Etching machine frequency modulation test tool

Abstract

The utility model relates to the technical field of quartz crystal electronic component manufacturing, in particular to an etching machine frequency modulation test tool, which comprises a PCB (printed circuit board), a double-end test probe, an upper-layer probe board, a lower-layer probe board and a probe board fixing seat, when the etching machine frequency modulation test tool is used, the upper-layer probe board and the lower-layer probe board are respectively arranged on the upper side and the lower side of the probe board fixing seat through bolts; then the double-end test probe penetrates through the first probe hole in the upper-layer probe plate, reaches the second probe hole in the lower-layer probe plate and extends out of the needle point, and the position condition of the needle point of the double-end test probe can be directly observed from the upper part of the frequency modulation test tool of the etching machine through a naked eye observation method; therefore, the contact position of the double-end test probe and the PIN on the PCB can be quickly and accurately aligned.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing quartz crystal electronic components, in particular to an etching machine frequency modulation test tooling. Background Technique

[0002] A quartz crystal is a high-precision and high-stability frequency component made by using the piezoelectric effect of a quartz wafer, and is widely used in various fields such as communication, automotive, computer, television, and security. There are many main processes in quartz crystal manufacturing, and the function of each process is crucial. Among them, the frequency modulation process determines whether the frequency, the most basic and important electrical parameter of the quartz crystal, can meet the accuracy requirements.

[0003] Currently, the frequency modulation process mainly uses the principle of ion etching, and cooperates with a network analyzer to perform frequency modulation while measuring, so as to meet the requirements of precise frequency modulation. Among them, ion etching is completed by an ion gun, and in addition to professional instruments, corresponding tooling is also required for measurement. The probes used in the currently used frequency measurement tooling are relatively thick and the spacing is relatively large, which is feasible for products with large sizes and few PIN feet currently. However, with the rapid development of the quartz crystal oscillator industry, various new models of products have emerged, and modern electronic products have higher and higher requirements for quartz crystal oscillators, including miniaturization and an increase in the number of new function PIN feet.

[0004] For products with miniaturization and an increase in the number of new function PIN feet, the existing frequency measurement tooling cannot meet the requirements of probe layout due to the overly thick probes, and thinner probes need to be replaced to meet the requirements; at the same time, the probe holes on the existing frequency measurement tooling are relatively deep, which can be processed by the processing factory for thick probe holes. However, after using thin probes, it is impossible to process thin probe holes with the same depth on the existing frequency measurement tooling, and there are processing difficulties and requirements for the depth of thin probe holes in the processing factory; at the same time, the miniaturization of products and the increase in PIN feet will cause the PIN feet to become smaller, and it is very difficult for the existing frequency measurement tooling to align the position where the probe tip contacts the PIN feet. Therefore, for products with miniaturization and a large number of PIN feet, new tooling needs to be designed to meet the requirements of frequency modulation. Content of the Utility Model

[0005] The purpose of the utility model is to provide an etching machine frequency modulation test tooling, which solves the problem that it is very difficult for the existing frequency measurement tooling to align the position where the probe tip contacts the PIN feet, and new tooling needs to be designed to meet the requirements of frequency modulation.

[0006] To achieve the above object, the utility model provides an etching machine frequency modulation test tooling, which includes a PCB board, a double - headed test probe, an upper probe board, a lower probe board and a probe board fixing seat. The PCB board is fixedly connected to the probe board fixing seat and is located on one side of the probe board fixing seat. The upper probe board is fixedly connected to the probe board fixing seat and is located between the probe board fixing seat and the PCB board. The lower probe board is fixedly connected to the probe board fixing seat and is located on the side of the probe board fixing seat away from the upper probe board. The lower probe board has a first probe hole, and the upper probe board has a second probe hole. The double - headed test probe passes through the second probe hole and the first probe hole and abuts against the PCB board.

[0007] Wherein, the probe board fixing seat has a through - hole, and the through - hole is arranged on the probe board fixing seat and penetrates through the probe board fixing seat.

[0008] Wherein, the upper probe board has a positioning hole which penetrates through the upper probe board; the probe board fixing seat has a first positioning pin, and the first positioning pin is arranged on the probe board fixing seat and is located on the side of the probe board fixing seat close to the upper probe board. The first positioning pin cooperates with the positioning hole.

[0009] Wherein, the probe board fixing seat further has a second positioning pin, and the second positioning pin is fixedly connected to the probe board fixing seat and is located on the side of the probe board fixing seat close to the PCB board.

[0010] Wherein, the probe board fixing seat further has a second threaded hole, and the second threaded hole is arranged on the side of the probe board fixing seat close to the PCB board; the PCB board has a mounting hole which penetrates through the PCB board, and the mounting hole cooperates with the second threaded hole.

[0011] A frequency modulation test tooling for an etching machine of the present utility model, during use, the upper probe board and the lower probe board are respectively installed on the upper and lower sides of the probe board fixing seat through bolts, and then the double-headed test probe passes through the first probe hole on the upper probe board, reaches the second probe hole on the lower probe board and extends the tip of the needle. By directly observing with the naked eye, the position of the tip of the double-headed test probe can be observed from above the frequency modulation test tooling of the etching machine, and thus the contact position between the double-headed test probe and the PIN pins on the PCB board can be quickly and accurately aligned, improving the working efficiency and accuracy of position alignment, and also improving the test accuracy, laying a foundation for precise frequency modulation; one end of the double-headed test probe protruding from the upper probe board is in close contact with the PCB board to form a circuit, thus realizing the miniaturization of the frequency modulation process and the test function during the frequency modulation of products with a large number of new function PIN pins. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of the frequency modulation test tooling for an etching machine according to the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the installation structure of the through hole according to the first embodiment of the present utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the first probe hole according to the first embodiment of the present utility model.

[0016] Figure 4 It is a schematic diagram of the structure of the second probe hole according to the first embodiment of the present utility model.

[0017] Figure 5 It is a schematic diagram of the structure of the second positioning pin according to the first embodiment of the present utility model.

[0018] Figure 6 It is a schematic diagram of the structure of the mounting hole according to the first embodiment of the present utility model.

[0019] Figure 7 It is according to the first embodiment of the present utility model Figure 6 Enlarged view of part A.

[0020] In the figure: 101 - PCB board, 102 - double - headed test probe, 103 - upper probe board, 104 - lower probe board, 105 - probe board fixing seat, 106 - first probe hole, 107 - second probe hole, 108 - through - hole, 109 - positioning hole, 110 - first positioning pin, 111 - first threaded hole, 112 - screw installation stepped hole, 113 - second positioning pin, 114 - second threaded hole, 115 - installation hole, 116 - PIN foot. Detailed implementation mode

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0022] Please refer to Figures 1 to 7 , in which Figure 1 is the overall structural schematic diagram of the frequency - modulation test tooling of the etching machine, Figure 2 is the installation structural schematic diagram of the through - hole, Figure 3 is the structural schematic diagram of the first probe hole, Figure 4 is the structural schematic diagram of the second probe hole, Figure 5 is the structural schematic diagram of the second positioning pin, Figure 6 is the structural schematic diagram of the installation hole, Figure 7 is Figure 6 the enlarged view at A of

[0023] The present utility model provides a frequency - modulation test tooling for an etching machine, including a PCB board 101, a double - headed test probe 102, an upper probe board 103, a lower probe board 104, and a probe board fixing seat 105. The probe board fixing seat 105 has a through - hole 108, the upper probe board 103 has a positioning hole 109, the probe board fixing seat 105 has a first positioning pin 110 and a second positioning pin 113, the probe board fixing seat 105 also has a second threaded hole 114, the PCB board 101 has an installation hole 115. By installing a plurality of the double - headed test probes 102 through the first probe holes 106 and the second probe holes 107 on the upper probe board 103 and the lower probe board 104, not only the position of the double - headed test probe 102 can be conveniently observed, but also the position of the double - headed test probe 102 can be adjusted to meet the requirements of frequency modulation. It can be understood that the foregoing scheme can be used for frequency - modulation testing of products with miniaturization and a large number of PIN feet, and can also be used for stably installing the PCB board 101 on the probe board fixing seat 105.

[0024] For this specific embodiment, the PCB board 101 is fixedly connected to the probe board fixing seat 105 and is located on one side of the probe board fixing seat 105. The upper probe board 103 is fixedly connected to the probe board fixing seat 105 and is located between the probe board fixing seat 105 and the PCB board 101. The lower probe board 104 is fixedly connected to the probe board fixing seat 105 and is located on the side of the probe board fixing seat 105 away from the upper probe board 103. The lower probe board 104 has first probe holes 106, and the upper probe board 103 has second probe holes 107. The double-headed test probe 102 passes through the second probe holes 107 and the first probe holes 106 and abuts against the PCB board 101. A plurality of the first probe holes 106 and the second probe holes 107 are provided. The double-headed test probe 102 can pass through the first probe holes 106 and the second probe holes 107. PIN pins 116 are provided on the PCB board 101. The upper probe board 103 and the lower probe board 104 are made of transparent acrylic plates with a thickness of no more than 3 mm. After the upper and lower probe boards are installed on the probe board fixing seat 105, the first probe holes 106 and the second probe holes 107 correspond to each other one by one and are coaxial, and the lower part of the lower probe board 104 can be clearly seen through the upper part of the upper probe board 103. The probe board fixing seat 105 is made of aluminum alloy material and is subjected to surface hard anodizing treatment, providing sufficient strength and wear resistance for the whole set of tooling. During use, the upper probe board 103 and the lower probe board 104 are respectively installed on the upper and lower sides of the probe board fixing seat 105 through bolts. Then, after the double-headed test probe 102 passes through the first probe holes 106 on the upper probe board 103, reaches the second probe holes 107 on the lower probe board 104 and extends out the tip of the needle, the position of the tip of the double-headed test probe 102 can be directly observed by the naked eye from above the etching machine frequency modulation test tooling, so that the contact position between the double-headed test probe 102 and the PIN pins 116 on the PCB board 101 can be quickly and accurately aligned, improving the working efficiency and accuracy of position alignment, and also improving the test accuracy, laying a foundation for accurate frequency modulation. The end of the double-headed test probe 102 protruding from the upper probe board 103 is in close contact with the PCB board 101 to form a circuit, thus realizing the miniaturization of the frequency modulation process and the test function during the frequency modulation of products with a large number of new function PIN pins 116.

[0025] Among them, the through hole 108 is provided on the probe board fixing base 105 and penetrates through the probe board fixing base 105. The position and shape of the through hole 108 are matched with the positions and shapes of the plurality of first probe holes 106 and the second probe holes 107, so that the double-headed test probe 102 can pass through the through hole 108 and penetrate through the probe board fixing base 105.

[0026] Secondly, the positioning hole 109 penetrates through the upper probe board 103; the first positioning pin 110 is provided on the probe board fixing base 105 and is located on the side of the probe board fixing base 105 close to the upper probe board 103. The first positioning pin 110 is matched with the positioning hole 109; four first positioning pins 110 are provided and are arranged in two groups on the upper and lower sides of the probe board fixing base 105. A first threaded hole 111 is further provided on the probe board fixing base 105, and a screw installation step hole 112 is further provided on the upper probe board 103. The structure of the lower probe board 104 is the same as that of the upper probe board 103; when installing the upper probe board 103, align the positioning hole 109 with the first positioning pin 110 and make the first positioning pin 110 pass through the positioning hole 109. At this time, the position of the upper probe board 103 is positioned, and then a bolt is passed through the screw installation step hole 112 and connected to the first threaded hole 111, so as to install the upper probe board 103 on the probe board fixing base 105. The screw head of the selected bolt shall not protrude from the upper surface of the upper probe board 103 after installation. The installation method of the lower probe board 104 is the same as that of the upper probe board 103 and will not be elaborated here.

[0027] Meanwhile, the second positioning pin 113 is fixedly connected to the probe board fixing base 105 and is located on the side of the probe board fixing base 105 close to the PCB board 101; holes matching the second positioning pin 113 are provided on the PCB board 101. The number and position of the second positioning pins 113 are set according to the holes on the PCB board 101, and the specific positions and numbers are not limited. By making the second positioning pin 113 pass through the holes on the PCB board 101, the PCB board 101 is positioned.

[0028] In addition, a second threaded hole 114 is provided on the side of the probe board fixing base 105 close to the PCB board 101; the installation hole 115 penetrates through the PCB board 101, and the installation hole 115 is matched with the second threaded hole 114; after the PCB board 101 is positioned by the second positioning pin 113, a screw is passed through the installation hole 115 and connected to the second threaded hole 114, so as to stably install the PCB board 101 on the probe board fixing base 105.

[0029] When using the etching machine frequency modulation test tooling of this embodiment, the probe board fixing seat 105 is made of aluminum alloy material and undergoes surface hard anodizing treatment, providing sufficient strength and wear resistance for the entire set of tooling; the upper probe board 103 and the lower probe board 104 are made of transparent acrylic board material, having good insulation and sufficient transparency; when using the etching machine frequency modulation test tooling, the double-headed test probe 102 passes through the first probe hole 106 on the upper probe board 103, passes through the hollow structure of the probe board fixing seat 105, reaches and passes through the second probe hole 107 on the lower probe board 104, and after the probe tip extends out, the position of the tip of the double-headed test probe 102 can be directly observed from above the frequency modulation test tooling by the naked eye, quickly and accurately aligning the contact position between the double-headed test probe 102 and the workpiece PIN foot 116, improving the working efficiency and accuracy of position alignment, and also improving the test accuracy, laying a foundation for precise frequency modulation.

[0030] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand the entire or partial processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A frequency modulation test tool for an etching machine, characterized in that: It includes a PCB board, a double-headed test probe, an upper probe board, a lower probe board and a probe board fixing seat, the PCB board is fixedly connected to the probe board fixing seat and is located on one side of the probe board fixing seat, the upper probe board is fixedly connected to the probe board fixing seat and is located between the probe board fixing seat and the PCB board, the lower probe board is fixedly connected to the probe board fixing seat and is located on a side of the probe board fixing seat away from the upper probe board, the lower probe board has a first probe hole, the upper probe board has a second probe hole, and the double-headed test probe passes through the second probe hole and the first probe hole to abut against the PCB board.

2. The frequency modulation test tool for etching machine according to claim 1, characterized in that: The probe card fixing seat has a through hole, and the through hole is arranged on the probe card fixing seat and passes through the probe card fixing seat.

3. The frequency modulation test tool for etching machine according to claim 1, characterized in that: The upper probe board has a positioning hole, which passes through the upper probe board; the probe board fixing seat has a first positioning pin, which is arranged on the probe board fixing seat and is located on a side of the probe board fixing seat close to the upper probe board, and the first positioning pin cooperates with the positioning hole.

4. The frequency modulation test tool for etching machine according to claim 1, characterized in that: The probe card fixing seat also has a second positioning pin, which is fixedly connected to the probe card fixing seat and is located at a side of the probe card fixing seat close to the PCB board.

5. The frequency modulation test tool for etching machine as claimed in claim 4, characterized in that: The probe board fixing seat also has a second threaded hole, which is arranged on a side of the probe board fixing seat close to the PCB board; the PCB board has a mounting hole, which passes through the PCB board, and the mounting hole cooperates with the second threaded hole.

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