CN212569053U

CN212569053U - Signal switching transmission structure and test equipment

Info

Publication number: CN212569053U
Application number: CN202120097606.7U
Authority: CN
Inventors: 陈前祎
Original assignee: Wuhan Jingce Electronic Group Co Ltd; Wuhan Jingyitong Electronic Technology Co Ltd
Current assignee: Wuhan Jingce Electronic Group Co Ltd; Wuhan Jingyitong Electronic Technology Co Ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-02-19
Anticipated expiration: 2031-01-14

Abstract

The utility model relates to a signal switching transmission structure and test equipment, it includes: a first board card; the second board card is used for mounting a product to be tested and arranged on one side of the first board card; the switching module is located between the first board card and the second board card and provided with a probe, one end of the probe is electrically connected with the first board card, and the other end of the probe is electrically contacted with the second board card. The utility model relates to a signal switching transmission structure and test equipment adopts the probe to carry out the electricity between first integrated circuit board and the second integrated circuit board and is connected, and the less probe of a plurality of volumes just can realize transmitting the signal of more way number, need not adopt the great wire rod of interval to carry out the transmission of signal, makes the interval between first integrated circuit board and the second integrated circuit board less to realize the miniaturization of whole test equipment volume, reduce test equipment cost.

Description

Signal switching transmission structure and test equipment

Technical Field

The utility model relates to a semiconductor field, in particular to signal switching transmission structure and test equipment.

Background

At present, in a chip testing device, because compatibility of a product during testing is considered, the device usually has several to tens of or hundreds of PCB (printed Circuit board) boards therein, signals on the boards need to be transferred and transmitted to other PCB boards, the number of signal paths usually has several hundreds to tens of thousands, and the transmission of the signals is transferred in a wire connection manner.

In the related art, referring to fig. 1 and 2, when two PCB boards are connected by wires, there are two general connection methods: firstly, connectors are respectively installed on two PCB boards, a first switching module and a second switching module are arranged between the two PCB boards, the first switching module is connected with the second switching module through wires, switching terminal boxes are respectively arranged on the first switching module and the second switching module, and the switching terminal boxes are in butt joint with the connectors on the PCB boards, so that the transmission of signals between the two PCB boards is realized; secondly, the wire is firstly pressed into the transition terminal and then assembled on the switching terminal box.

However, no matter which mode the wire rod is connected with the switching terminal box through, adopt the mode that the wire rod is connected between two PCB integrated circuit boards, all can lead to the interval between two PCB integrated circuit boards great, and then lead to that equipment overall structure needs to be done very big, make the cost of equipment remain high.

Therefore, a new signal transfer transmission structure is needed to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a signal switching transmission structure and test equipment to adopt the wire rod to connect the transmission that carries out the signal between two PCB integrated circuit boards in solving the correlation technique, lead to the interval between two PCB integrated circuit boards great, equipment overall structure is very big, makes the cost of equipment problem about the height.

In a first aspect, a signal transfer transmission structure is provided, which includes: a first board card; the second board card is used for mounting a product to be tested and arranged on one side of the first board card; the switching module is located between the first board card and the second board card and provided with a probe, one end of the probe is electrically connected with the first board card, and the other end of the probe is electrically contacted with the second board card.

In some embodiments, the probe is movable in any direction relative to the first card.

In some embodiments, the signal transfer transmission structure further includes a fixing member disposed between the first board card and the second board card, and the transfer module is mounted on the fixing member through a set screw; and the switching module is provided with a mounting hole for the positioning screw to pass through, and a gap is formed between the mounting hole and the positioning screw.

In some embodiments, the fixing member has a receiving cavity for receiving the adaptor module, and a gap is formed between the receiving cavity and the adaptor module.

In some embodiments, the adapting module can move along the axis of the positioning screw, and an elastic member is disposed between the adapting module and the fixing member.

In some embodiments, the second card has a first conductive pad in contact with the probe, the first conductive pad having a diameter greater than a diameter of the probe tip.

In some embodiments, the first board card and the second board card are vertically disposed, and the first board card is provided with a first electrical connector, and the first board card is electrically connected to the probe through the first electrical connector.

In some embodiments, the adaptor module comprises: the adapter plate is electrically connected with the first board card; and the needle die assembly is positioned on one side of the adapter plate and comprises the probe, one end of the probe is in contact with the second board card, and the other end of the probe is in contact with the adapter plate.

In some embodiments, the adapter module further includes a second electrical connector located on the other side of the adapter plate, and the adapter plate is electrically connected to the first board card through the second electrical connector.

In a second aspect, a testing apparatus is provided, which is characterized in that it includes the signal transfer transmission structure.

The utility model provides a beneficial effect that technical scheme brought includes:

the embodiment of the utility model provides a signal switching transmission structure and test equipment, owing to set up the switching module between first integrated circuit board and second integrated circuit board, the switching module has the probe, the one end and the first integrated circuit board electricity of probe are connected, the other end and second integrated circuit board electric contact, adopt the probe to carry out the switching of signal between first integrated circuit board and the second integrated circuit board, because the probe interval can accomplish very little, signal transmission's density can be very high, the signal of the more way number of transmission just can be realized to the less probe of a plurality of volumes, need not adopt the great wire rod of interval to carry out the transmission of signal, it can design less to make the interval between first integrated circuit board and the second integrated circuit board, thereby realize the miniaturization of whole test equipment volume, reduce test equipment cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic front view of a signal transfer transmission structure in the related art;

fig. 2 is a left side view of a signal transfer transmission structure in the related art;

fig. 3 is a schematic front view of a signal transfer transmission structure according to an embodiment of the present invention;

fig. 4 is a schematic left-view diagram of a signal transfer transmission structure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a switching module of a signal switching transmission structure according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of a switching module of a signal switching transmission structure according to an embodiment of the present invention;

fig. 7 is a schematic structural view illustrating a first conductive sheet of a signal transmission structure contacting with a probe according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second board card of a signal transfer transmission structure according to an embodiment of the present invention.

In the figure:

1. a first board card;

2. a second board card; 21. a first conductive sheet;

3. a probe;

4. a fixing member; 41. an accommodating cavity;

5. a transfer module; 51. mounting holes; 52. a set screw; 521. a head portion; 522. a rod portion; 53. an elastic member; 54. an adapter plate; 541. a second conductive sheet; 55. a needle die assembly; 551. a body; 56. a second electrical connector; 57. mounting a plate;

6. a first electrical connector.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment of the utility model provides a signal switching transmission structure and test equipment, it can solve and adopt the wire rod to connect the transmission that carries out the signal between two PCB integrated circuit boards among the correlation technique, and the interval that leads to between two PCB integrated circuit boards is great, and equipment overall structure is very big, makes the cost of equipment problem high.

Referring to fig. 3 and fig. 4, for the embodiment of the present invention, a signal transferring and transmitting structure may include: the first board card 1, in this embodiment, the first board card 1 is a vertically placed PCB board; the second board card 2 may be disposed on one side of the first board card 1, wherein in this embodiment, the second board card 2 is a horizontally disposed product PCB board, that is, the second board card 2 is disposed perpendicular to the first board card 1, and the second board card 2 is used for mounting a product to be tested, in other embodiments, the second board card 2 may also be disposed parallel to the first board card 1; and the switching module 5, it can be located between first integrated circuit board 1 and the second integrated circuit board 2, and the switching module 5 has probe 3, first integrated circuit board 1 is connected to the one end electricity of probe 3, the other end can with 2 electrical contact of second integrated circuit board, wherein, probe 3 can directly contact with first integrated circuit board 1, carry out the transmission of signal, also can switch on with first integrated circuit board 1 indirectly, make first integrated circuit board 1 and second integrated circuit board 2 carry out the transmission of signal through probe 3, utilize the characteristic that probe 3 can accomplish high density and arrange, realize first integrated circuit board 1, second integrated circuit board 2, and the miniaturization of the whole volume of probe 3, and probe 3 directly contacts with second integrated circuit board 2, make do not have other switching parts between second integrated circuit board 2 and probe 3, the interval between second integrated circuit board 2 and the probe 3 can accomplish minimum.

As shown in fig. 6, further, the probe 3 can move in any direction relative to the first board card 1, specifically, in this embodiment, the front-back direction is taken as an X axis, the left-right direction is taken as a Y axis, and the vertical direction is taken as a Z axis, so as to establish a three-dimensional space coordinate system, where the X axis is perpendicular to the first board card 1, and the Z axis is perpendicular to the second board card 2, and the probe 3 can move in the directions of the X axis, the Y axis, and the Z axis relative to the first board card 1, and the probe 3 can also rotate relative to the first board card 1, so as to overcome errors in processing and assembling, and enable the second board card 2 and the first board card 1 to be electrically connected accurately.

Referring to fig. 5 and 6, in some embodiments, the signal relay transmission structure may further include: the fixing member 4 may be disposed between the first board card 1 and the second board card 2, in this embodiment, the fixing member 4 is plate-shaped and disposed parallel to the second board card 2; the adapting module 5 can be installed on the fixing member 4 through the positioning screws 52, and the adapting module 5 can have the installation holes 51 through which the positioning screws 52 pass, in this embodiment, four corners of each adapting module 5 are respectively provided with one installation hole 51, so that the adapting module 5 is stably installed on the fixing member 4 through the four positioning screws 52, and a gap H can be formed between the installation hole 51 and the positioning screws 52, wherein the gap H is a unilateral gap, and the value range of the unilateral gap can be varied according to the use condition by 0.05-1.0 mm, and the gap H is formed between the installation hole 51 and the positioning screws 52, so that the adapting module 5 can move in the X-axis and Y-axis directions relative to the first board card 1, and the adapting module 5 can rotate in the horizontal plane, thereby driving the probe 3 and the adapting module 5 to move together.

Referring to fig. 6, further, the fixing member 4 may have a receiving cavity 41 for receiving the adapter module 5, in this embodiment, the adapter module 5 is partially received in the receiving cavity 41, and a gap may be formed between the receiving cavity 41 and the adapter module 5, so that the adapter module 5 is prevented from being damaged due to the fact that the adapter module 5 is received in the receiving cavity 41, and the gap between the receiving cavity 41 and the adapter module 5 is prevented from being blocked by the fixing member 4 when the adapter module 5 moves.

Referring to fig. 6, further, the adapting module 5 can move along the axis of the set screw 52 to realize the movement of the probe 3 in the Z-axis direction, and an elastic member 53 can be disposed between the adapting module 5 and the fixing member 4; specifically, the set screw 52 may include a head 521, and a rod 522 connected to the head 521, the rod 522 being inserted into the mounting hole 51 of the adaptor module 5 from the lower direction of the adaptor module 5, and the end of the rod 522 enters the fixing member 4 and is locked with the fixing member 4, the distance between the head 521 and the fixing member 4 can be greater than the height of the mounting hole 51, so that the adapting module 5 can move along the axis of the rod 522 without being pressed by the head 521 of the positioning screw 52, under the elastic force of the elastic element 53, the adapting module 5 and the fixing element 4 can have a gap in the Z-axis direction, so that the adapting module 5 and the fixing element 4 are in a separated state, when the switching module 5 is pressed on the first board card 1, the elastic member 53 is compressed, so that one end of the probe 3 can be stably and electrically connected with the first board card 1, and the other end of the probe can also be stably and electrically connected with the second board card 2.

Referring to fig. 7 and 8, further, the second board 2 may be fixed to the fixing member 4 by a bolt, and the second board 2 may have a first conductive sheet 21 contacting with the probe 3, where the first conductive sheet 21 corresponds to the probe 3 one by one to realize signal transmission between the probe 3 and the second board 2, and a diameter of the first conductive sheet 21 may be larger than a diameter of an end of the probe 3, in this embodiment, a diameter of the first conductive sheet 21 is 0.1-2 mm larger than a diameter of an end of the probe 3, so that when the probe 3 moves in the X-axis and Y-axis directions, the first conductive sheet 21 can be kept contacting with the first conductive sheet 21.

Referring to fig. 3, in some embodiments, the first board card 1 may be provided with a first electrical connector 6, so that the first board card 1 may be electrically connected to the probes 3 through the first electrical connector 6, in this embodiment, the first electrical connector 6 is preferably a horizontal connector, which may be a male connector or a female connector, and the first electrical connector 6 may be fixed on the first board card 1 in a form of welding or a patch, and when the first board card 1 and the second board card 2 are vertically arranged, by providing the first electrical connector 6 on the first board card 1, an abutting surface of the first electrical connector 6 may be arranged to face the second board card 2, so as to be conveniently electrically connected to the second board card 2.

Referring to fig. 5 and 6, in some alternative embodiments, the adaptor module 5 may include: the adapter plate 54 is electrically connected to the first board 1, in this embodiment, the adapter plate 54 is also a PCB, the adapter plate 54 is parallel to the second board 2, and the adapter plate 54 is provided with a plurality of second conductive sheets 541; in this embodiment, the pin die assembly 55 is located on the upper side of the adapter plate 54, that is, on the side close to the second board card 2, the pin die assembly 55 may be fixed on the adapter plate 54 by bolts, and the pin die assembly 55 may include a body 551 and the probe 3 mounted on the body 551, and the upper end of the probe 3 contacts the second board card 2, and the lower end of the probe 3 contacts the second conductive sheet 541 on the upper side of the adapter plate 54 in a one-to-one correspondence and contacts the second conductive sheet 541, so as to realize the electrical connection between the second board card 2 and the adapter plate 54; meanwhile, as the needle module assembly 55 is in a module form, the structure of the switching module 5 is simple, and the maintenance is more convenient.

Referring to fig. 4 and 5, further, the adaptor module 5 may further include a second electrical connector 56 located on the other side of the adaptor plate 54, and the conductive traces on the adaptor plate 54 form a via with the second electrical connector 56, so that the adaptor plate 54 can be electrically connected to the first board 1 through the second electrical connector 56; in this embodiment, the second electrical connector 56 is located at the lower side of the interposer 54, and the second electrical connector 56 is preferably a vertical electrical connector, which may be a male connector or a female connector, and the second electrical connector 56 may be fixed on the interposer 54 in a form of welding or patch, so that the interposer 54, the pin mold assembly 55, and the second electrical connector 56 form a whole, and then the whole is mounted on the fixing member 4, and the second electrical connector 56 is butted with the first electrical connector 6 on the first board 1, so as to realize the electrical connection between the second electrical connector 56 and the first board 1, and the second electrical connector 56 and the first electrical connector 6 may be fixed to each other by buckling; by arranging the second electrical connector 56 on the adapter module 5, the butt-joint surface of the second electrical connector 56 can be arranged to be opposite to the first board card 1, or opposite to the first electrical connector 6 on the first board card 1, so that the electrical connection with the first board card 1 can be realized conveniently.

Referring to fig. 6, in the embodiment, a mounting plate 57 is further disposed between the second electrical connector 56 and the interposer 54, and the set screw 52 passes through the mounting plate 57 and the interposer 54 to integrally mount the adaptor module 5 on the fixing element 4, so as to prevent the head 521 of the set screw 52 from directly contacting the interposer 54 and damaging the interposer 54.

The embodiment of the utility model provides a still provides a test equipment, it can include foretell signal switching transmission structure, in this embodiment test equipment specifically is chip test equipment, when testing the chip, installs the chip to second integrated circuit board 2 on, second integrated circuit board 2 can realize carrying out signal transmission with first integrated circuit board 1 through switching module 5, in other embodiments, test equipment also can be other electronic test equipment, and test equipment is inside to have tens, hundreds of integrated circuit boards usually, adopts above-mentioned switching module 5 to carry out the switching of signal between the integrated circuit board of a plurality of differences, can improve signal transmission's density, makes whole volume of whole test equipment than adopting the wire rod to carry out signal transmission's small very much, and then has practiced thrift the material of making test equipment, realizes the reduction of cost.

The embodiment of the utility model provides a pair of signal switching transmission structure and test equipment's principle does:

because the switching module 5 is arranged between the first board card 1 and the second board card 2, the switching module 5 is provided with the probe 3, one end of the probe 3 is electrically connected with the first board card 1, the other end is electrically contacted with the second board card 2, the probe 3 is adopted to switch signals between the first board card 1 and the second board card 2, because the distance between the probes 3 can be very small, the signal transmission density can be very high, a plurality of probes 3 with small volume can realize the transmission of a plurality of paths of signals, wires with large distance are not needed to transmit the signals, the distance between the first board card 1 and the second board card 2 can be designed to be small, therefore, the signal transfer transmission structure can replace wire conduction in the whole link connection system, can reduce the structural space and has a simple structure.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A signal transfer transmission structure, comprising:

a first board card (1);

the second board card (2) is used for mounting a product to be tested and is arranged on one side of the first board card (1);

the switching module (5) is located between the first board card (1) and the second board card (2), the switching module (5) is provided with a probe (3), one end of the probe (3) is electrically connected with the first board card (1), and the other end of the probe is electrically contacted with the second board card (2).

2. The signal transfer transmission structure of claim 1, wherein:

the probe (3) can move in any direction relative to the first board card (1).

3. The signal transfer transmission structure of claim 2, wherein:

the signal transfer transmission structure further comprises a fixing piece (4) arranged between the first board card (1) and the second board card (2), and the transfer module (5) is mounted on the fixing piece (4) through a positioning screw (52);

the switching module (5) is provided with a mounting hole (51) for the positioning screw (52) to pass through, and a gap is formed between the mounting hole (51) and the positioning screw (52).

4. The signal transfer transmission structure of claim 3, wherein:

the fixing piece (4) is provided with an accommodating cavity (41) for accommodating the switching module (5), and a gap is formed between the accommodating cavity (41) and the switching module (5).

5. The signal transfer transmission structure of claim 3, wherein:

the switching module (5) can move along the axis of the positioning screw (52), and an elastic piece (53) is arranged between the switching module (5) and the fixing piece (4).

6. The signal transfer transmission structure of claim 1, wherein:

the second board card (2) is provided with a first conducting strip (21) contacted with the probe (3), and the diameter of the first conducting strip (21) is larger than that of the end part of the probe (3).

7. The signal transfer transmission structure of claim 1, wherein:

the first integrated circuit board (1) and the second integrated circuit board (2) are vertically arranged, a first electric connector (6) is arranged on the first integrated circuit board (1), and the first integrated circuit board (1) is electrically connected with the probe (3) through the first electric connector (6).

8. The signal-relay transmission structure according to claim 1, wherein the relay module (5) comprises:

an adapter plate (54) electrically connected to the first board (1);

the probe module assembly (55) is positioned on one side of the adapter plate (54), the probe module assembly (55) comprises the probe (3), one end of the probe (3) is in contact with the second board card (2), and the other end of the probe is in contact with the adapter plate (54).

9. The signal transfer transmission structure of claim 8, wherein:

the switching module (5) further comprises a second electric connector (56) positioned on the other side of the switching plate (54), and the switching plate (54) is electrically connected with the first board card (1) through the second electric connector (56).

10. A test apparatus, characterized in that it comprises a signal relay transmission structure according to any of claims 1-9.