EP2939032A1 - Pointe de sonde de mesure - Google Patents

Pointe de sonde de mesure

Info

Publication number
EP2939032A1
EP2939032A1 EP13818659.8A EP13818659A EP2939032A1 EP 2939032 A1 EP2939032 A1 EP 2939032A1 EP 13818659 A EP13818659 A EP 13818659A EP 2939032 A1 EP2939032 A1 EP 2939032A1
Authority
EP
European Patent Office
Prior art keywords
measuring
conductors
conductor
contact
base body
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.)
Withdrawn
Application number
EP13818659.8A
Other languages
German (de)
English (en)
Inventor
Roland NEUHAUSER
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.)
Rosenberger Hochfrequenztechnik GmbH and Co KG
Original Assignee
Rosenberger Hochfrequenztechnik GmbH and Co KG
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 Rosenberger Hochfrequenztechnik GmbH and Co KG filed Critical Rosenberger Hochfrequenztechnik GmbH and Co KG
Publication of EP2939032A1 publication Critical patent/EP2939032A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/06772—High frequency probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R3/00—Apparatus or processes specially adapted for the manufacture or maintenance of measuring instruments, e.g. of probe tips

Definitions

  • the invention relates to a measuring tip and a system for variable design of such a measuring tip.
  • Measuring probes are used, for example, to test the functionality and the electrical properties of printed circuit boards, for which purpose they are connected via connecting contacts to a suitable measuring device.
  • Generic measuring tips for this purpose comprise at least one main body having a supporting function, to which at least two measuring conductors, regularly in the form of contact fingers projecting freely into the room, are fastened.
  • the measuring conductors are electrically or directly connected directly to the terminal contacts likewise fastened to the base body.
  • Such a measuring tip is known, for example, from EP 2 409 166 B1.
  • the measuring conductors are connected in a coplanar orientation firmly with one or two insulating parts.
  • This solid compound is done in practice regularly by gluing.
  • the unit of measuring conductors and insulating part (s) is arranged in a recess of the base body and firmly connected thereto. This solid connection is in practice regularly Soldering or welding realized.
  • the measuring tip is placed on it so that the measuring conductors contact the printed conductors of the printed circuit board at defined locations.
  • measuring tips are configured with regard to the number and arrangement of the measuring conductors and their electrical connection with the connecting contacts to a specific measuring project.
  • measuring tips for different measuring projects can differ, in particular with regard to the number of measuring conductors, the distance of the measuring conductors from one another (the so-called "pitch") and the connection of the individual measuring conductors to either the signal-carrying connection contact or the ground potential-having connection contact coplanar measuring conductors, in which the outer measuring conductors are connected via the electrically conductive main body to the ground potential terminal and the middle measuring conductor to the signal - carrying terminal contact.
  • This design of a measuring tip is also referred to as "GSG", where "G” for "ground” and “S” stands for "signal”.
  • GSG for probe tips with two contact fingers, both possible configurations are common, i.e., "GS" and "SG”.
  • the present invention seeks to reduce the costs associated with the use of generic measuring tips.
  • a generic measuring tip comprises (at least) one main body, at least two measuring conductors connected to the main body and at least two connecting conductors, wherein a first connecting conductor is electrically conductively connected to a first of the measuring conductors and a second connecting conductor to a second of the measuring conductors.
  • a generic measuring tip is further developed in that the measuring conductors are fastened to a support element and the support element is removably fastened to the basic body by means of releasable fastening means.
  • the base body can be used with the connection contacts for the construction of different, adapted to different measurement purposes measuring tips.
  • an exchange of the body with the terminal contacts is not required, just because the measuring conductors are worn or damaged.
  • the fastening means do not have to attack the measuring conductors, which would be consuming (but basically possible) because of the regularly very delicate dimensions of the measuring conductors.
  • this can simplify the manufacture of the measuring tip, since the exact positioning of the measuring conductors relative to one another, which is relevant to the function of the measuring tip, can advantageously be carried out in advance, ie before the measuring unit is mounted on the basic body.
  • a system according to the invention for forming a measuring tip according to the invention which is changeable, inter alia, with respect to the measuring conductor configuration, accordingly comprises a plurality of measuring units each comprising the measuring conductors and the supporting element, all measuring units being fastenable to the (one) main body of the measuring tip by means of the fastening means.
  • the measuring units may differ in the number and / or arrangement of the ladder. But these can also be the same and then serve only the purpose of an exchange due to wear or damage.
  • connection conductors are preferably designed in the form of a coaxial conductor with (at least) one inner conductor and (at least) an outer conductor surrounding the inner conductor and electrically insulated from it by (at least) one dielectric.
  • a coaxial conductor is advantageously suitable for transmitting high-frequency signals, even in high frequency ranges. This applies in particular if, as is preferably provided, the inner conductor serves as a signal conductor and the outer conductor has ground potential.
  • the coaxial conductor of the measuring tip (in one end portion) is formed as a coaxial connector, which allows a simple and fast connection of the measuring tip with a measuring device, in particular with the interposition of a equipped with a mating connector coaxial cable or rigid coaxial.
  • the measuring conductors project beyond the support element and preferably also the base body and form contact points for contacting measuring points of an electronic component to be tested at their tips projecting freely into the space.
  • the measuring conductors which are preferably formed of an electrically conductive material, in particular metal (s), can be deflected elastically upon contact with the measuring points of the component to be tested, which can ensure reliable contact.
  • the fastening means include (at least) a screw, as can be realized by screwing both an immovable and permanent mechanical connection (with a correspondingly good electrical contact) and a simple and quick replaceability.
  • a screw as can be realized by screwing both an immovable and permanent mechanical connection (with a correspondingly good electrical contact) and a simple and quick replaceability.
  • any other fastening means can be used, such as latching connections.
  • the measuring conductors are attached to a printed circuit board.
  • a printed circuit board i.e., printed circuit board traces.
  • a direct contact of the main body and / or the connection conductor with the measuring conductors can be avoided. This is particularly advantageous because it can be achieved in a simple manner a uniform connection interface even with different Meßleiterkonfigurationen.
  • the electrical connection between the measuring conductors and the connecting conductors in each connecting path may further be preferred for the electrical connection between the measuring conductors and the connecting conductors in each connecting path to comprise at least one contact spring clip, i. a spring-mounted contact element, which contacts a mating contact element with a conditional by a spring deflection contact pressure includes. This can avoid that possible positioning tolerances result as a result of the replaceable attachment of the measuring unit to the base body to poor transmission performance.
  • the contact spring tabs are assigned to the base body and / or the connecting conductors or solidified on this.
  • the mating contact elements of the measuring unit can be simple, in particular as sections of conductor tracks in the form of a Printed circuit board formed support member may be formed.
  • a further preferred embodiment of the measuring tip according to the invention can provide that the contact points, which are provided for contacting the main body and / or the coaxial conductor, are arranged on a first side of the support element and the measuring conductors on a second, preferably opposite side of the support element , It can thereby be achieved that the measuring conductors are arranged with their contact points as possible edge side of the body, whereby a comparatively large, limited by an unwanted contact of the body with the electronic component to be tested freedom of movement for the measuring tip can be realized.
  • FIG. 1 shows a measuring tip according to the invention in a first perspective view
  • FIG. 2 shows the measuring tip according to FIG. 1 in a second perspective illustration
  • FIG. 3 the measuring tip according to FIGS. 1 and 2 in a longitudinal section
  • FIGS. 1 to 3 shows a part of the measuring tip according to FIGS. 1 to 3 in an exploded view.
  • the measuring tip shown in the drawings comprises a main body 1. This may be formed, for example, brass. At a rear end, the main body 1 has three mounting openings 2, by means of which the measuring tip can be attached to a structure, not shown, for example, a robot arm. At a front end of the main body forms a recess 3, which is the Recording a measuring unit is used.
  • the measuring unit comprises a plurality of, in the present embodiment, three coplanar measuring conductors 4 made of metal, which are arranged at defined distances from one another and fixedly attached to a lower side of a printed circuit board 5.
  • the measuring conductors 4 are electrically isolated from each other. The attachment of the measuring conductor 4 is carried out by soldering.
  • About (not shown) conductor tracks of the circuit board 5, the three measuring conductors 4, each having a contact region 6 on the top of the circuit board 5 are electrically connected.
  • the circuit board 5 also forms in its support plate two passage openings 7, which serve to receive screws 8, via which the measuring unit is exchangeably attached to the main body 1 or can be. For this purpose, the screws 8 are screwed into corresponding threaded bores of the main body 1.
  • the main body 1 also has a receiving opening 9, which serves to receive a coaxial conductor.
  • the coaxial conductor comprises an inner conductor 10 and an outer conductor 1 1, which is arranged at a distance from the inner conductor 10.
  • a support 12 of electrically insulating material secures the relative position of inner conductor 10 and outer conductor 11.
  • air serves as a dielectric.
  • the coaxial conductor forms a (coaxial) connector. This serves to receive a coaxial mating connector, which may be arranged, for example, at one end of a coaxial cable (not shown), via which the measuring tip can be electrically connected to a measuring device, not shown.
  • the outer conductor 1 1 of the coaxial conductor is in direct contact with the base body 1, is thus electrically connected thereto.
  • the inner conductor 10, which extends through the stepped receiving opening to the recess 3, is in the portion in which it is no longer surrounded by the outer conductor 1 1, isolated from the base body 1 by means of air as a dielectric. In the region of the depression 3, the inner conductor 10 directly contacts the middle of the contact regions 6 of the printed circuit board 5.
  • the two outer contact regions 6, on the other hand, contact the main body 1 directly.
  • contact via contact spring tabs can also be provided. which are advantageously connected to the base body 1, make to ensure a secure contact even with tolerance-related positional deviations of circuit board 5 and body 1.
  • the contacting of the inner conductor 10 with the central contact region 6 can take place by means of one or more contact spring tabs, which are preferably fastened to the inner conductor 10.
  • the middle measuring conductor 4, the middle contact region 6, the connecting conductor of the printed circuit board 5 and the inner conductor 10 of the coaxial conductor are provided as part of a signal path during the use of the measuring tip during the testing of an electronic component.
  • the outer measuring conductors 4, the outer contact regions 6, the connecting tracks of the printed circuit board 5, the base body 1, and the outer conductor 1 1 of the coaxial conductor have ground potential.
  • the measuring tip shown in the drawings is thus designed in a so-called "GSG" configuration of its measuring conductors.
  • the measuring conductors 4 project beyond the printed circuit board 5 and thus also the main body 1 and thus protrude freely into the room. As a result, they can deflect individually elastically in their individual contact with defined measuring points of the component to be tested. As a result, secure contact of all measuring conductors 4 with the measuring points is achieved even with a slightly twisted position of the measuring tip to the electronic component.
  • the embodiment of the measuring tip according to the invention makes it possible to quickly and easily replace the measuring unit with an identical or different measuring unit. This can be useful, for example, if for a new measurement project another configuration of the measuring head. 4 is required or a measuring unit has to be replaced due to wear of the measuring head 4.
  • the main body 1 together with the coaxial conductor can continue to be used.
  • the interchangeability of the measuring unit is ensured by the fact that the printed circuit boards 5 of all provided measuring units identically arranged through holes 7 and 6 contact areas (where they are needed) to ensure the combination with the same unit of base 1 and coaxial.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Leads Or Probes (AREA)
  • Geometry (AREA)

Abstract

La présente invention concerne une pointe de sonde de mesure, comprenant un corps de base, au moins deux conducteurs de mesure reliés au corps de base et au moins deux conducteurs de raccordement, un premier conducteur de raccordement est électriquement connecté à un premier des conducteurs de mesure et un deuxième conducteur de raccordement est relié à un deuxième des conducteurs de mesure, les conducteurs de mesure étant fixés à un élément porteur et l'élément porteur étant fixé de manière interchangeable par des moyens de fixation libérables au corps de base.
EP13818659.8A 2012-12-28 2013-12-12 Pointe de sonde de mesure Withdrawn EP2939032A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012012412U DE202012012412U1 (de) 2012-12-28 2012-12-28 Messspitze
PCT/EP2013/003757 WO2014101984A1 (fr) 2012-12-28 2013-12-12 Pointe de sonde de mesure

Publications (1)

Publication Number Publication Date
EP2939032A1 true EP2939032A1 (fr) 2015-11-04

Family

ID=47991071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13818659.8A Withdrawn EP2939032A1 (fr) 2012-12-28 2013-12-12 Pointe de sonde de mesure

Country Status (10)

Country Link
US (1) US20150338441A1 (fr)
EP (1) EP2939032A1 (fr)
JP (1) JP6351618B2 (fr)
KR (1) KR102105927B1 (fr)
CN (1) CN104981702B (fr)
CA (1) CA2895223A1 (fr)
DE (1) DE202012012412U1 (fr)
HK (1) HK1214865A1 (fr)
TW (1) TWM483426U (fr)
WO (1) WO2014101984A1 (fr)

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KR880004322A (ko) * 1986-09-05 1988-06-03 로버트 에스. 헐스 집적회로 프로브시스템
US4849689A (en) * 1988-11-04 1989-07-18 Cascade Microtech, Inc. Microwave wafer probe having replaceable probe tip
JPH08236225A (ja) * 1994-10-28 1996-09-13 Whitaker Corp:The 電気コネクタ
JP3190874B2 (ja) * 1998-03-16 2001-07-23 日本電気株式会社 先端脱着式高周波プローブ
TW533309B (en) * 1999-06-22 2003-05-21 Nihon Micronics Kk Probe device
JP2001041975A (ja) * 1999-07-29 2001-02-16 Hioki Ee Corp コンタクトプローブ装置および回路基板検査装置
US7086898B2 (en) * 2004-03-25 2006-08-08 Adc Telecommunications, Inc. Coaxial cable Y-splitter assembly with an integral splitter body and method
DE202004019636U1 (de) * 2004-12-20 2005-03-03 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Meßspitze für HF-Messung
JP4737996B2 (ja) * 2005-01-14 2011-08-03 モレックス インコーポレイテド 高周波プローブ装置
US7372286B2 (en) 2006-01-03 2008-05-13 Chipmos Technologies (Bermuda) Ltd. Modular probe card
KR101003394B1 (ko) * 2008-12-11 2010-12-23 주식회사 크라또 슬라이딩 피씨비 방식의 프로브회로기판의 착탈부를 구비한프로브 유닛
DE202009003966U1 (de) 2009-03-20 2009-06-04 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Messspitzen
DE102010033991A1 (de) * 2010-03-11 2011-12-01 Rhode & Schwarz Gmbh & Co. Kg Messspitze mit integriertem Messwandler
JP2011196821A (ja) * 2010-03-19 2011-10-06 Advanced Systems Japan Inc 高周波プローブ
KR20110133279A (ko) * 2010-06-04 2011-12-12 티에스씨멤시스(주) 평판 표시 소자 검사 조립체
US20120031365A1 (en) * 2010-08-09 2012-02-09 Schweiger David J Intake manifold and seal
US20120252265A1 (en) 2011-03-31 2012-10-04 John Mezzalingua Associates, Inc. Connector assembly for corrugated coaxial cable
US9207259B2 (en) * 2011-06-10 2015-12-08 Taiwan Semiconductor Manufacturing Company, Ltd. Probe card for probing integrated circuits

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Title
See references of WO2014101984A1 *

Also Published As

Publication number Publication date
CN104981702B (zh) 2019-03-08
US20150338441A1 (en) 2015-11-26
CN104981702A (zh) 2015-10-14
DE202012012412U1 (de) 2013-02-19
TWM483426U (zh) 2014-08-01
JP2016508221A (ja) 2016-03-17
HK1214865A1 (zh) 2016-08-05
JP6351618B2 (ja) 2018-07-04
KR20150103019A (ko) 2015-09-09
KR102105927B1 (ko) 2020-05-04
CA2895223A1 (fr) 2014-07-03
WO2014101984A1 (fr) 2014-07-03

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