CN212934604U - Bidirectional low-voltage transient voltage suppressor - Google Patents
Bidirectional low-voltage transient voltage suppressor Download PDFInfo
- Publication number
- CN212934604U CN212934604U CN202021476953.2U CN202021476953U CN212934604U CN 212934604 U CN212934604 U CN 212934604U CN 202021476953 U CN202021476953 U CN 202021476953U CN 212934604 U CN212934604 U CN 212934604U
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- lead
- diode chip
- strip
- horizontal
- lead bar
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32135—Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/32145—Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
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Abstract
The utility model discloses a two-way low pressure transient voltage suppressor, including first diode chip, second diode chip, first pin strip and second pin strip, this vertical weld part is perpendicular setting with horizontal pin portion, slope connecting portion and horizontal pin portion contained angle are 30~60 degrees; the first diode chip, the second diode chip, the respective vertical welding parts of the first lead bar and the second lead bar, and the inclined connecting parts are positioned in the epoxy packaging body, the respective horizontal lead parts of the first lead bar and the second lead bar are positioned at the bottom of the epoxy packaging body, and the first diode chip and the second diode chip are vertically arranged between the respective vertical welding parts of the first lead bar and the second lead bar. The utility model discloses both reduced the installation area of device, also avoided small clearance to device life has been prolonged.
Description
Technical Field
The utility model relates to a semiconductor device technical field especially relates to a two-way low pressure transient voltage inhibitor.
Background
The damage of static electricity to electronic components is divided into sudden damage and potential damage, wherein the sudden damage refers to partial damage and loss of function of a device, the potential damage refers to partial damage and loss of function of the device, the function of the device is not lost, and the device cannot be found in a production process test, but the product becomes unstable in use, and the product is good and bad, so that the product quality is more damaged. As the integration of elements becomes higher, the improvement of the integration means a reduction in the electrostatic breakdown resistance of the device. How to design a small transient voltage suppressor diode becomes the direction of effort for those skilled in the art.
Disclosure of Invention
The utility model aims at providing a two-way low pressure transient voltage suppressor, this two-way low pressure transient voltage suppressor had both reduced the installation area of device, had also avoided small clearance to device life has been prolonged.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a bidirectional low-voltage transient voltage suppressor comprises a first diode chip, a second diode chip, a first lead strip and a second lead strip, wherein the first lead strip and the second lead strip are respectively composed of a vertical welding part, a horizontal lead part and an inclined connecting part positioned between the vertical welding part and the horizontal lead part, the vertical welding part and the horizontal lead part are vertically arranged, and an included angle between the inclined connecting part and the horizontal lead part is 30-60 degrees;
the first diode chip, the second diode chip, the respective vertical welding parts of the first lead bar and the second lead bar and the inclined connecting parts are positioned in the epoxy packaging body, the respective horizontal lead parts of the first lead bar and the second lead bar are positioned at the bottom of the epoxy packaging body, and the first diode chip and the second diode chip are vertically arranged between the respective vertical welding parts of the first lead bar and the second lead bar;
the negative pole of the first diode chip is electrically connected with the negative pole of the second diode chip through a soldering paste layer, and the respective positive poles of the first diode chip and the second diode chip are electrically connected with the respective vertical welding parts of the first lead bar and the second lead bar through the soldering paste layer.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the included angle between the inclined connecting part and the horizontal pin part is 45 degrees.
2. In the above aspect, the horizontal lead portions of the first lead bar and the second lead bar extend from the side walls thereof in the horizontal direction.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses two-way low pressure transient voltage suppressor, its first lead wire strip and second lead wire strip by vertical weld part, horizontal pin portion constitute, this vertical weld part is perpendicular setting with horizontal pin portion, the respective horizontal pin portion of first lead wire strip and second lead wire strip is located the epoxy packaging body bottom, first diode chip, second diode chip all set up vertically between the respective vertical weld part of first lead wire strip and second lead wire strip; the negative pole of first diode chip and the negative pole of second diode chip are connected through a soldering paste layer electricity, and this first diode chip, the respective positive pole of second diode chip are connected through soldering paste layer and the respective vertical weld part electricity of first lead wire strip and second lead wire strip respectively, when the destruction that the components and parts in the protection circuit avoided surge pulse, both reduced the installation area of device, also improved the intensity of device and the welding of the diode chip of being convenient for.
2. The utility model discloses two-way low pressure transient voltage suppressor, its first pin strip and second pin strip constitute by vertical weld part, horizontal pin portion and the slope connecting portion that are located between vertical weld part, the horizontal pin portion, and slope connecting portion and horizontal pin portion contained angle are 30~60, have improved the joint strength between epoxy packaging body and the pin strip greatly, have avoided small clearance to device life has been prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the bidirectional low-voltage transient voltage suppressor of the present invention.
In the above drawings: 1. a first diode chip; 2. a first lead strip; 3. a second lead strip; 4. a vertical weld; 5. a horizontal pin section; 6. an inclined connecting part; 7. an epoxy package; 8. welding a paste layer; 9. a second diode chip.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1: a bidirectional low-voltage transient voltage suppressor comprises a first diode chip 1, a second diode chip 9, a first lead strip 2 and a second lead strip 3, wherein the first lead strip 2 and the second lead strip 3 are respectively composed of a vertical welding part 4, a horizontal lead part 5 and an inclined connecting part 6 positioned between the vertical welding part 4 and the horizontal lead part 5, the vertical welding part 4 and the horizontal lead part 5 are vertically arranged, and an included angle between the inclined connecting part 6 and the horizontal lead part 5 is 30-60 degrees;
the first diode chip 1, the second diode chip 9, the vertical welding part 4 of the first lead strip 2 and the second lead strip 3 and the inclined connecting part 6 are positioned in an epoxy packaging body 7, the horizontal lead part 5 of the first lead strip 2 and the second lead strip 3 is positioned at the bottom of the epoxy packaging body 7, and the first diode chip 1 and the second diode chip 9 are vertically arranged between the vertical welding parts 4 of the first lead strip 2 and the second lead strip 3;
the cathode of the first diode chip 1 is electrically connected with the cathode of the second diode chip 9 through a solder paste layer 8, and the respective anodes of the first diode chip 1 and the second diode chip 9 are electrically connected with the respective vertical welding parts 4 of the first lead bar 2 and the second lead bar 3 through the solder paste layer 8.
The inclined connecting portion 6 forms an angle of 50 ° with the horizontal leg portion 5.
Example 2: a bidirectional low-voltage transient voltage suppressor comprises a first diode chip 1, a second diode chip 9, a first lead strip 2 and a second lead strip 3, wherein the first lead strip 2 and the second lead strip 3 are respectively composed of a vertical welding part 4, a horizontal lead part 5 and an inclined connecting part 6 positioned between the vertical welding part 4 and the horizontal lead part 5, the vertical welding part 4 and the horizontal lead part 5 are vertically arranged, and an included angle between the inclined connecting part 6 and the horizontal lead part 5 is 30-60 degrees;
the first diode chip 1, the second diode chip 9, the vertical welding part 4 of the first lead strip 2 and the second lead strip 3 and the inclined connecting part 6 are positioned in an epoxy packaging body 7, the horizontal lead part 5 of the first lead strip 2 and the second lead strip 3 is positioned at the bottom of the epoxy packaging body 7, and the first diode chip 1 and the second diode chip 9 are vertically arranged between the vertical welding parts 4 of the first lead strip 2 and the second lead strip 3;
the cathode of the first diode chip 1 is electrically connected with the cathode of the second diode chip 9 through a solder paste layer 8, and the respective anodes of the first diode chip 1 and the second diode chip 9 are electrically connected with the respective vertical welding parts 4 of the first lead bar 2 and the second lead bar 3 through the solder paste layer 8.
The inclined connecting portion 6 forms an angle of 45 ° with the horizontal lead portion 5.
The horizontal lead portions 5 of the first lead frame 2 and the second lead frame 3 extend from the side walls thereof in the horizontal direction.
When the bidirectional low-voltage transient voltage suppressor is adopted, the mounting area of the device is reduced, the strength of the device is improved, and the diode chip is convenient to weld while components in the circuit are protected from being damaged by surge pulses; in addition, its first lead wire strip and second lead wire strip constitute by vertical weld part, horizontal pin portion and the slope connecting portion that are located between vertical weld part, the horizontal pin portion, and slope connecting portion and horizontal pin portion contained angle are 30~60, have improved the bonding strength between epoxy packaging body and the lead wire strip greatly, have avoided small clearance to device life has been prolonged.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. A bi-directional low voltage transient voltage suppressor, characterized by: the LED chip comprises a first diode chip (1), a second diode chip (9), a first lead strip (2) and a second lead strip (3), wherein the first lead strip (2) and the second lead strip (3) are respectively composed of a vertical welding part (4), a horizontal pin part (5) and an inclined connecting part (6) positioned between the vertical welding part (4) and the horizontal pin part (5), the vertical welding part (4) and the horizontal pin part (5) are vertically arranged, and an included angle of 30-60 degrees is formed between the inclined connecting part (6) and the horizontal pin part (5);
the vertical welding parts (4) and the inclined connecting parts (6) of the first diode chip (1), the second diode chip (9), the first lead bar (2) and the second lead bar (3) are positioned in an epoxy packaging body (7), the horizontal lead foot parts (5) of the first lead bar (2) and the second lead bar (3) are positioned at the bottom of the epoxy packaging body (7), and the first diode chip (1) and the second diode chip (9) are vertically arranged between the vertical welding parts (4) of the first lead bar (2) and the second lead bar (3);
the negative pole of the first diode chip (1) is electrically connected with the negative pole of the second diode chip (9) through a welding paste layer (8), and the respective positive poles of the first diode chip (1) and the second diode chip (9) are electrically connected with the respective vertical welding parts (4) of the first lead bar (2) and the second lead bar (3) through the welding paste layer (8).
2. The bi-directional low voltage transient voltage suppressor of claim 1 wherein: the inclined connecting part (6) and the horizontal pin part (5) form an included angle of 45 degrees.
3. The bi-directional low voltage transient voltage suppressor of claim 1 wherein: the horizontal pin parts (5) of the first lead strip (2) and the second lead strip (3) extend out of the side walls of the first lead strip and the second lead strip in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021476953.2U CN212934604U (en) | 2020-07-23 | 2020-07-23 | Bidirectional low-voltage transient voltage suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021476953.2U CN212934604U (en) | 2020-07-23 | 2020-07-23 | Bidirectional low-voltage transient voltage suppressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212934604U true CN212934604U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021476953.2U Active CN212934604U (en) | 2020-07-23 | 2020-07-23 | Bidirectional low-voltage transient voltage suppressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212934604U (en) |
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2020
- 2020-07-23 CN CN202021476953.2U patent/CN212934604U/en active Active
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