CN112003086A - High-speed signal transmission cable - Google Patents

High-speed signal transmission cable Download PDF

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Publication number
CN112003086A
CN112003086A CN202010850051.9A CN202010850051A CN112003086A CN 112003086 A CN112003086 A CN 112003086A CN 202010850051 A CN202010850051 A CN 202010850051A CN 112003086 A CN112003086 A CN 112003086A
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CN
China
Prior art keywords
holes
grounding
hole
signal transmission
cable
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
Application number
CN202010850051.9A
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Chinese (zh)
Inventor
张经祥
魏津
徐润生
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.)
Sundec Semiconductor Technology Shanghai Co Ltd
Original Assignee
Sundec Semiconductor Technology Shanghai Co Ltd
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 Sundec Semiconductor Technology Shanghai Co Ltd filed Critical Sundec Semiconductor Technology Shanghai Co Ltd
Priority to CN202010850051.9A priority Critical patent/CN112003086A/en
Publication of CN112003086A publication Critical patent/CN112003086A/en
Priority to TW110117290A priority patent/TWI759204B/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention relates to a high-speed signal transmission cable, and belongs to the technical field of chip testing devices. The method is characterized in that: including the cable is restrainted a bundle and at least one connector module, wherein the cable is restrainted a bundle and is become with the pipe box of package outside coaxial cable by the multiunit coaxial cable, the connector module includes the spring pin, the spring bushing, external member base and signal conversion piece, the external member base is central protruding and is equipped with the step-like component of the through-hole that the array was arranged at the bellying, the external member base bottom corresponds central protruding there is a sunkenly, set up the through-hole that corresponds with the through-hole position of external member base on the signal conversion piece, both correspond behind the sunken department of embedding external member base through-holes UNICOM each other, the spring bushing cover is outside the spring pin, the afterbody of spring pin passes behind the through-hole of external member base and signal conversion piece and. The invention solves the problems that the signal transmission cable is easy to interfere and the single end is uncontrollable under the high-frequency condition, and can obviously improve the signal transmission quality.

Description

High-speed signal transmission cable
Technical Field
The invention relates to a high-speed signal transmission cable, and belongs to the technical field of chip testing devices.
Background
Automatic Test Equipment (ATE) for chips is commonly used in the field of chip manufacturing to test the logic of the manufactured chips to ensure that the performance of the chips meets the design requirements. At present, high-speed cables consisting of a plurality of groups of coaxial cables and spring pin modules are generally used for transmitting signals in the equipment, two ends of the coaxial cables are stripped to separate signal wires and grounding wires which are respectively welded with the spring pin modules, and then epoxy resin glue is poured at the welding positions for protection and isolation, but the following defects exist in the method:
1. the welding of the cable and the pogo pin damages the impedance environment, is very easy to cause signal sudden change at the place, and is greatly influenced by the welding process and the worker level.
2. Because each pair of spring pins is welded with the same coaxial cable, high-speed signals transmitted by the cable cores are independent, and GND is not short-circuited to a plane at the front end of the spring pin module. The loop current of each path of signal can only return to the ATE along the ground probe matched with the loop current, the loop current is not an optimal ground loop, and no GND (ground potential) surrounding is arranged around the signal for shielding, so that the instability and attenuation of the signal are easily caused, and the signal cannot be transmitted within the range of +/-10% of a single end.
3. When the welding of the tail part of the array spring pin module and a cable is finished, because no additional auxiliary structure is arranged, the disconnection and the deformation are easily caused in the process of supporting only by the spring pin and the welding point of the coaxial line.
Disclosure of Invention
The invention provides a high-speed signal transmission cable which can effectively reduce attenuation and mutation in a high-frequency signal transmission process and reduce risks of disconnection and deformation.
The technical scheme is as follows:
a high speed signal transmission cable, characterized by: including the cable is restrainted a bundle and at least one connector module, wherein the cable is restrainted a bundle and is become with the pipe box of package outside coaxial cable by the multiunit coaxial cable, the connector module includes the spring pin, the spring bushing, external member base and signal conversion piece, the external member base is central protruding and is equipped with the step-like component of the through-hole that the array was arranged at the bellying, the external member base bottom corresponds central protruding there is a sunkenly, set up the through-hole that corresponds with the through-hole position of external member base on the signal conversion piece, both correspond behind the sunken department of embedding external member base through-holes UNICOM each other, the spring bushing cover is outside the spring pin, the afterbody of spring pin passes behind the through-hole of external member base and signal conversion piece and.
Furthermore, at least one bolt through hole is respectively arranged on two sides of the central bulge of the base of the sleeve piece and is fixedly connected with other equipment through bolts.
Furthermore, the internal resistance of the coaxial cable is 50-75 ohms, the sleeve is a soft rubber tube, and a plurality of cross-shaped plastic frameworks are arranged inside the sleeve and used for separating and protecting the coaxial cable.
Furthermore, both ends of the coaxial cable are connected with the connector module, epoxy resin glue is poured at the welding connection position of the tail part of the spring needle and the coaxial cable by using a mould, a solid protective layer is formed, and the impedance of welding points of the coaxial cables is unified.
Furthermore, one end of the coaxial cable is connected with the connector module, epoxy resin glue is poured at the welding connection position of the tail of the spring pin and the coaxial cable by using a mould, a solid protective layer is formed, the impedance of the welding point of each coaxial cable is unified, and the other end of the coaxial cable is directly connected with equipment or other interfaces according to the requirement.
Furthermore, the through holes in the signal conversion block are divided into insulation holes and grounding holes, the spring pins inserted into the grounding holes are grounding probes, the spring pins inserted into the insulation holes are signal probes, the insulation holes and the grounding holes are distributed at intervals, the grounding holes are formed around each insulation hole, 4 grounding probes which are grounded together are arranged around each signal probe, and signals are not easily interfered; the internal diameter in ground connection hole is unanimous with the external diameter of the afterbody of pogo pin, and each ground connection is UNICOM mutually between the hole, and the internal diameter in insulation hole slightly is greater than the external diameter of the afterbody of pogo pin, and it flows into wherein smoothly to glue when being convenient for the encapsulating.
Further, the signal conversion block is a multi-layer PCB board in which the ground holes are plated with copper and interconnected by one layer of PCB board.
Furthermore, the signal conversion block is made of a whole piece of conductive metal, the spring pins penetrating through the grounding holes are closely contacted with the grounding holes and are mutually connected through the conductive metal to form a grounding grid, the spring pins penetrating through the insulating holes are not contacted with the insulating holes, and gaps between the spring pins and the insulating holes are insulated through filled epoxy resin glue.
Has the advantages that:
1) the invention ensures that the grounds between the coaxial cables are mutually connected to form an optimal grounding loop by arranging the signal conversion block, solves the problems of easy interference and uncontrollable single end of a high-speed transmission cable under the condition of high frequency, and can obviously improve the signal transmission quality of a high-speed signal wire.
2) The arrangement of the grounding hole and the insulating hole of the signal conversion block ensures that four grounding probes are arranged around each signal-connecting probe to form shielding.
3) The signal conversion block enables the spring pin to be welded with the coaxial cable by adopting a machine, and reduces the requirement on the level of workers during manual welding.
4) The signal conversion block forms a supporting point, so that the mechanical strength is improved, the defect that the spring probe is easy to deform without support can be avoided, the firmness of a welding point of the spring probe and the coaxial cable can be ensured after epoxy resin is filled with glue, the spring probe is not easy to damage, and a uniform impedance environment is formed.
Drawings
FIG. 1 is a schematic structural diagram of a high-speed signal transmission cable according to the present invention;
FIG. 2 is a schematic view of a connector module;
FIG. 3 is a schematic view of the structure of the back of the base of the kit;
FIG. 4 is a schematic diagram of the signal conversion block embedded in the back of the base of the kit;
wherein: the connector module is 1, the kit base is 11, the spring sleeve is 111, the spring pin is 112, the bolt is 12, the signal conversion block is 13, the grounding hole is 131, the insulating hole is 132, the bolt through hole is 14, the cable cluster is 2, and the coaxial cable is 21.
Detailed Description
The invention is described in detail below with reference to the following figures and specific examples:
as shown in fig. 1 to 3, a high-speed signal transmission cable includes a cable bundle 2 and at least one connector module 1, the cable bundle 2 is composed of a plurality of groups of coaxial cables 21 and pipe sleeves wrapped outside the coaxial cables, the connector module 1 comprises spring pins 112, spring sleeves 111, an external member base 11 and a signal conversion block 13, the external member base 11 is a step-shaped member with a central bulge and through holes arranged in an array manner at the bulge, a depression is formed in the bottom of the external member base 11 corresponding to the central bulge, the signal conversion block 13 is provided with through holes corresponding to the through holes of the external member base 11, the through holes corresponding to the through holes are mutually communicated after being embedded into the depression of the external member base 11, the spring sleeves 111 are sleeved outside the spring pins 112, and the tail of the spring pins 112 is welded with a signal line or a grounding line at one end of the coaxial cables 21 after penetrating through the through holes of the external member base 11.
Two sides of the central bulge of the kit base 11 are respectively provided with at least one bolt through hole 14 which is fixedly connected with other equipment through bolts 12.
The internal resistance of the coaxial cable 21 is 50-75 ohms, the sleeve is a soft rubber tube, and a plurality of cross-shaped plastic frameworks are arranged inside the sleeve and used for separating and protecting the coaxial cable 21.
The two ends of the coaxial cable 21 are both connected with the connector module 1, and epoxy resin glue is poured at the welding connection position of the tail part of the spring pin 112 and the coaxial cable 21 by using a mould to form a solid protection layer.
One end of the coaxial cable 21 is connected with the connector module 1, epoxy resin glue is poured at the welding connection position of the tail part of the spring pin 112 and the coaxial cable 21 by using a mould to form a solid protection layer, and the other end of the coaxial cable is directly connected with equipment or other interfaces according to the requirement.
As shown in fig. 4, the through hole of the signal conversion block 13 is divided into an insulation hole 132 and a ground hole 131, the insulation hole 132 and the ground hole 131 are distributed at intervals, the ground hole 131 is formed around each insulation hole 132, the inner diameter of the ground hole 131 is identical to the outer diameter of the tail of the pogo pin 112, the ground holes 131 are communicated with each other, and the inner diameter of the insulation hole 132 is slightly larger than the outer diameter of the tail of the pogo pin 112.
The signal conversion block 13 is a multi-layer PCB board in which a ground hole is plated with copper and is connected to each other through one layer of PCB board.
The signal conversion block 13 is a whole piece of conductive metal, the pogo pins 112 penetrating through the grounding holes 131 are in close contact with the grounding holes 131, and are connected with each other through the conductive metal to form a grounding grid, the pogo pins 112 penetrating through the insulating holes 132 are not in contact with the insulating holes 132, and gaps between the pogo pins 112 and the insulating holes 132 are insulated by filled epoxy resin glue.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.

Claims (8)

1. A high speed signal transmission cable, characterized by: the cable bundle comprises a cable bundle (2) and at least one connector module (1), wherein the cable bundle (2) consists of a plurality of groups of coaxial cables (21) and a pipe sleeve wrapped outside the coaxial cables, the connector module (1) comprises a spring pin (112), a spring sleeve (111), a sleeve base (11) and a signal conversion block (13), the sleeve base (11) is a step-shaped component with a central bulge and through holes arranged in an array manner at the bulge, a depression is arranged at the bottom of the sleeve base (11) corresponding to the central bulge, the signal conversion block (13) is provided with through holes corresponding to the through holes of the sleeve base (11), the through holes corresponding to the through holes of the sleeve base (11) are mutually communicated after being embedded into the depression of the sleeve base (11), and the spring sleeve (111) is sleeved outside the spring pin (112), the tail part of the spring pin (112) penetrates through the sleeve base (11) and the through hole of the signal conversion block (13) and then is welded with a signal wire or a grounding wire at one end of the coaxial cable (21).
2. A high-speed signal transmission cable according to claim 1, wherein: two sides of the central bulge of the kit base (11) are respectively provided with at least one bolt through hole (14) which is fixedly connected with other equipment through bolts (12).
3. A high-speed signal transmission cable according to claim 1, wherein: the internal resistance of the coaxial cable (21) is 50-75 ohms, the sleeve is a soft rubber tube, and a plurality of cross-shaped plastic frameworks are arranged inside the sleeve and used for separating and protecting the coaxial cable (21).
4. A high-speed signal transmission cable according to claim 1, wherein: the two ends of the coaxial cable (21) are connected with the connector module (1), and epoxy resin glue is poured at the welding connection position of the tail of the spring needle (112) and the coaxial cable (21) by using a mould to form a solid protective layer.
5. A high-speed signal transmission cable according to claim 1, wherein: one end of the coaxial cable (21) is connected with the connector module (1), epoxy resin glue is poured at the welding connection position of the tail part of the spring needle (112) and the coaxial cable (21) by using a mould to form a solid protection layer, and the other end of the coaxial cable is directly connected with equipment or other interfaces according to requirements.
6. A high-speed signal transmission cable according to claim 1, wherein: the through holes of the signal conversion blocks (13) are divided into insulation holes (132) and grounding holes (131), the insulation holes (132) and the grounding holes (131) are distributed at intervals, the grounding holes (131) are formed around each insulation hole (132), the inner diameter of each grounding hole (131) is consistent with the outer diameter of the tail of the corresponding spring pin (112), the grounding holes (131) are communicated with one another, and the inner diameter of each insulation hole (132) is slightly larger than the outer diameter of the tail of the corresponding spring pin (112).
7. A high speed signal transmission cable according to claim 6, wherein: the signal conversion block (13) is a multilayer PCB, wherein copper is plated in the grounding hole, and the grounding hole are connected with each other through one layer of PCB.
8. A high speed signal transmission cable according to claim 6, wherein: the signal conversion block (13) is a whole piece of conductive metal, the spring pins (112) penetrating through the grounding holes (131) are closely contacted with the grounding holes (131), and the signal conversion block and the grounding holes are connected with each other through the conductive metal to form a grounding network; the pogo pins (112) passing through the insulation holes (132) are not in contact with the insulation holes (132), and the gaps between the pogo pins and the insulation holes are insulated by poured epoxy resin glue.
CN202010850051.9A 2020-08-21 2020-08-21 High-speed signal transmission cable Pending CN112003086A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010850051.9A CN112003086A (en) 2020-08-21 2020-08-21 High-speed signal transmission cable
TW110117290A TWI759204B (en) 2020-08-21 2021-05-13 High speed signal transmission wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010850051.9A CN112003086A (en) 2020-08-21 2020-08-21 High-speed signal transmission cable

Publications (1)

Publication Number Publication Date
CN112003086A true CN112003086A (en) 2020-11-27

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ID=73473651

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010850051.9A Pending CN112003086A (en) 2020-08-21 2020-08-21 High-speed signal transmission cable

Country Status (2)

Country Link
CN (1) CN112003086A (en)
TW (1) TWI759204B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116879586A (en) * 2023-07-28 2023-10-13 上海捷策创电子科技有限公司 Coaxial high-speed interface device for semiconductor test

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7404718B2 (en) * 2003-11-05 2008-07-29 Tensolite Company High frequency connector assembly
WO2016072986A1 (en) * 2014-11-06 2016-05-12 Ardent Concepts, Inc. Controlled-impedance cable termination using compliant interconnect elements
DE102016205586A1 (en) * 2016-04-05 2017-10-05 Voith Patent Gmbh Data bus connector for high data rates
KR102665563B1 (en) * 2017-05-26 2024-05-17 스미스 인터커넥트 아메리카스, 인크. Impedance controlled test socket
WO2019021749A1 (en) * 2017-07-24 2019-01-31 株式会社ヨコオ Inspection jig
CN212908364U (en) * 2020-08-21 2021-04-06 胜达克半导体科技(上海)有限公司 High-speed signal transmission cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116879586A (en) * 2023-07-28 2023-10-13 上海捷策创电子科技有限公司 Coaxial high-speed interface device for semiconductor test

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Publication number Publication date
TW202209762A (en) 2022-03-01
TWI759204B (en) 2022-03-21

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Address after: 201799 1st floor, building 1, 1130 qinghewan Road, Qingpu District, Shanghai

Applicant after: Sundak Semiconductor Technology (Shanghai) Co.,Ltd.

Address before: 201799 1st floor, building 1, 1130 qinghewan Road, Qingpu District, Shanghai

Applicant before: Sundec semiconductor technology (Shanghai) Co.,Ltd.