Method for opening a cylindrical packaged quartz crystal element

Abstract

The application discloses a method for opening a cylindrical package of a quartz crystal element, which comprises the following steps: clamping the bottom of the cylindrical package of the quartz crystal element with diagonal pliers in a direction perpendicular to the cylinder axis, the two blades of the diagonal pliers being tangent to the cylinder wall, and keeping the plane alpha formed by the tangent lines of the two blades being perpendicular to the cylinder axis; stopping after applying a static pressure to close the blades; keeping the two blades in contact with the cylinder wall, rotating the cylinder wall around the cylinder axis by an angle in one direction, and applying a static pressure to close the blades; repeating the above steps until the intersection circumference of the cylinder wall and the plane alpha is cut through, and the opening is completed. The application provides a safe and effective method for opening the cylindrical package of the quartz crystal element, and eliminates the risks of the element being separated from the clamp, the force direction being skewed, the opening process being out of control, the shell being abnormally deformed to squeeze and damage the internal structure of the element, and the internal crystal being damaged by vibration.

Description

Technical Field

[0001] This invention relates to the fields of destructive physical analysis, structural analysis, and failure analysis of electronic components, and particularly to a method for opening a cylindrical packaged quartz crystal element. Background Technology

[0002] Unpacking is a crucial step in destructive physical analysis, structural analysis, and failure analysis; the quality of unpacking directly affects the accuracy of subsequent tests and even the conclusions of the entire batch analysis. Among the objects requiring unpacking, cylindrically packaged quartz crystal elements possess unique characteristics:

[0003] 1. As a slender cylindrical package, the unbalance between the load-bearing area of ​​the cut and the reinforcement area of ​​the body during opening can easily cause the opening process to go out of control. This can easily cause the component to detach from the fixture, the load-bearing direction to be skewed, and the shell to deform abnormally during opening. Abnormal shell deformation not only makes opening more difficult, but can also squeeze and damage the crystal inside the component, causing the opening to fail prematurely.

[0004] 2. Because the diameter of the cylindrical packaged quartz crystal element is only 1-2 mm, and the slender crystal inside is close to the cylinder wall, there is no buffer space for bearing the force during the opening process. As a brittle and thin crystal that is sensitive to external vibration, it is easily damaged by mechanical vibration during the opening process.

[0005] Traditional static pressure cutting methods result in uneven stress accumulation on the cylindrical casing, easily causing abnormal deformation. This not only makes opening more difficult but can also damage the internal crystal. Traditional blade-tapping methods can easily cause the component to detach from the clamps during opening, leading to skewed force direction, uncontrolled opening process, and potential damage to the internal crystal. This poses a serious threat to destructive physical analysis, structural analysis, and failure analysis, directly undermining the foundation of the analysis. Therefore, it is necessary to design a new method for opening cylindrically packaged quartz crystal components. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a safe and effective method for opening cylindrical packaged quartz crystal components, eliminating risks such as components detaching from the clamps during opening, skewed force direction, uncontrolled opening process, abnormal deformation of the shell causing damage to the internal structure of the component, and damage to the internal crystal.

[0007] To achieve the above objectives, the method for opening a cylindrical packaged quartz crystal element provided by the present invention includes the following steps:

[0008] Step 1: Clamp the bottom of the cylindrical package of the quartz crystal element with diagonal pliers in a direction perpendicular to the cylinder axis. The two blades of the diagonal pliers are tangent to the cylinder wall, and the plane α formed by the tangents of the two blades is perpendicular to the cylinder axis.

[0009] Step 2: Apply static pressure to the two blades and then stop.

[0010] Step 3: Keep the two blades in contact with the cylinder wall, rotate the cylinder wall around the cylinder axis in one direction by an angle, and repeat Step 2 until the entire circumference of the intersection between the cylinder wall and plane α is cut, thus completing the opening.

[0011] Furthermore, the bottom to top of the quartz crystal element package is divided into eight equal parts, such that the plane α is located between the circumference C at the junction of the convex ring at the bottom of the quartz crystal element package and the cylindrical wall, and the equal part mark closest to C.

[0012] Furthermore, in step 2, a static pressure of 0.8N to 1.2N is applied to the two blades to close the blade.

[0013] Furthermore, in step 3, the angle of unidirectional rotation of the cylinder wall around the cylinder axis is less than 15°.

[0014] Furthermore, it also includes: after fixing the convex ring at the bottom of the quartz crystal element package, using diagonal pliers to clamp the top of the cylindrical package and pull it away along the cylindrical axis to expose the internal structure and complete the unpacking.

[0015] This invention provides a safe and effective method for opening cylindrical packaged quartz crystal components. Targeting the characteristics of the cylindrical shape, a diagonal clamp rolling opening method is used to integrate and balance the clamping and cutting operations of the sample, resolving the contradiction of difficulty in fixing the cylindrical package during the opening process. By continuously increasing the number of sides of the circumferentially tangent polygon to approach the limit of the circumference, time is used to exchange for space, achieving the purpose of uniformly applying cutting force in all directions around the boundary circumference and avoiding the accumulation of uneven force over time.

[0016] This invention overcomes the shortcomings of the prior art and provides a safe and effective method for opening cylindrical packaged quartz crystal components. It eliminates risks such as components detaching from the fixture during opening, skewed force direction, uncontrolled opening process, abnormal deformation of the shell damaging the internal structure of the component, and vibration damaging the internal crystal. It ensures the smooth progress of destructive physical analysis, structural analysis, and failure analysis, and increases the opening speed by 960%, achieving "fast, good, and safe" opening. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are provided to further illustrate embodiments of the invention and, together with the textual description, explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1A flowchart illustrating an unpacking method for a cylindrically packaged quartz crystal element according to a specific embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram showing the division markings of a cylindrical packaged quartz crystal element is shown.

[0020] Figure 3 The diagram shows the opening effect provided by a specific embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal support assembly and solder joint morphology of the component after opening the package using the present invention;

[0022] Figure 5 This is a schematic diagram of the internal crystal morphology of the component after it has been opened using the present invention. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] As an embodiment of the present invention, taking the EPSON HTS-206 cylindrical packaged quartz crystal element as an example, such as... Figure 1 As shown, the method for opening the cylindrical packaged quartz crystal element includes the following steps:

[0025] Step S01: Use a tool with a sensor to hold diagonal pliers or hold diagonal pliers by hand to clamp the bottom of the cylindrical package of the component in a direction perpendicular to the cylinder axis. The two blades of the diagonal pliers are tangent to the cylinder wall, and the plane α formed by the tangents of the two blades is perpendicular to the cylinder axis.

[0026] Step S02: Divide the bottom surface of the component package into eight equal parts, such that plane α is located between the circumference C at the junction of the outer convex ring at the bottom of the component package and the cylindrical wall, and the equal part mark closest to C.

[0027] Figure 2 The single arrow points to the position of circumference C, where the convex ring at the bottom of the component package intersects with the cylindrical wall. Star 1 and rhombuses 2, 3, and 4 represent eight equal division points. The division point closest to C is 3, meaning plane α lies between the double and single arrows. Figure 3 , Figure 4 The double arrow and the single arrow are... Figure 2 Double arrows and single arrows.

[0028] For cylindrical quartz crystal components, based on long-term experimental measurements, this interval (between the circumference C at the junction of the bottom convex ring and the cylinder wall, and the equidistant mark closest to C) lies between the top surface of the abutment (which can be considered a short, stout cylinder) where the crystal is soldered inside the component and the bottom convex ring of the component package. This ensures that when the blade cuts the shell, the shell is supported by the abutment underneath, preventing the blade from pulling on other areas of the shell due to the solid elastic modulus and causing deformation, which could lead to the compression of the internal crystal and the process structure. If the plane α formed by the two blade tangents is located below this interval, the cutting stress will act on the bottom convex ring of the component package instead of cutting the cylinder wall portion, making it impossible to open the package. If the plane 'a' formed by the two cutting edges is located above this range, the internal crystal root welding process structure will be placed on the plane of cutting stress, posing a risk of damage to the internal process structure. This essentially undermines the basis for subsequent analysis after opening the package. It also results in the shell lacking a base support when the blade cuts the internal shell, causing other areas of the shell to deform due to the solid elastic modulus, compressing the internal crystal and process structure, leading to opening failure. In practice, while meeting this range, the blade should be placed as close as possible to the circumference C where the bottom convex ring of the component package intersects with the cylinder wall.

[0029] Step S03: Apply a static pressure of 0.8N to 1.2N to the closed blades using a tool with a sensor or by hand, and stop after 1 second;

[0030] Step S04: While keeping the blade in contact with the package without squeezing, rotate the cylinder wall around the cylinder axis in one direction by an angle of less than 15° and as small as possible, and repeat step S03.

[0031] Step S05: Repeat step S04 until the entire circumference of the intersection between the cylinder wall and plane α is cut. After fixing the bottom convex ring of the component package, use diagonal pliers to clamp the top of the cylindrical package and pull it away along the cylinder axis to expose the internal structure and complete the opening.

[0032] Figure 3 The diagram provided is an opening effect diagram according to a specific embodiment of the present invention, showing that by applying the opening method of the present invention, risks such as components detaching from the clamps, skewed force direction, loss of control during the opening process, abnormal deformation of the shell extruding and damaging the internal crystals of the components, and vibration damage to the internal crystals are eliminated. Figure 4 The present invention describes the morphology of the internal support assembly and solder joints of the component after unpacking, thus protecting the internal support assembly and solder joints of the component completely during unpacking. Figure 5 The present invention describes the internal crystal morphology of the component after unpacking, thus perfectly protecting the internal crystal of the component at the same time as unpacking.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for opening a cylindrically packaged quartz crystal element, characterized in that, The method includes the following steps: Step 1: Clamp the bottom of the cylindrical package of the quartz crystal element with diagonal pliers in a direction perpendicular to the cylinder axis. The two blades of the diagonal pliers are tangent to the cylinder wall, and the plane α formed by the tangents of the two blades is perpendicular to the cylinder axis. Step 2: Apply static pressure to the two blades and then stop. Step 3: Keep the two blades in contact with the cylinder wall, rotate the cylinder wall around the cylinder axis in one direction by an angle, and repeat Step 2 until the entire circumference of the intersection between the cylinder wall and plane α is cut, thus completing the opening.

2. The method for opening the cylindrical packaged quartz crystal element according to claim 1, characterized in that, Divide the bottom surface of the quartz crystal element package into eight equal parts, such that the plane α lies between the circumference C at the junction of the convex ring at the bottom of the quartz crystal element package and the cylindrical wall, and the equal part mark closest to C.

3. The method for opening the cylindrical packaged quartz crystal element according to claim 1 or 2, characterized in that, In step 2, a static pressure of 0.8N to 1.2N is applied to the two blades to close the blade.

4. The method for opening the cylindrical packaged quartz crystal element according to claim 3, characterized in that, In step 3, the angle of unidirectional rotation of the cylinder wall around the cylinder axis is less than 15°.

5. The method for opening the cylindrical packaged quartz crystal element according to claim 4, characterized in that, Step 2 involves applying static pressure to the two blades for 1 second to close the blades, after which the process stops.

6. The method for opening the cylindrical packaged quartz crystal element according to claim 1, characterized in that, Also includes: After fixing the convex ring at the bottom of the quartz crystal element package, use diagonal pliers to clamp the top of the cylindrical package and pull it away along the cylindrical axis to expose the internal structure, thus completing the unpacking.

7. The method for opening the cylindrical packaged quartz crystal element according to claim 1, characterized in that, Hold the diagonal pliers with a sensor or by hand.

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