes, thermionic valves or heaters, a part of a rectangular cross-sectional metal foil sheet or ribbon, having etch resistant material on both faces thereof disposed in a pattern corresponding to the required component, is etched away chemically or electrocnemically, the etch resistant material is removed and the component is bent into a more compact form than its original form. The metal may be tantalum, molybdenum, tungsten or a nickel-chrome or nickel-iron alloy, chemically etched in an aqueous solution of potassium ferricyanide and sodium hydroxide at 70 C. The foil is initially degreased, photoresist applied and then exposed by ultra-violet rich light through twin photographically produced masks, one on each face, representing the required filament shape. The photoresist is then developed, the foil etched and the photoresist scrubbed off to leave the rectangular cross-sectional filament which is then bent into a compact element. A mask other than photoresist may be used. A preliminary etch may be used to determine crystal structure for producing filaments with a particular crystal structure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5956770 | 1970-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1342069A true GB1342069A (en) | 1973-12-25 |
Family
ID=10484012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5956770A Expired GB1342069A (en) | 1970-12-15 | 1970-12-15 | Electrically conductive components |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3788721A (en) |
| CA (1) | CA949664A (en) |
| GB (1) | GB1342069A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2461195A1 (en) * | 1979-07-07 | 1981-01-30 | Bosch Gmbh Robert | LIGHTING HEAD-CODE FOR MOTOR VEHICLES |
| DE3204425A1 (en) * | 1982-02-09 | 1983-08-25 | Siemens AG, 1000 Berlin und 8000 München | METHOD FOR PRODUCING SUPPORTING METAL GRID STRUCTURES |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7607038A (en) * | 1976-06-28 | 1977-12-30 | Philips Nv | ELECTRIC LIGHT BULB. |
| US4598226A (en) * | 1984-12-17 | 1986-07-01 | Clegg John E | Concave conical foil-filament lamp |
| US4585971A (en) * | 1984-12-18 | 1986-04-29 | Clegg John E | Flat circular foil-filament lamp |
| DE4310106C1 (en) * | 1993-03-27 | 1994-10-06 | Bruker Saxonia Analytik Gmbh | Manufacturing process for switching grids of an ion mobility spectrometer and switching grids manufactured according to the process |
| US5956003A (en) * | 1996-07-24 | 1999-09-21 | Hypres, Inc. | Flat panel display with array of micromachined incandescent lamps |
| JP2000507039A (en) * | 1997-01-15 | 2000-06-06 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Incandescent lamp |
| US6259193B1 (en) * | 1998-06-08 | 2001-07-10 | General Electric Company | Emissive filament and support structure |
| DE19843853A1 (en) * | 1998-09-24 | 2000-03-30 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electric light bulb |
| ATE343850T1 (en) | 1999-08-22 | 2006-11-15 | Ip2H Ag | LIGHT SOURCE WITH INDIRECTLY HEATED FILAMENT |
| EP1104006A3 (en) | 1999-11-23 | 2001-10-04 | Koninklijke Philips Electronics N.V. | Flat lamp |
| US7191787B1 (en) | 2003-02-03 | 2007-03-20 | Lam Research Corporation | Method and apparatus for semiconductor wafer cleaning using high-frequency acoustic energy with supercritical fluid |
| US7237564B1 (en) * | 2003-02-20 | 2007-07-03 | Lam Research Corporation | Distribution of energy in a high frequency resonating wafer processing system |
| US20040247980A1 (en) * | 2003-06-03 | 2004-12-09 | Christopher Beatty | Structurally yieldable fuel cell seal |
| FR2863769B1 (en) * | 2003-12-12 | 2006-03-24 | Ge Med Sys Global Tech Co Llc | METHOD FOR MANUFACTURING CATHODE FILAMENT OF X-RAY TUBE AND X-RAY TUBE |
| CN101477897B (en) | 2009-01-20 | 2012-05-23 | 宁夏东方钽业股份有限公司 | Tantalum wire for anode lead of tantalum capacitor and manufacturing method thereof |
| US8248202B2 (en) * | 2009-03-19 | 2012-08-21 | Vishay Dale Electronics, Inc. | Metal strip resistor for mitigating effects of thermal EMF |
| DE102012205715B4 (en) * | 2012-04-05 | 2024-11-28 | Siemens Healthineers Ag | Electron emitter for an X-ray tube and X-ray tube with such an electron emitter |
| TWI663609B (en) * | 2018-11-26 | 2019-06-21 | 致茂電子股份有限公司 | Resistor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2773239A (en) * | 1956-12-04 | Electrical indicating instruments | ||
| US1013157A (en) * | 1909-05-01 | 1912-01-02 | Westinghouse Electric & Mfg Co | Resistance or heating element. |
| US1674488A (en) * | 1922-12-20 | 1928-06-19 | Gen Electric | Electric heating unit |
| US1697607A (en) * | 1926-10-11 | 1929-01-01 | Burdick Corp | Therapeutic-lamp unit |
| BE498448A (en) * | 1949-10-04 | |||
| US2666254A (en) * | 1949-10-04 | 1954-01-19 | Hermoplast Ltd | Method of manufacturing electrical windings |
| US2655582A (en) * | 1952-02-01 | 1953-10-13 | Mepco Inc | Noninductive electrical resistor |
| US3089106A (en) * | 1960-08-15 | 1963-05-07 | Wheelock Signals Inc | Printed circuit coil |
| US3216089A (en) * | 1961-10-23 | 1965-11-09 | Lockheed Aircraft Corp | Method of connecting electrical components to spaced frame containing circuits and removing the frames |
-
1970
- 1970-12-15 GB GB5956770A patent/GB1342069A/en not_active Expired
-
1971
- 1971-07-26 US US00165516A patent/US3788721A/en not_active Expired - Lifetime
- 1971-07-26 CA CA119,063A patent/CA949664A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2461195A1 (en) * | 1979-07-07 | 1981-01-30 | Bosch Gmbh Robert | LIGHTING HEAD-CODE FOR MOTOR VEHICLES |
| DE3204425A1 (en) * | 1982-02-09 | 1983-08-25 | Siemens AG, 1000 Berlin und 8000 München | METHOD FOR PRODUCING SUPPORTING METAL GRID STRUCTURES |
Also Published As
| Publication number | Publication date |
|---|---|
| US3788721A (en) | 1974-01-29 |
| CA949664A (en) | 1974-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |