EP0093125B1 - Diviseur de tension en technique a couches minces ou epaisses - Google Patents

Diviseur de tension en technique a couches minces ou epaisses Download PDF

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Publication number
EP0093125B1
EP0093125B1 EP82903234A EP82903234A EP0093125B1 EP 0093125 B1 EP0093125 B1 EP 0093125B1 EP 82903234 A EP82903234 A EP 82903234A EP 82903234 A EP82903234 A EP 82903234A EP 0093125 B1 EP0093125 B1 EP 0093125B1
Authority
EP
European Patent Office
Prior art keywords
voltage divider
resistance zone
resistance
tap
region
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
Application number
EP82903234A
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German (de)
English (en)
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EP0093125A1 (fr
Inventor
Lothar Schmidt
Ulrich Goebel
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Robert Bosch GmbH
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Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0093125A1 publication Critical patent/EP0093125A1/fr
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Publication of EP0093125B1 publication Critical patent/EP0093125B1/fr
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
    • H01C17/24—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material

Definitions

  • the invention relates to a voltage divider according to the preamble of the independent claims 1 and 12.
  • Such thin-film or thick-film technology voltage dividers are already known from the document DE-B-25 18 969, in which the current-carrying ohmic voltage divider resistor consists of two through metallization connected individual resistors. At the same time, the metallization forms the tap used to tap the desired divider voltage.
  • these voltage dividers have the disadvantage that they can only be adjusted to a desired value by increasing the individual resistors that make up the voltage divider resistor, so that the total resistance of the divider and the current and potential distribution in the voltage divider resistor itself, to be changed.
  • the voltage divider according to the invention with the characterizing features of claim 1 has the advantage that a certain equipotential line can be selected at the tap electrode of the tap by moving the change required for the adjustment into the second resistance area belonging to the tap, without the actual voltage divider resistance and its potential distribution must be changed significantly. Further advantageous developments of the invention result from subclaims 2 to 11.
  • Claim 12 provides, as an alternative to claim 1, a second advantageous solution to the adjustment problem with a single, contiguous voltage divider resistor, which is also used as a tap.
  • the voltage divider shown in FIGS. 1 and 2 contains a current-carrying ohmic voltage divider resistor R, (FIG. 2), which consists of a single coherent, first layer of resistance 10, which is constructed using layer technology, a connecting conductor 11 serving for current supply and a connecting conductor 12 serving for current dissipation, wherein the connecting conductors 11 and 12 are designed as conductor tracks (Fig. 1).
  • the first resistance region 10 forms a rectangular region whose length is greater than its width.
  • the connecting conductors 11 and 12 are attached to the narrow sides of this rectangular region and overlap with the first resistance region 10 along these narrow sides.
  • a tap is also provided for tapping off the desired divider voltage.
  • This tap consists of a second resistance region 13, which is implemented using layer technology, and of a removal electrode 14 attached to it, which is designed as a conductor track.
  • the two resistance regions 10 and 13 abut one another in a region 15 which is located on one of the two long sides of the resistance layer 10 in such a way that good electrical contact is established in this region 15 between these two resistance regions 10 and 13.
  • a first laser or sandblast cut 16 and a second laser or sandblast cut 17 are introduced into the second resistance region 13.
  • the two cuts 16 and 17 run parallel to the long side of the first resistance region 10, that is to say cut the equipotential lines formed during operation of the voltage divider.
  • the two cuts 16 and 17 are carried out until the potential at the pick-up electrode 14 of the tap has reached the desired value.
  • the effective value of the resistance R is influenced to a relatively great extent by the adjustment. If this effect interferes, the material of the second resistance region 13 according to the invention becomes more high-resistance than the material of the first Resistance region 10 is selected so that the effective voltage divider resistance formed by the first resistance region 10 and its potential conversion by the adjustment are not be changed significantly.
  • FIG. 3 shows a second exemplary embodiment of a voltage divider according to the invention, in which a tap 13, 14 is attached to one of the two long sides of the first resistance region 10 and two taps 13, 14 are attached to the other long side of the first resistance region 10. The adjustment is carried out in the same way as in the exemplary embodiment according to FIGS. 1 and 2.
  • the first resistance region 10 is designed as an elongated rectangle, as in the exemplary embodiments according to FIGS. 1 and 3.
  • the second resistance region 13 is designed in the form of a strip.
  • the second resistance region 13 runs parallel to the first resistance region 10 and is connected to the first resistance region 10 via a contact zone 15.
  • the contact zone 15 extends over the entire length of the first resistance region 10.
  • a laser or sandblast cut 16 is provided in the second resistance region 13, which runs parallel to the longitudinal direction of the two resistance regions 10, 13.
  • the take-off electrode 14 for the divider voltage to be tapped is designed differently in the exemplary embodiments according to FIGS. 4 to 6.
  • the depth of the laser cut 16 mainly determines the level of the divider voltage to be picked up at the removal electrode 14.
  • the divider voltage tapped at the take-off electrode 14 can be between 0 and 100% of the voltage applied to the connecting conductors 11 and 12.
  • the different choice of the geometry of the removal electrode 14 enables the adjustment characteristic curve to be adapted to the respective requirement.
  • the exemplary embodiment according to FIG. 7 is used to generate arbitrarily selectable, monotonous adjustment characteristic curves and to compensate for the non-linearities of a circuit.
  • This exemplary embodiment differs from the exemplary embodiments according to FIGS. 4 to 6 in that the first resistance region 10 forming the ohmic voltage divider resistor R, deviates from the range widened its first connecting conductor 11 to the area of its second connecting conductor 12.
  • the delimitation of both resistance areas 10 and 13 is rectilinear in the contacting zone 15 and the second resistance area 13 is in the form of a strip.
  • the laser cut 16 runs in the second resistance region 13 parallel to its longitudinal direction.
  • the second resistance region 13 extends over the full length of the first resistance region 10 and at the upper end a little further, a voltage between 0 and 100% of the voltage between the connecting conductors 11 and 12 can also be picked up at the take-off electrode 14 .
  • the entire voltage divider consists of a single resistance layer 110.
  • This resistance layer 110 also forms the current-carrying ohmic voltage divider resistor R 1 and the tap 114. 112 connected area.
  • the connecting conductors 111, 112 can be designed as bond wires.
  • a cut 116 is made in the coherent resistance layer 110, which runs between the part of the layer forming the tap 114 and the region of this layer which serves to supply or discharge current, and so on is carried far until the potential at tap 114 has reached the desired value.
  • the divider voltage tapped at the tap 114 can also be between 0 and 100% of the voltage applied to the connecting conductors 111 and 112.
  • the invention is not limited to the exemplary embodiments described with reference to the drawing.
  • the two resistance regions 10 and 13 can form a single, coherent region if the two regions 10 and 13 consist of the same material. In this case, the contact zone 15 can be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Non-Adjustable Resistors (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Adjustable Resistors (AREA)

Claims (12)

1°) Diviseur de tension réalisée en technique en couches minces ou en couches épaisses, ayant une résistance (R1) ohmique, de diviseur de tension, traversee par le courant, avec au moins une prise servant à fournir la tension divisée, souhaitée, un conducteur de raccordement (11, 12) respectif pour l'alimentation en courant et pour la sortie de courant éetant relié à la zone de la résistance (R,), ohmique de division de tension, caractérisé en ce que la résistance ohmique (R,) de division de tension comporte une seule zone résistante (10), en une seule partie, la prise se composant d'une seconde zone résistante (13), adjacente à la première zone résistante (13) entre les deux zones ci-dessus et d'une électrode de prise (14) réalisée sur cette zone, et en ce que sur cette seconde zone réstante (13), on réalise une modification à l'aide d'une entaille au laser ou par un jet de sable (16, 17) coupant les lignes équipotentiells obtenues lors de la mise en oeuvre du diviseur de tension (R1, R2), jusqu'à ce que la longueur de l'entaille donne la valeur souhaitée du potentiel sur l'electrode de sortie (14) de la prise.
2°) Diviseur de tension selon la revendication I, caractéerisé en ce que les parties de la première zone résistante (10) servant à l'alimentation en courant et à la sortie de courant sont les extrémités opposées de cette zone résistante (10) et en ce que les conducteurs de raccordement (11, 12) reliés à ces extrémités sont des chemins conducteurs.
3°) Diviseur de tension selon la revendication 2, caractérisé en ce que les chemins conducteurs (11,12) qui sont reliés aux segments d'extremite de la premiè zone résistante (10) s'etendent sur toutes ces extrémités.
4° Diviseur de tension selon l'une des revendications 1 à 3, caractérisé en ce que le matériau de la seconde zone résistante (13) est plus fortement ohmique que le matériau constituant la première zone résistante (10) pour ne pas modifier de façon importante la résistance efficace (R,) de division de tension de la première zonerésistante (10) et sa répartition de potentiel lors du calibrage.
5°) Diviseur de tension selon l'une des revendications 1 à 4, caractérisé en ce que la première zone résistante (10) et la seconde zone résistante (13) sont réalisées dans des matériaux différents et sont reliées de façon à se chevaucher légèrement, de façon reciproque.
6°) Diviseur de tension selon l'une des revendications 1 à 5, caractérisé en ce que la première zone résistante (10) qui forme la résistance ohmique (R,) du diviseur de tension forme une bande de préférence rectangulaire qui s'étend de la partie correspondant au premier conducteur de raccordement (11) jusqu'à la partie correspondant à son second conducteur de raccordement (12).
7°) Diviseur de tension selon la revendication 6 ayant au moins une prise, caractérisé en ce que la partie (15) en liaison avec la première zone résistante (10) et qui appartient à la seconde zone résistante (13) de chaque prise s'étend seulement sur une partie de la longueur de la première zone résistante (10).
8°) Diviseur de tension selon la revendication 7, caractérisé en ce qu'il est prévu au moins une prise (13, 14) sur chacun des grands côtés de la première zone résistante (10).
9°) Diviseur de tension selon la revendication 6, caractérisé en ce que la seconde zone résistante (13) forme une bande qui est en liaison avec la première zone résistante (10) sur toute la longueur de cette zone en forme de bande, et en ce que pour le calibrage, il est prévu une entaille (16) au laser ou au jet de sable dans la seconde zone résistante, entaille qui est parallèle à la direction longitudinale de la première , zone réstante (10).
10°) Diviseur de tension selon l'une ' des revendications 1 à 5, caractérisé en ce que la première zone résistante (10) qui forme la résistance ohmique (R1) du diviseur de tension chanüe de largeur entre sa partie correspondant au premier conducteur de raccordement (11) et sa partie correspondant au second conducteur de raccordement (12).
11°) Diviseur de tension selon la revendication 10, caractérisé en ce que la premièe zone résistante (10) est délimitée en ligne droite sur un côté allant de la partie correspondant à son premier conducteur de raccordement (11) jusqu'à la partie correspondant à son second conducteur de raccordement (12), en ce que la seconde zone résistante (13) est en forme de bande et le long de tout un côé, cette zone est en liaison avec la première zone resistante (10), et en ce que pour le calibrage, il est prévu une entaille (16) dans la seconde zone résistante (13), entaille qui est parallèle a sa direction longitudinale.
12°) Diviseur de tension calibrable réalisé en technique des couches minces ou en technique des couches épaisses, avec une résistance ohmique (R,) de diviseur de tension, traversée par le courant et au moins une prise (114) servant à fournir la tension de diviseur, souhaitée, avec une partie servant à l'alimentation en courant et à la sortie de courant, et qui est reliée à un conducteur de raccordement (111, 112) sur la résistance ohmique (R1) du diviseur de tension, caractérisé en ce que la résistance ohmique (R1) de diviseur de tension forme une seule couche résistante (110) en une seule pièce, et la prise (114) fait partie de la couche résistante (110) en une seule pièce qui forme la résistance (R1) du diviseur de tension et en ce que pour fournir la tension de diviseur, il est prévu sur la prise (114) une entaille (116) faite au laser ou au jet de sable, dans la couche résistante (110), maintenue réunie et qui passe entre la partie de cette couche (110) formant la prise (114) et la partie de cette couche (110) servant à l'alimentation en courant et à la sortie de courant, cette entaille ayant une longueur telle que sur la prise (114) on obtienne le potentiel de valeur souhaitée (figure 8).
EP82903234A 1981-11-07 1982-10-28 Diviseur de tension en technique a couches minces ou epaisses Expired EP0093125B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3144252 1981-11-07
DE19813144252 DE3144252A1 (de) 1981-11-07 1981-11-07 Spannungsteiler in duenn- oder dickschichttechnik

Publications (2)

Publication Number Publication Date
EP0093125A1 EP0093125A1 (fr) 1983-11-09
EP0093125B1 true EP0093125B1 (fr) 1986-02-26

Family

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EP82903234A Expired EP0093125B1 (fr) 1981-11-07 1982-10-28 Diviseur de tension en technique a couches minces ou epaisses

Country Status (5)

Country Link
US (1) US4531111A (fr)
EP (1) EP0093125B1 (fr)
JP (2) JPS58501890A (fr)
DE (2) DE3144252A1 (fr)
WO (1) WO1983001708A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601135C1 (de) * 1996-01-13 1997-05-28 Itt Ind Gmbh Deutsche Halbleiterstruktur
US6111494A (en) * 1996-08-03 2000-08-29 Robert Bosch Gmbh Adjustable voltage divider produced by hybrid technology

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475099A (en) * 1983-06-27 1984-10-02 Analogic Corporation Voltage divider
US4626822A (en) * 1985-05-02 1986-12-02 Motorola, Inc. Thick film resistor element with coarse and fine adjustment provision
US4792782A (en) * 1985-09-23 1988-12-20 Hammond Robert W Apparatus and method for providing improved resistive ratio stability of a resistive divider network
GB2181009B (en) * 1985-09-23 1989-11-29 Fluke Mfg Co John Apparatus and method for providing improved resistive ratio stability of a resistive divider network
DE3813627C2 (de) * 1988-04-22 1997-03-27 Bosch Gmbh Robert Verfahren zum Funktionsabgleich einer elektronischen Schaltung
US5198794A (en) * 1990-03-26 1993-03-30 Matsushita Electric Industrial Co., Ltd. Trimmed resistor
DE4039594C2 (de) * 1990-12-12 1994-01-20 Benning Elektrotechnik Verfahren zum Eichen der Spannungsschwellen bei einem Spannungsprüfer zur stufenweisen insbesondere optischen Anzeige einer Spannung
JP3049843B2 (ja) * 1991-04-26 2000-06-05 株式会社デンソー 抵抗体電極構造の形成方法
US5506494A (en) * 1991-04-26 1996-04-09 Nippondenso Co., Ltd. Resistor circuit with reduced temperature coefficient of resistance
US5287083A (en) * 1992-03-30 1994-02-15 Dale Electronics, Inc. Bulk metal chip resistor
US5929746A (en) * 1995-10-13 1999-07-27 International Resistive Company, Inc. Surface mounted thin film voltage divider
DE29703892U1 (de) * 1997-03-04 1997-05-07 ECR GmbH Elektronische Bauelemente, 90552 Röthenbach Potentiometer in Dickschichttechnik, Leiterplatte und Schleifer hierfür
DE19848930C2 (de) * 1998-10-23 2000-09-21 Moeller Gmbh Präzisionswiderstand
US6489881B1 (en) * 1999-10-28 2002-12-03 International Rectifier Corporation High current sense resistor and process for its manufacture
DE102006015479A1 (de) * 2006-04-03 2007-10-04 Conti Temic Microelectronic Gmbh Messwiderstand sowie Verfahren zum Abgleichen eines Messwiderstandes
US11988688B2 (en) * 2019-05-29 2024-05-21 Mitsubishi Electric Corporation Voltage dividing device
CN114914041A (zh) * 2022-05-19 2022-08-16 西安高研电器有限责任公司 一种共享基体的电阻或电阻分压器

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Publication number Priority date Publication date Assignee Title
DE2518969B1 (de) * 1975-04-29 1976-12-30 Hermsdorf Keramik Veb Leiterbahn und kontaktflaeche fuer duennschichtschaltungen
AU502302B2 (en) * 1975-05-12 1979-07-19 Gillette Company, The Wet shaving system
US4100525A (en) * 1976-05-10 1978-07-11 Allen-Bradley Company Single setting variable resistor
JPS5622548A (en) * 1979-08-01 1981-03-03 Hitachi Ltd Armature coil for electrical rotary machine
US4284970A (en) * 1979-08-09 1981-08-18 Bell Telephone Laboratories, Incorporated Fabrication of film resistor circuits
US4270268A (en) * 1979-12-07 1981-06-02 The Gillette Company Razor blade assembly
US4475099A (en) * 1983-06-27 1984-10-02 Analogic Corporation Voltage divider

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601135C1 (de) * 1996-01-13 1997-05-28 Itt Ind Gmbh Deutsche Halbleiterstruktur
US6111494A (en) * 1996-08-03 2000-08-29 Robert Bosch Gmbh Adjustable voltage divider produced by hybrid technology

Also Published As

Publication number Publication date
JPH04120201U (ja) 1992-10-27
WO1983001708A1 (fr) 1983-05-11
US4531111A (en) 1985-07-23
DE3269452D1 (en) 1986-04-03
EP0093125A1 (fr) 1983-11-09
DE3144252A1 (de) 1983-05-19
JPS58501890A (ja) 1983-11-04

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