DE1925820B2 - INTEGRATED SEMI-CONDUCTOR CIRCUIT PROTECTED AGAINST CONNECTION WITH INCORRECT POLARITY - Google Patents
INTEGRATED SEMI-CONDUCTOR CIRCUIT PROTECTED AGAINST CONNECTION WITH INCORRECT POLARITYInfo
- Publication number
- DE1925820B2 DE1925820B2 DE19691925820 DE1925820A DE1925820B2 DE 1925820 B2 DE1925820 B2 DE 1925820B2 DE 19691925820 DE19691925820 DE 19691925820 DE 1925820 A DE1925820 A DE 1925820A DE 1925820 B2 DE1925820 B2 DE 1925820B2
- Authority
- DE
- Germany
- Prior art keywords
- integrated
- diode
- connection
- circuit
- semiconductor circuit
- 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 title claims description 16
- 230000003071 parasitic effect Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000006378 damage Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 2
- 230000010354 integration Effects 0.000 claims 2
- 239000004020 conductor Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 6
- 238000005192 partition Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
- B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not
- B60Q11/007—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not the lighting devices indicating change of drive direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0611—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region
- H01L27/0641—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region without components of the field effect type
- H01L27/0676—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region without components of the field effect type comprising combinations of diodes, or capacitors or resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Semiconductor Integrated Circuits (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Emergency Protection Circuit Devices (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Elimination Of Static Electricity (AREA)
Description
925 820925 820
F i g. 6 den Aufbau einer SubstratUiode als Schutzdiode in der Minuszuleitung undF i g. 6 shows the structure of a substrate diode as a protective diode in the negative lead and
Fig. 7 die Kombination einer Diode mit einem Kondensator zu einem ÄC-Siebglied.7 shows the combination of a diode with a capacitor to form an AC filter element.
I'ig. 1 zeigt als Ausfülmingsbeispiel einen zur elektrischen Ausrüstung für Kraftfahrzeuge gehörenden Blinkgeber 10". Bestandteil des Blinkgebers 10" ist eine Halbleiterschaltung 10, deren Kern aus einer integrierten Schaltung besteht. Die Halbleiterschaltung 10 hat vier Anschlußklemmen 1, 2, 3, 4 und der Blinkgeber 10" Anschlußklemmen 1", 2" und 3". Von der Klemme 1" zur Klemme 1 führt eine Zuleitung Z1, von eier Klemme 2" zur Klemme 2 eine Zuleitung Z3 mit einer Schutzdiode D., und von der Klemme 3" zur Klemme 3 eine Zuleitung Z., mit einem Schutzwiderstand RS3. I'ig. 1 shows, as an exemplary embodiment, a flasher unit 10 "belonging to the electrical equipment for motor vehicles. A component of the flasher unit 10" is a semiconductor circuit 10, the core of which consists of an integrated circuit. The semiconductor circuit 10 has four connection terminals 1, 2, 3, 4 and the flasher unit 10 "connection terminals 1", 2 "and 3". From the terminal 1 'to the terminal 1, a feed line leads Z 1, of egg terminal 2' to the terminal 2 a supply line Z 3 with a protective diode D., and of the terminal 3 'to the terminal 3 a supply line Z., with a protective resistor RS 3 .
Die Klemme 3" ist außerdem mit der Klemme 4 durch eine Leitung 11 verbunden, in der ein Relaislontakt 12 angeordnet ist. Von der Klemme 1 zur Klemme 4 führt eine Leitung 13, i^ weiener ein Wi- «!erstand RK angeordnet ist. An die Klemme 1" ist tier Pluspol, an die Klemme 2" der Minuspol einer K ruf !fahrzeugbatterie 14 angeschlossen. Bestandteil der Blinkeinrichtung sind außer dem Blinkgeber 10" der an der Lenksäule des Kraftfahrzeugs angebrachte Bünkgeberschaller 15 und je zwei Signallampen 16 und 17, welche auf der linken bzw. rechten Seite des Kraftfahrzeuges angeordnet sind. Die beiden festziehenden Kontakte des Blinkgeberschalters 15 sind dabei an jeweils eine Klemme der Signallampen 16 und 17 angeschlossen, während die beiden anderen Anschlußklemmen der Signallampen 16.. 17 gemeinsam an den Minuspol einer Kraftfahrzeugbatteric 14 »!!geschlossen sind. Der bewegliche Kontaktarm des Blinkgcberschalters 15 ist mit der Anschlußklemme 3" des Blinkgebers 10" verbunden.The terminal 3 "is also connected to the terminal 4 by a line 11 in which a relay contact 12 is arranged. A line 13 leads from the terminal 1 to the terminal 4, in which a resistor RK is arranged Terminal 1 "is the positive pole, and terminal 2" is the negative pole of a call! vehicle battery 14. In addition to the flasher unit 10 ", the flasher device 15 attached to the steering column of the motor vehicle and two signal lamps 16 and 17 each are part of the flasher device are arranged on the left or right side of the motor vehicle. The two tightening contacts of the flasher switch 15 are each connected to a terminal of the signal lamps 16 and 17, while the other two terminals of the signal lamps 16 .. 17 are jointly connected to the negative pole of a motor vehicle battery 14 »!!. The movable contact arm of the flasher switch 15 is connected to the terminal 3 "of the flasher 10".
Du.> Wesentliche bei dem im vorangehenden beschriebenen Ausführungsbeispiel ist eine Begrenzung des Stroms in den Zuleitungen bei falschem Anschließen. Dadurch kann auch bei falschem Anschließen, bei dem parasitäre Elemente der integrierten Schaltung in Durchlaßrichtung gepolt sein können, eine unzulässige hohe Erwärmung, die zur Zerstörung der Baueinheit führen kann, vermieden werden.You.> The essentials of what has been described above The exemplary embodiment is a limitation of the current in the supply lines in the event of incorrect connection. This can cause parasitic elements of the integrated Circuit can be polarized in the forward direction, an impermissible high temperature rise leading to destruction the assembly can lead to be avoided.
Die SchutzcPndcn und Schutzwiderstände, deren Anwendung in dem beschriebenen Ausführungsbeispicl angedeutet Lt, lassen sich auch zweckmäßig als Teile der integrierten Schaltung ausführen. Die Dioden können dabei als sogenannte Emitter-Dioden, Koilcktordioden, Stopperdioden und/oder Substraldioclcn ausgebildet sein. Welche dieser Dioden vorteilhafter b/w. überhaupt cinsetzbar ist. hängt von den Forderungen an die Sperreigenschaften der Dioden im Zusammenhang mit den Parametern des Herslellungsprozcsscs der integrierten Schaltung ab. Substratdioden mit sehr guten elektrischen Eigenschaften lassen sich durch besonders starke p- bzw. n-Doticrung auf der Unterseite des Substrats herstellen.The SchutzcPndcn and protective resistors, their Application in the example described indicated Lt, can also be carried out expediently as parts of the integrated circuit. The diodes can be used as so-called emitter diodes, coil diodes, stopper diodes and / or substrate diodes be trained. Which of these diodes is more advantageous b / w. can be used at all. depends on the requirements for the blocking properties of the diodes in connection with the parameters of the manufacturing process the integrated circuit. Substrate diodes with very good electrical properties can be produced by particularly strong p or n doping on the underside of the substrate.
Ein Beispiel für die Anordnung eines Schutz-Widerstandes innerhalb der monolithisch integrierten Schaltung ist :n Fig. 2 dargestellt. Innerhalb einer Schicht 18 liegt eine Anschlußfläche 19, die der Anschlußklemme 3" in F i g. I entspricht. Von der Anschlußflüche 19 geht eine Verbindung zu einem Anschlußflcck 23 eines integrierten Widerstandes 20 innerhalb einer n-dotierten Wanne 21 für Widerstände. Der Anschlußkontakt für diese Wanne ist mit 22 bezeichnet. Dieser integrierte Widerstand entspricht dem Widerstand /«,,in Fig. 1. Bei falschem Anschluß, d. h. bei falscher Polling kann die p-Diffusionszone des Widerstandes 20 positiv gegen die η-Wanne werden, wodurch eine Polung in Durchlaßrichtung eintritt und Strom von dem Anschlußkontakt 19 nach dem Anschlußkontakt 22 fließen Uann. Damit dieser Strom begrenzt wird, ist der Abstand zwischen der Fläche 23 und der Fläche 22 so groß zu halten, daß sich ein genügend großer Widerstand zwischen den Flächen ausbilden kann. Strom und Verlustleistung können somit also hinreichend klein gehalten werden, wenn der Abstand« in Fig. 2 hinreichend groß ist. Wenn der Abstand α zu klein und auf direktem Wege nicht vergrößerbar ist, so kann, wie in Fig. 3 angedeutet ist, durch mit der Isolierungsdiffusion eindiffundierle Trennwände 24 ein Stromumweg erzwungen werden.N 2 is shown. An example of the arrangement of a protection resistor within the monolithic integrated circuit. Within a layer 18 there is a connection area 19 which corresponds to the connection terminal 3 ″ in FIG this trough is denoted by 22. This integrated resistance corresponds to the resistance / "" in FIG Passage direction enters and current flows from the connection contact 19 to the connection contact 22. In order for this current to be limited, the distance between the surface 23 and the surface 22 must be kept so large that a sufficiently large resistance can develop between the surfaces and power loss can thus be kept sufficiently small if the distance in Fig. 2 is sufficiently large. If the distance α is too small un d cannot be increased in a direct way, as is indicated in FIG. 3, a current detour can be forced through partition walls 24 which diffuse in with the insulation diffusion.
Es ist z. B. auch i.oglich, daß unterhalb der Wanne für Widerstände bereits eine vergrabene Schicht angeordnet ist. Durch diese gut leitfähige vergrabene Schicht würde der sich zwischen dem Anschlußfleck 22 der Wanne 21 und den Anschlußfleck 23 des Widerstandes 20 bei Falschpolung ausbildende Widerstand praktisch kurzgeschlossen und damit wirkungslos. Deshalb ist bei derartigen Anordnungen darauf zu achten, daß der Abstand zwischen dem Rand der vergrabenen Schicht unter der Widerstandswanne und dem Anschlußfleck 23 des Widerstandes 20 bzw. dem Rand einer unter dem Anschlußfleck 23 angeordneten vergrabenen Schicht ausreichend groß ist, so daß eine hinreichende Strombegrenzung durch den sich bildenden Widerstand gegeben ist.It is Z. B. also possible that below the Well for resistors a buried layer is already arranged. Because of this highly conductive buried layer would be between the pad 22 of the well 21 and the pad 23 of the resistor 20 practically short-circuited and the resistor forming the wrong polarity thus ineffective. Therefore, care must be taken with such arrangements that the distance between the edge of the buried layer under the resistor well and the connection pad 23 of the resistor 20 or the edge of a buried layer arranged under the connection pad 23 is sufficiently large so that there is sufficient current limitation due to the resistance that forms is.
Weiterhin ist es möglich, eine separate Wanne 25 für einen Begrcnzungswiderstand 2o vorzusehen, wobei die Wanne durch eine Trennwand 27 vom übrigen Teil der monolithisch integrierten Schaltung abgetrennt ist. Wesentlich ist dabei, daß, wie in Fi g. 4 dargestellt, die Wanne 25 nicht direkt mit dem die Wanne gegen das Substrat in Sperrichtung polendcn Potential verbunden ist, d. h. daß die Wanne 25 nicht direkt konlakliert ist, sondern das Sperrpotential zwischen Wanne 25 und (Substrat) Trennwand 27 über den zwischen dem Widerstand 26 und der Wanne 25 auftretenden pn-Übcrgang gebildet wird.It is also possible to provide a separate trough 25 for a limiting resistor 2o, with the tub separated by a partition 27 from the rest of the monolithic integrated circuit is. It is essential that, as in Fi g. 4 shown, the tub 25 is not directly connected to the Well is connected to the substrate in the reverse direction of the potential, d. H. that the tub 25 is not is directly concluded, but the blocking potential between the tub 25 and (substrate) partition wall 27 above the pn junction occurring between the resistor 26 and the well 25 is formed.
Es ist selbstverständlich, daß in dieser Wanne auch andere Widerstände der Schaltung untergebracht sein können.It goes without saying that other resistances of the circuit can also be accommodated in this tub can.
Um die Gefahr zu vermeiden, daß :;ich bei falschem Anschließen der monolithisch integrierten Schaltung ein in Durchlaßrichtung gepoltcr parasitärer onp-Substrattransistor ergibt, der, wie in Fi g. 5 dargestellt ist, durch eine p-Zone28 (Widerstand), die det.i Emitter einspricht, eine n-Wanne 29. die der Basis entspricht, und das p-Substrat30, das dem Kollektor entspricht, entsteht, ist eine sogenannte vergrabene Schicht 31, die sehr stark n-dol;iert ist, unter dem Widerstand 28 bzw. einem Teil des Widerstandes angeordnet. Diese vergrabene Schicht 31 vermindert FehLströmc zum Substrat.In order to avoid the risk that:; I if the monolithically integrated Circuit results in a forward-polarized parasitic onp substrate transistor which, as shown in FIG. 5 is represented by a p-zone 28 (resistance), which corresponds to the det.i emitter, an n-well 29. that of the Base corresponds to, and the p-substrate30, which is the collector corresponds, arises, is a so-called buried layer 31, which is very strongly n-dol; iert, under the resistor 28 or a part of the resistor arranged. This buried layer 31 is reduced Incorrect flow to the substrate.
In F i g. 6 ist dargestellt, wie unter einer Anschlußflächc 32 eine Schutzdiode vorgesehen sein kann, die als Stibstratdiode aufgebaut ist und durch die p-Schicht 33 und die n-Schicht 34 gebildet ist.In Fig. 6 is shown as under a pad c 32 a protective diode can be provided, which is constructed as a Stibstratdiode and through which p-layer 33 and the n-layer 34 is formed.
In Fig. 7 ist eine weitere Ausgestaltung der Erfindung dargestellt; eine in einer Zuleitung vorgesehene Schutzdiode 35 ist mit einem Kondensator 36 korn-In Fig. 7 is a further embodiment of the invention shown; a protective diode 35 provided in a supply line is grained with a capacitor 36
biniert und ergibt so ein Siebglied gegen kurzzeitige Spannungsüberhöhungen bzw. -Einbrüche im Bordnetz eines Kraftfahrzeuges. Die Anordnung in F i g. 7 ist deshalb besonders günstig, da einerseits bei kurzzeitigen Spannungsüberhöhungen der Strom durch die Diode 35 infolge deren Trägheit aufrechterhalten bleibt, andererseits aber bei Spannungscinbrüchen keine in dem Kondensator gespeicherte Ladung über die Diode 35 ins Bordnetz des Kraftfahrzeuges abfließen kann.and thus results in a filter element against brief voltage increases or dips in the on-board network of a motor vehicle. The arrangement in FIG. 7 is particularly favorable because on the one hand for short-term Voltage overshoots maintain the current through the diode 35 due to its inertia remains, but on the other hand no charge stored in the capacitor in the event of voltage drops can flow through the diode 35 into the electrical system of the motor vehicle.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (6)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691925820 DE1925820B2 (en) | 1969-05-21 | 1969-05-21 | INTEGRATED SEMI-CONDUCTOR CIRCUIT PROTECTED AGAINST CONNECTION WITH INCORRECT POLARITY |
FR6945757A FR2031054A5 (en) | 1969-05-21 | 1969-12-31 | |
CH574270A CH521037A (en) | 1969-05-21 | 1970-04-17 | Electrical circuit arrangement with at least one electronic component |
GB2436970A GB1316596A (en) | 1969-05-21 | 1970-05-20 | Integrated circuits |
ES379830A ES379830A1 (en) | 1969-05-21 | 1970-05-20 | Integrated circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691925820 DE1925820B2 (en) | 1969-05-21 | 1969-05-21 | INTEGRATED SEMI-CONDUCTOR CIRCUIT PROTECTED AGAINST CONNECTION WITH INCORRECT POLARITY |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1925820A1 DE1925820A1 (en) | 1970-12-03 |
DE1925820B2 true DE1925820B2 (en) | 1972-05-04 |
Family
ID=5734755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691925820 Pending DE1925820B2 (en) | 1969-05-21 | 1969-05-21 | INTEGRATED SEMI-CONDUCTOR CIRCUIT PROTECTED AGAINST CONNECTION WITH INCORRECT POLARITY |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH521037A (en) |
DE (1) | DE1925820B2 (en) |
ES (1) | ES379830A1 (en) |
FR (1) | FR2031054A5 (en) |
GB (1) | GB1316596A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1436112A (en) * | 1972-04-20 | 1976-05-19 | Cav Ltd | Direction indicator system for road vehicles |
JPS5148949U (en) * | 1974-10-09 | 1976-04-13 | ||
IT1092128B (en) * | 1977-01-27 | 1985-07-06 | Bosch Gmbh Robert | ELECTRIC SAFETY DEVICE FOR TRUNKS OF CONDUCTIVE TRACKS IN A USER ARRANGEMENT |
-
1969
- 1969-05-21 DE DE19691925820 patent/DE1925820B2/en active Pending
- 1969-12-31 FR FR6945757A patent/FR2031054A5/fr not_active Expired
-
1970
- 1970-04-17 CH CH574270A patent/CH521037A/en not_active IP Right Cessation
- 1970-05-20 ES ES379830A patent/ES379830A1/en not_active Expired
- 1970-05-20 GB GB2436970A patent/GB1316596A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2031054A5 (en) | 1970-11-13 |
DE1925820A1 (en) | 1970-12-03 |
CH521037A (en) | 1972-03-31 |
ES379830A1 (en) | 1972-09-16 |
GB1316596A (en) | 1973-05-09 |
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