GB1113442A - Electrical signal translating apparatus - Google Patents
Electrical signal translating apparatusInfo
- Publication number
- GB1113442A GB1113442A GB21756/65A GB2175665A GB1113442A GB 1113442 A GB1113442 A GB 1113442A GB 21756/65 A GB21756/65 A GB 21756/65A GB 2175665 A GB2175665 A GB 2175665A GB 1113442 A GB1113442 A GB 1113442A
- Authority
- GB
- United Kingdom
- Prior art keywords
- domain
- electrodes
- covering
- wafer
- effect
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B9/00—Generation of oscillations using transit-time effects
- H03B9/12—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/80—Generating trains of sinusoidal oscillations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N80/00—Bulk negative-resistance effect devices
- H10N80/10—Gunn-effect devices
Abstract
1,113,442. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 21 May, 1965 [12 June, 1964], No. 21756/65. Heading H1K. An electric field in excess of a threshold value applied to a body of Ga As or like polar semiconductor produces in the body an abrupt fall of conductance, in a time of the order of 10<SP>-10</SP> seconds, which can give rise to current fluctuations at microwave frequency as described in Specification 1,070,261. The fall in conductance is associated with the formation, adjacent the cathode terminal of such a body, of a localized region or domain of abnormally high electric field and this domain propagates towards the anode terminal where it is dissipated. The current fluctuations described in the abovementioned prior Patent are shown to be the consequence of successive transits of such domains through the body. The invention exploits this new understanding of the effect, and its claims relate to a system in which the body has at least three electrodes which are selectively energized to produce appropriate fields in the body. Other aspects of the subject matter are claimed in Specifications 1,113,443, 1,113,444, 1,113,445, 1,113,446 and 1,113,447. The description with respect to Figs. 1 to 3 (not shown) recapitulates the subject matter of Specification 1,070,261 and Figs. 4 to 7 (not shown) illustrate experiments which have been performed to establish the physical mechanism of the effect. Fig. 8 (not shown, but see Specification 1,113,444) depicts input voltage and output current pulse shapes related to the use of the effect to produce a single domain transit, i.e. pulsed operation. Figs. 9a to 9c (not shown) depict diagrammatically various electrode configurations and Figs. 10 and 11 (not shown) input and output pulse shapes obtainable by their use. In particular, a voltage less than that necessary to establish the required threshold field may be applied between two electrodes and a domain initiated by applying an appropriate potential to a third electrode. Fig. 12 shows a suitable three-electrode device consisting of a wafer 10 with a terminal 48 connected to a contact covering one surface of the wafer, and terminals 46, 47 connected to contacts on the opposite wafer surface which are made by covering this surface with metal and then cutting a slot 49 to separate this covering into two electrodes. Figs. 13 to 17 (not shown, but see Specifications 1,113,443, 1,113,445 and 1,113,446) depict bodies of irregular shape and/or non-uniform resistivity, and systems exploiting such bodies, e.g. as logic elements.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB51051/67A GB1113447A (en) | 1963-06-10 | 1965-05-21 | Electrical signal translating apparatus |
GB50947/67A GB1113443A (en) | 1964-06-12 | 1965-05-21 | A semiconductor device |
GB50949/67A GB1113445A (en) | 1964-06-12 | 1965-05-21 | A semiconductor device |
GB50950/67A GB1113446A (en) | 1963-06-10 | 1965-05-21 | A semiconductor device |
GB50948/67A GB1113444A (en) | 1964-06-12 | 1965-05-21 | A method for generating electrical signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US374758A US3365583A (en) | 1963-06-10 | 1964-06-12 | Electric field-responsive solid state devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1113442A true GB1113442A (en) | 1968-05-15 |
Family
ID=23478096
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50947/67A Expired GB1113443A (en) | 1964-06-12 | 1965-05-21 | A semiconductor device |
GB50948/67A Expired GB1113444A (en) | 1964-06-12 | 1965-05-21 | A method for generating electrical signals |
GB21756/65A Expired GB1113442A (en) | 1963-06-10 | 1965-05-21 | Electrical signal translating apparatus |
GB50949/67A Expired GB1113445A (en) | 1964-06-12 | 1965-05-21 | A semiconductor device |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50947/67A Expired GB1113443A (en) | 1964-06-12 | 1965-05-21 | A semiconductor device |
GB50948/67A Expired GB1113444A (en) | 1964-06-12 | 1965-05-21 | A method for generating electrical signals |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50949/67A Expired GB1113445A (en) | 1964-06-12 | 1965-05-21 | A semiconductor device |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE665303A (en) |
CH (1) | CH460858A (en) |
DE (1) | DE1298152C2 (en) |
FR (1) | FR1455145A (en) |
GB (4) | GB1113443A (en) |
NL (1) | NL169661C (en) |
SE (1) | SE344859B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3452222A (en) * | 1967-02-01 | 1969-06-24 | Bell Telephone Labor Inc | Circuits employing semiconductive devices characterized by traveling electric field domains |
US3453560A (en) * | 1967-07-05 | 1969-07-01 | Rca Corp | Grooved bulk semiconductor oscillator |
FR2449369A1 (en) * | 1979-02-13 | 1980-09-12 | Thomson Csf | LOGIC CIRCUIT COMPRISING A SATURABLE RESISTANCE |
DE2926757C2 (en) * | 1979-07-03 | 1983-08-04 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Semiconductor device with negative differential resistance |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT209377B (en) * | 1956-08-30 | 1960-06-10 | Siemens Ag | Device for generating plasma oscillations in electronic semiconductors |
-
1965
- 1965-05-21 GB GB50947/67A patent/GB1113443A/en not_active Expired
- 1965-05-21 GB GB50948/67A patent/GB1113444A/en not_active Expired
- 1965-05-21 GB GB21756/65A patent/GB1113442A/en not_active Expired
- 1965-05-21 GB GB50949/67A patent/GB1113445A/en not_active Expired
- 1965-06-04 DE DE19651298152 patent/DE1298152C2/en not_active Expired
- 1965-06-09 NL NLAANVRAGE6507296,A patent/NL169661C/en not_active IP Right Cessation
- 1965-06-10 FR FR20186A patent/FR1455145A/en not_active Expired
- 1965-06-11 CH CH818265A patent/CH460858A/en unknown
- 1965-06-11 BE BE665303A patent/BE665303A/xx unknown
- 1965-06-14 SE SE7837/65A patent/SE344859B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CH460858A (en) | 1968-08-15 |
DE1298152B (en) | 1974-03-07 |
GB1113444A (en) | 1968-05-15 |
GB1113443A (en) | 1968-05-15 |
NL6507296A (en) | 1965-12-13 |
NL169661B (en) | 1982-03-01 |
DE1298152C2 (en) | 1974-03-07 |
FR1455145A (en) | 1966-10-14 |
NL169661C (en) | 1982-08-02 |
GB1113445A (en) | 1968-05-15 |
SE344859B (en) | 1972-05-02 |
BE665303A (en) | 1965-10-01 |
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