SE7900625L - Halvledaranordning och forfarande for dess tillverkning samt pick-up-anordning och atergivningsanordning innefattande halvledaranordningen - Google Patents
Halvledaranordning och forfarande for dess tillverkning samt pick-up-anordning och atergivningsanordning innefattande halvledaranordningenInfo
- Publication number
- SE7900625L SE7900625L SE7900625A SE7900625A SE7900625L SE 7900625 L SE7900625 L SE 7900625L SE 7900625 A SE7900625 A SE 7900625A SE 7900625 A SE7900625 A SE 7900625A SE 7900625 L SE7900625 L SE 7900625L
- Authority
- SE
- Sweden
- Prior art keywords
- semiconductor device
- pick
- manufacture
- procedure
- reproduction
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
- H01J37/317—Electron-beam or ion-beam tubes for localised treatment of objects for changing properties of the objects or for applying thin layers thereon, e.g. for ion implantation
- H01J37/3174—Particle-beam lithography, e.g. electron beam lithography
- H01J37/3175—Projection methods, i.e. transfer substantially complete pattern to substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
- H01J1/30—Cold cathodes, e.g. field-emissive cathode
- H01J1/308—Semiconductor cathodes, e.g. cathodes with PN junction layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/30—Electron or ion beam tubes for processing objects
- H01J2237/317—Processing objects on a microscale
- H01J2237/3175—Lithography
- H01J2237/31777—Lithography by projection
- H01J2237/31781—Lithography by projection from patterned cold cathode
- H01J2237/31784—Semiconductor cathode
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Cold Cathode And The Manufacture (AREA)
- Electron Beam Exposure (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Electron Sources, Ion Sources (AREA)
- Semiconductor Memories (AREA)
- Bipolar Transistors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7800987,A NL184549C (nl) | 1978-01-27 | 1978-01-27 | Halfgeleiderinrichting voor het opwekken van een elektronenstroom en weergeefinrichting voorzien van een dergelijke halfgeleiderinrichting. |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7900625L true SE7900625L (sv) | 1979-07-28 |
SE438572B SE438572B (sv) | 1985-04-22 |
Family
ID=19830234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7900625A SE438572B (sv) | 1978-01-27 | 1979-01-24 | Halvledaranordning for alstring av ett elektronflode, forfarande for tillverkning av halvledaranordningen, samt bildatergivningsanordning der den bildalstrande elektronstralen er alstrad medelst halvledaranordningen |
Country Status (14)
Country | Link |
---|---|
US (3) | US4259678A (sv) |
JP (4) | JPS54111272A (sv) |
AT (1) | AT375782B (sv) |
AU (1) | AU521540B2 (sv) |
BE (1) | BE873713A (sv) |
CA (1) | CA1131795A (sv) |
CH (1) | CH640979A5 (sv) |
DE (1) | DE2902746C2 (sv) |
ES (1) | ES477148A1 (sv) |
FR (1) | FR2415879A1 (sv) |
GB (2) | GB2068169B (sv) |
IT (1) | IT1110930B (sv) |
NL (1) | NL184549C (sv) |
SE (1) | SE438572B (sv) |
Families Citing this family (74)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL184549C (nl) * | 1978-01-27 | 1989-08-16 | Philips Nv | Halfgeleiderinrichting voor het opwekken van een elektronenstroom en weergeefinrichting voorzien van een dergelijke halfgeleiderinrichting. |
NL184589C (nl) * | 1979-07-13 | 1989-09-01 | Philips Nv | Halfgeleiderinrichting voor het opwekken van een elektronenbundel en werkwijze voor het vervaardigen van een dergelijke halfgeleiderinrichting. |
JPS5925387B2 (ja) * | 1980-06-10 | 1984-06-16 | 株式会社東芝 | 半導体装置 |
US4683399A (en) * | 1981-06-29 | 1987-07-28 | Rockwell International Corporation | Silicon vacuum electron devices |
NL8104893A (nl) * | 1981-10-29 | 1983-05-16 | Philips Nv | Kathodestraalbuis en halfgeleiderinrichting voor toepassing in een dergelijke kathodestraalbuis. |
GB2109159B (en) * | 1981-11-06 | 1985-05-30 | Philips Electronic Associated | Semiconductor electron source for display tubes and other equipment |
GB2109160B (en) * | 1981-11-06 | 1985-05-30 | Philips Electronic Associated | Semiconductor electron source for display tubes and other equipment |
NL8200875A (nl) * | 1982-03-04 | 1983-10-03 | Philips Nv | Inrichting voor het opnemen of weergeven van beelden en halfgeleiderinrichting voor toepassing in een dergelijke inrichting. |
GB2146168A (en) * | 1983-09-05 | 1985-04-11 | Philips Electronic Associated | Electron image projector |
GB2147141A (en) * | 1983-09-26 | 1985-05-01 | Philips Electronic Associated | Electron image projector |
NL8403537A (nl) * | 1984-11-21 | 1986-06-16 | Philips Nv | Kathodestraalbuis met ionenval. |
DE3538175C2 (de) * | 1984-11-21 | 1996-06-05 | Philips Electronics Nv | Halbleiteranordnung zum Erzeugen eines Elektronenstromes und ihre Verwendung |
NL8403613A (nl) * | 1984-11-28 | 1986-06-16 | Philips Nv | Elektronenbundelinrichting en halfgeleiderinrichting voor een dergelijke inrichting. |
NL8500413A (nl) * | 1985-02-14 | 1986-09-01 | Philips Nv | Electronenbundelapparaat met een halfgeleider electronenemitter. |
CN86105432A (zh) * | 1985-09-27 | 1987-05-27 | 美国电话电报公司 | 带电粒子束曝光 |
US4742234A (en) * | 1985-09-27 | 1988-05-03 | American Telephone And Telegraph Company, At&T Bell Laboratories | Charged-particle-beam lithography |
GB2183899A (en) * | 1985-11-29 | 1987-06-10 | Philips Electronic Associated | Electron beam addressed memory |
US4763043A (en) * | 1985-12-23 | 1988-08-09 | Raytheon Company | P-N junction semiconductor secondary emission cathode and tube |
JPS62155517A (ja) * | 1985-12-27 | 1987-07-10 | Canon Inc | パターン描画装置及び方法 |
GB8601421D0 (en) * | 1986-01-21 | 1986-02-26 | Welding Inst | Charged particle beam generator |
FR2595162B1 (fr) * | 1986-02-28 | 1988-05-06 | Labo Electronique Physique | Dispositif d'enregistrement et de restitution de signaux electriques muni d'un predeclenchement, comprenant un dispositif a transfert de charges et oscilloscope utilisant un tel dispositif |
NL8600675A (nl) * | 1986-03-17 | 1987-10-16 | Philips Nv | Halfgeleiderinrichting voor het opwekken van een elektronenstroom. |
DE3712473A1 (de) * | 1986-04-14 | 1987-10-15 | Canon Kk | Bildaufzeichnungs- und/oder bildwiedergabeeinrichtung |
US5025196A (en) * | 1986-06-02 | 1991-06-18 | Canon Kabushiki Kaisha | Image forming device with beam current control |
JPS62284590A (ja) * | 1986-06-02 | 1987-12-10 | Canon Inc | 画像形成装置 |
US4858062A (en) * | 1986-06-04 | 1989-08-15 | Canon Kabushiki Kaisha | Charging device |
JPH0715603B2 (ja) * | 1986-06-04 | 1995-02-22 | キヤノン株式会社 | 帯電方法 |
US5691608A (en) * | 1986-06-16 | 1997-11-25 | Canon Kabushiki Kaisha | Image display apparatus |
US4906894A (en) * | 1986-06-19 | 1990-03-06 | Canon Kabushiki Kaisha | Photoelectron beam converting device and method of driving the same |
DE3788318T2 (de) * | 1986-06-23 | 1994-06-16 | Canon Kk | Verfahren und Anordnung zur Datenübertragung unter Verwendung eines Elektronenstrahls. |
JPS6312517A (ja) * | 1986-07-02 | 1988-01-19 | Hitachi Ltd | 部品の位置決め機構 |
US4857799A (en) * | 1986-07-30 | 1989-08-15 | Sri International | Matrix-addressed flat panel display |
JPS6334847A (ja) * | 1986-07-30 | 1988-02-15 | Canon Inc | 発光装置 |
JPH0821313B2 (ja) * | 1986-08-12 | 1996-03-04 | キヤノン株式会社 | 固体電子ビ−ム発生装置 |
US5270990A (en) * | 1986-08-15 | 1993-12-14 | Canon Kabushiki Kaisha | Tracking error signal detecting apparatus using an electron beam and apparatus for effecting recording/reproduction of information by the utilization of a plurality of electron beams |
EP0257489A1 (en) * | 1986-08-15 | 1988-03-02 | Canon Kabushiki Kaisha | Method for generating a sound wave by utilizing electron rays etc., and optical device for controlling a light by an elastic wave generated by said method |
US4958104A (en) * | 1986-08-20 | 1990-09-18 | Canon Kabushiki Kaisha | Display device having first and second cold cathodes |
JPS6351035A (ja) * | 1986-08-20 | 1988-03-04 | Canon Inc | 蓄積型画像表示装置 |
JP2601464B2 (ja) * | 1986-12-16 | 1997-04-16 | キヤノン株式会社 | 電子放出素子 |
JPS63105437A (ja) * | 1986-10-22 | 1988-05-10 | Canon Inc | 画像形成装置 |
NL8700486A (nl) * | 1987-02-27 | 1988-09-16 | Philips Nv | Weergeefinrichting. |
JPS63269529A (ja) * | 1987-04-28 | 1988-11-07 | Canon Inc | 荷電ビ−ム装置 |
EP0289279B1 (en) * | 1987-04-28 | 1994-08-10 | Canon Kabushiki Kaisha | A multi-electron-beam pattern drawing apparatus |
JPS63269445A (ja) * | 1987-04-28 | 1988-11-07 | Canon Inc | 電子ビーム発生素子 |
JP2599591B2 (ja) * | 1987-04-28 | 1997-04-09 | キヤノン株式会社 | 電子放出素子特性測定装置 |
USRE40062E1 (en) * | 1987-07-15 | 2008-02-12 | Canon Kabushiki Kaisha | Display device with electron-emitting device with electron-emitting region insulated from electrodes |
DE3853744T2 (de) * | 1987-07-15 | 1996-01-25 | Canon Kk | Elektronenemittierende Vorrichtung. |
USRE39633E1 (en) * | 1987-07-15 | 2007-05-15 | Canon Kabushiki Kaisha | Display device with electron-emitting device with electron-emitting region insulated from electrodes |
USRE40566E1 (en) * | 1987-07-15 | 2008-11-11 | Canon Kabushiki Kaisha | Flat panel display including electron emitting device |
US5749763A (en) * | 1987-07-15 | 1998-05-12 | Canon Kabushiki Kaisha | Display device with electron-emitting device with electron-emitting region insulted from electrodes |
NL8702570A (nl) * | 1987-10-29 | 1989-05-16 | Philips Nv | Geladen deeltjes bundel apparaat. |
NL8702829A (nl) * | 1987-11-26 | 1989-06-16 | Philips Nv | Weergeefinrichting. |
JP2788243B2 (ja) * | 1988-02-27 | 1998-08-20 | キヤノン株式会社 | 半導体電子放出素子及び半導体電子放出装置 |
US5285129A (en) * | 1988-05-31 | 1994-02-08 | Canon Kabushiki Kaisha | Segmented electron emission device |
FR2637126B1 (fr) * | 1988-09-23 | 1992-05-07 | Thomson Csf | Composant tel que diode, triode ou dispositif d'affichage cathodoluminescent plat et integre, et procede de fabrication |
DE69033677T2 (de) * | 1989-09-04 | 2001-05-23 | Canon K.K., Tokio/Tokyo | Elektronenemissionselement- und Herstellungsverfahren desselben |
US5814832A (en) * | 1989-09-07 | 1998-09-29 | Canon Kabushiki Kaisha | Electron emitting semiconductor device |
US5202571A (en) * | 1990-07-06 | 1993-04-13 | Canon Kabushiki Kaisha | Electron emitting device with diamond |
JPH0536369A (ja) * | 1990-09-25 | 1993-02-12 | Canon Inc | 電子ビーム装置及びその駆動方法 |
JPH0512988A (ja) * | 1990-10-13 | 1993-01-22 | Canon Inc | 半導体電子放出素子 |
US5166709A (en) * | 1991-02-06 | 1992-11-24 | Delphax Systems | Electron DC printer |
US5144191A (en) * | 1991-06-12 | 1992-09-01 | Mcnc | Horizontal microelectronic field emission devices |
JPH0513136A (ja) * | 1991-06-28 | 1993-01-22 | Nec Corp | Icソケツト |
EP0532019B1 (en) * | 1991-09-13 | 1997-12-29 | Canon Kabushiki Kaisha | Semiconductor electron emission device |
JP2723405B2 (ja) * | 1991-11-12 | 1998-03-09 | 松下電器産業株式会社 | 微細電極の形成方法 |
FR2685811A1 (fr) * | 1991-12-31 | 1993-07-02 | Commissariat Energie Atomique | Systeme permettant de maitriser la forme d'un faisceau de particules chargees. |
US5331180A (en) * | 1992-04-30 | 1994-07-19 | Fujitsu Limited | Porous semiconductor light emitting device |
DE69316960T2 (de) * | 1992-11-12 | 1998-07-30 | Koninkl Philips Electronics Nv | Elektronenröhre mit Halbleiterkathode |
DE69329253T2 (de) * | 1992-12-08 | 2000-12-14 | Koninklijke Philips Electronics N.V., Eindhoven | Kathodenstrahlröhre mit Halbleiterkathode. |
EP0645794B1 (en) * | 1993-09-20 | 1997-11-26 | Hewlett-Packard Company | Focusing and steering electrodes for electron sources |
TW286435B (sv) * | 1994-07-27 | 1996-09-21 | Siemens Ag | |
GB9905132D0 (en) * | 1999-03-06 | 1999-04-28 | Smiths Industries Plc | Electron emitting devices |
US6847045B2 (en) * | 2001-10-12 | 2005-01-25 | Hewlett-Packard Development Company, L.P. | High-current avalanche-tunneling and injection-tunneling semiconductor-dielectric-metal stable cold emitter, which emulates the negative electron affinity mechanism of emission |
JP4274129B2 (ja) | 2005-01-31 | 2009-06-03 | セイコーエプソン株式会社 | プロジェクタ |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2912592A (en) * | 1954-10-07 | 1959-11-10 | Horizons Inc | Memory device |
NL107624C (sv) * | 1955-09-01 | |||
US3060327A (en) * | 1959-07-02 | 1962-10-23 | Bell Telephone Labor Inc | Transistor having emitter reversebiased beyond breakdown and collector forward-biased for majority carrier operation |
US3363240A (en) * | 1964-06-22 | 1968-01-09 | Burroughs Corp | Solid state electron emissive memory and display apparatus and method |
GB1198567A (en) * | 1968-05-17 | 1970-07-15 | Gen Electric & English Elect | Improvements in or relating to Electric Discharge Devices. |
US3581151A (en) * | 1968-09-16 | 1971-05-25 | Bell Telephone Labor Inc | Cold cathode structure comprising semiconductor whisker elements |
GB1303660A (sv) * | 1969-11-12 | 1973-01-17 | ||
GB1303659A (sv) * | 1969-11-12 | 1973-01-17 | ||
GB1303658A (sv) * | 1969-11-12 | 1973-01-17 | ||
US3755704A (en) * | 1970-02-06 | 1973-08-28 | Stanford Research Inst | Field emission cathode structures and devices utilizing such structures |
CA942824A (en) * | 1970-06-08 | 1974-02-26 | Robert J. Archer | Cold cathode |
US3808477A (en) * | 1971-12-17 | 1974-04-30 | Gen Electric | Cold cathode structure |
US3882355A (en) * | 1972-12-29 | 1975-05-06 | Ibm | Flat screen display device using controlled cold cathodes |
GB1457105A (en) * | 1973-06-01 | 1976-12-01 | English Electric Valve Co Ltd | Electron guns |
US4000503A (en) * | 1976-01-02 | 1976-12-28 | International Audio Visual, Inc. | Cold cathode for infrared image tube |
NL7604569A (nl) * | 1976-04-29 | 1977-11-01 | Philips Nv | Veldemitterinrichting en werkwijze tot het vormen daarvan. |
NL184549C (nl) * | 1978-01-27 | 1989-08-16 | Philips Nv | Halfgeleiderinrichting voor het opwekken van een elektronenstroom en weergeefinrichting voorzien van een dergelijke halfgeleiderinrichting. |
-
1978
- 1978-01-27 NL NLAANVRAGE7800987,A patent/NL184549C/xx not_active IP Right Cessation
- 1978-12-21 US US05/971,767 patent/US4259678A/en not_active Expired - Lifetime
-
1979
- 1979-01-18 CA CA319,908A patent/CA1131795A/en not_active Expired
- 1979-01-23 AU AU43591/79A patent/AU521540B2/en not_active Ceased
- 1979-01-24 IT IT19567/79A patent/IT1110930B/it active
- 1979-01-24 GB GB8108219A patent/GB2068169B/en not_active Expired
- 1979-01-24 SE SE7900625A patent/SE438572B/sv not_active Application Discontinuation
- 1979-01-24 AT AT0050979A patent/AT375782B/de not_active IP Right Cessation
- 1979-01-24 CH CH71579A patent/CH640979A5/de not_active IP Right Cessation
- 1979-01-24 GB GB7902455A patent/GB2013398B/en not_active Expired
- 1979-01-25 DE DE2902746A patent/DE2902746C2/de not_active Expired
- 1979-01-25 ES ES477148A patent/ES477148A1/es not_active Expired
- 1979-01-25 BE BE0/193079A patent/BE873713A/xx not_active IP Right Cessation
- 1979-01-26 FR FR7902116A patent/FR2415879A1/fr active Granted
- 1979-01-27 JP JP770279A patent/JPS54111272A/ja active Granted
-
1980
- 1980-07-21 US US06/170,363 patent/US4325084A/en not_active Expired - Lifetime
-
1982
- 1982-02-05 US US06/345,994 patent/US4554564A/en not_active Expired - Fee Related
- 1982-08-04 JP JP57135294A patent/JPS5828837A/ja active Granted
-
1985
- 1985-02-26 JP JP60035420A patent/JPS60241627A/ja active Pending
- 1985-02-26 JP JP60035419A patent/JPS60241626A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AT375782B (de) | 1984-09-10 |
AU4359179A (en) | 1979-08-02 |
GB2068169B (en) | 1982-12-08 |
CH640979A5 (de) | 1984-01-31 |
GB2013398B (en) | 1982-09-08 |
ES477148A1 (es) | 1979-11-16 |
GB2068169A (en) | 1981-08-05 |
FR2415879B1 (sv) | 1983-07-22 |
JPS60241626A (ja) | 1985-11-30 |
IT7919567A0 (it) | 1979-01-24 |
AU521540B2 (en) | 1982-04-08 |
BE873713A (fr) | 1979-07-25 |
FR2415879A1 (fr) | 1979-08-24 |
NL184549C (nl) | 1989-08-16 |
JPS6245691B2 (sv) | 1987-09-28 |
JPS54111272A (en) | 1979-08-31 |
JPS60241627A (ja) | 1985-11-30 |
JPS6146931B2 (sv) | 1986-10-16 |
CA1131795A (en) | 1982-09-14 |
NL184549B (nl) | 1989-03-16 |
SE438572B (sv) | 1985-04-22 |
DE2902746A1 (de) | 1979-08-02 |
IT1110930B (it) | 1986-01-13 |
US4554564A (en) | 1985-11-19 |
GB2013398A (en) | 1979-08-08 |
US4259678A (en) | 1981-03-31 |
ATA50979A (de) | 1984-01-15 |
DE2902746C2 (de) | 1987-01-15 |
US4325084A (en) | 1982-04-13 |
JPS5828837A (ja) | 1983-02-19 |
NL7800987A (nl) | 1979-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7900625L (sv) | Halvledaranordning och forfarande for dess tillverkning samt pick-up-anordning och atergivningsanordning innefattande halvledaranordningen | |
SE8009140L (sv) | Katodstraleanordning | |
US2960659A (en) | Semiconductive electron source | |
GB1417032A (en) | Cold cathode field electron emitting devices | |
ES438659A1 (es) | Mejoras introducidas en un generador de rayos x. | |
DK0500920T3 (da) | Koldkatodefeltudstrålingsanordning med et strømkildeorgan | |
DE3375252D1 (en) | Electron beam projection lithography | |
US2903596A (en) | Image transducers | |
GB539668A (en) | Improvements in or relating to phase modulation of high-frequency currents | |
EP0718865A3 (en) | Photomultiplier having a photocathode comprised of semiconductor material | |
US3688143A (en) | Multi-diode camera tube with fiber-optics faceplate and channel multiplier | |
GB1032768A (en) | Improvements in or relating to electron discharge devices | |
US3891887A (en) | Semiconductor devices | |
CA959911A (en) | Secondary electron collector electrode for cathode ray tubes | |
SU575965A1 (ru) | Электронно-оптическа система дл приемных электронно-лучевых трубок | |
SU119622A1 (ru) | Способ повышени чувствительности телевизионных передающих трубок | |
Williams | Electron emission from negative affinity semiconductors | |
SU428534A1 (ru) | Электронно-полупроводниковый несимметричный триггер | |
Goetze et al. | Secondary electron conduction in low density targets for signal amplification and storage in camera tubes | |
FR2251097A2 (en) | Very high frequency electronic tube - has focussing and deflection means between gun and delay device | |
GB1106891A (en) | Improvements in or relating to electron-optical image converter tubes | |
GB1140437A (en) | Testing semiconductor devices | |
GB912417A (en) | Improvements in cold cathode electron tubes | |
GB922537A (en) | Improvements in or relating to devices comprising a cathode-ray tube | |
JPS51123059A (en) | Cathode ray device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 7900625-0 |