PTH square groove manufacturing method and PCB

Abstract

The invention discloses a PTH square groove manufacturing method and a PCB, and the method comprises the steps: obtaining the size of a to-be-manufactured PTH square groove in the PCB; according to the size of the PTH square groove to be manufactured, the size of a drilling tool adopted on drilling equipment is determined; according to the size of the drilling tool and the size of the PTH square groove to be manufactured, the PTH square groove to be manufactured is divided into four drilling grooves, and the sizes of the four drilling grooves are determined; and according to the sizes of the four drilling grooves, the drilling tool on the drilling equipment is controlled to drill holes in the corresponding positions of the PCB, and the PTH square groove is obtained. The length and width dimensional tolerance of the manufactured PTH square groove can reach + / -2mi l, the requirement for the high-precision tolerance of the PTH square groove in a PCB can be met, manufacturing of the high-precision PTH square groove can be facilitated, and the heat dissipation requirement of the PCB can be better met.

Description

Technical Field

[0001] The present application relates to the technical field of PCB board processing, and in particular to a method for manufacturing a PTH square groove and a PCB board. Background Art

[0002] As printed circuit boards (PCBs) develop towards high frequencies and high speeds, their electromagnetic signals are increasing. To improve the electromagnetic compatibility (EMC) and electrical isolation of PCBs while meeting the heat dissipation requirements of PCBs, more and more plated-through-hole (PTH) slots are being designed on PCBs. PTH slots are a special type of slot design in PCBs, where PTH stands for Plated Through-Hole. Furthermore, the size of PTH slots is increasing, and the dimensional tolerance requirements are becoming increasingly higher and stricter.

[0003] Currently, the method for manufacturing PTH square grooves on PCB boards is to use a milling machine to make them. However, the length and width tolerances of the PTH square grooves made by this method can only reach a maximum of + / -3 mils, and cannot reach + / -2 mils, which makes it difficult to meet the high-precision tolerance requirements for PTH square grooves on PCB boards. Summary of the Invention

[0004] The purpose of this application is to provide a method for manufacturing a PTH square groove and a PCB board, wherein the length and width tolerance of the PTH square groove can reach + / - 2mil, which can meet the high-precision tolerance requirements of the PTH square groove on the PCB board, and can facilitate the production of high-precision PTH square grooves to better meet the heat dissipation requirements of the PCB board.

[0005] To achieve the above objectives, in a first aspect, the present application provides a method for manufacturing a PTH square groove, comprising:

[0006] Get the size of the PTH square groove to be made on the PCB board;

[0007] Determine the size of the drill bit used on the drilling equipment according to the size of the PTH square groove to be produced;

[0008] Decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the size of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves;

[0009] According to the sizes of the four drilling slots, the drill bit on the drilling device is controlled to drill holes at corresponding positions on the PCB board to obtain PTH square slots.

[0010] In a preferred embodiment of the present application, the dimensions of the PTH square groove to be manufactured include the fillet radius, length and width of the PTH square groove to be manufactured.

[0011] In a preferred embodiment of the present application, the size of the drill bit used in the drilling equipment is determined according to the size of the PTH square groove to be produced, including:

[0012] The size of the drill bit used in the drilling equipment is determined according to the fillet radius of the PTH square groove to be produced.

[0013] In a preferred embodiment of the present application, the diameter of the drill bit used in the drilling equipment is twice the radius of the fillet of the PTH square groove to be produced.

[0014] In a preferred embodiment of the present application, the method of decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the size of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves includes:

[0015] According to the size of the drill bit and the length and width of the PTH square groove to be manufactured, the PTH square groove to be manufactured is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined.

[0016] In a preferred embodiment of the present application, the method of decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the length and width of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves includes:

[0017] Compensating the length and width of the PTH square groove to be manufactured based on the thickness of the copper plating on the PCB board and the processing tolerances of the length and width of the PTH square groove to obtain a target length and target width of the PTH square groove to be manufactured;

[0018] According to the size of the drill bit and the target length and target width of the PTH square groove to be produced, the PTH square groove to be produced is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined.

[0019] In a preferred embodiment of the present application, the method of decomposing the PTH square groove to be produced into four drilling grooves according to the size of the drill bit and the target length and target width of the PTH square groove to be produced, and determining the sizes of the four drilling grooves includes:

[0020] Using the size of the drill bit and the target length of the PTH square groove to be manufactured as the length and width of the two drilling grooves, decomposing the PTH square groove to be manufactured to obtain two vertical or horizontal drilling grooves;

[0021] The size of the drill bit and the target width of the PTH square groove to be manufactured are used as the length and width of the other two drilling grooves, and the other two horizontal or vertical drilling grooves are decomposed on the PTH square groove to be manufactured.

[0022] In a preferred embodiment of the present application, the four drilling slots include two vertical drilling slots and two horizontal drilling slots;

[0023] According to the sizes of the four drilling slots, controlling the drill bit on the drilling device to drill holes at corresponding positions on the PCB board to obtain the PTH square slots includes:

[0024] According to the sizes of the two vertical drilling slots, controlling the drill bit on the drilling device to drill holes at corresponding positions on the PCB board to drill two vertical drilling slots;

[0025] According to the sizes of the two transverse drilling slots, the drill bit on the drilling device is controlled to drill holes at corresponding positions on the PCB board to obtain PTH square slots.

[0026] In a preferred embodiment of the present application, the method of controlling the drill bit on the drilling device to drill holes at corresponding positions on the PCB board according to the sizes of the four drilling slots to obtain a PTH square slot includes:

[0027] Determining the positions of the four drilling slots on the PTH square slot to be manufactured according to the sizes of the four drilling slots;

[0028] According to the sizes of the four drilling slots and the positions of the four drilling slots on the PTH square slot to be produced, the drill bit on the drilling equipment is controlled to drill holes at corresponding positions on the PCB board to obtain the PTH square slot.

[0029] In a second aspect, the present application provides a PCB board provided with a PTH square groove manufactured by the above-mentioned PTH square groove manufacturing method.

[0030] The present application discloses a method for manufacturing a PTH square groove and a PCB board, which, compared with the prior art, has at least the following beneficial effects:

[0031] The method for manufacturing a PTH square groove of the present application is suitable for manufacturing a PTH square groove on a PCB board, and is particularly suitable for manufacturing a large-sized PTH square groove on a PCB board. The method determines the size of a drill bit used in a drilling device according to the size of the PTH square groove to be manufactured on the PCB board. The drill bit of the determined size is used to machine the PTH square groove on the PCB board. Then, based on the size of the drill bit and the size of the PTH square groove to be manufactured, the PTH square groove to be manufactured is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined. Then, based on the sizes of the four drilling grooves, the drill bit on the drilling device is controlled to drill holes at corresponding positions on the PCB board to obtain the PTH square groove. The four drilling grooves are decomposed according to the square PTH square groove, ensuring that the drill bit is drilled according to the four sizes. After drilling the four drilling slots, a PTH square slot can be obtained; the sizes of the four drilling slots are determined according to the size of the drill bit and the size of the PTH square slot to be produced, which can ensure that after the drill bit drills according to the sizes of the four drilling slots, a PTH square slot with corresponding length and width dimensions can be obtained; in addition, the manufacturing method of the PTH square slot of the present application adopts a drilling method. Because the swing accuracy of the axis of the drilling equipment is less than 15μm, while the swing accuracy of the axis of the gong machine in the prior art is less than 25μm, the length and width tolerance of the manufactured PTH square slot can reach + / - 2mil, which can meet the high-precision tolerance requirements of the PTH square slot on the PCB board and facilitate the production of high-precision PTH square slots to better meet the heat dissipation requirements of the PCB board;

[0032] The PCB board of the present application is provided with a PTH square groove made by the above-mentioned PTH square groove manufacturing method. The length and width tolerance of the PTH square groove can reach + / - 2 mil, which can meet the high-precision tolerance requirements of the PTH square groove on the PCB board, so that the PCB board of the present application has better heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 1 is a flow chart of a method for manufacturing a PTH square groove provided in an embodiment of the present application;

[0035] Figure 2 Schematic diagram of the PTH square groove and four drilling slots provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0037] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0038] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0039] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or point connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] Furthermore, the terms "first," "second," and the like are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0041] See also Figure 1 and Figure 2 ,in, Figure 1 1 is a flow chart of a method for manufacturing a PTH square groove provided in an embodiment of the present application; Figure 2This is a schematic diagram of the PTH square groove and four drilling grooves provided in the embodiment of the present application. Figure 2 In the figure, the solid rectangular box represents the PTH square slot, and the four dotted rectangular boxes represent four drilling slots. The four drilling slots include two drilling slots distributed above and below the PTH square slot, and two drilling slots distributed left and right.

[0042] The method for manufacturing the PTH square groove of the embodiment of the present application includes the following steps:

[0043] S110, obtaining the dimensions of the PTH square groove to be manufactured on the PCB;

[0044] S120, determining the size of the drill bit used in the drilling equipment according to the size of the PTH square groove to be produced;

[0045] S130, decomposing the PTH square groove to be produced into four drilling grooves according to the size of the drill bit and the size of the PTH square groove to be produced, and determining the sizes of the four drilling grooves;

[0046] S140 , controlling a drill bit on a drilling device to drill holes at corresponding positions on the PCB board according to the sizes of the four drilling slots, thereby obtaining PTH square slots.

[0047] A PTH square slot is a special hole design in PCB boards. PTH stands for Plated Through-Hole. A PTH square slot is a square slot machined on a PCB board. Its shape can be similar to a square or a rectangle, and the inner wall of the slot is metallized (usually copper-plated) to achieve electrical connections or meet specific component installation requirements.

[0048] It can be understood that the PTH square groove to be manufactured on the PCB board can refer to a certain PTH square groove to be manufactured on the PCB board, and can also refer to multiple PTH square grooves to be manufactured on the PCB board. It should be noted that when the PTH square groove to be manufactured on the PCB board refers to multiple PTH square grooves to be manufactured on the PCB board, the drill bit used on the drilling equipment is not necessarily the only drill bit used. The drill bits used on the drilling equipment can be drill bits of multiple sizes. The sizes of the drill bits are determined according to the sizes of the PTH square groove to be manufactured, as described above. In the embodiment, the PTH square groove to be manufactured on the PCB board is used as a certain PTH square groove to be manufactured on the PCB board to expand, illustrate and explain the manufacturing method of the PTH square groove in the embodiment of the present application.

[0049] In this embodiment, the dimensions of the PTH square groove to be manufactured include the fillet radius, length, and width of the PTH square groove to be manufactured; a drill bit of a specific size is determined according to the dimensions of the PTH square groove to be manufactured, and is used to machine the corresponding PTH square groove on the PCB board;

[0050] Since the shape of the PTH square groove is similar to a square or a rectangle, the PTH square groove to be manufactured is decomposed into four drilling grooves, so that the PTH square groove similar to a square or a rectangle can be easily machined using a drill.

[0051] In this embodiment, when the drill bit on the drilling equipment is controlled to drill holes at corresponding positions on the PCB board according to the sizes of the four drilling slots, the drill bit can drill holes at corresponding positions on the PCB board in sequence according to the four drilling slots, thereby processing a PTH square slot.

[0052] The method for manufacturing a PTH square groove according to the embodiment of the present application is suitable for manufacturing a PTH square groove on a PCB board, and is particularly suitable for manufacturing a large-sized PTH square groove on a PCB board. The method determines the size of a drill bit used in a drilling device according to the size of the PTH square groove to be manufactured on the PCB board. The drill bit of the determined size is used to machine the PTH square groove on the PCB board. Then, according to the size of the drill bit and the size of the PTH square groove to be manufactured, the PTH square groove to be manufactured is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined. Then, according to the sizes of the four drilling grooves, the drill bit on the drilling device is controlled to drill holes at corresponding positions on the PCB board to obtain the PTH square grooves. Grooves; wherein, the four drilling slots are decomposed according to the square PTH square slot, ensuring that the PTH square slot can be obtained after the drill bit drills according to the four drilling slots; and the sizes of the four drilling slots are determined according to the size of the drill bit and the size of the PTH square slot to be produced, which can ensure that the PTH square slot with corresponding length and width sizes can be obtained after the drill bit drills according to the size of the four drilling slots; and, the manufacturing method of the PTH square slot of the present application adopts a drilling method, because the swing accuracy of the axis of the drilling equipment is less than 15um, and the swing accuracy of the axis of the gong machine in the prior art is less than 25um, the length and width size tolerance of the manufactured PTH square slot can reach + / - 2mi l, which can meet the high-precision tolerance requirements of the PTH square slot on the PCB board, and can facilitate the production of high-precision PTH square slots to better meet the heat dissipation requirements of the PCB board.

[0053] See also Figure 2 In one embodiment, when determining the size of the drill bit used in the drilling equipment according to the size of the PTH square groove to be produced, the following steps may be included:

[0054] The size of the drill bit used on the drilling equipment is determined based on the fillet radius of the PTH square groove to be produced.

[0055] Because the shape of the PTH square groove is similar to a square or rectangle, the four corners of the PTH square groove are rounded. The size of the drill bit used is determined based on the radius of the fillet of the PTH square groove to be manufactured. This can ensure that the accuracy of the fillet of the PTH square groove machined by the drill bit highly matches the predetermined fillet of the PTH square groove to be manufactured.

[0056] Preferably, the diameter of the drill bit used in the drilling equipment is twice the radius of the fillet of the PTH square groove to be produced. The setting of this parameter can ensure that the accuracy of the fillet of the PTH square groove processed by the drill bit completely matches the predetermined fillet of the PTH square groove to be produced, greatly reducing the processing error.

[0057] See also Figure 2 In one embodiment, when decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the size of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves, the following steps may be included:

[0058] According to the size of the drill bit and the length and width of the PTH square groove to be produced, the PTH square groove to be produced is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined.

[0059] The sizes of the four drilled slots are determined by the size of the drill bit and the length and width of the PTH square slot to be produced, so as to ensure that the length and width of the PTH square slot processed by the drill bit highly match the predetermined length and width of the PTH square slot to be produced.

[0060] In this embodiment, the process of decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the length and width of the PTH square groove to be manufactured and determining the sizes of the four drilling grooves may include:

[0061] Based on the copper plating thickness of the PCB board and the processing tolerances of the length and width of the PTH square groove, the length and width of the PTH square groove to be manufactured are compensated to obtain the target length and target width of the PTH square groove to be manufactured;

[0062] According to the size of the drill bit and the target length and target width of the PTH square groove to be produced, the PTH square groove to be produced is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined.

[0063] During PCB processing, the fabrication of the PTH square groove may be affected by the thickness of the copper plating on the PCB board and the processing tolerances of the length and width of the PTH square groove. Therefore, the length and width of the PTH square groove to be fabricated are compensated. The compensated data are used as the target length and target width of the PTH square groove to be fabricated. This can make the dimensions of the four drilled slots determined more accurately, and can better ensure that the length and width of the PTH square groove machined by the drill tool better match the predetermined length and width of the PTH square groove to be fabricated.

[0064] In this embodiment, decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the target length and target width of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves may include:

[0065] The size of the drill bit and the target length of the PTH square groove to be produced are used as the length and width of the two drilling grooves, and two vertical or horizontal drilling grooves are decomposed on the PTH square groove to be produced;

[0066] The size of the drill bit and the target width of the PTH square groove to be manufactured are used as the length and width of the other two drilling grooves, and the other two horizontal or vertical drilling grooves are decomposed on the PTH square groove to be manufactured.

[0067] It can be understood that the four drilling slots include two vertical drilling slots and two horizontal drilling slots; wherein the two vertical drilling slots are Figure 2 The two dotted lines in the middle PTH square groove represent the drilling slots, and the two horizontal drilling slots are Figure 2 The two dotted lines distributed above and below in the middle PTH square groove represent the drilling slots.

[0068] The following is a specific example to help you understand the above content. Figure 2 For example, assuming that the dimensions of the PTH square groove to be manufactured are: the fillet radius of the PTH square groove to be manufactured is 0.5mm, and the length and width of the PTH square groove to be manufactured are 2.9*2.311mm; then the diameter of the drill bit used in the drilling equipment is twice the fillet radius of the PTH square groove to be manufactured, that is, 1.0mm; and the processing tolerances of the copper plating thickness of the PCB board and the length and width of the PTH square groove are usually compensated according to fixed values. Among them, if the length and width of the PTH square groove to be manufactured are 2.9*2.311mm, the corresponding compensation is 4mil (0.1mm) and 5.5mil (0.15mm). Then, the target length and target width of the PTH square groove to be manufactured after compensation are 3.0*2.46mm; correspondingly, the dimensions of the four drilled slots are 3.0*1.0mm, 3.0*1.0mm, 1.0*2.46mm, and 1.0*2.46mm, respectively.

[0069] See also Figure 2 In one embodiment, the four drilling slots include two vertical drilling slots and two horizontal drilling slots;

[0070] According to the sizes of the four drilling slots, the drill bit on the drilling equipment is controlled to drill holes at corresponding positions on the PCB board to obtain the PTH square slot, which may include:

[0071] According to the sizes of the two vertical drilling slots, control the drill bit on the drilling equipment to drill holes at corresponding positions on the PCB board to drill two vertical drilling slots;

[0072] According to the sizes of the two horizontal drilling slots, the drill bit on the drilling equipment is controlled to drill holes at corresponding positions on the PCB board to obtain PTH square slots.

[0073] When drilling, first drill two vertical drilling slots, and then process two horizontal drilling slots. This can better ensure the stability of the PCB board during drilling, thereby reducing the error caused by the instability of the PCB board during drilling, and better ensure the accuracy of the processed PTH square slot.

[0074] In one embodiment, when a drill bit on a drilling device is controlled to drill holes at corresponding positions on a PCB board according to the sizes of four drilling slots to obtain a PTH square slot, the process may include:

[0075] According to the sizes of the four drilling slots, determine the positions of the four drilling slots on the PTH square slot to be manufactured;

[0076] According to the sizes of the four drilling slots and the positions of the four drilling slots on the PTH square slot to be produced, the drill bit on the drilling equipment is controlled to drill holes at the corresponding positions on the PCB board to obtain the PTH square slot.

[0077] It can be understood that after determining the positions of the four drilling slots on the PTH square slot to be produced, the drill bit on the drilling equipment can drill holes at the corresponding positions on the PCB board according to the four drilling slots to produce the PTH square slot.

[0078] The embodiment of the present application further provides a PCB board provided with a PTH square groove manufactured by the above-mentioned PTH square groove manufacturing method.

[0079] For the method of manufacturing the PTH square groove, please refer to the above content in the embodiments of this application for details, which will not be repeated here.

[0080] The PCB board of the embodiment of the present application is provided with a PTH square groove manufactured by the above-mentioned PTH square groove manufacturing method. The length and width tolerance of the PTH square groove can reach + / - 2 mil, which can meet the high-precision tolerance requirements of the PTH square groove on the PCB board, so that the PCB board of the present application has better heat dissipation performance.

[0081] In all the above embodiments, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expression of such relative terms will not be elaborated in the embodiments of this application.

[0082] It should be understood that expressions such as "in one embodiment", "in this embodiment", "in an embodiment of the present application", or "as an optional implementation method" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment", "in this embodiment", "in an embodiment of the present application", or "as an optional implementation method" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for this application.

[0083] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0084] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for manufacturing a PTH square groove, characterized in that: include: Get the size of the PTH square groove to be made on the PCB board; Determine the size of the drill bit used on the drilling equipment according to the size of the PTH square groove to be produced; Decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the size of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves; According to the sizes of the four drilling slots, the drill bit on the drilling device is controlled to drill holes at corresponding positions on the PCB board to obtain PTH square slots.

2. The method for manufacturing a PTH square groove according to claim 1, wherein: The dimensions of the PTH square groove to be manufactured include the fillet radius, length and width of the PTH square groove to be manufactured.

3. The method for manufacturing a PTH square groove according to claim 2, characterized in that: Determining the size of the drill bit used on the drilling equipment according to the size of the PTH square groove to be produced includes: The size of the drill bit used in the drilling equipment is determined according to the fillet radius of the PTH square groove to be produced.

4. The method for manufacturing a PTH square groove according to claim 3, wherein: The diameter of the drill bit used in the drilling equipment is twice the radius of the fillet of the PTH square groove to be produced.

5. The method for manufacturing a PTH square groove according to any one of claims 2 to 4, characterized in that: Decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the size of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves, includes: According to the size of the drill bit and the length and width of the PTH square groove to be manufactured, the PTH square groove to be manufactured is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined.

6. The method for manufacturing a PTH square groove according to claim 5, characterized in that: Decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the length and width of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves, includes: Compensating the length and width of the PTH square groove to be manufactured based on the thickness of the copper plating on the PCB board and the processing tolerances of the length and width of the PTH square groove to obtain a target length and target width of the PTH square groove to be manufactured; According to the size of the drill bit and the target length and target width of the PTH square groove to be produced, the PTH square groove to be produced is decomposed into four drilling grooves, and the sizes of the four drilling grooves are determined.

7. The method for manufacturing a PTH square groove according to claim 6, characterized in that: Decomposing the PTH square groove to be manufactured into four drilling grooves according to the size of the drill bit and the target length and target width of the PTH square groove to be manufactured, and determining the sizes of the four drilling grooves includes: Using the size of the drill bit and the target length of the PTH square groove to be manufactured as the length and width of the two drilling grooves, decomposing the PTH square groove to be manufactured to obtain two vertical or horizontal drilling grooves; The size of the drill bit and the target width of the PTH square groove to be manufactured are used as the length and width of the other two drilling grooves, and the other two horizontal or vertical drilling grooves are decomposed on the PTH square groove to be manufactured.

8. The method for manufacturing a PTH square groove according to claim 1, wherein: The four drilling slots include two vertical drilling slots and two horizontal drilling slots; According to the sizes of the four drilling slots, controlling the drill bit on the drilling device to drill holes at corresponding positions on the PCB board to obtain the PTH square slots includes: According to the sizes of the two vertical drilling slots, controlling the drill bit on the drilling device to drill holes at corresponding positions on the PCB board to drill two vertical drilling slots; According to the sizes of the two transverse drilling slots, the drill bit on the drilling device is controlled to drill holes at corresponding positions on the PCB board to obtain PTH square slots.

9. The method for manufacturing a PTH square groove according to claim 1, wherein: According to the sizes of the four drilling slots, controlling the drill bit on the drilling device to drill holes at corresponding positions on the PCB board to obtain the PTH square slots includes: Determining the positions of the four drilling slots on the PTH square slot to be manufactured according to the sizes of the four drilling slots; According to the sizes of the four drilling slots and the positions of the four drilling slots on the PTH square slot to be produced, the drill bit on the drilling equipment is controlled to drill holes at corresponding positions on the PCB board to obtain the PTH square slot.

10. A PCB board, characterized in that: A PTH square groove is provided which is manufactured by the method for manufacturing a PTH square groove according to any one of claims 1 to 9.

Images