| Walter H. Schottky | |
 Walter H. Schottky
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| Born | 23 July 1886 Zürich, Switzerland |
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| Died | 4 March 1976, Pretzfeld, West Germany |
| Nationality | German |
| Fields | physics |
| Institutions | Siemens |
| Known for | screen-grid vacuum tube tetrode Schrot effect |
| Notable awards | Hughes medal in 1936 |
Walter Hermann Schottky (23 July 1886, Zürich, Switzerland – 4 March 1976, Pretzfeld, West Germany) was a German physicist who invented the screen-grid vacuum tube in 1915 and the tetrode in 1919 while working at Siemens. Events 1632 - Three hundred colonists bound for New France depart from Dieppe France. Year 1886 ( MDCCCLXXXVI) was a Common year starting on Friday (link will display the full calendar of the Gregorian calendar (or a Common Zürich (, Zürich German: Züri, Zurich, Zurigo; in English generally Zurich) is the largest city in Switzerland and capital of the Switzerland (English pronunciation; Schweiz Swiss German: Schwyz or Schwiiz Suisse Svizzera Svizra officially the Swiss Confederation Events 51 - Nero, later to become Roman Emperor, is given the title Princeps iuventutis (head of the youth Year 1976 ( MCMLXXVI) was a Leap year starting on Thursday (link will display full calendar of the Gregorian calendar. Pretzfeld is a municipality in the district of Forchheim in Bavaria in Germany. West Germany ( Inf German: Westdeutschland or West-Deutschland) was the common English name for the Federal Republic of Germany ( Germany, officially the Federal Republic of Germany ( ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant is a Country in Central Europe. Physics (Greek Physis - φύσις in everyday terms is the Science of Matter and its motion. The screen grid is a Grid introduced into a Vacuum tube (thermionic valve to greatly reduce the capacitance between two other parts of the electrode structure This article is about the electronic device not an evacuated pipe used for experiments in Free-fall. A tetrode is an electronic device having four active Electrodes The term most commonly applies to a two-grid Vacuum tube. Walter Hermann Schottky ( 23 July 1886, Zürich, Switzerland – 4 March 1976, Pretzfeld, West Germany The Hughes Medal, named after Microphone inventor David Edward Hughes, is one of several medals awarded by the Royal Society, England's reigning academy Year 1936 ( MCMXXXVI) was a Leap year starting on Wednesday (link will display the full calendar of the Gregorian calendar. Events 1632 - Three hundred colonists bound for New France depart from Dieppe France. Year 1886 ( MDCCCLXXXVI) was a Common year starting on Friday (link will display the full calendar of the Gregorian calendar (or a Common Zürich (, Zürich German: Züri, Zurich, Zurigo; in English generally Zurich) is the largest city in Switzerland and capital of the Switzerland (English pronunciation; Schweiz Swiss German: Schwyz or Schwiiz Suisse Svizzera Svizra officially the Swiss Confederation Events 51 - Nero, later to become Roman Emperor, is given the title Princeps iuventutis (head of the youth Year 1976 ( MCMLXXVI) was a Leap year starting on Thursday (link will display full calendar of the Gregorian calendar. Pretzfeld is a municipality in the district of Forchheim in Bavaria in Germany. West Germany ( Inf German: Westdeutschland or West-Deutschland) was the common English name for the Federal Republic of Germany ( Germany, officially the Federal Republic of Germany ( ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant is a Country in Central Europe. The screen grid is a Grid introduced into a Vacuum tube (thermionic valve to greatly reduce the capacitance between two other parts of the electrode structure This article is about the electronic device not an evacuated pipe used for experiments in Free-fall. Year 1915 ( MCMXV) was a Common year starting on Friday (link will display the full calendar of the Gregorian calendar (or a Common year A tetrode is an electronic device having four active Electrodes The term most commonly applies to a two-grid Vacuum tube. Year 1919 ( MCMXIX) was a Common year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a Common In 1938, Schottky formulated a theory predicting the Schottky effect, now used in Schottky diodes. Year 1938 ( MCMXXXVIII) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar. The Schottky diode (named after German physicist Walter H Schottky; also known as hot carrier diode) is a Semiconductor Diode with
He was awarded the Royal Society's Hughes medal in 1936 for his discovery of the Schrot effect (spontaneous current variations in high-vacuum discharge tubes, called by him the "Schrot effect": literally, the "small shot effect") in thermionic emission and his invention of the screen-grid tetrode and a superheterodyne method of receiving wireless signals. The Royal Society of London for the Improvement of Natural Knowledge, known simply as The Royal Society, is a Learned society for science that was founded in 1660 The Hughes Medal, named after Microphone inventor David Edward Hughes, is one of several medals awarded by the Royal Society, England's reigning academy Year 1936 ( MCMXXXVI) was a Leap year starting on Wednesday (link will display the full calendar of the Gregorian calendar. Walter Hermann Schottky ( 23 July 1886, Zürich, Switzerland – 4 March 1976, Pretzfeld, West Germany Thermionic emission is the flow of Charge carriers from a surface or over some other kind of Electrical potential barrier caused by thermal vibrational energy In Electronics, the superheterodyne receiver (also known by its full name the supersonic heterodyne receiver, or by the abbreviated form superhet) is a
In 1964 he received the Werner-von-Siemens-Ring honoring his ground-breaking work on the physical understanding of many phenomena that led to many important technical appliances, among them tube amplifiers and semiconductors. Year 1964 ( MCMLXIV) was a Leap year starting on Wednesday (link will display full calendar of the 1964 Gregorian calendar. The Werner von Siemens Ring (in German Orthography, Werner-von-Siemens-Ring) is considered to be among the highest ranking awards for technical sciences in Germany A valve amplifier or tube amplifier is a type of Electronic amplifier that make use of Vacuum tubes instead of solid-state Semiconductor A semiconductor' is a Solid material that has Electrical conductivity in between a conductor and an insulator; it can vary over that
Note: The invention of superheterodyne is usually attributed to Edwin Armstrong. Edwin Howard Armstrong ( December 18, 1890 &ndash January 31, 1954) was an American Electrical engineer and Inventor However, Schottky published an article in Proc. IRE that he had also invented something similar.
- 1939: first p-n junction
His father was mathematician Friedrich Hermann Schottky (1851–1935). Year 1939 ( MCMXXXIX) was a Common year starting on Sunday (link will display the full calendar of the Gregorian calendar. A p-n junction is a junction formed by combining P-type and N-type Semiconductors together in very close contact A mathematician is a person whose primary area of study and research is the field of Mathematics. Friedrich Hermann Schottky ( July 24, 1851 - August 12, 1935) was a German mathematician who worked on elliptic, abelian
See also
External links
A Schottky defect is a type of point defect in a Crystal lattice named for Walter HDapyx Software network: MP3 Explorer | Ebook Manager | Zenithic