CN207914746U - A kind of multi-chip eutectic graphite tooling - Google Patents
A kind of multi-chip eutectic graphite tooling Download PDFInfo
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- CN207914746U CN207914746U CN201820106785.4U CN201820106785U CN207914746U CN 207914746 U CN207914746 U CN 207914746U CN 201820106785 U CN201820106785 U CN 201820106785U CN 207914746 U CN207914746 U CN 207914746U
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- cover board
- chip
- locating module
- bottom plate
- slot
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Abstract
A kind of multi-chip eutectic graphite tooling, it includes cover board, be connected to the bottom plate of cover board, connection component and positioning component, cover board is connected with bottom plate by connection component, it is groove face that the top surface of bottom plate, which is concaved with locating module slot and the bottom of locating module slot, groove face sets to the concave to form support plate slot, positioning component includes locating module and briquetting, locating module is provided with the chip hole of connection top and bottom, locating module is installed in locating module slot, chip hole is connected with support plate slot and forms the space of chip placement, and briquetting is by the top closure in space；Bottom plate and cover board are oppositely arranged, and there is interval, bottom plate and cover board can be combined into entirety by way of mutually squeezing, positioning component is connected to bottom plate, and between bottom plate and cover board, bottom plate is connected with cover board by connection component connection component between bottom plate and cover board；The tooling can be accurately positioned chip position, the disposable loading eutectic operation for completing multi-chip.
Description
Technical field
The utility model is related to Electronic Assemblies fields, in particular relate to a kind of multi-chip eutectic graphite tooling.
Background technology
Eutectic refer at relatively low temperature eutectic solder there is a phenomenon where eutectic object fuse, eutectic alloy directly from
Liquid changes to solid-state, and without the plastic stage, it is a liquid while generates two solid balanced reactions.
Sn/Au eutectic, also known as gold-tin alloy, are by electrolysis that the Asia in plating solution is golden and stannous ion is according to quality
Score gold 80%, the content of tin 20% are deposited on the position of order formulation.Sn/Au eutectic contains AuSn and Au5Sn two-phases
Low temperature eutectic noble metal solder, thickness is controllable to design according to sedimentation time, and can at 300 DEG C with layer gold without helping weldering
Agent is directly welded.Welding temperature is only higher by 20~30 DEG C than the fusing point of alloy, in brazing process, based on the eutectic of alloy at
Point, the degree of superheat of very little can just make alloy melting and infiltrate；In addition, the process of setting of alloy carries out also quickly.Therefore, golden
The use of tin alloy can greatly shorten the entire brazing process period.The brazing temperature range of gold-tin alloy is suitable for stability
Exigent component assembling.
The eutectic welding tooling of the prior art, not having can also be by chip positioning and primary progress multi-chip eutectic weldering
Connect the tooling of operation.
Utility model content
The purpose of this utility model is to provide a kind of multi-chip eutectic graphite toolings, can be accurately positioned chip position
It sets, the disposable loading eutectic operation for completing multi-chip.
What the embodiments of the present invention were realized in：
A kind of multi-chip eutectic graphite tooling comprising cover board, the bottom plate for being connected to cover board, connection component and positioning group
Part, cover board and bottom plate are connected by connection component, and the top surface of bottom plate is concaved with the bottom of locating module slot and locating module slot
Portion is groove face, and groove face sets to the concave to form support plate slot, and positioning component includes locating module and briquetting, and locating module is provided with connection
The chip hole of top and bottom, locating module are installed in locating module slot, and chip hole is connected with support plate slot and forms placement
The space of chip, briquetting is by the top closure in space；Bottom plate and cover board are oppositely arranged, and have interval, bottom between bottom plate and cover board
The top surface of plate is parallel with the bottom surface of cover board, and bottom plate and cover board can be combined into entirety, positioning component by way of mutually squeezing
It is connected to bottom plate, between bottom plate and cover board, bottom plate is connected with cover board by connection component connection component.
In the utility model preferred embodiment, above-mentioned bottom plate is provided with multiple locating module slots, adjacent positioned module
There is interval between slot.
In the utility model preferred embodiment, the region of locating module slot, support plate slot at the top of above-mentioned bottom plate uses
Graphite piece or bottom plate use graphite piece.
In the utility model preferred embodiment, the bottom of above-mentioned briquetting is provided with frame, and frame is located at the bottom of briquetting
Portion edge, frame form bottom space around briquetting bottom, and frame is caught in the top of chip hole.
In the utility model preferred embodiment, above-mentioned briquetting is provided at least a pair of holding holes for picking and placeing, folder
Hole is held to be connected to the top bottom two sides of briquetting.
In the utility model preferred embodiment, above-mentioned connection component includes positioning column, and cover board is provided with connection top bottom
The first positioning post holes on two sides, positioning column pass through the first positioning post holes connecting cover plate, and the top surface of bottom plate sets to the concave to form second
Post holes is positioned, the second positioning post holes is opposite with the first positioning post holes, and one end of positioning column is connected in the second positioning post holes.
In the utility model preferred embodiment, above-mentioned multi-chip eutectic graphite tooling further includes weight needle, cover board setting
There is the heavy pin hole on connection top bottom two sides, the position of weight pin hole is opposite with locating module slot, and one end of weight needle is extended through weight pin hole
It will compress in locating module slot and at the top of briquetting.
In the utility model preferred embodiment, above-mentioned heavy pin hole includes weight needle tray and intercommunicating pore, the top of cover board to
It is inside recessed with weight needle tray, the bottom of weight needle tray is attached most importance to needle tray face, and the both ends of intercommunicating pore are respectively connected to weight needle tray face and cover board
Bottom surface.
In the utility model preferred embodiment, the bottom end of above-mentioned heavy needle is provided with needle end, and the cross section at needle end is less than
The cross section size of intercommunicating pore, bottom end and the weight pin hole of weight needle match.
The utility model has the beneficial effects that：
The utility model is welded by can disposably complete the eutectic of multi-chip by multiple locating module slots, cover board, bottom
The mutual cooperation of plate, locating module and briquetting is simple, can be readily achieved the assembly work of tooling, the positioning mould at the top of bottom plate
The setting of block slot and support plate slot can accurately position chip, determine the position of chip.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram of the utility model multi-chip eutectic graphite tooling；
Fig. 2 is the schematic diagram of the utility model cover board top surface；
Fig. 3 is the schematic diagram of the utility model plate top surface；
Fig. 4 is the schematic diagram in the utility model locating module section；
Fig. 5 is the schematic diagram of the utility model briquetting bottom surface；
Icon：100- multi-chip eutectic graphite toolings；110- cover boards；111- weight pin holes；112- weight needle trays；113- is connected to
Hole；114- weight needles；115- first positions post holes；120- bottom plates；121- locating module slots；122- support plate slots；123- positioning moulds
Block；124- holding holes；125- chip holes；126- briquettings；127- frames；128- second positions post holes；130- positioning columns.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "upper", "inner", "outside", "bottom"
Or position relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply phase
To importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
First embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of multi-chip eutectic graphite toolings 100 comprising bottom plate 120, cover board
110, connection component and positioning component, bottom plate 120 and cover board 110 are oppositely arranged, and have interval between bottom plate 120 and cover board 110,
The top surface of bottom plate 120 is parallel with the bottom surface of cover board 110, and bottom plate 120 and cover board 110 can be combined by way of mutually squeezing
Whole, positioning component is connected to bottom plate 120, and connection component is between bottom plate 120 and cover board 110, bottom plate 120 and cover board 110
It is connected by connection component；The tooling uses graphite material, and in chip, graphite heat conducting speed is fast, temperature is uniform, can
Chip is stably fixed in locating module 123.
Fig. 2,110 rectangular plate of cover board are please referred to, cover board 110 has top and bottom, and there are four the tools of cover board 110
Outer side edges, cover board 110 and bottom plate 120 are oppositely arranged, and the face opposite with bottom plate 120 of cover board 110 is the bottom surface of cover board 110, cover board
110 top surface is smooth, and cover board 110 is identical with the shape of bottom plate 120, has interval, cover board between cover board 110 and bottom plate 120
The plane where plane and bottom plate 120 where 110 is mutually parallel；The top surface of cover board 110 is concaved with weight pin hole 111, weight
Pin hole 111 is provided with 9 altogether, which is in 3 × 3 matrix arrangements, and weight pin hole 111 is distributed in cover board 110
Portion, when cover board 110 is harmonious with bottom plate 120, weight pin hole 111 is opposite with the position of support plate slot 122, and weight pin hole 111 includes weight needle tray
112 and intercommunicating pore 113, the top of 112 cover boards 110 of weight needle tray set to the concave to be formed, the bottom of weight needle tray 112 is attached most importance to needle tray
The groove face of weight needle tray 112 is connected by 112 groove face, intercommunicating pore 113 with the bottom surface of cover board 110, one end connection of intercommunicating pore 113
To weight needle tray 112, the other end of intercommunicating pore 113 is connect with the bottom of cover board 110, and the heavy needle tray 112 and intercommunicating pore 113 are distinguished
For cylindrical shape, the cylinder direction of cylinder is attached most importance to the connection direction of needle 114 and weight pin hole 111, the inside of the heavy needle tray 112
Face is the arcwall face of cylinder, which is shape of threads, and it is in cylindrical shape, needle that the bottom end of weight needle 114, which has needle end, the needle end,
End matches with connecting hole, and the length at needle end is more than the length of connecting hole, and the one end at needle end is connected to the bottom end of weight needle 114, needle
The other end at end is compressed briquetting 126 by connecting hole, and the bottom end side of weight needle 114 is provided with screw thread, the screw thread and weight needle tray
112 screw thread is mutually matched, and bottom end and the weight needle tray 112 of weight needle 114 are mutually matched, and weight needle 114 is fixed by way of rotation
In 110 top of cover board, when rotation weight needle 114 is fixed on cover board 110, needle end is by intercommunicating pore 113 and is inserted into locating module slot 121
Briquetting 126 is resisted afterwards；Cover board 110 is provided with the first positioning post holes 115, and the both ends of the first positioning post holes 115 are by cover board
110 top and bottom are connected, and the first positioning post holes 115 is distributed in the position at three angles of 110 4 jiaos of cover board, this first
The position for positioning post holes 115 is opposite with the first positioning 115 position of post holes of bottom plate 120, when cover board 110 and bottom plate 120 are harmonious, even
The first positioning post holes 115 that the both ends of connected components position post holes 115 and bottom plate 120 by the first of cover board 110 connects, cover board 110
By first positioning post holes 115 relative to connection component slidably.
Please refer to Fig. 3,120 rectangular plate of bottom plate, bottom plate 120 has a two sides, respectively the bottom surface of bottom plate 120 and
Top surface, the tool of bottom plate 120 is there are four outer side edges, and bottom plate 120 and cover board 110 are oppositely arranged, the face opposite with cover board 110 of bottom plate 120
Bottom surface for the top surface of bottom plate 120, bottom plate 120 is smooth, and bottom plate 120 is identical with the shape of cover board 110, bottom plate 120 and cover board 110
Between there is interval, the plane where plane and cover board 110 where bottom plate 120 is mutually parallel；The top surface of bottom plate 120 concaves
If forming locating module slot 121, which is provided with 9 locating module slots 121 altogether, has between adjacent positioned module slot 121
It is in 3 × 3 matrix arrangement to have interval, 9 locating module slots 121, which is distributed in bottom plate 120
Portion, locating module slot 121 set to the concave with groove face, which is the bottom surface of locating module slot 121, and groove face sets to the concave to be formed
The top surface of support plate slot 122, support plate slot 122 is located in the range of groove face, and the top surface of the support plate slot 122 is located at the centre bit of groove face
It sets, when bottom plate 120 and cover board 110 are harmonious, support plate slot 122 is opposite with the position of weight pin hole 111, and locating module slot 121 has card
Firmly 4 medial surfaces of locating module 123 are mutually perpendicular between the adjacent inboard face of locating module slot 121, locating module slot 121
Locating module 123 is stuck in inside, support plate slot 122 has 4 medial surfaces for blocking chip, the adjacent inboard face of support plate slot 122
Between be mutually perpendicular to, support plate slot 122 by the bottom card of chip inside it, 4 medial surfaces and support plate slot of locating module slot 121
122 4 medial surfaces difference is parallel；The top of bottom plate 120 is concaved with the second positioning post holes 128, the second positioning post holes 128
It is equipped with 3 altogether, which is distributed in three angles in the quadrangle of bottom plate 120, which uses
In the bottom end of connection positioning column 130；Bottom plate 120 uses graphite material, and in chip, graphite heat conducting speed is fast, temperature is equal
It is even, chip can be stably fixed in locating module 123.
Connection component includes positioning column 130, and positioning column 130 includes taper end column and butt end column, and taper end column is distinguished with butt end column
For cylinder, one end of taper end column is connected to one end of butt end column, the cylinder direction of taper end column and the cylinder direction one of butt end column
It causes, the diameter of taper end column is less than the diameter of butt end column, and the top of butt end column is taper, tapered top portion and the taper end column of butt end column
Lower shape size is identical, and the taper bottom of butt end column is identical as the rest part cross-sectional shape size of butt end column, taper end column
One end position 115 connecting cover plate 110 of post holes by the first of cover board 110, the bottom end of butt end column is connected to the of bottom plate 120
In two positioning post holes 128, when cover board 110 and bottom plate 120 are harmonious, cover board 110 is blocked on the top of butt end column, cover board 110 and bottom
There is interval between plate 120.
Fig. 4 is please referred to, locating module 123 matches with locating module slot 121, and locating module 123 in a rectangular parallelepiped shape, positions
Module 123 has 4 lateral surfaces, and locating module slot 121 has 4 medial surfaces, and the medial surface of locating module slot 121 is by positioning mould
The lateral surface of block 123 blocks, and locating module slot 121 blocks locating module 123, and locating module 123 is provided with holding holes 124
With chip hole 125, the top and bottom of locating module 123 are connected by holding holes 124 respectively with chip hole 125, chip hole 125
Positioned at the middle part of locating module 123, there are chip hole 125 4 medial surfaces, the adjacent inboard face of chip hole 125 to be mutually perpendicular to,
The medial surface of chip hole 125 is by chip card in hole, and when locating module 123 is caught in locating module slot 121, chip hole 125 is just
To support plate slot 122, chip hole 125 is connected with support plate slot 122, and after chip placing enters chip hole 125, the bottom of chip, which is inserted into, to be carried
In board slot 122, support plate slot 122 is by the bottom clamping of chip, and holding holes 124 share 2 pairs, and 2 pairs of holding holes 124 are located at core
The top and bottom of locating module 123 are connected to by the both sides of film perforation 125, holding holes 124, and holding holes 124 are used for locating module 123
Be removed and placed into, in use, a pair of of holding holes 124 are clamped and are taken out with tweezers.
Fig. 5 is please referred to, in a rectangular parallelepiped shape, 4 medial surfaces of briquetting 126 and chip hole 125 are formed by space to briquetting 126
Match, briquetting 126 is caught in the top closure by chip hole 125 in chip hole 125, and the surrounding of briquetting 126 has 4 outsides
Face, when briquetting 126 is caught in chip hole 125, the lateral surface of briquetting 126 and the medial surface of chip hole 125 are in contact, briquetting 126
There is the space to set to the concave, the space to be used for chip card for lateral surface, the upper flat of briquetting 126, the bottom of briquetting 126
In chip hole 125, the recessed space of 126 bottom of briquetting makes 4 frames, 127,4 frames 127 are formed on 126 bottom of briquetting will
The space surrounds, and is spaced between the frame 127 is narrower and adjacent frame 127, and opposite two frames 127 are mutually parallel, and adjacent two
Frame 127 is mutually perpendicular to, and chip is blocked in the inside of 4 frames 127, and the bottom of briquetting 126 is towards chip hole 125 when installation
Interior, chip is blocked and seals chip hole 125 by the frame 127 of 126 bottom of briquetting, when cover board 110 and bottom plate 120 are harmonious, pressure
The needle end of the bottom end of 126 weight needle 114 of block compresses the top surface of briquetting 126, and chip is fixed.
Multi-chip eutectic graphite tooling 100, assembly method is as follows：
A. support plate is installed in support plate slot 122；
B. locating module 123 is installed in locating module slot 121；
C. by gold-tin eutectic solder at the top of the chip hole 125 of locating module 123 injection support plate；
D. chip is positioned over by the chip hole 125 of locating module 123 at the top of gold-tin eutectic solder；
E. briquetting 126 is caught in the chip hole 125 of locating module 123 and pushed down at the top of chip；
F., positioning column 130 is connected to the second positioning post holes 128 of bottom plate 120；
G. weight needle 114 is fixed by the weight pin hole 111 at 110 top of cover board；
H. positioning column 130 is positioned into post holes 115 by the first of cover board 110 and cover board 110 is pushed down into bottom plate 120.
The operation principle of the example of the utility model is：
Support plate is installed in support plate slot 122, locating module 123 is placed in locating module slot 121, uses gold-tin alloy
Solder is simultaneously placed in by the chip hole of locating module 123 125, then chip is caught in chip hole 125, the bottom contact gold of chip
Chip is fixed in chip hole 125 using briquetting 126, then is separately connected lid by the both ends of positioning column 130 by tin alloy solder
First positioning post holes 115 of plate 110 and the second positioning post holes 128 of bottom plate 120, and make bottom surface and the bottom plate of cover board 110
120 top surface is harmonious, cover board 110 by the first positioning post holes 115 relative to bottom plate 120 slidably, the sliding of cover board 110 is by cover board
Spacing distance between 110 and bottom plate 120 reduces and cover board 110 is made to be pressed in 120 top of bottom plate, the bottom end of rotation weight needle 114
It fits into weight pin hole 111, the bottom end of weight needle 114 is compressed the top surface of briquetting 126 by weight pin hole 111.
The eutectic that the example of the utility model can disposably complete multi-chip by multiple locating module slots welds, cover board, bottom
The mutual cooperation of plate, locating module and briquetting is simple, can be readily achieved the assembly work of tooling, the positioning mould at the top of bottom plate
The setting of block slot and support plate slot can accurately position chip, determine the position of chip.
In conclusion the utility model assembling structure is simple, it can be accurately positioned chip position, disposably complete multi-chip
Loading eutectic operation.
Present specification describes the example of the embodiments of the present invention, it is not meant to that these embodiments illustrate and describe
The be possible to form of the utility model.It should be understood that the embodiment in specification can be implemented with a variety of alternative forms.Attached drawing without
It needs drawn to scale；Some features can be zoomed in or out to show the details of particular elements.Disclosed concrete structure and function are thin
Section is not taken by way of limitation explanation, and those skilled in the art is only instructed to implement the representative base of the utility model in a variety of forms
Plinth.It will be understood to one skilled in the art that can be with one or more with reference to multiple features that either figure illustrates and describes
The feature illustrated in other attached drawings is combined to form the embodiment for not yet explicitly illustrating or describing.The assemblage characteristic offer of explanation is used for
The representative embodiment of typical case.However, the multiple combinations of the feature consistent with the introduction of the utility model and modification can roots
According to need be used for specific application or implementation.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of multi-chip eutectic graphite tooling, which is characterized in that it includes cover board, is connected to the bottom plate of cover board, connection component
And positioning component, the cover board are connected with the bottom plate by the connection component, the top surface of the bottom plate, which is concaved with, determines
The bottom of position module slot and locating module slot is groove face, and the groove face sets to the concave to form support plate slot, and the positioning component includes
Locating module and briquetting, the locating module are provided with the chip hole of connection top and bottom, and the locating module is installed on institute
It states in locating module slot, the chip hole is connected with the support plate slot and forms the space of chip placement, and the briquetting is by institute
State the top closure in space.
2. multi-chip eutectic graphite tooling according to claim 1, which is characterized in that the bottom plate is provided with multiple positioning
Module slot has interval between the adjacent locating module slot.
3. multi-chip eutectic graphite tooling according to claim 1, which is characterized in that the locating module at the top of the bottom plate
Slot, support plate slot region use graphite piece using graphite piece or the bottom plate.
4. multi-chip eutectic graphite tooling according to claim 1, which is characterized in that the bottom of the briquetting is provided with side
Frame, the frame are located at the bottom margin of the briquetting, and the frame forms bottom space, the side around the briquetting bottom
Frame is caught in the top of the chip hole.
5. multi-chip eutectic graphite tooling according to claim 1, which is characterized in that the briquetting is provided at least a pair of
The top bottom two sides of the briquetting is connected to by the holding holes for picking and placeing, the holding holes.
6. multi-chip eutectic graphite tooling according to claim 1, which is characterized in that the connection component includes positioning
Column, the cover board are provided with the first positioning post holes on connection top bottom two sides, and the positioning column passes through the first positioning post holes to connect
The cover board is connect, the top surface of the bottom plate sets to the concave to form the second positioning post holes, the second positioning post holes and described first
Positioning post holes is opposite, and one end of the positioning column is connected in the second positioning post holes.
7. multi-chip eutectic graphite tooling according to claim 1, which is characterized in that the multi-chip eutectic graphite tooling
Further include weight needle, the cover board is provided with the heavy pin hole on connection top bottom two sides, position and the locating module of the heavy pin hole
Slot is opposite, and one end of the heavy needle is extended in the locating module slot by the heavy pin hole and supports the top of the briquetting
Pressure.
8. multi-chip eutectic graphite tooling according to claim 7, which is characterized in that the heavy pin hole include weight needle tray and
Intercommunicating pore, is concaved with weight needle tray at the top of cover board, and the bottom of the heavy needle tray is attached most importance to needle tray face, the both ends of the intercommunicating pore
It is respectively connected to the bottom surface in heavy the needle tray face and the cover board.
9. multi-chip eutectic graphite tooling according to claim 8, which is characterized in that the bottom end of the heavy needle is provided with needle
End, the cross section at the needle end are less than the cross section size of the intercommunicating pore, the bottom end of the heavy needle and the heavy pin hole phase
Match.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106785.4U CN207914746U (en) | 2018-01-22 | 2018-01-22 | A kind of multi-chip eutectic graphite tooling |
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| CN201820106785.4U CN207914746U (en) | 2018-01-22 | 2018-01-22 | A kind of multi-chip eutectic graphite tooling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015382A (en) * | 2018-01-22 | 2018-05-11 | 成都玖信科技有限公司 | A kind of multi-chip eutectic graphite frock and assembly method |
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2018
- 2018-01-22 CN CN201820106785.4U patent/CN207914746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015382A (en) * | 2018-01-22 | 2018-05-11 | 成都玖信科技有限公司 | A kind of multi-chip eutectic graphite frock and assembly method |
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