GB686907A - Improvements in or relating to crystal triodes - Google Patents
Improvements in or relating to crystal triodesInfo
- Publication number
- GB686907A GB686907A GB19942/49A GB1994249A GB686907A GB 686907 A GB686907 A GB 686907A GB 19942/49 A GB19942/49 A GB 19942/49A GB 1994249 A GB1994249 A GB 1994249A GB 686907 A GB686907 A GB 686907A
- Authority
- GB
- United Kingdom
- Prior art keywords
- semi
- electrodes
- emitter
- conductor
- collector
- 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
- 239000013078 crystal Substances 0.000 title 1
- 239000004065 semiconductor Substances 0.000 abstract 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 4
- 239000010931 gold Substances 0.000 abstract 3
- 229910052737 gold Inorganic materials 0.000 abstract 3
- 238000005323 electroforming Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- HHIQWSQEUZDONT-UHFFFAOYSA-N tungsten Chemical compound [W].[W].[W] HHIQWSQEUZDONT-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
- H10D48/30—Devices controlled by electric currents or voltages
- H10D48/32—Devices controlled by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H10D48/34—Bipolar devices
- H10D48/345—Bipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D10/00—Bipolar junction transistors [BJT]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electron Tubes For Measurement (AREA)
- Cold Cathode And The Manufacture (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL91394D NL91394C (en, 2012) | 1949-07-29 | ||
| GB19942/49A GB686907A (en) | 1949-07-29 | 1949-07-29 | Improvements in or relating to crystal triodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19942/49A GB686907A (en) | 1949-07-29 | 1949-07-29 | Improvements in or relating to crystal triodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB686907A true GB686907A (en) | 1953-02-04 |
Family
ID=10137698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19942/49A Expired GB686907A (en) | 1949-07-29 | 1949-07-29 | Improvements in or relating to crystal triodes |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB686907A (en, 2012) |
| NL (1) | NL91394C (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1060051B (de) * | 1955-09-08 | 1959-06-25 | Ibm Deutschland | Verfahren zur Herstellung der Kollektorspitzenelektrode eines Transistors mit zwei vorgelagerten Zonen entgegengesetzten Leitungstyps |
-
0
- NL NL91394D patent/NL91394C/xx active
-
1949
- 1949-07-29 GB GB19942/49A patent/GB686907A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1060051B (de) * | 1955-09-08 | 1959-06-25 | Ibm Deutschland | Verfahren zur Herstellung der Kollektorspitzenelektrode eines Transistors mit zwei vorgelagerten Zonen entgegengesetzten Leitungstyps |
Also Published As
| Publication number | Publication date |
|---|---|
| NL91394C (en, 2012) |
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