GB1301388A - - Google Patents
Info
- Publication number
- GB1301388A GB1301388A GB1301388DA GB1301388A GB 1301388 A GB1301388 A GB 1301388A GB 1301388D A GB1301388D A GB 1301388DA GB 1301388 A GB1301388 A GB 1301388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic field
- diodes
- diode
- region
- march
- 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
- 239000004065 semiconductor Substances 0.000 abstract 2
- 239000000969 carrier Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000006798 recombination Effects 0.000 abstract 1
- 238000005215 recombination Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/006—Transducers other than those covered by groups H04R9/00 - H04R21/00 using solid state devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Hall/Mr Elements (AREA)
Abstract
1301388 Semi-conductor devices LICENTIAPATENT - VERWALTUNGS GmbH 25 March 1970 [28 March 1969 (2)] 14545/70 Heading H1K [Also in Division H4] An electromagnetic transducer comprises a magnetic field diode and means for producing a magnetic field, the arrangement being such that a relative displacement between the diode and the magnetic field causes a change in resistance of the diode. The magnetic field diode is constructed as shown in Fig. 1 and comprises highly dioped N<SP>+</SP> and P<SP>+</SP> type regions 2, 3 on either side of a high-resistivity region 4 of N-, P-, or I type conductivity having a very long carrier lifetime within which is arranged a region 5 having a high recombination rate. A suitable magnetic field deflects carriers flowing between regions 2 and 3 into the region 5 where they recombine causing the resistance of the diode to rise. The semi-conductor material may be Si or Ge. Temperature compensation may be achieved by connecting a pair of diodes (6, 7) in series across a bias supply, Fig. 2 (not shown). The diodes are arranged so that their resistances vary in opposite senses when the magnetic field varies and the voltage across one of the diodes is applied to the input of an amplifier (8) which may be integrated in the same wafer as the diodes. Four diodes may be connected in a bridge circuit, Fig. 3 (not shown). The transducer may be used in gramophone pick-ups, Fig. 4 (not shown) and microphones, Fig. 5 (not shown).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691915994 DE1915994A1 (en) | 1969-03-28 | 1969-03-28 | microphone |
| DE19691915993 DE1915993A1 (en) | 1969-03-28 | 1969-03-28 | Pickup system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1301388A true GB1301388A (en) | 1972-12-29 |
Family
ID=25757200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1301388D Expired GB1301388A (en) | 1969-03-28 | 1970-03-25 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2035960A7 (en) |
| GB (1) | GB1301388A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE361805B (en) * | 1972-08-07 | 1973-11-12 | Ericsson Telefon Ab L M |
-
1970
- 1970-03-25 GB GB1301388D patent/GB1301388A/en not_active Expired
- 1970-03-25 FR FR7010806A patent/FR2035960A7/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2035960A7 (en) | 1970-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2561411A (en) | Semiconductor signal translating device | |
| US2570978A (en) | Semiconductor translating device | |
| US2623105A (en) | Semiconductor translating device having controlled gain | |
| US2778956A (en) | Semiconductor signal translating devices | |
| GB721740A (en) | Signal translating devices utilising semiconductive bodies | |
| GB1468551A (en) | Magnetic playback transducer | |
| GB748558A (en) | Logical circuits embodying bistable magnetic storage elements | |
| GB1171271A (en) | Semiconductor Magnetic Transducer | |
| US2907897A (en) | Pressure transducer | |
| GB1486238A (en) | Magnetoresistive arrangements | |
| US3305790A (en) | Combination hall-effect device and transistors | |
| US2717342A (en) | Semiconductor translating devices | |
| GB1301388A (en) | ||
| GB1408985A (en) | Constant current circuits | |
| GB933211A (en) | Improvements in or relating to semi-conductor devices | |
| US2877309A (en) | Hall effect amplifier | |
| GB798671A (en) | Improvements in or relating to a semi-conductor modulating device | |
| US3660696A (en) | Hall effect switching device | |
| US2776381A (en) | Multielectrode semiconductor circuit element | |
| GB1340987A (en) | Semiconductor information store | |
| GB1367346A (en) | Amplifier circuit | |
| JPS5613774A (en) | Thin film diode device and method of manufacturing same | |
| SU1138921A1 (en) | Current amplifier | |
| GB1485778A (en) | Signal clipping circuits | |
| Ringo et al. | 1f noise in uniform avalanche diodes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |