Integrated circuit stacked capacitor

Abstract

The utility model discloses an integrated circuit stack capacitor, comprising a ceramic dielectric main body, two sides of the ceramic dielectric main body are respectively fixedly connected with a copper outer electrode, one side of the copper outer electrode is welded with three groups of copper inner electrode slices, the copper inner electrode slices are wrapped by a nickel barrier layer, and the nickel barrier layer is wrapped by a metal layer. The nickel barrier layer is sleeved with a terminal sleeve, and the bottom end of the terminal sleeve is provided with a dismounting assembly which is convenient for replacing pins. The integrated circuit stacked capacitor is provided with the pin leading-out head, the internal thread connecting cavity and the external pins, when the integrated circuit stacked capacitor is used and a single external pin is damaged, the damaged external pin is clamped by a clamp and rotated, the damaged external pin is screwed out from the internal thread connecting cavity at the bottom of the pin leading-out head, and a new external pin is screwed in again, so that compared with integral replacement, the integrated circuit stacked capacitor has the advantages that the replacement efficiency is greatly improved, and the replacement cost is reduced. The cost of replacing the external pins is lower, the function of replacing the pins is achieved, and the problem that the device does not have the function of replacing the pins is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to an integrated circuit stacked capacitor. Background Art

[0002] Capacitors are components that store electricity and energy. They are one of the most common component accessories in integrated circuits. Currently, there are two main forms of capacitors used in circuits, namely wound aluminum electrolytic capacitors and stacked multilayer ceramic capacitors.

[0003] The common integrated circuit stacked capacitors on the market are mostly similar in structure. They are mainly made of ceramic sintered dielectrics, with multiple sets of copper inner electrodes interspersed and stacked inside. One end of the inner electrode has an outer electrode, which is connected to the circuit board through the pins at the end of the terminal. There are some functional deficiencies in actual use and there is room for improvement. For example, the pins of the capacitor are generally integrated with the terminals. During the welding process, if a single pin is damaged, the entire capacitor must be replaced directly. The cost is relatively high and there is room for further reduction. The pins are not removable.

[0004] Now, a new type of integrated circuit stacked capacitor is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an integrated circuit stacked capacitor to solve the problem of the lack of pin-replaceable function proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated circuit stacked capacitor, comprising a ceramic dielectric body, copper outer electrodes are fixedly connected to both sides of the ceramic dielectric body, three groups of copper inner electrode sheets are welded to one side of the copper outer electrode, the outside of the copper inner electrode sheet is coated with a nickel barrier layer, the outside of the nickel barrier layer is sleeved with a terminal sleeve, the outside of the ceramic dielectric body and the terminal sleeve is coated with an inner protective layer, the outside of the inner protective layer is provided with an outer protective layer, and the bottom of the terminal sleeve is provided with a disassembly assembly component for facilitating the replacement of pins.

[0007] The disassembly and assembly component includes a pin lead-out head, which is fixedly connected to one side of the bottom of the terminal sleeve, an internal thread connection cavity is arranged inside the pin lead-out head, and an external pin is plugged into the bottom end of the pin lead-out head from bottom to top.

[0008] Preferably, the terminal sleeve and the pin lead-out header are made of the same material, and the pin lead-out header is symmetrically distributed about a vertical center line of the ceramic dielectric body.

[0009] Preferably, the bottom end of the pin lead-out connector penetrates the interior of the inner protective layer and the outer protective layer and extends to the outside, and the inner protective layer, the outer protective layer and the outer wall of the pin lead-out connector fit tightly without any gap.

[0010] Preferably, the outer diameter of the external pin is the same as the inner diameter of the internal thread connection cavity, and the threads outside the external pin match the threads inside the internal thread connection cavity.

[0011] Preferably, a fluorescent paint layer is filled between the outside of the inner protective layer and the inner wall of the outer protective layer, and the thickness of the fluorescent paint layer and the outer protective layer are the same.

[0012] Preferably, the rear end of the outer protective layer is coated with a self-adhesive sticker, the rear end of the self-adhesive sticker is applied with a release paper, and a tear head is provided on one side of the top of the release paper.

[0013] Preferably, the self-adhesive sticker and the release paper have the same size, and the release paper completely covers the surface of the self-adhesive sticker.

[0014] Preferably, there is a distance between the front end of the tearing head and the rear end of the outer protective layer, and the outer protective layer and the tearing head are not connected.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the integrated circuit stacked capacitor not only realizes the function of detachable pins, but also realizes the function of easy inspection of surface cracks, and also realizes the function of bonding and reinforcement;

[0016] (1) By providing a pin lead-out head, an internal thread connection cavity and an external pin, when in use, the ceramic dielectric body serves as the dielectric body of the capacitor, the copper internal electrode sheet inside the ceramic dielectric body forms a stacked structure, and the external pin is connected to the integrated circuit board by soldering. When a single external pin is damaged, the damaged external pin is clamped with pliers and rotated to screw it out of the internal thread connection cavity at the bottom of the pin lead-out head, and a new external pin is taken out and screwed back in. Compared with replacing the entire pin, the cost of replacing a single external pin is lower, and the function of detachable pins is realized;

[0017] (2) By providing an inner protective layer, a fluorescent coating layer and an outer protective layer, when in use, the inner protective layer and the outer protective layer can form a protective layer on the outside of the capacitor to prevent leakage, friction and other problems. There is a layer of fluorescent coating between the inner protective layer and the outer protective layer. When the outer protective layer cracks, the location of the crack and whether the inner protective layer has cracks can be determined by irradiating it with a purple light and based on the reflection of the fluorescent coating layer, the function of easily checking surface cracks can be realized;

[0018] (3) By providing the adhesive tape, release paper and tear-off head, when in use, as the external pins of the capacitor are soldered to the circuit board, the external pins are bent to make the back of the capacitor fit the circuit board, the tear-off head is pinched to tear off the release paper, and the adhesive side is pressed against the circuit board to form a bond, which can increase the stability of the capacitor installation, share the stress at the external pins, and achieve the function of bonding reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a pin lead-out header of the utility model;

[0021] Figure 3 For the utility model Figure 1 A partial cross-section at the center is an enlarged structural diagram;

[0022] Figure 4 It is a rear view structural schematic diagram of the utility model.

[0023] In the figure: 1. Ceramic dielectric body; 2. Copper outer electrode; 3. Copper inner electrode sheet; 4. Nickel barrier layer; 5. Terminal sleeve; 6. Pin lead; 7. Internal thread connection cavity; 8. External pin; 9. Inner protective layer; 10. Fluorescent coating layer; 11. Outer protective layer; 12. Self-adhesive label; 13. Release paper; 14. Tear-off head. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 , an integrated circuit stacked capacitor, comprising a ceramic dielectric body 1, copper outer electrodes 2 are fixedly connected to both sides of the ceramic dielectric body 1, three groups of copper inner electrode sheets 3 are welded to one side of the copper outer electrode 2, the outer part of the copper inner electrode sheet 3 is coated with a nickel barrier layer 4, the outer part of the nickel barrier layer 4 is sleeved with a terminal sleeve 5, the outer part of the ceramic dielectric body 1 and the terminal sleeve 5 is coated with an inner protective layer 9, the outer part of the inner protective layer 9 is provided with an outer protective layer 11, and the bottom end of the terminal sleeve 5 is provided with a disassembly assembly component for facilitating the replacement of pins;

[0026] See also Figure 1-4An integrated circuit stacked capacitor also includes a disassembly assembly, the disassembly assembly includes a pin lead 6, the pin lead 6 is fixedly connected to one side of the bottom of the terminal sleeve 5, the pin lead 6 is provided with an internal thread connection cavity 7, and the bottom end of the pin lead 6 is plugged with an external pin 8 from bottom to top;

[0027] The terminal sleeve 5 and the pin lead 6 are made of the same material. The pin lead 6 is symmetrically distributed about the vertical center line of the ceramic dielectric body 1. The bottom end of the pin lead 6 penetrates the inner protective layer 9 and the outer protective layer 11 and extends to the outside. The inner protective layer 9, the outer protective layer 11 and the outer wall of the pin lead 6 fit tightly without any gap. The outer diameter of the external pin 8 is the same as the inner diameter of the internal thread connection cavity 7. The thread outside the external pin 8 matches the thread inside the internal thread connection cavity 7. The pin can be removed and replaced, and the maintenance cost is lower.

[0028] Specifically, Figure 1 and Figure 2 As shown, when a single external pin 8 is damaged, clamp the damaged external pin 8 with pliers and rotate it to unscrew it from the internal thread connection cavity 7 at the bottom of the pin lead-out head 6, take out a new external pin 8 and screw it back in. Compared with replacing the entire pin 8, the cost of replacing a single external pin 8 is lower.

[0029] Embodiment 2: A fluorescent coating layer 10 is filled between the outside of the inner protective layer 9 and the inner wall of the outer protective layer 11. The thickness of the fluorescent coating layer 10 and the outer protective layer 11 are the same, so it is easier to detect cracks;

[0030] Specifically, Figure 1 and Figure 3 As shown, there is a fluorescent paint layer 10 between the inner protective layer 9 and the outer protective layer 11. When the outer protective layer 11 is cracked, the position of the crack and whether the inner protective layer 9 has cracks can be determined by irradiating it with a purple light based on the reflection of the fluorescent paint layer 10.

[0031] Embodiment 3: The rear end of the outer protective layer 11 is coated with a self-adhesive sticker 12, and the rear end of the self-adhesive sticker 12 is applied with a release paper 13. A tearing head 14 is provided on one side of the top of the release paper 13. The self-adhesive sticker 12 and the release paper 13 have the same size. The release paper 13 completely covers the surface of the self-adhesive sticker 12. There is a distance between the front end of the tearing head 14 and the rear end of the outer protective layer 11. The outer protective layer 11 and the tearing head 14 are not connected. The adhesive can increase the stability of the capacitor installation;

[0032] Specifically, Figure 1 and Figure 4 As shown, bend the external pin 8 to make the back of the capacitor fit the circuit board, pinch the tear head 14 to tear off the release paper 13, and press one side of the adhesive 12 onto the circuit board to form a bond, which can increase the stability of the capacitor installation and share the stress at the external pin 8.

[0033] Working principle: When the utility model is in use, first, the ceramic dielectric body 1 is used as the dielectric body of the capacitor, and the copper inner electrode sheet 3 inside it forms a stacked structure. The external pin 8 is connected to the integrated circuit board through soldering. When a single external pin 8 is damaged, the damaged external pin 8 is clamped with pliers and rotated, and it is screwed out from the internal thread connection cavity 7 at the bottom of the pin lead 6, and a new external pin 8 is taken out and screwed back in. Compared with the overall replacement, the cost of replacing a single external pin 8 is lower. The inner protective layer 9 and the outer protective layer 11 can form a protective layer on the outside of the capacitor to prevent leakage, friction and other problems. There is a layer of fluorescent paint 10 between the inner protective layer 9 and the outer protective layer 11. When the outer protective layer 11 is cracked, it can be illuminated by a purple light, and the location of the crack and whether the inner protective layer 9 has cracks can be judged according to the reflection of the fluorescent paint layer 10. As the external pins 8 of the capacitor are soldered to the circuit board, bend the external pins 8 so that the back of the capacitor fits the circuit board, pinch the tear head 14 to tear off the release paper 13, and press one side of the adhesive 12 onto the circuit board to form a bond, which can increase the stability of the capacitor installation and share the stress at the external pins 8.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An integrated circuit stacked capacitor, comprising a ceramic dielectric body (1), characterized in that: Copper outer electrodes (2) are fixedly connected to both sides of the ceramic dielectric body (1), three groups of copper inner electrode sheets (3) are welded to one side of the copper outer electrode (2), the outer portion of the copper inner electrode sheet (3) is coated with a nickel barrier layer (4), the outer portion of the nickel barrier layer (4) is sleeved with a terminal sleeve (5), the outer portion of the ceramic dielectric body (1) and the terminal sleeve (5) is coated with an inner protective layer (9), the outer portion of the inner protective layer (9) is provided with an outer protective layer (11), and the bottom end of the terminal sleeve (5) is provided with a disassembly assembly component for facilitating the replacement of pins; The disassembly and assembly component comprises a pin lead-out head (6), the pin lead-out head (6) is fixedly connected to one side of the bottom of the terminal sleeve (5), an internal thread connection cavity (7) is arranged inside the pin lead-out head (6), and an external pin (8) is plugged from bottom to top at the bottom end of the pin lead-out head (6).

2. The integrated circuit stacked capacitor according to claim 1, characterized in that: The terminal sleeve (5) and the pin lead-out head (6) are made of the same material, and the pin lead-out head (6) is symmetrically distributed about the vertical center line of the ceramic dielectric body (1).

3. The integrated circuit stacked capacitor according to claim 1, characterized in that: The bottom end of the pin lead-out header (6) penetrates the interior of the inner protective layer (9) and the outer protective layer (11) and extends to the outside, and the inner protective layer (9), the outer protective layer (11) and the outer wall of the pin lead-out header (6) are tightly fitted without any gap.

4. The integrated circuit stacked capacitor according to claim 1, characterized in that: The outer diameter of the external pin (8) is the same as the inner diameter of the internal thread connection cavity (7), and the outer thread of the external pin (8) matches the inner thread of the internal thread connection cavity (7).

5. The integrated circuit stacked capacitor according to claim 1, characterized in that: A fluorescent paint layer (10) is filled between the outside of the inner protective layer (9) and the inner wall of the outer protective layer (11), and the fluorescent paint layer (10) and the outer protective layer (11) have the same thickness.

6. The integrated circuit stacked capacitor according to claim 1, characterized in that: The rear end of the outer protective layer (11) is coated with a self-adhesive sticker (12), the rear end of the self-adhesive sticker (12) is applied with a release paper (13), and a tearing head (14) is provided on one side of the top of the release paper (13).

7. The integrated circuit stacked capacitor according to claim 6, characterized in that: The sizes of the self-adhesive sticker (12) and the release paper (13) are the same, and the release paper (13) completely covers the surface of the self-adhesive sticker (12).

8. The integrated circuit stacked capacitor according to claim 6, characterized in that: There is a distance between the front end of the tearing head (14) and the rear end of the outer protective layer (11), and the outer protective layer (11) and the tearing head (14) are not connected.

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