Steel seal marking device and chip loader

By installing a steel marking device on the chip loader, the problems of low laser marking efficiency and dust pollution are solved, and efficient, low-cost, pollution-free frame identification is achieved to ensure that the characters are recognizable after electroplating.

CN223116107UActive Publication Date: 2025-07-18WUXI LINLI SCI & TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422535869.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-07-18
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

In the prior art, in the semiconductor packaging process, laser marking method is inefficient, easy to cause dust pollution, and there is a risk of mixing, making it difficult to identify characters after electroplating.

Method used

The steel stamping marking device is adopted, including a support frame and a slide rail assembly. The fixed seat of the slide rail assembly moves up and down along the slide rail, and is connected with a steel stamp head and character block, which is directly installed on the chip loader. The frame marking is synchronized during the production of the patch. The character block is fixed to the bottom of the steel stamp head through a press plate for easy replacement.

Benefits of technology

It achieves no need to mark in advance, avoid mixing risks, reduce costs, avoid dust pollution, and ensure that characters do not fall off after electroplating, making it easier to identify subsequently.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223116107U_ABST
    Figure CN223116107U_ABST
Patent Text Reader

Abstract

The utility model provides a steel seal marking device and a chip loader, the steel seal marking device comprises a support frame and a slide rail assembly, a fixed seat of the slide rail assembly can move up and down along a slide rail, the side wall of the fixed seat is connected with a steel seal head, the bottom of the steel seal head is connected with a character block, and the bottom surface of a vertical rod of the character block is engraved with convex characters. And a steel seal is stamped on the frame during downward pressing. The steel seal marking device can be directly installed on the chip mounting machine, frame identification printing is synchronously carried out when the steel seal marking device and the chip mounting machine carry out chip mounting production, marking does not need to be carried out on a frame in advance, and the material mixing risk does not exist; meanwhile, the character block is pressed in the mounting groove in the bottom surface of the steel seal head through the pressing plate, so that the character block is convenient to replace; a steel seal marking mode replaces an existing laser marking mode, cost is low, dust is not generated, and pollution to chip production is avoided. In addition, the steel seal is not easy to fall off on the frame, the character is not easy to cover even after electroplating production, and the problem that the character cannot be identified in the subsequent process is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of marking, in particular to a steel seal marking device and a chip mounter. Background Art

[0002] The technological process of semiconductor packaging mainly includes chip mounting - wire bonding - plastic encapsulation - electroplating - lead frame trimming - inspection. Among them, the chip mounting process is to remove the cut chips from the blue film and place them on the lead frame to prepare for the next wire bonding. This process is usually realized by a chip mounter (also called a pick - and - place machine) for automated operation.

[0003] During chip mounting, the chips are mounted on the surface of the frame, and different wafers can be identified by the naked eye to confirm different product types. When the product goes through plastic encapsulation, the wafer is wrapped inside the plastic package, and the appearance of the products is the same, making it impossible to identify whether they are products of the same name by the naked eye. When electroplating production is carried out, if there is a mixing material abnormality, it is very difficult for personnel to discover and quickly determine whether they are the same product. Therefore, it is necessary to make a corresponding character mark on the frames of different products during chip mounting so as to check whether the product names are the same and whether there is a mixing material abnormality in subsequent processes.

[0004] The currently commonly used marking method is to uniformly laser - print the frame before chip mounting to distinguish product batches and product names. However, this method has many drawbacks: before chip mounting, it is necessary to uniformly print marks on the frame in one or more laser machines by laser in advance, and then transport the frame to the chip mounter, increasing the operation process; if the frame is not checked before being loaded onto the chip mounter, there is still a risk of mixing materials; different frames corresponding to different products need to switch different marking symbols back and forth during laser marking, with low efficiency; in addition, the laser marking method generates more dust and is prone to causing pollution. Summary of the Utility Model

[0005] In view of the above - mentioned disadvantages of the prior art, the utility model provides a steel seal marking device. The steel seal marking device includes a support frame and a slide rail assembly fixed to the side wall of the support frame. The slide rail assembly includes a slide rail and a fixed seat. The fixed seat can move up and down along the slide rail. A steel seal head is connected to the side wall of the fixed seat, and a character block is connected to the bottom of the steel seal head. The character block is T - shaped and includes a horizontal bar and a vertical bar connected vertically. The bottom surface of the vertical bar is engraved with convex characters to stamp a steel seal on the frame when pressing down.

[0006] An installation groove is opened on the bottom surface of the steel seal head for accommodating the horizontal bar of the character block. A pressing plate is covered on the bottom surface of the steel seal head to clamp the horizontal bar in the installation groove. The pressing plate is provided with an opening for the vertical bar of the character block to pass through.

[0007] Optionally, the support frame includes at least three parallel support columns, the slide rail is installed on the side wall of the first support column, and the steel seal head is located between the second support column and the third support column.

[0008] Optionally, an upper cover plate is provided at the top of the support column, a cylinder is fixed on the upper cover plate, and the movable end of the cylinder is connected downward to a fixed seat.

[0009] Optionally, the support column is fixed on the bottom plate, and the bottom plate is connected with support feet by bolts, and the bottom plate is leveled by the support feet.

[0010] Optionally, the steel seal head is connected to the fixed seat by a transverse bolt.

[0011] Optionally, a plurality of character blocks are installed in the installation groove and arranged in a straight line.

[0012] The present utility model further provides a chip mounter, including the described steel seal marking device.

[0013] Optionally, the steel seal marking device is installed at the feeding position of the frame track of the chip mounter.

[0014] As described above, the present utility model provides a steel seal marking device and a chip mounter. The steel seal marking device includes a support frame and a slide rail assembly. The fixed seat of the slide rail assembly can move up and down along the slide rail. A steel seal head is connected to the side wall of the fixed seat. The bottom of the steel seal head is connected with a character block. The bottom surface of the vertical rod of the character block is engraved with convex characters to stamp the frame when pressing down. The steel seal marking device can be directly installed on the chip mounter, and the frame identification printing is carried out synchronously during the chip mounting production of the chip mounter, without the need to pre-mark the frame in advance, and there is no risk of material mixing. At the same time, the character block is pressed tightly in the installation groove at the bottom surface of the steel seal head, which is convenient for replacing the character block. The existing laser marking form is replaced by the form of steel seal marking, with low cost and no dust generated, and it will not cause pollution to the chip production. In addition, the steel seal is not easy to fall off on the frame, and it is not easy to cover the characters even after electroplating production, avoiding the problem that the characters cannot be identified in the subsequent process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It shows a three-dimensional structural schematic diagram of the steel seal marking device in Embodiment 1 of the present utility model.

[0016] Figure 2 It shows a three-dimensional structural schematic diagram of the steel seal head in Embodiment 1 of the present utility model.

[0017] Figure 3 It shows a side view structural schematic diagram of the character block in Embodiment 1 of the present utility model.

[0018] Figure 4It shows a schematic side view structure of the steel seal marking device in the first embodiment of the present utility model.

[0019] Figure 5 It shows a schematic side view structure of the steel seal head in the first embodiment of the present utility model.

[0020] Element reference numeral description

[0021] 11 First support column

[0022] 12 Second support column

[0023] 13 Third support column

[0024] 14 Upper cover plate

[0025] 15 Bottom plate

[0026] 21 Slide rail

[0027] 22 Fixed seat

[0028] 23 Steel seal head

[0029] 24 Character block

[0030] 241 Cross bar

[0031] 242 Vertical bar Detailed implementation manners

[0032] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0033] When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples and should not limit the protection scope of the present utility model here. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0034] For ease of description, spatial relationship terms such as "below", "beneath", "lower than", "under", "above", "on" etc. may be used herein to describe the relationship of one element or feature shown in the drawings with other elements or features. It will be understood that these spatial relationship terms are intended to encompass other orientations of the device in use or operation, in addition to the orientation depicted in the drawings. Further, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or there can be one or more intervening layers. As used herein, "between... and" means including the endpoint values.

[0035] In the context of the present application, the structure in which the first feature is "above" the second feature as described may include an embodiment where the first and second features are formed in direct contact, or may include an embodiment where additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0036] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0037] Embodiment 1

[0038] As Figures 1 to 5 shown, this embodiment provides a steel seal marking device. The steel seal marking device includes a support frame and a slide rail assembly fixed to the side wall of the support frame. The slide rail assembly includes a slide rail 21 and a fixed seat 22. The fixed seat 22 can move up and down along the slide rail 21. A steel seal head 23 is connected to the side wall of the fixed seat 22. A character block 24 is connected to the bottom of the steel seal head 23. The character block 24 is T-shaped and includes a horizontal bar 241 and a vertical bar 242 connected vertically. The bottom surface of the vertical bar 242 is engraved with convex characters to stamp the frame when pressed down.

[0039] An installation groove is formed on the bottom surface of the steel seal head 23 for accommodating the horizontal bar 241 of the character block 24. A pressing plate is provided on the bottom surface of the steel seal head 23. The pressing plate is provided with an opening for the vertical bar 242 of the character block 24 to pass through. The pressing plate is used to clamp the horizontal bar in the installation groove. The pressing plate is pressed on the bottom surface of the steel seal head by screws to form a restriction on the character block.

[0040] Further, the support frame includes at least three parallel support columns. The slide rail 21 is installed on the side wall of the first support column 11. The steel seal head 23 is located between the second support column 12 and the third support column 13. The steel seal head 23 is connected to the fixed seat 22 by a transverse bolt for easy disassembly and assembly operations.

[0041] Further, an upper cover plate 14 is provided at the top end of the support column. A cylinder is fixed to the upper cover plate 14, and the movable end of the cylinder is connected downward to a fixed seat 22 to drive the up and down movement of the fixed seat 22 in the vertical direction.

[0042] Further, the support column is fixed to a bottom plate 15, and the bottom plate 15 is connected with support feet through bolts to level the bottom plate through the support feet.

[0043] Further, a plurality of character blocks 24 are installed in the installation groove and arranged in a straight line. The convex characters on the bottom surface of the vertical rod include 1, 2, 3, 4, A, B, C, D, etc., so as to form different character marks on the frame.

[0044] Further, the steel stamp marking device further includes a control unit, and the control unit is communicatively connected with the cylinder to control the operation of the cylinder.

[0045] The using process of the above steel stamp marking device is as follows: according to the mark to be formed on the frame, select the corresponding combination of character blocks, install the character blocks in the installation groove on the bottom surface of the steel stamp head, then install the steel stamp head on the fixed seat, the movable end of the cylinder is connected above the fixed seat, and the whole steel stamp marking device is installed at the feeding place of the frame track of the chip mounter. When the frame passes through the steel stamp marking device, compressed air is introduced into the cylinder to drive the steel stamp head to slide downward to strike the surface of the frame, leaving the same character on the surface of the frame. When producing different products, different steel stamp character blocks need to be replaced, and the subsequent process can confirm whether it is the same product by identifying the characters.

[0046] This steel stamp marking device can be directly installed on the chip mounter, and the frame identification printing is carried out synchronously during the chip mounting production of the chip mounter, without the need to pre-mark the frame in advance, and there is no risk of mixing materials; at the same time, the character blocks are pressed in the installation groove on the bottom surface of the steel stamp head by a pressing plate, which is convenient for replacing the character blocks, and the character replacement can be completed in five minutes; it replaces the existing laser marking form with the form of steel stamp marking, with low cost and no dust generation, and will not cause pollution to the chip production; in addition, the steel stamp is not easy to fall off on the frame, and even after electroplating production, it is not easy to cover the characters, avoiding the problem that the subsequent process cannot identify the characters.

[0047] Embodiment 2

[0048] Based on the steel stamp marking device in the above Embodiment 1, this embodiment provides a chip mounter, and at least one of the steel stamp marking devices is installed on the chip mounter. Specifically, the steel stamp marking device is installed at the feeding place of the frame track of the chip mounter to mark the frames conveyed to the chip mounter one by one.

[0049] The chip mounter further includes conventional components such as a feeder, a nozzle head, a slide rail, etc. Regarding the specific structural components of the chip mounter, no more details will be described here.

[0050] In summary, the present utility model provides a steel seal marking device and a chip mounter. The steel seal marking device includes a support frame and a slide rail assembly. The fixed seat of the slide rail assembly can move up and down along the slide rail. A steel seal head is connected to the side wall of the fixed seat, and a character block is connected to the bottom of the steel seal head. The bottom surface of the vertical rod of the character block is engraved with convex characters for stamping the frame when pressing down. This steel seal marking device can be directly installed on the chip mounter to synchronously print the frame identification during the chip mounting production with the chip mounter, without the need to pre-stamp the frame in advance, and there is no risk of material mixing. At the same time, the character block is pressed tightly in the installation groove at the bottom surface of the steel seal head by a pressing plate, which is convenient for replacing the character block. The existing laser marking form is replaced by the form of steel seal marking, with low cost and no dust generated, and it will not cause pollution to the chip production. In addition, the steel seal is not easy to fall off on the frame, and even after electroplating production, it is not easy to cover the characters, avoiding the problem that the characters cannot be identified in the subsequent processes.

[0051] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A steel seal marking device, characterized in that, The steel seal marking device includes a support frame and a slide rail assembly fixed to the side wall of the support frame. The slide rail assembly includes a slide rail and a fixed seat. The fixed seat can move up and down along the slide rail. A steel seal head is connected to the side wall of the fixed seat, and a character block is connected to the bottom of the steel seal head. The character block is T-shaped and includes a horizontal bar and a vertical bar connected vertically. The bottom surface of the vertical bar is engraved with convex characters to stamp the frame when pressed down. An installation groove is formed on the bottom surface of the steel seal head for accommodating the horizontal bar of the character block. A pressing plate is provided on the bottom surface of the steel seal head to clamp the horizontal bar in the installation groove. The pressing plate is provided with an opening for the vertical bar of the character block to pass through.

2. The steel seal marking device according to claim 1, characterized in that: The support frame includes at least three parallel support columns. The slide rail is installed on the side wall of the first support column, and the steel seal head is located between the second support column and the third support column.

3. The steel seal marking device according to claim 2, characterized in that: An upper cover plate is provided at the top of the support column, and a cylinder is fixed to the upper cover plate. The movable end of the cylinder is connected downward to the fixed seat.

4. The steel seal marking device according to claim 2, wherein: The support column is fixed to the bottom plate, and the bottom plate is connected with support feet through bolts to level the bottom plate through the support feet.

5. The steel seal marking device according to claim 1, characterized in that: The steel seal head is connected to the fixed seat through a horizontal bolt.

6. The steel seal marking device according to claim 1, characterized in that: Multiple character blocks are installed in the installation groove and arranged in a straight line.

7. A loading machine, characterized in that: It includes the steel seal marking device according to any one of claims 1-6.

8. The loader according to claim 7, wherein: The steel seal marking device is installed at the feeding position of the frame track of the loading machine.