EP0093125A1 - Diviseur de tension en technique a couches minces ou epaisses. - Google Patents

Diviseur de tension en technique a couches minces ou epaisses.

Info

Publication number
EP0093125A1
EP0093125A1 EP82903234A EP82903234A EP0093125A1 EP 0093125 A1 EP0093125 A1 EP 0093125A1 EP 82903234 A EP82903234 A EP 82903234A EP 82903234 A EP82903234 A EP 82903234A EP 0093125 A1 EP0093125 A1 EP 0093125A1
Authority
EP
European Patent Office
Prior art keywords
voltage divider
resistance
resistance region
region
tap
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.)
Granted
Application number
EP82903234A
Other languages
German (de)
English (en)
Other versions
EP0093125B1 (fr
Inventor
Lothar Schmidt
Ulrich Goebel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0093125A1 publication Critical patent/EP0093125A1/fr
Application granted granted Critical
Publication of EP0093125B1 publication Critical patent/EP0093125B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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 main claim.
  • the voltage divider according to the invention with the characterizing features of the main claim has the advantage that a certain equipotential line can be selected on the pickup electrode of the tap by moving the change required for the adjustment in the second resistance area belonging to the tap, without the actual one thereby Voltage divider resistance and its potential distribution must be changed significantly.
  • a particularly advantageous type of change applied to the second resistance area for the purpose of comparison results from sub-claim 2. Further advantageous developments of the invention result from the further subclaims 3 to 12.
  • dependent claim 13 provides a second advantageous solution to the comparison problem stood with a single coherent voltage divider, which is also used as a tap.
  • FIG. 1 shows the basic variant of a voltage divider according to the invention implemented in thick-film technology in a top view
  • FIG. 2 shows the equivalent circuit diagram of the voltage divider shown in FIG. 1, Figure 3 to Figure 8 further variants of voltage dividers according to the invention executed in thick-film technology in plan view.
  • the voltage divider shown in Figures 1 and 2 contains a current-carrying ohmic voltage divider resistor R. (Fig. 2), which consists of a single coherent, layered design of the first resistance layer 10, 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 formed as conductor tracks (Fig. 1).
  • the first resistance region 10 forms a rectangular region, the length of which is greater than the 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 embodied in layer technology, and of a removal electrode 1 h 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.
  • first laser or sandblast cut is made in the second resistance region 13 16 and a second laser or sandblast cut 17 are introduced.
  • 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 1 4 of the tap has reached the desired value.
  • the effective value of the resistance R 1 is influenced relatively strongly by the adjustment. If this effect interferes, the material of the second resistance region 13 is selected with a higher resistance than the material of the first resistance region 10, so that the effective voltage divider resistance formed by the first resistance region 10 and its potential distribution are not significantly changed by the adjustment.
  • FIG. 3 shows a second exemplary embodiment of a voltage divider according to the invention, in which one tap 13, 14 and one tap 13, 14 are attached to one of the two long sides of the first resistance region 10 and two taps 13, 14 to the other long side.
  • 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, as in the exemplary embodiments according to FIGS. 1 and 3, is formed as a rectangular rectangle.
  • the second resistance region 13, like the first resistance region 10, is designed in the form of a strip.
  • the second resistance area 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 removal electrode 1 4 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 selection 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 the important 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 1 deviates from the range of its first connecting conductor 11 widened to the area of its second connecting conductor 12.
  • the limitation of both resistance areas 10 and 13 is linear in the contact zone 15 and the second resistance area 13 is strip-shaped.
  • the laser cut 16 runs in the second counter Stand area 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 .. and tap 114.
  • the resistance layer 110 has one for power supply and one for power dissipation, each with a connecting conductor 111, 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 1 14 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)
  • Adjustable Resistors (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

On propose un diviseur de tension en technique à couches minces ou épaisses ajustable avec une résistance ohmique traversée par un courant et au moins un moyen de prélèvement de la tension partielle. La résistance ohmique contient une première zone de résistance (10) de diviseur de tension qui contient une zone d'arrivée de courant et une zone de sortie de courant munies chacune d'un conducteur (11, 12). Le dispositif de prélèvement est constitué par une deuxième zone de résistance (13) située entre les deux zones et connectée avec la première zone de résistance (10) ainsi que par une électrode de prélèvement (14). Dans cette deuxième zone de résistance (13) on aménage deux fentes (16, 17) qui traversent les lignes équipotentielles qui se forment lors du fonctionnement du diviseur et on les prolonge suffisamment pour que sur l'électrode (14) du dispositif de prélèvement le potentiel ait la valeur désirée (Fig. 1).
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 true EP0093125A1 (fr) 1983-11-09
EP0093125B1 EP0093125B1 (fr) 1986-02-26

Family

ID=6145844

Family Applications (1)

Application Number Title Priority Date Filing Date
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)

Families Citing this family (19)

* 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
US5506494A (en) * 1991-04-26 1996-04-09 Nippondenso Co., Ltd. Resistor circuit with reduced temperature coefficient of resistance
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
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
DE19601135C1 (de) * 1996-01-13 1997-05-28 Itt Ind Gmbh Deutsche Halbleiterstruktur
DE19631477A1 (de) * 1996-08-03 1998-02-05 Bosch Gmbh Robert In Hybridtechnik hergestellte abgleichbare Spannungsteiler-Anordnung
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
JP7069414B2 (ja) * 2019-05-29 2022-05-17 三菱電機株式会社 分圧装置
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8301708A1 *

Also Published As

Publication number Publication date
JPS58501890A (ja) 1983-11-04
DE3144252A1 (de) 1983-05-19
DE3269452D1 (en) 1986-04-03
WO1983001708A1 (fr) 1983-05-11
US4531111A (en) 1985-07-23
EP0093125B1 (fr) 1986-02-26
JPH04120201U (ja) 1992-10-27

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