US3883207A - Low insertion force connector for modular circuit packages - Google Patents

Low insertion force connector for modular circuit packages Download PDF

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Publication number
US3883207A
US3883207A US396822A US39682273A US3883207A US 3883207 A US3883207 A US 3883207A US 396822 A US396822 A US 396822A US 39682273 A US39682273 A US 39682273A US 3883207 A US3883207 A US 3883207A
Authority
US
United States
Prior art keywords
carriage
connector
cavity
base
leads
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 - Lifetime
Application number
US396822A
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English (en)
Inventor
Thaddeus K Tomkiewicz
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.)
Molex LLC
Original Assignee
Molex LLC
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 Molex LLC filed Critical Molex LLC
Priority to US396822A priority Critical patent/US3883207A/en
Priority to GB3281074A priority patent/GB1442933A/en
Priority to FR7429948A priority patent/FR2244329A1/fr
Priority to JP10143674A priority patent/JPS5337543B2/ja
Priority to DE19742443939 priority patent/DE2443939A1/de
Application granted granted Critical
Publication of US3883207A publication Critical patent/US3883207A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/10—Plug-in assemblages of components, e.g. IC sockets
    • H05K7/1007—Plug-in assemblages of components, e.g. IC sockets with means for increasing contact pressure at the end of engagement of coupling parts

Definitions

  • ABSTRACT Connector for modular circuit packages including several male leads, such as large scale integrated circuit packages.
  • the connector has a housing including a base with a carriage movable in a cavity in the base between outer and inner positions. The carriage is prevented from moving out of the cavity beyond its outer position so that the parts are maintained in assembled relation for convenient use.
  • the modular circuit package is placed on a support surface on the carriage, and its leads enter recesses in the housing with no insertion force.
  • a number of terminals are carried by the housing, and each includes a spring contact normally positioned to permit free entry of a lead into its recess.
  • the package and the carriage are pressed to move the carriage from the outer to the inner position and cam means on the carriage engage the terminals to force the spring contacts against the package leads within the lead receiving recesses.
  • Resilient tabs releasably latch the carriage in its inner position while permitting convenient release of the carriage for replacing the package.
  • the present invention relates to connectors for modular circuit packages, and more particularly to connectors of the type referred to as low or zero insertion force sockets.
  • modular circuit package as used herein is intended to encompass devices such as large scale integrated circuit packages (known as LSl's), dual-in-line packages and other packages or devices having plural male leads.
  • LSl's large scale integrated circuit packages
  • dual-in-line packages and other packages or devices having plural male leads.
  • LSIs not only include many leads, but also the leads are quite fragile and delicate.
  • the total force required is substantial when many leads are involved.
  • the leads may be unable to accommodate insertion forces without bending or otherwise becoming damaged.
  • a connector for a modular circuit package of the type including several male leads.
  • the connector includes a housing having two parts a base with a cavity defined therein, and a carriage mounted in the cavity for movement between outer and inner positions.
  • a retaining structure maintains the carriage and the base in assembled condition and prevents the carriage from moving out of the cavity beyond its outer position.
  • the carriage includes an externally facing support surface against which a modular circuit package is supported. Recesses are provided in the housing for receiving the leads of the package when the package is placed on the support surface.
  • terminals are mounted in the housing, and each includes a spring contact normally positioned adjacent the lead receiving recess so that an unobstructed path is provided for free entry of the leads.
  • cam surfaces on the carriage engage the terminals to force the spring contacts into firm engagement with the leads of the package.
  • Resilient latching tabs on the base engage the carriage in the inner position in order to hold the carriage in place and to permit convenient release and replacement of the package.
  • FIG. 1 is a sectional view of a connector constructed in accordance with the principles of the invention, taken along the line 1-1 of FIG. 3, and illustrating the connector mounted on a printed circuit board and during mounting of a modular circuit package;
  • FIG. 2 is a view similar to FIG. I illustrating the connector after mounting of the modular circuit package
  • FIG. 3 is a sectional view of the connector of FIG. 1 taken along the line 3-3 of FIG. I, with certain structure omitted for clarity;
  • FIG. 4 is a fragmentary view similar to part of FIG. 3 illustrating the connector after mounting of the modular circuit package
  • FIG. 5 is a fragmentary top view of the connector of FIG. 1;
  • FIG. 6 is a fragmentary bottom view of the connector of FIG. 1;
  • FIG. 7 is an enlarged elevational side view of a terminal of the connector of FIG. I.
  • FIG. 8 is another side view of the terminal of FIG. 7.
  • the connector 10 serves to establish releasable electrical connections with and to support a modular circuit package 12 and to electrically interconnect the package 12 with conductive regions 14 of a printed circuit board 16.
  • the package 12 in the illustrated arrangement comprises a large scale integrated circuit package, or LSI, having an array of forty male leads 18 in a standard double row configuration.
  • the principles of the invention may be applied to connectors for many types of modular circuit packages including dual-in-line packages, semiconductor components, and others.
  • the connector 10 of the present invention is designed for mounting upon and connection to conductive areas 14 of the printed circuit board 16, connectors of the present invention may be adapted for interconnection with external circuitry of many types.
  • the connector l includes a housing generally designated as 20 comprised of a base member 22 having a cavity 24 therein and a carriage 26 supported for movement in the cavity 24.
  • the carriage 26 is illustrated in an outer position relative to the base member, and a retaining structure gen erally designated as 28 (FIGS. 3 and 4) is provided to prevent withdrawal of the carriage 26 from the cavity 24 beyond the outer position.
  • the car riage is illustrated in an inner position, and a latching structure generally designated as 30 (FIGS. 3 and 4) is provided to hold the carriage 26 in place with respect to the base 22 when it is pushed to its inner position.
  • the carriage 26 In order to support the modular circuit package 12 in position on the connector 10, the carriage 26 is provided with a support surface 32 facing outwardly of the connector and against which the base of the package 12 may be placed.
  • Base 22 is provided with a number of lead receiving recesses 34 flanking the mouth of cavity 24 and corresponding to the array of leads 14 of the modular circuit package 12. When the package 12 is placed upon the support surface 32 as illustrated in FIG. I, the leads 14 enter the recesses 34.
  • Each terminal 36 includes a spring contact portion 38 which, in the normal or relaxed condition of the terminal 36, is dis-- posed for free and unobstructed entry of the corresponding lead 18 into the corresponding recess 34.
  • the base 22 is generally rectangular or box'like in shape, and has a configuration complementary to that of the modular circuit package 12.
  • the base 22 includes a peripheral generally continuous outer wall made up of opposed side walls 42 and opposed end walls 44.
  • the cavity 24 for receiving the carriage 26 is defined centrally of the walls 42 and 44.
  • Side walls 42 are spanned at spaced locations by a series of struts or ribs 46, and the uppermost edges of the struts 46 define the innermost extent of cavity 24.
  • the bottom of the base 22 is spaced slightly from the printed circuit board 16 by means of a number of protrusions 48 in order to permit the flow of heat and/or gasses which may occur during mounting of the base 22 to the board 16 by sol dering of terminals 36, and also to provide for ventilation of the modular circuit package 12.
  • Carriage 26 is complementary in shape to and somewhat smaller than base 22, and fits snugly into cavity 24.
  • the carriage 26 includes spaced end walls 50 and side walls 52.
  • the side walls 52 are interconnected at spaced points by a series of struts or ribs 54.
  • the outermost portions of the side walls 52 form the support surface 32 for the modular circuit package 12, and the end walls 50 are extended outwardly to provide protective walls or guards 56 flanking the ends of the package 12.
  • Cam surfaces are formed on the sides of walls 52.
  • the carriage 26 may be moved inwardly and outwardly of the base 22 between the outer position illustrated in FIGS. 1, 3, 5 and 6 and the inner position illustrated in FIGS. 2 and 4.
  • the base 22 and carriage 26 are fabricated as separate parts and thus are not integrally joined with one another.
  • the carriage 26 is aligned over cavity 24 of base 22 and pushed inwardly.
  • the carriage is guided to the proper position and is thereafter guided in movement between the inner and outer positions by means of a pair of guide projections 58 associated with the end walls of the carriage 26 movable in guide slots 60 formed in the end walls 44 of the base 22.
  • the retaining structure 28 When the carriage 26 is initially assembled with the base 22, the retaining structure 28 permits assembly of the parts and thereafter maintains the parts in assembled arrangement for convenience in use of the connector 10.
  • the retaining structure 28 includes a pair of generally hook-shaped fingers 62 formed as resilient integral extensions of a pair of the struts 46 of base 22. Fingers 62 are engageable with shoulders 64 formed on a pair of struts 54 of the carriage 26.
  • cam surfaces 66 on the fingers 62 cause the lingers to be deflected around the corresponding struts 54, and as the carriage 26 reaches the outer posi tion, the fingers resiliently snap inwardly to overlie the shoulders 64 and prevent subsequent movement of the carriage 26 from the cavity 24.
  • Latching structure 30 comprises a pair of resilient latching tabs 68 formed integrally with the end walls 44 of the base 22.
  • Each tab 68 is somewhat hook shaped in configuration and includes an end or nose surface 70 which rides over the outer surface of the end wall 50 of the carriage 26.
  • the tabs 68 are bent resiliently outwardly by contact of the end surfaces 70 with the walls 50 and this results in a frictional detaining force being applied to the carriage 26 so that it is frictionally detained in its outer position pending use.
  • Each terminal 36 of the connector 10 is illustrated in detail in FIGS. 7 and 8.
  • Each terminal includes a getterally straight shank portion 74 terminating in a pin contact portion 76 extending from base 22 of connector I0.
  • Pin contact 76 can be connected to external circuitry such as conductive areas 14 of the printed circuit board 16 by any conventional soldering process.
  • the terminal 36 is provided with a widened region 78 from the central area of which there is outwardly struck a resilient locking tang 80.
  • Spring contact portion 38 of the terminal 36 is formed by a generally U-shaped segment of the terminal.
  • the spring contact 38 is displaced to the side of the plane of the shank portion 74 by means of a transversely extending segment 82.
  • the extremity of spring contact 38 is provided with an enlarged or widened head portion 84.
  • each lead receiving recess 34 is generally square in cross section and extends from the top wall of the base 22.
  • the recesses 34 correspond in number and position to the leads 18 of the modular circuit package 12, and are of ample size to permit free and unobstructed entry of the leads into recesses.
  • Each recess 34 communicates with the cavity 24 by means of a slot or channel 86 of narrower width than the recess 34.
  • the pin contact portion 76 is directed downwardly into the lead receiving recess 34.
  • the widened area 78 maintains the terminal in the desired position within recess 34 as downward movement of the terminal continues.
  • the leading end or pin contact portion 76 enters a channel 88 extending downwardly from the recess 34 and strikes a sloped guiding surface 90 to guide the pin contact 76 downwardly out of the base 22.
  • the locking tang 80 reaches the bottom of the lead receiving recess 34, it is resiliently compressed inwardly toward the shank portion 74, and when the terminal 36 is fully inserted, the tang 80 snaps outwardly to engage a shoulder 92 and prevent inadvertent withdrawal of the terminal from the base 22.
  • Access openings 94 are provided so that the tangs 80 may be depressed for withdrawal of terminals 36 if desired. Upon full insertion of each terminal 36, the transverse segment 82 abuts against the bottom of the corresponding slot 86 in order to prevent overinsertion of the terminal.
  • the terminals 36 are arranged so that movement of the leads 18 into the recesses 34 is completely unobstructed.
  • the spring contacts 38 lie for the most part in the slots 86 and in the cavity 24. Only the widened head portion 84 of the spring contacts 38 are retained within the recesses 34 so that the leads 18 are easily inserted between the spring contacts 38 and walls 96 of the recesses 34 opposite the contacts 38.
  • the side walls 52 of the carriage 26 are provided with the cam surfaces 40 of sufficient extent to overlie all of the terminals 36.
  • the cam surfaces 40 engage the portions of the spring contacts 38 lying within the cavity 24 and force the spring contacts 38 into the recesses 34. Consequently, as best seen in FIG. 2, the spring contacts 38 are pushed transversely against the leads I8 and firmly and resiliently capture the leads 18 between the spring contacts 38 and walls 96. Excessive force is not required due to the mechanical advantage afforded by the cam surfaces 40 acting against spring contacts 38.
  • a reliable electrical connection is made to each lead [8 by its corresponding terminal 36 and by firm engagement of the leads [8 the modular circuit package [2 is held in position supported against the support surface 32 of the carriage 26.
  • a housing including a base and having base wall means defining a cavity therein and a carriage mounted in said cavity for movement between outer and inner positions;
  • recess means in said base wall means housing defining a plurality of lead receiving paths for receiving the leads of a circuit package disposed on said support surface;
  • said base wall means including opposed side walls and opposed end walls surrounding said cavity, said recess mcans comprising two rows of recesses, one row in each of said side walls flanking said cavity.
  • each spring contact being disposed partly in said cavity and partly in said slot in the outer position of said carriage, and said camming means including cam surfaces on the carriage engaging each said spring contact in said cavity to move said contacts through said slots toward said recesses upon movement of said carriage to its inner position.
  • each said spring contact including an enlarged portion received in said recess for retaining said enlarged portion outside of said slot.
  • a connector for a modular circuit package including plural male leads. said connector comprising;
  • a housing including a base having a cavity defined in part between a pair of opposed side walls;
  • recess means in said housing defining a plurality of lead receiving paths for receiving the leads of a circuit package disposed on said support surface said recess means comprising two rows of recesses, one row in each of said opposed side walls flanking said cavity. each recess including a portion open to said cavity;
  • each terminal mounted in said housing adjacent each recess, each including a first terminal portion held by said housing and an otherwise unsupported spring contact extending from said first portion and normally positioned adjacent one said lead receiving path and permitting unobstructed entry of a lead into said path, each spring contact in its normal position including a first segment disposed in said recess and a second segment extending into said cavity from the corresponding one of said side wall;
  • each said portions of said recesses open to said cavity comprising a slot of reduced width, said first segment of said spring contact of each terminal including a head portion wider than said slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connecting Device With Holders (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US396822A 1973-09-13 1973-09-13 Low insertion force connector for modular circuit packages Expired - Lifetime US3883207A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US396822A US3883207A (en) 1973-09-13 1973-09-13 Low insertion force connector for modular circuit packages
GB3281074A GB1442933A (en) 1973-09-13 1974-07-25 Low insertion force connector for modular circuit packages
FR7429948A FR2244329A1 (enrdf_load_stackoverflow) 1973-09-13 1974-09-03
JP10143674A JPS5337543B2 (enrdf_load_stackoverflow) 1973-09-13 1974-09-05
DE19742443939 DE2443939A1 (de) 1973-09-13 1974-09-13 Mehrfachverbinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US396822A US3883207A (en) 1973-09-13 1973-09-13 Low insertion force connector for modular circuit packages

Publications (1)

Publication Number Publication Date
US3883207A true US3883207A (en) 1975-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
US396822A Expired - Lifetime US3883207A (en) 1973-09-13 1973-09-13 Low insertion force connector for modular circuit packages

Country Status (5)

Country Link
US (1) US3883207A (enrdf_load_stackoverflow)
JP (1) JPS5337543B2 (enrdf_load_stackoverflow)
DE (1) DE2443939A1 (enrdf_load_stackoverflow)
FR (1) FR2244329A1 (enrdf_load_stackoverflow)
GB (1) GB1442933A (enrdf_load_stackoverflow)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993384A (en) * 1975-05-12 1976-11-23 E. I. Du Pont De Nemours And Company Connector block
US4077689A (en) * 1977-04-25 1978-03-07 Burndy Corporation Circuit package receptacle with integral separation means
DE2733934A1 (de) * 1976-12-30 1978-07-06 Burndy Corp Schaltungsbauelementen-steckvorrichtung mit bewegbarer traegerteiltrennvorrichtung
US4189199A (en) * 1978-08-16 1980-02-19 Bell Telephone Laboratories, Incorporated Electrical socket connector construction
US4232923A (en) * 1976-10-22 1980-11-11 Bunker Ramo Corporation Electrical connector
DE2953052A1 (de) * 1978-08-16 1980-12-11 Western Electric Co Electrical socket connector construction
US4252393A (en) * 1979-08-06 1981-02-24 Teledyne Industries, Inc. Electrical connector for strip conductors
US4266840A (en) * 1979-10-29 1981-05-12 Jack Seidler Circuit holder
US4286837A (en) * 1978-12-25 1981-09-01 K.K. Elco International Electrical connector, an insulator therefor and a fitting jig for an assembly of these
US4349238A (en) * 1980-11-05 1982-09-14 Amp Incorporated Integrated circuit package connector
US4377319A (en) * 1981-01-28 1983-03-22 Amp Incorporated Low insertion force dip connector
US4381130A (en) * 1980-09-29 1983-04-26 Burroughs Corporation Zero insertion force connector for integrated circuit packages
US4390220A (en) * 1981-04-02 1983-06-28 Burroughs Corporation Electrical connector assembly for an integrated circuit package
US4407555A (en) * 1981-03-19 1983-10-04 Amp Incorporated Cam actuated DIP test socket
DE3214841A1 (de) * 1982-04-21 1984-02-16 Karl 8959 Buching Lotter I.c.-fassung fuer halbleiter
US4433886A (en) 1981-12-17 1984-02-28 Elco Corporation Connector mounting for integrated circuit chip packages
US4460237A (en) * 1981-12-30 1984-07-17 Methode Electronics, Inc. Contacts for chip carrier socket
US4470650A (en) * 1982-12-13 1984-09-11 Amp Incorporated Dual-in-line plug and socket assemblies
US4475782A (en) * 1982-01-07 1984-10-09 Buck Engineering Co., Inc. Electrical connector apparatus
US4480886A (en) * 1982-03-02 1984-11-06 Zetronic S.P.A. Quick connector for a multi-conductor circuit
US4491378A (en) * 1983-02-28 1985-01-01 Amp Incorporated Zero insertion force electrical connector
US4509812A (en) * 1982-04-21 1985-04-09 Karl Lotter Plug connector for dil components
US4527850A (en) * 1983-11-29 1985-07-09 Sealectro Corp. Zero insertion force socket
US4530553A (en) * 1984-03-15 1985-07-23 Northern Telecom Limited Minimum insertion force connector
US4540229A (en) * 1982-04-12 1985-09-10 At&T Bell Laboratories Electrical interconnection apparatus
US4637670A (en) * 1984-04-23 1987-01-20 Amp Incorporated Dual in-line package carrier assembly
US4688875A (en) * 1986-09-15 1987-08-25 American Telephone And Telegraph Company Spring contact structure
US4710134A (en) * 1986-09-29 1987-12-01 Amp Incorporated Low insertion force chip carrier connector with movable housing
US4801273A (en) * 1986-09-02 1989-01-31 Texas Instruments Incorporated Socket
US4824392A (en) * 1987-11-10 1989-04-25 Amp Incorporated Burn-in socket for gull wing integrated circuit package
US4824389A (en) * 1988-04-26 1989-04-25 Precision Connector Designs, Inc. Socket for electronic component
US4919623A (en) * 1989-02-13 1990-04-24 Amp Incorporated Burn-in socket for integrated circuit device
US5158468A (en) * 1991-12-06 1992-10-27 Motorola, Inc. Self-retaining contact assembly
US5470795A (en) * 1994-02-25 1995-11-28 Shushurin; Vladimir V. Method of connecting terminals of a plastic-encapsulated power transistor to a printed-circuit board
US5692920A (en) * 1995-12-14 1997-12-02 Molex Incorporated Zero insertion force electrical connector and terminal
US6478597B1 (en) * 2001-08-16 2002-11-12 Miraco, Inc. Zero insertion force connector for flat flexible cable

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5496882U (enrdf_load_stackoverflow) * 1977-12-20 1979-07-09
US4418974A (en) * 1981-01-28 1983-12-06 Amp Incorporated Low insertion force socket assembly
FR2507831A1 (fr) * 1981-06-11 1982-12-17 Alliance Tech Ind Dispositif de connexion pour circuits integres
US4491377A (en) * 1982-04-19 1985-01-01 Pfaff Wayne Mounting housing for leadless chip carrier
GB2137825B (en) * 1983-04-07 1986-09-24 Int Computers Ltd Improvements in or relating to electrical connectors

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857577A (en) * 1955-11-01 1958-10-21 Hughes Aircraft Co Electrical connector
US3474387A (en) * 1967-04-13 1969-10-21 Elco Corp Zero insertion force connector and contact therefor
US3648221A (en) * 1969-08-07 1972-03-07 Burndy Corp Multilayer programmable wiring board
US3673545A (en) * 1969-11-10 1972-06-27 Bunker Ramo Miniature connector construction{13 adjustable or floating
US3683317A (en) * 1970-07-20 1972-08-08 Cambridge Thermionic Corp Minimal insertion force connector
US3693131A (en) * 1971-11-01 1972-09-19 Burroughs Corp Programmable dual-in-line pin connector for integrated circuit units
US3750085A (en) * 1970-08-18 1973-07-31 S D C Prod Elec Ltd Plug and socket connectors and sockets therefor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857577A (en) * 1955-11-01 1958-10-21 Hughes Aircraft Co Electrical connector
US3474387A (en) * 1967-04-13 1969-10-21 Elco Corp Zero insertion force connector and contact therefor
US3648221A (en) * 1969-08-07 1972-03-07 Burndy Corp Multilayer programmable wiring board
US3673545A (en) * 1969-11-10 1972-06-27 Bunker Ramo Miniature connector construction{13 adjustable or floating
US3683317A (en) * 1970-07-20 1972-08-08 Cambridge Thermionic Corp Minimal insertion force connector
US3750085A (en) * 1970-08-18 1973-07-31 S D C Prod Elec Ltd Plug and socket connectors and sockets therefor
US3693131A (en) * 1971-11-01 1972-09-19 Burroughs Corp Programmable dual-in-line pin connector for integrated circuit units

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993384A (en) * 1975-05-12 1976-11-23 E. I. Du Pont De Nemours And Company Connector block
US4232923A (en) * 1976-10-22 1980-11-11 Bunker Ramo Corporation Electrical connector
DE2759938A1 (enrdf_load_stackoverflow) * 1976-12-30 1982-09-23
DE2733934A1 (de) * 1976-12-30 1978-07-06 Burndy Corp Schaltungsbauelementen-steckvorrichtung mit bewegbarer traegerteiltrennvorrichtung
US4077689A (en) * 1977-04-25 1978-03-07 Burndy Corporation Circuit package receptacle with integral separation means
DE2953052A1 (de) * 1978-08-16 1980-12-11 Western Electric Co Electrical socket connector construction
US4189199A (en) * 1978-08-16 1980-02-19 Bell Telephone Laboratories, Incorporated Electrical socket connector construction
US4286837A (en) * 1978-12-25 1981-09-01 K.K. Elco International Electrical connector, an insulator therefor and a fitting jig for an assembly of these
US4252393A (en) * 1979-08-06 1981-02-24 Teledyne Industries, Inc. Electrical connector for strip conductors
US4266840A (en) * 1979-10-29 1981-05-12 Jack Seidler Circuit holder
US4381130A (en) * 1980-09-29 1983-04-26 Burroughs Corporation Zero insertion force connector for integrated circuit packages
US4349238A (en) * 1980-11-05 1982-09-14 Amp Incorporated Integrated circuit package connector
US4377319A (en) * 1981-01-28 1983-03-22 Amp Incorporated Low insertion force dip connector
US4407555A (en) * 1981-03-19 1983-10-04 Amp Incorporated Cam actuated DIP test socket
US4390220A (en) * 1981-04-02 1983-06-28 Burroughs Corporation Electrical connector assembly for an integrated circuit package
US4433886A (en) 1981-12-17 1984-02-28 Elco Corporation Connector mounting for integrated circuit chip packages
US4460237A (en) * 1981-12-30 1984-07-17 Methode Electronics, Inc. Contacts for chip carrier socket
US4475782A (en) * 1982-01-07 1984-10-09 Buck Engineering Co., Inc. Electrical connector apparatus
US4480886A (en) * 1982-03-02 1984-11-06 Zetronic S.P.A. Quick connector for a multi-conductor circuit
US4540229A (en) * 1982-04-12 1985-09-10 At&T Bell Laboratories Electrical interconnection apparatus
DE3214841A1 (de) * 1982-04-21 1984-02-16 Karl 8959 Buching Lotter I.c.-fassung fuer halbleiter
US4509812A (en) * 1982-04-21 1985-04-09 Karl Lotter Plug connector for dil components
US4470650A (en) * 1982-12-13 1984-09-11 Amp Incorporated Dual-in-line plug and socket assemblies
US4491378A (en) * 1983-02-28 1985-01-01 Amp Incorporated Zero insertion force electrical connector
US4527850A (en) * 1983-11-29 1985-07-09 Sealectro Corp. Zero insertion force socket
US4530553A (en) * 1984-03-15 1985-07-23 Northern Telecom Limited Minimum insertion force connector
US4637670A (en) * 1984-04-23 1987-01-20 Amp Incorporated Dual in-line package carrier assembly
US4801273A (en) * 1986-09-02 1989-01-31 Texas Instruments Incorporated Socket
US4688875A (en) * 1986-09-15 1987-08-25 American Telephone And Telegraph Company Spring contact structure
US4710134A (en) * 1986-09-29 1987-12-01 Amp Incorporated Low insertion force chip carrier connector with movable housing
US4824392A (en) * 1987-11-10 1989-04-25 Amp Incorporated Burn-in socket for gull wing integrated circuit package
US4824389A (en) * 1988-04-26 1989-04-25 Precision Connector Designs, Inc. Socket for electronic component
US4919623A (en) * 1989-02-13 1990-04-24 Amp Incorporated Burn-in socket for integrated circuit device
US5158468A (en) * 1991-12-06 1992-10-27 Motorola, Inc. Self-retaining contact assembly
US5470795A (en) * 1994-02-25 1995-11-28 Shushurin; Vladimir V. Method of connecting terminals of a plastic-encapsulated power transistor to a printed-circuit board
US5692920A (en) * 1995-12-14 1997-12-02 Molex Incorporated Zero insertion force electrical connector and terminal
US6478597B1 (en) * 2001-08-16 2002-11-12 Miraco, Inc. Zero insertion force connector for flat flexible cable
WO2003017428A3 (en) * 2001-08-16 2003-04-03 Miraco Inc A zero insertion force connector

Also Published As

Publication number Publication date
JPS5337543B2 (enrdf_load_stackoverflow) 1978-10-09
GB1442933A (en) 1976-07-14
JPS5055893A (enrdf_load_stackoverflow) 1975-05-16
FR2244329A1 (enrdf_load_stackoverflow) 1975-04-11
DE2443939A1 (de) 1975-03-20

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