DE1050868B - - Google Patents
Info
- Publication number
- DE1050868B DE1050868B DENDAT1050868D DE1050868DA DE1050868B DE 1050868 B DE1050868 B DE 1050868B DE NDAT1050868 D DENDAT1050868 D DE NDAT1050868D DE 1050868D A DE1050868D A DE 1050868DA DE 1050868 B DE1050868 B DE 1050868B
- Authority
- DE
- Germany
- Prior art keywords
- magnetic field
- resistance
- semiconductor
- bodies
- different
- 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.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 claims description 16
- 230000001419 dependent Effects 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 8
- WPYVAWXEWQSOGY-UHFFFAOYSA-N Indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N Indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000673 Indium arsenide Inorganic materials 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 2
- 230000037230 mobility Effects 0.000 claims 3
- 238000004381 surface treatment Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 claims 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- ZFIVKAOQEXOYFY-UHFFFAOYSA-N butadiene bisoxide Chemical compound C1OC1C1OC1 ZFIVKAOQEXOYFY-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000005712 crystallization Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000051 modifying Effects 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
- G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
- G05B1/02—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals
- G05B1/027—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals using impedance bridges
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AN MELDBTAG:ON REPORTING DAY:
BEKAinfTHACHTTHG
DER ANMELDDIfG
OND ACSGABE DEB
AOaiKGKßCHEIFT:BEKAinfTHACHTTHG
THE ANMELDDIfG
OND ACSGABE DEB
AOaiKGKßCHEIFT:
AUSGABE dsr
PATEHTSCHRIFTSAU SGAB E dsr
PATENTED
VHr 1«9WOOOVHr 1 «9WOOO
kl, 21 c 54/05kl, 21c 54/05
OnXRIfAT. XL. HOlcOnXRIfAT. XL. HOlc
601t; G05f601t; G05f
13. FEBRtJAR 1954FEBRTY 13, 1954
19. FEBRUAR 1959 13. AUGUST 1959FEBRUARY 19, 1959 AUGUST 13, 1959
STIUHT ÜBEREIN MIT AUSLECESCHiUFT 1*50 868 (S J«B>Vmd/21«)COMES WITH AUSLECESCHiUFT 1 * 50 868 (S J «B> Vmd / 21«)
Die Erfindung betrifft eine Einrichtung, die auf der Ausnutzung der Widerstandsänderung eines in einem Magnetfeld angeordneten magnetfeldabhängigen Widerstandskörpers beruht und insbesondere zu Meßoder Regel zwecken dient. Es ist eine solche Einrichtung bekanntgeworden, die zur Messung eines magnetischen Flusses vorgesehen ist. Sie weist zwei jnagnetfeldabhängige Widerstände mit ähnlichen Temperaturbeiwerten und unterschiedlichen Magnetfeldabhängigkeiten in einer Brückenschaltung auf. Dabei besteht der eine Widerstandskörper aus Wismut, der andere aus Wolfram oder ähnlichem Material. Diese beiden magnetfeldabhängigen Widerstandskörper sind in einem isolierenden Material eingebettet, stehen jedoch nicht in unmittelbarem Wärmekontakt.The invention relates to a device based on the utilization of the change in resistance of an in a magnetic field arranged magnetic field-dependent resistance body is based and in particular to measuring or Usually serves purposes. Such a device has become known for measuring a magnetic River is provided. It has two magnetic field dependent resistances with similar temperature coefficients and different magnetic field dependencies in a bridge circuit. One resistance body consists of bismuth, the other made of tungsten or similar material. These two magnetic field-dependent resistance bodies are in embedded in an insulating material, but are not in direct thermal contact.
Da die Temperaturbeiwerte von Wismut und Wolfram nicht genau genug übereinstimmen, wurde bei der bekannten Einrichtung versucht, durch weitere Maßnahmen in der Brücke die Kompensation zu verbessern.Since the temperature coefficients of bismuth and tungsten do not match exactly enough, the known device tries to improve the compensation by further measures in the bridge.
Eine verbesserte Temperaturkompensation mit einfachen Mitteln zu schaffen, ist Aufgabe deT Erfindung. Die Lösung besteht darin, daß in einer an sich zur Temperaturkompensation magnetfeldabhängiger Widerstände bekannten Brückenschaltung zwei in benachbarten Brückenzweigen liegende, aus dem gleichen Stoff bestehende, magnetfeldabhängige Halbleiterkörper gleichen,Temperaturbeiwertes, aber unterschiedlicher Magnetfeldabhängigkeit, in unmittelbarem gegenseitigem Wärmekontakt angeordnet sind.The object of the invention is to create an improved temperature compensation with simple means. The solution is that in a magnetic field-dependent per se for temperature compensation Resistors known bridge circuit two lying in adjacent bridge branches, from the same substance existing, magnetic field-dependent semiconductor bodies have the same temperature coefficient, but different Magnetic field dependence, are arranged in direct mutual thermal contact.
Durch die Verwendung von Halbleiterkörpern aus dem gleichen Stoff, die also zwangläufig den gleichen Temperaturbeiwert aufweisen, bzw. durch die Verwendung zweier aus dem gleichen Stoff bestehender Eigenhalbleiter, deren Temperäturbeiwef te durch Dotierung einander angeglichen sind, ist dabei.eine Temperaturkompensation in einem weiten Bereich möglich. Hinzu kommt, daß die Temperatur der steuerbaren magnetfeldabhängigen Widerstandskörper außer von der .Umgebungstemperatur auch noch von der Stromwärme entsprechend dem Grad ihrer Aussteuerung abhängig ist. Die beiden Widerstandskörper werden daher in unmittelbarem Wärmekontakt dicht nebeneinander angeordnet; sie können durch eine thermisch gut leitende, aber elektrisch isolierende Zwischenschicht voneinander getrennt sein.Through the use of semiconductor bodies made of the same material, which are inevitably the same Have a temperature coefficient, or by using two intrinsic semiconductors made of the same material, whose temperature coefficients are adjusted to one another by doping, is a temperature compensation possible in a wide range. In addition, the temperature of the controllable magnetic field-dependent Resistance body not only from the ambient temperature but also from the heat of the current depends on the degree of their modulation. The two resistance bodies will be therefore arranged close to one another in direct thermal contact; you can through a thermal a well-conducting, but electrically insulating intermediate layer must be separated from one another.
Vorteilhaft werden als magnetfeldabhängige Widerstände solche aus halbleitenden Verbindungen mit Tragerbeweglichkeiten von mehr als 6000 CmaZVsec, vorzugsweise 10000 cmWsec und mehr, benutzt. Insbesondere eignen sich Verbindungen eines Elementes der III. mit einem Element der V. Gruppe des Periodischen Systems. Mit derartigen An3Bv-Verbindungen lassen sich bekanntlich—wie auch mit anderen Halbleitern — magnetfeldabhängige Widerstands-Advantageously, resistors that are dependent on the magnetic field are those made of semiconducting connections with portability of more than 6000 cm a ZVsec, preferably 10000 cmWsec and more. In particular, compounds of an element of III are suitable. with an element of Group V of the Periodic Table. As is well known, with such A n3 B v connections - as with other semiconductors - magnetic field-dependent resistance
der Widerstandsänderung eines
in einem Magnetfeld angeordneten
magnetfeldabhängigen Widerstandskörpers beruhtthe change in resistance of a
arranged in a magnetic field
magnetic field-dependent resistance body is based
Siemens-Schuckertwerke
Aktiengesellschaft,
Berlin und ErlangenSiemens-Schuckertwerke
Corporation,
Berlin and Erlangen
Dr. rer. nat. Hanns von Stengel, Nürnberg,
ist als Erfinder genannt wordenDr. rer. nat. Hanns von Stengel, Nuremberg,
has been named as the inventor
»5 körper mit sogenannter magnetischer Sperrschicht darstellen mit einer an Elektronenlochpaaren verarmten Zone, die durch ein elektrisches Feld und ein dazu vorzugsweise senkrecht stehendes magnetisches Feld hervorgerufen ist. Mit solchen durch Änderung des magnetischen Feldes und zusätzlich durch ein elektrisches Feld und/oder eine Strahlung steuerbaren Stoffen — die bereits an anderer Stelle vorgeschlagen sind — lassen sich bei geringem Aufwand eine große Anzahl von praktischen Anwendungen der magnetfeldabhängigen Effekte ermöglichen. Zu diesen Stoffen gehört als AmBy-Verbmdung beispielsweise Indiumantimonid, das eine Trägerbeweglichkeit von über 20000 cmB/Vsec aufweist. Gerade bei Verwendung dieser Stoffe kommt die Erfindung besonders zur Geltung, da die besagten Halbleiter eine große Temperaturabhängigkeit des Widerstandswertes aufweisen.»5 represent bodies with a so-called magnetic barrier layer with a zone depleted of electron hole pairs, which is caused by an electric field and a magnetic field that is preferably perpendicular to it. With such substances controllable by changing the magnetic field and additionally by an electric field and / or radiation - which have already been proposed elsewhere - a large number of practical applications of the magnetic field-dependent effects can be made possible with little effort. Is one of these substances as A m By-Verbmdung for example, indium antimonide, which Vsec has a carrier mobility of more than 20000 cm B /. The invention is particularly effective when these substances are used, since the said semiconductors have a large temperature dependence of the resistance value.
Mit Hilfe innerer Maßnahmen, unter denen solche physikalisch-chemischer Natur verstanden werden, wie Wahl bestimmter Reinheitsgrade, mehr oder wenigerWith the help of internal measures, under which those of a physical-chemical nature are understood as Choice of certain degrees of purity, more or less
45' ausgeprägte Kristallisation der Halbleiter u. dgl., kann die erforderliche unterschiedliche Magnetfeldabhängigkeit dadurch erreicht werden, daß als StofF mit großer Magnetfeldabhängigkeit beispielsweise Indiumantimonid oder Indiumarsenid verwendet wird, welches sich in der Nähe der Eigenleitung auf der elektronenleitenden Seite befindet, während als Stoff mit geringerer Widerstandsänderung ebenfalls Indiumantimonid oder Indiumarsenid in der Nähe der Eigenleitung, jedoch auf - der defektelektro enleitenden Seite verw^SZI» 45 'pronounced crystallization of the semiconductors and the like, the required different magnetic field dependency can be achieved by using indium antimonide, for example, as a substance with a large magnetic field dependence or indium arsenide is used, which is located in the vicinity of the intrinsic conduction on the electron-conducting side, while as a substance with lesser Change in resistance also indium antimonide or indium arsenide in the vicinity of the intrinsic conduction, however on - the defective electrical side used ^ SZI »
Claims (6)
Publications (1)
Publication Number | Publication Date |
---|---|
DE1050868B true DE1050868B (en) |
Family
ID=591176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT1050868D Pending DE1050868B (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1050868B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2851330A1 (en) * | 1977-11-29 | 1979-06-07 | Asahi Chemical Ind | MAGNETORESISTIVE SEMICONDUCTOR ELEMENT |
-
0
- DE DENDAT1050868D patent/DE1050868B/de active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2851330A1 (en) * | 1977-11-29 | 1979-06-07 | Asahi Chemical Ind | MAGNETORESISTIVE SEMICONDUCTOR ELEMENT |
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