CN116541028A - Chip burning equipment based on pad on PCB - Google Patents
Chip burning equipment based on pad on PCB Download PDFInfo
- Publication number
- CN116541028A CN116541028A CN202310478454.9A CN202310478454A CN116541028A CN 116541028 A CN116541028 A CN 116541028A CN 202310478454 A CN202310478454 A CN 202310478454A CN 116541028 A CN116541028 A CN 116541028A
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- Prior art keywords
- needle
- plate
- device body
- burning
- die assembly
- 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.)
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- 239000000523 sample Substances 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000008093 supporting effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses chip burning equipment based on pad on a PCB (printed Circuit Board), which comprises a device body, wherein a control host is arranged in an inner cavity of the lower part of the device body, a pneumatic burning tool is arranged in an inner cavity of the middle part of the device body, a lower die assembly for placing a chip to be burned is arranged at the lower part of the pneumatic burning tool, an upper die assembly is arranged above the lower die assembly and can move up and down under the driving of the pneumatic burning tool, a inching switch and an emergency stop switch are arranged at the front side of the middle part of the device body, a display screen is arranged on the right side wall of the device body through a connecting assembly, and an indicator lamp group is arranged on a front side panel at the upper part of the device body. The remarkable effects are as follows: the on-line burning is performed based on the mode of reserving test points on the PCB, probes corresponding to the reserved test points are arranged, and secondary burning can be performed when program upgrading, newly-added data and the like occur.
Description
Technical Field
The invention relates to the technical field of integrated chip production, in particular to chip burning equipment based on pads on a PCB.
Background
In the industries of automobile electronics and the like, in order to avoid damage to an integrated chip caused by manual burning of the integrated chip, automatic off-line burning is often adopted. However, in the later stage, when secondary burning such as program upgrading and newly added data occurs, automatic off-line burning cannot be realized. Therefore, it is necessary to design an on-line recording device that can perform the secondary recording when necessary.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide chip burning equipment based on pad on a PCB, and the device performs on-line burning based on reserved test points on the PCB, so that secondary burning can be realized when needed.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a chip burning device based on pad on PCB is characterized in that: the device comprises a device body, wherein a control host is arranged in an inner cavity of the lower part of the device body, a pneumatic burning tool is arranged in an inner cavity of the middle part of the device body, a lower die assembly for placing a chip to be burned is arranged at the lower part of the pneumatic burning tool, an upper die assembly is arranged above the lower die assembly and can move up and down under the driving of the pneumatic burning tool, a inching switch and an emergency stop switch are arranged at the front side of the middle part of the device body, a display screen is arranged on the right side wall of the device body through a connecting assembly, and the indicating lamp set, the inching switch, the emergency stop switch and the display screen are all electrically connected with the control host;
the lower die assembly comprises a tray base plate arranged on the pneumatic burning tool, a lower die holder is arranged on the tray base plate, and a plurality of positioning and placing grooves for placing chips to be burned are arranged on the lower die holder side by side;
the upper die assembly comprises a needle plate cushion block connected with the pneumatic burning tool, a needle template is connected below the needle plate cushion block, a plurality of first needle dies and second needle dies are alternately arranged on the needle template, probes are arranged on the first needle dies and the second needle dies, a first copper column fixing block is arranged on the needle template between the first needle dies and the second needle dies, a second copper column fixing block is arranged on the needle template at the front sides of the first needle dies and the second needle dies, and pressing rods used for pressing and fixing chips to be burned are embedded on the first needle dies, the second needle dies, the first copper column fixing blocks and the second copper column fixing blocks.
Further, the pneumatic burning tool comprises a bottom plate, a lifting plate and a top plate, wherein the lifting plate and the top plate are sequentially arranged above the bottom plate, the bottom plate is provided with a lower die assembly, the bottom plate and the top plate are connected through a plurality of guide posts, the lifting plate is sleeved on the guide posts in a sliding manner, a lifting cylinder is fixed on the top plate, the telescopic end of the lifting cylinder is connected with the upper surface of the lifting plate, and the lower surface of the lifting plate is provided with an upper die assembly.
Further, the left side, the right side and the rear side of the bottom plate are connected with the top plate through the supporting plates.
Further, at least three positioning pins are arranged on the bottom plate, and the lower die assembly is inserted into the positioning pins.
Furthermore, a connecting block is also fixed on the lifting plate, a drag chain is connected on the connecting block, and the other end of the drag chain upwards penetrates through the top plate and then is connected with the connecting plate on the top plate.
Further, a containing cavity is formed in the needle plate cushion block, a plurality of first needle mold protecting blocks and second needle mold protecting blocks are arranged in the containing cavity, the first needle mold protecting blocks are arranged in one-to-one correspondence with the first needle molds, the second needle mold protecting blocks are arranged in one-to-one correspondence with the second needle molds, and the upper parts of the probes are embedded in the first needle mold protecting blocks and the second needle mold protecting blocks.
Further, the coupling assembling include with device body right side wall fixed connection's installation piece is provided with the axis of rotation on this installation piece, it is connected with first linking arm to rotate in the axis of rotation the other end of first linking arm is connected with the installation pole, is provided with the board of placing that is used for placing keyboard, mouse in the lower part of installation pole through first articulated elements the upper portion of installation pole through the second articulated elements with display screen fixed connection.
Further, the device body comprises a main body frame and a sealing plate arranged on the main body frame, wherein a plurality of foot cup assemblies are arranged at the bottom of the main body frame, and three-color warning lamps are arranged on the sealing plate at the top of the main body frame.
Further, the main body frame comprises two first stand columns, two second stand columns, two third stand columns and two fourth stand columns which are sequentially arranged above the second stand columns, the two first stand columns are connected with each other through a cross beam, the second stand columns are connected with the third stand columns, and the third stand columns are connected with the fourth stand columns through partition plates, and the partition plates are fixedly connected with the first stand columns and the cross beam.
The invention has the remarkable effects that: the method is characterized in that an on-line burning is performed based on a mode of reserving test points on a PCB, the test points are reserved at the beginning of PCB design, automatic needle insertion to the test points is realized through automatic control, the contact condition is actively perceived, automatic on-line burning is realized, and meanwhile, due to the fact that probes corresponding to the reserved test points are arranged, secondary burning can be performed when program upgrading, new data adding and the like occur.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a schematic structural diagram of a pneumatic programming tool;
FIG. 6 is a front view of a pneumatic programming tool;
FIG. 7 is a schematic structural view of the upper and lower mold assemblies;
FIG. 8 is one of the schematic structural views of the lower die assembly;
FIG. 9 is a second schematic diagram of the lower mold assembly;
FIG. 10 is one of the schematic structural views of the upper die assembly;
FIG. 11 is a second schematic structural view of the upper module.
Detailed Description
The following describes the embodiments and working principles of the present invention in further detail with reference to the drawings.
As shown in fig. 1-4, a chip burning device based on pad on PCB comprises a device body 1, a control host 2 is arranged in a lower inner cavity of the device body 1, a pneumatic burning tool 3 is arranged in a middle inner cavity of the device body 1, a lower module 4 for placing a chip s to be burned is arranged at the lower part of the pneumatic burning tool 3, an upper module 5 is arranged above the lower module 4, the upper module 5 can move up and down under the driving of the pneumatic burning tool 3, a inching switch and an emergency stop switch 7 are arranged at the front side of the middle part of the device body 1, a display screen 9 is arranged on the right side wall of the device body 1 through a connecting component 8, an indicator lamp set 6 is arranged on a front panel 10 at the upper part of the device body 1, the indicator lamp set 6, the inching switch 6, the emergency stop switch 7 and the display screen 9 are all electrically connected with the control host 2, and the pneumatic burning tool 3 is partially stretched into the upper inner cavity of the device body 1.
The equipment adopts a mode of reserving test points on the PCB for online burning, because the test points are reserved at the beginning of PCB design, when the control host 2 controls the upper die assembly 5 and the lower die assembly 4 to be assembled, the probes of the upper die assembly 5 are pricked to the reserved test points on the PCB, the contact condition is actively perceived, the control host 2 controls the burner to start burning, and after the burning is finished, the air cylinder in the pneumatic burning tool 3 is lifted, and the PCB is taken out to finish online burning.
Referring to fig. 1, the device body 1 includes a main frame 101 and a sealing plate 102 mounted on the main frame 101, wherein a plurality of cup assemblies 103 are arranged at the bottom of the main frame 101, and the cup assemblies 103 can not only realize easy movement of the device, but also ensure stability of production positions; a three-color warning lamp 104 is arranged on the sealing plate 102 at the top, and the production state of the equipment can be remarkably warned and prompted through the three-color warning lamp 104;
the main body frame 101 includes two first columns 1011, two second columns 1012, two third columns 1013 and two fourth columns 1014 sequentially above the second columns 1012, the first columns 1011 and the first columns 1011 are connected with the second columns 1012, the third columns 1013 and the fourth columns 1014 through cross beams 1015, the second columns 1012 and the third columns 1013 and the fourth columns 1014 are connected with each other through partition boards, and the partition boards are fixedly connected with the first columns 1011 and the cross beams 1015.
The frame structure formed by the first upright 1011, the second upright 1012, the third upright 1013 and the fourth upright 1014 is adopted, so that the production is convenient, the dead weight of the device is reduced, the layout of the whole device can be reasonably planned, and various necessary parts are convenient to set.
As shown in fig. 2, the connecting assembly 8 includes a mounting block 81 fixedly connected to the right side wall of the device body 1, a rotating shaft 82 is provided on the mounting block 81, a first connecting arm 83 is rotatably connected to the rotating shaft 82, a mounting rod 84 is connected to the other end of the first connecting arm 83, a placement plate 86 for placing a keyboard and a mouse is provided on the lower portion of the mounting rod 84 through a first hinge 85, and the upper portion of the mounting rod 84 is fixedly connected to the display screen 9 through a second hinge.
The connecting component 8 with the structure can enable the installed display screen 9 and the placing plate 86 to rotate at any angle in the axial direction of the installation rod 84, and can adjust the height of the installation rod, so that the installation rod is more suitable for production workers. In addition, the setting of the placement board 86 may be such that a keyboard, a mouse, or the like is provided thereon, thereby setting parameters involved in the production process based on the mouse.
Referring to fig. 5-7, the pneumatic recording tool 3 includes a bottom plate 31, a lifting plate 32 and a top plate 33, wherein the lifting plate 32 and the top plate 33 are sequentially arranged above the bottom plate 31, the bottom plate 31 is provided with the lower die assembly 4, the bottom plate 31 and the top plate 33 are connected through a plurality of guide posts 34, the lifting plate 32 is sleeved on the guide posts 34 in a sliding manner, a lifting cylinder 35 is fixed on the top plate 33, the telescopic end of the lifting cylinder 35 is connected with the upper surface of the lifting plate 32, and the lower surface of the lifting plate 32 is provided with the upper die assembly 5.
During production, the lifting air cylinder 35 drives the lifting plate 32 to move upwards along the guide post 34, after the chip s to be burnt is loaded in the lower die assembly 4, the lifting air cylinder 35 drives the lifting plate 32 to move downwards along the guide post 34, so that the upper die assembly 5 and the lower die assembly 4 are assembled, probes of the upper die assembly 5 are pricked to reserved test points on a PCB, the burner is controlled to start burning, the air cylinder is lifted after the burning is finished, and the PCB is taken out to finish online burning.
Further, the left and right sides and the rear side of the bottom plate 31 are connected to the top plate 33 through support plates 36.
The supporting plate 36 can provide better supporting effect for the top plate 33, so that the structural strength and structural stability of the whole tool are guaranteed, the tool can withstand more lifting impact during production, and the service life of the tool is powerfully guaranteed.
Further, at least three positioning pins are provided on the bottom plate 31, and the lower die assembly 4 is inserted into the positioning pins.
The lower die assembly 4 can be conveniently replaced by adopting the inserting and fixing mode of the locating pin, so that the die changing speed in the process of producing different products can be increased.
Further, a connection block 37 is further fixed on the lifting plate 32, a drag chain 38 is connected to the connection block 37, and the other end of the drag chain 38 passes through the top plate 33 upwards and then is connected to a connection plate 39 on the top plate 33.
By the drag chain 38, the up-and-down movement process of the lifting plate 32 can be more stable, the lifting plate 32 can be ensured to move up and down integrally, and each probe in the upper die assembly 5 can be ensured to be in good contact with the chip on the lower die assembly 4, so that the burning effect is ensured.
As shown in fig. 8 and 9, the lower die assembly 4 includes a tray base 41 disposed on the pneumatic burning tool 3, a lower die holder 42 is disposed on the tray base 41, and a plurality of positioning slots 43 for placing chips s to be burned are disposed on the lower die holder 42 side by side.
Through a plurality of location standing grooves 43 that set up, can once only put into a plurality of chips of waiting to burn for this equipment can once only burn a plurality of chips, and then help improving the burning machining efficiency of enterprise.
Referring to fig. 10 and 11, the upper die assembly 5 includes a needle plate pad 51 connected with the pneumatic burning tool 3, a needle template 52 is connected below the needle plate pad 51, a plurality of first needle dies 53 and second needle dies 54 are alternately arranged on the needle template 52, probes 55 are arranged on the first needle dies 53 and the second needle dies 54, a first copper column fixing block 56 is arranged on the needle template 52 between the first needle dies 53 and the second needle dies 54, a second copper column fixing block 57 is arranged on the needle template 52 at the front sides of the first needle dies 53 and the second needle dies 54, and pressing rods 58 for pressing and fixing the chip s to be burned are respectively embedded on the first needle dies 53, the second needle dies 54, the first copper column fixing blocks 56 and the second copper column fixing blocks 57.
The upper die assembly 5 can move up and down under the driving of the lifting cylinder, when the die is closed and burnt, the pressing rod is contacted with the chip to be burnt, then the probes 55 on the first needle die 53 and the second needle die 54 are contacted with the reserved test points on the PCB, the burner is controlled to start burning, the lifting cylinder of the pneumatic burning tool 3 drives the upper die assembly 5 to move up to open the die after the burning is completed, the probes 55 on the first needle die 53 and the second needle die 54 and the pressing rod are separated from the chip to be burnt in sequence, and then the burnt chip is taken out.
In this embodiment, based on the last mould subassembly and lower mould subassembly of above-mentioned structure, through the locating slot that lower mould subassembly set up and go up the pressure stick of inlaying on first needle mould, the second needle mould of mould subassembly, when the compound die burns, the pressure that receives with last mould subassembly is transmitted to the lower mould subassembly in order to be with waiting to burn the good compress tightly of chip fixed to ensure that probe and burning point contact are good, ensure the burning quality.
Further, a receiving cavity 511 is formed in the needle plate cushion block 51, a plurality of first needle module protecting blocks 512 and second needle module protecting blocks 513 are disposed in the receiving cavity 511, the first needle module protecting blocks 512 and the first needle modules 53 are disposed in one-to-one correspondence to protect the probes 55, the second needle module protecting blocks 513 and the second needle modules 54 are disposed in one-to-one correspondence to each other, and the upper portions of the probes 55 are embedded in the first needle module protecting blocks 512 and the second needle module protecting blocks 513.
The first pin mold protection block 512 and the second pin mold protection block 513 are provided to prevent the first pin mold 53 and the second pin mold 54 from being damaged by impact during mold closing.
In the burning device according to the embodiment, the on-line burning is performed based on the manner of reserving the test points on the PCB, because the test points are reserved at the beginning of the PCB design, when the control host 2 controls the upper die assembly 5 to be matched with the lower die assembly 4, the probes of the upper die assembly 5 are pricked to the reserved test points on the PCB, and actively sense the contact condition, the control host 2 controls the burner to start burning, thereby realizing the automatic on-line burning, and meanwhile, due to the arrangement of the probes corresponding to the reserved test points, the secondary burning can be performed when the program upgrading, the new data adding and other conditions occur.
The technical scheme provided by the invention is described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (9)
1. A chip burning device based on pad on PCB, its characterized in that: the device comprises a device body, wherein a control host is arranged in an inner cavity of the lower part of the device body, a pneumatic burning tool is arranged in an inner cavity of the middle part of the device body, a lower die assembly for placing a chip to be burned is arranged at the lower part of the pneumatic burning tool, an upper die assembly is arranged above the lower die assembly and can move up and down under the driving of the pneumatic burning tool, a inching switch and an emergency stop switch are arranged at the front side of the middle part of the device body, a display screen is arranged on the right side wall of the device body through a connecting assembly, and the indicating lamp set, the inching switch, the emergency stop switch and the display screen are all electrically connected with the control host;
the lower die assembly comprises a tray base plate arranged on the pneumatic burning tool, a lower die holder is arranged on the tray base plate, and a plurality of positioning and placing grooves for placing chips to be burned are arranged on the lower die holder side by side;
the upper die assembly comprises a needle plate cushion block connected with the pneumatic burning tool, a needle template is connected below the needle plate cushion block, a plurality of first needle dies and second needle dies are alternately arranged on the needle template, probes are arranged on the first needle dies and the second needle dies, a first copper column fixing block is arranged on the needle template between the first needle dies and the second needle dies, a second copper column fixing block is arranged on the needle template at the front sides of the first needle dies and the second needle dies, and pressing rods used for pressing and fixing chips to be burned are embedded on the first needle dies, the second needle dies, the first copper column fixing blocks and the second copper column fixing blocks.
2. The pad-on-PCB based chip burning apparatus of claim 1, wherein: the pneumatic burning tool comprises a bottom plate, a lifting plate and a top plate, wherein the lifting plate and the top plate are sequentially arranged above the bottom plate, the bottom plate is provided with a lower die assembly, the bottom plate is connected with the top plate through a plurality of guide posts, the lifting plate is sleeved on the guide posts in a sliding manner, a lifting cylinder is fixed on the top plate, the telescopic end of the lifting cylinder is connected with the upper surface of the lifting plate, and the lower surface of the lifting plate is provided with the upper die assembly.
3. The pad-on-PCB based chip burning apparatus of claim 2, wherein: the left side, the right side and the rear side of the bottom plate are connected with the top plate through the supporting plates.
4. The pad-on-PCB based chip burning apparatus of claim 2, wherein: at least three locating pins are arranged on the bottom plate, and the lower die assembly is inserted into the locating pins.
5. The pad-on-PCB based chip burning apparatus of claim 2, wherein: the lifting plate is also fixedly provided with a connecting block, the connecting block is connected with a drag chain, and the other end of the drag chain upwards penetrates through the top plate and then is connected with the connecting plate on the top plate.
6. The pad-on-PCB based chip burning apparatus of claim 1, wherein: the needle plate cushion block is internally provided with a containing cavity, a plurality of first needle module protection blocks and second needle module protection blocks are arranged in the containing cavity, the first needle module protection blocks are arranged in one-to-one correspondence with the first needle modules, the second needle module protection blocks are arranged in one-to-one correspondence with the second needle modules, and the upper parts of the probes are embedded in the first needle module protection blocks and the second needle module protection blocks.
7. The pad-on-PCB based chip burning apparatus of claim 1, wherein: the connecting assembly comprises a mounting block fixedly connected with the right side wall of the device body, a rotating shaft is arranged on the mounting block, a first connecting arm is rotationally connected to the rotating shaft, the other end of the first connecting arm is connected with a mounting rod, a placing plate for placing a keyboard and a mouse is arranged at the lower part of the mounting rod through a first hinge, and the upper part of the mounting rod is fixedly connected with the display screen through a second hinge.
8. The pad-on-PCB based chip burning apparatus of claim 1, wherein: the device body comprises a main body frame and a sealing plate arranged on the main body frame, wherein a plurality of foot cup assemblies are arranged at the bottom of the main body frame, and three-color warning lamps are arranged on the sealing plate at the top of the main body frame.
9. The pad-on-PCB based chip burning apparatus according to any one of claims 1 to 8, wherein: the main body frame comprises two first stand columns, two second stand columns, two third stand columns and two fourth stand columns which are sequentially arranged above the second stand columns, the two first stand columns are connected with each other through a cross beam, the second stand columns are connected with the third stand columns, and the third stand columns are connected with the fourth stand columns through partition plates, and the partition plates are fixedly connected with the first stand columns and the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310478454.9A CN116541028A (en) | 2023-04-28 | 2023-04-28 | Chip burning equipment based on pad on PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310478454.9A CN116541028A (en) | 2023-04-28 | 2023-04-28 | Chip burning equipment based on pad on PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116541028A true CN116541028A (en) | 2023-08-04 |
Family
ID=87448091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310478454.9A Pending CN116541028A (en) | 2023-04-28 | 2023-04-28 | Chip burning equipment based on pad on PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116541028A (en) |
-
2023
- 2023-04-28 CN CN202310478454.9A patent/CN116541028A/en active Pending
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