ESD device with impedance matching function

Abstract

The utility model discloses an ESD (Electro-Static Discharge) device with an impedance matching function, which relates to the technical field of ESD device packaging and comprises a product crystal grain. The frame electrode plate is arranged at the upper end of the product crystal grain; the left electrode plate is connected with the frame electrode plate; the right electrode plate is arranged at the lower end of the product crystal grain; one end of the impedance part is connected to the left electrode plate, and the other end of the impedance part is connected to the right electrode plate; and the packaging part completely seals the product crystal grains, the frame electrode plate and the impedance part, and partially seals the left electrode plate and the right electrode plate. The impedance part is used for enhancing the impedance on the left electrode plate and the right electrode plate, and one impedance part can improve the impedance on the left electrode plate and the right electrode plate at the same time, so that the ESD device in a unit space can have higher impedance.

Description

Technical Field

[0001] The utility model relates to the technical field of ESD device packaging, in particular to an ESD device with an impedance matching function. Background Art

[0002] With the rapid development of electronic products, products tend to be miniaturized, and the nanotechnology of IC chips tends to mature. The problem that follows is that the EMS immunity tolerance of IC chips is reduced, and corresponding ESD and other protection devices need to be added for EMS immunity protection, thereby improving the reliability and service life of electronic products in actual application environments. Semiconductor ESD devices are a type of device used to protect electronic devices from electrostatic discharge (ESD) damage. ESD is a common electrostatic discharge phenomenon that can generate high-energy arcs and instantaneous voltage pulses, which may cause damage or destruction to integrated circuits and other electronic devices. Semiconductor ESD devices are usually integrated into key locations such as the input / output (I / O) interface, power lines, and communication lines of electronic systems. They can quickly absorb and disperse ESD energy, thereby protecting electronic devices and systems from ESD damage.

[0003] The ESD device packaging industry is seeking to solve the problem of space requirements for communication products. As the demand for miniaturization of electronic products becomes higher and higher, existing ESD devices are difficult to meet the function of matching impedance in a small space. Therefore, an ESD device with low space occupancy and impedance matching is needed. Utility Model Content

[0004] The purpose of the utility model is to increase the resistance value per unit area and the impedance by arranging an impedance part in the packaging part.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0006] An ESD device with impedance matching function, including a product crystal grain;

[0007] A frame electrode sheet disposed on the upper end of the product crystal grain, and a left electrode sheet connected to the frame electrode sheet;

[0008] A right electrode sheet disposed at the lower end of the product crystal grain;

[0009] An impedance part, one end of which is connected to the left electrode sheet, and the other end of which is connected to the right electrode sheet;

[0010] The packaging part completely seals the product crystal grain, frame electrode sheet and impedance part, and partially seals the left electrode sheet and the right electrode sheet.

[0011] To implement the above technical solution, an impedance part is provided, and the impedance part is used to enhance the impedance on the left electrode sheet and the right electrode sheet. One impedance part can enhance the impedance of the left electrode sheet and the right electrode sheet at the same time, so that the ESD device in the unit space can have a higher impedance.

[0012] As a preferred technical solution of the present application, the impedance part is an L-shaped resistor.

[0013] As a preferred technical solution of the present application, the impedance portion is an irregular resistor.

[0014] As a preferred technical solution of the present application, the packaging part is a component made of epoxy resin black glue.

[0015] As a preferred technical solution of the present application, the left electrode sheet and the right electrode sheet are both protruded from the packaging portion, and the protruding parts of the left electrode sheet and the right electrode sheet are L-shaped.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. By setting an impedance part, the impedance part is used to enhance the impedance on the left electrode sheet and the right electrode sheet. One impedance part can simultaneously enhance the impedance of the left electrode sheet and the right electrode sheet, so that the ESD device in the unit space can have a higher impedance.

[0018] 2. The packaging part is used to seal the product grain, frame electrode sheet, impedance part, left electrode sheet and right electrode sheet, which plays a certain protective role on the internal electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an overall structural diagram of an ESD device with impedance matching function in an embodiment of the utility model.

[0020] Markings in the figure: 1. Product grain; 2. Frame electrode sheet; 3. Left electrode sheet; 4. Right electrode sheet; 5. Impedance part; 6. Packaging part. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0022] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] Example:

[0026] See also Figure 1 As shown, this embodiment provides an ESD device with impedance matching function.

[0027] An ESD device with impedance matching function, comprising a product crystal grain 1;

[0028] A frame electrode sheet 2 is disposed at the upper end of the product crystal grain 1, and a left electrode sheet 3 is connected to the upper end of the frame electrode sheet 2;

[0029] The lower end of the product crystal grain 1 is directly connected to the right electrode sheet 4;

[0030] An impedance part 5 is provided between the right electrode sheet 4 and the left electrode sheet 3. One end of the impedance part 5 is connected to the left electrode sheet 3, and the other end is connected to the right electrode sheet 4. The impedance part 5 is used to enhance the impedance on the left electrode sheet 3 and the right electrode sheet 4. One impedance part 5 can simultaneously enhance the impedance of the left electrode sheet 3 and the right electrode sheet 4, so that the ESD device in the unit space can have a higher impedance.

[0031] The packaging part 6 completely seals the product crystal grain 1, the frame electrode sheet 2 and the impedance part 5, and partially seals the left electrode sheet 3 and the right electrode sheet 4. The packaging part 6 is used to partially seal the product crystal grain 1, the frame electrode sheet 2, the impedance part 5, the left electrode sheet 3 and the right electrode sheet 4, and plays a certain protective role on the internal electronic devices.

[0032] The impedance part 5 is a resistor, and the longitudinal cross-section of the resistor is L-shaped. The resistor has a relatively large resistance and is used to increase the resistance per unit area.

[0033] In another embodiment of the present application, the impedance part 5 is also a resistor, and the resistor is irregularly shaped to match the packaging part 6. By providing an irregular resistor, different usage requirements of the packaging part 6 can be met.

[0034] The packaging part 6 is a component made of epoxy resin black glue, which is used to prevent current overflow, protect the product grain 1, frame electrode sheet 2, impedance part 5, left electrode sheet 3 and right electrode sheet 4 in the packaging part 6, and extend the service life.

[0035] The left electrode sheet 3 and the right electrode sheet 4 are both protruded from the packaging part 6, and the protruding parts of the left electrode sheet 3 and the right electrode sheet 4 are L-shaped. The protruding parts of the left electrode sheet 3 and the right electrode sheet 4 are used for wiring and are electrically connected to the outside.

[0036] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. An ESD device with impedance matching function, characterized in that: The invention comprises a product grain (1); A frame electrode sheet (2) disposed on the upper end of the product crystal grain (1), and a left electrode sheet (3) connected to the frame electrode sheet (2); A right electrode sheet (4) disposed at the lower end of the product crystal grain (1); An impedance part (5), one end of which is connected to the left electrode sheet (3) and the other end of which is connected to the right electrode sheet (4); The packaging part (6) completely seals the product crystal grain (1), the frame electrode sheet (2) and the impedance part (5), and partially seals the left electrode sheet (3) and the right electrode sheet (4).

2. The ESD device with impedance matching function as claimed in claim 1, characterized in that: The impedance part (5) is an L-shaped resistor.

3. The ESD device with impedance matching function as claimed in claim 1, characterized in that: The impedance part (5) is an irregular resistor.

4. The ESD device with impedance matching function according to claim 1, characterized in that: The packaging part (6) is a component made of epoxy resin black glue.

5. The ESD device with impedance matching function according to any one of claims 1 to 4, characterized in that: The left electrode sheet (3) and the right electrode sheet (4) are both protruded from the packaging portion (6), and the protruding parts of the left electrode sheet (3) and the right electrode sheet (4) are L-shaped.

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