CN2867594Y - Chip appliance - Google Patents
Chip appliance Download PDFInfo
- Publication number
- CN2867594Y CN2867594Y CN 200520144823 CN200520144823U CN2867594Y CN 2867594 Y CN2867594 Y CN 2867594Y CN 200520144823 CN200520144823 CN 200520144823 CN 200520144823 U CN200520144823 U CN 200520144823U CN 2867594 Y CN2867594 Y CN 2867594Y
- Authority
- CN
- China
- Prior art keywords
- chip
- grounding pin
- circuit board
- fin
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses a chip device, which includes radiation fin disposed on the chip, wherein the radiation fin is provided with grounding pin, and the grounding pin is electronically connected with ground wire via the protective area or working area of circuit board. When the chip locates at the center of the circuit board, the grounding pin can be electronically connected with ground wire via the working area. When the chip locates at the edge of the circuit board, the grounding pin can be electronically connected with ground wire via the protective area. The utility model provides chip antistatic measure without increasing cost and under the condition that the entire chip cannot be provided with shielded enclosure due to structure restriction.
Description
Technical field
The utility model relates to a kind of chip device, particularly a kind of chip device of energy antistatic.
Background technology
Static is the static electric charge that body surface has.Static is a kind of electric energy, and it resides in body surface, is positive charge and negative electrical charge unbalanced result in subrange, forms by electronics or ion-transfer.Static discharge be object with different electrostatic potentials near or during by direct contact, the electric charge of generation shifts.Anti-static ability to the communication electronic equipment requires to have internal and international compulsory standard.Can the anti-static ability of communication electronic equipment is directly connected to the communication electronic equipment in the normal use under the electromagnetic field environment of complexity.Though it is various that the method for the antistatic of communication electronic equipment has, because the restriction of structural system scheme, the antistatic that satisfy the communication electronic equipment requires usually to become the difficult point in the product development.Especially under the situation that whole anti-static method can not adopt, also there is not the chip device of energy antistatic.
The utility model content
The technical problem that the utility model solved is to provide a kind of chip device, can't add under the situation of radome to integral body with the restriction that reaches because of system configuration, provides antistatic to chip device.
For addressing the above problem, the utility model provides a kind of chip device, and this device comprises: comprise the fin that is installed on the chip, have grounding pin on the described fin, the ground wire on described grounding pin and the circuit board electrically connects.
Described ground wire can be the protection ground on the circuit board.
Described ground wire can be the place of working on the circuit board.
When described chip during in described circuit board central authorities, described ground wire can be the place of working on the circuit board.
When described chip during at described board edge, described ground wire can be the protection ground on the circuit board.
Described grounding pin can be an earthing rod.
Described grounding pin can be drawn from the edge of described fin.
Owing to utilize in this chip device on the chip device metal fin as the antistatic device of chip device.When the shell of cabinet is subjected under the situation of electrostatic interference; metal fin is owing to link to each other with protection ground or place of working by grounding pin; therefore metal fin and the earth have been formed the equipotentiality body; therefore can make the generation of static electricity interfere with electromagnetic field end at the upper surface of metal fin, and the chip that is connected with the lower surface of metal fin just can have been avoided the generation of static electricity interference of electromagnetic field.Therefore the utility model not only can not increase device cost, can also can't add under the situation of radome to integral body in the restriction because of system configuration, provides anti-static precautions to chip, has solved the antistatic problem of chip.
Description of drawings
Fig. 1 is chip described in the embodiment, fin, protection ground or place of working, grounding pin structural representation.
Embodiment
For making the utility model be easier to understand, present embodiment is based on that following thinking implements.
Static is the static electric charge that body surface has.Static is a kind of electric energy, and it resides in body surface, is positive charge and negative electrical charge unbalanced result in subrange, forms by electronics or ion-transfer.
Static discharge be object with different electrostatic potentials near or during by direct contact, the electric charge of generation shifts.
Shielding is to protect thing to be sealed desire with the shield of different shapes such as conduction or the shell made of permeability magnetic material, plate, cover, tube, is used for preventing the interference of electromagnetic energy on every side or prevents that unwanted electromagnetic energy is coupled in the other sensitive equipment going.
Protection ground is the ground, loop of non-useful electric current in the equipment, non-useful electric current such as leakage current, surge current, common mode disturbances electric current, electrostatic induced current etc., thus protection ground is to be used for avoiding to produce the loop by other objects and people to reach the protection purpose.
The place of working is the current circuit ground of circuit power in the system, i.e. the reference point of potential of signal circuit can be divided into digitally and simulation ground usually.
Fig. 1 is the structural representation of embodiment; as shown in the figure, utilize the electric conductivity of metal fin 12, be connected with protection ground or place of working 13 by grounding pin 14 simultaneously metal fin 12; make metal fin 12 serve as shield, the chip 11 that needs protection is sealed.The metal fin 12 that serves as shield can prevent or effectively reduce around electromagnetic energy interference, prevent from or effectively reduce unwanted electromagnetic energy to be coupled in the normal working chip 11 and to go.
Wherein, grounding pin 14 is connected with protection ground or place of working 13 and is connected by earthing rod in the drawings; certainly it also can be that other mode connects; its objective is metal fin 12 is connected with protection ground or place of working 13; make protection ground or place of working 13 as ground, electrostatic induced current loop, thereby reach the protection purpose to avoid producing the loop by other objects and people.Grounding pin 14 is drawn from the edge of fin 12.
When the shell 10 of cabinet is subjected under the situation of electrostatic interference; because is equipotentiality body with the metal fin 12 that protection ground or place of working 13 link to each other with the earth by grounding pin 14, therefore can make the generation of static electricity interfere with electromagnetic field end at the upper surface of metal fin 12.Can avoid the generation of static electricity interference of electromagnetic field with the chip device 10 that the lower surface of metal fin 12 is connected, thereby make fin 12 can be used as the device of the antistatic device of chip device 11.
The step of implementing among the embodiment is:
Be installed on the fin on the chip, grounding pin is arranged on the fin, the ground wire on grounding pin and the circuit board is electrically connected.。
Grounding pin ground connection can be by protection ground ground connection, also can be by place of working ground connection.
Consider that be connected with protection ground still be connected with the place of working arrangement scheme on main plane according to circuit board of grounding pin determines.Be positioned at the circuit board center as fruit chip, inconvenience will be introduced with protecting, or circuit board itself is not with considering to arrange protection, and grounding pin just is connected with the place of working so.It is consistent that the metal shell of clock crystal oscillator connects the method in place of working on this connection and the circuit board.Be positioned at the board edge position as fruit chip, the position of arranging on the circuit board that protection ground is arranged and can be directed to chip easily, grounding pin just is connected with protection ground.
Claims (7)
1, a kind of chip device comprises the fin that is installed on the chip, it is characterized in that, has grounding pin on the described fin.
2, chip device as claimed in claim 1 is characterized in that, described fin is with chip package.
3, chip device as claimed in claim 1 is characterized in that, described fin is on chip top.
4, chip device as claimed in claim 1 is characterized in that, described fin area is greater than chip.
5, chip device as claimed in claim 1 is characterized in that, described grounding pin has one at least.
6, chip device as claimed in claim 1 is characterized in that, described grounding pin is an earthing rod.
7, chip device as claimed in claim 1 is characterized in that, described grounding pin is drawn from the edge of described fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144823 CN2867594Y (en) | 2005-12-15 | 2005-12-15 | Chip appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144823 CN2867594Y (en) | 2005-12-15 | 2005-12-15 | Chip appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2867594Y true CN2867594Y (en) | 2007-02-07 |
Family
ID=37703300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520144823 Expired - Fee Related CN2867594Y (en) | 2005-12-15 | 2005-12-15 | Chip appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2867594Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446905A (en) * | 2011-12-21 | 2012-05-09 | 铜陵浩岩节能科技有限公司 | Field-effect component electrostatic protector |
| CN114459622A (en) * | 2022-02-09 | 2022-05-10 | 艾礼富电子(深圳)有限公司 | Electrostatic protection device for temperature sensor |
-
2005
- 2005-12-15 CN CN 200520144823 patent/CN2867594Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446905A (en) * | 2011-12-21 | 2012-05-09 | 铜陵浩岩节能科技有限公司 | Field-effect component electrostatic protector |
| CN114459622A (en) * | 2022-02-09 | 2022-05-10 | 艾礼富电子(深圳)有限公司 | Electrostatic protection device for temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070207 Termination date: 20131215 |