CN201528468U - Printed circuit board - Google Patents
Printed circuit board Download PDFInfo
- Publication number
- CN201528468U CN201528468U CN2009200767766U CN200920076776U CN201528468U CN 201528468 U CN201528468 U CN 201528468U CN 2009200767766 U CN2009200767766 U CN 2009200767766U CN 200920076776 U CN200920076776 U CN 200920076776U CN 201528468 U CN201528468 U CN 201528468U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- pcb
- fixed division
- chip component
- 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
Links
- 238000003466 welding Methods 0.000 claims abstract description 12
- 229910000679 solder Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
A printed circuit board is welded with at least a chip member; and at least a firm joint portion and at least a notch are positioned near the chip member. The notch of the utility model is arranged between the chip member and the firm joint portion, thus solving the problem of welding destroy on the chip member, owing to stress generated by the firm joint portion and improving the product yield.
Description
Technical field
The utility model relates to a kind of printed circuit board (PCB), particularly relates to a kind of printed circuit board (PCB) that prevents the chip component solder crack.
Background technology
Printed circuit board (PCB) almost can appear in the middle of each electronic equipment, such as the mainboard of television set, computer equipment or video card or the like.And assembled printed circuit boards to the mode of above-mentioned electronic equipment the Fixed Division by screw hole for example is set on printed circuit board (PCB) and reach normally in the mode of screw locking.In addition, above-mentioned electronic equipment is organized mostly and is provided with such as a plurality of expansion boards such as sound card, network interface card or video cards, to strengthen its additional functionality.Therefore, the Fixed Division of for example expanding draw-in groove must be set on printed circuit board (PCB), peg graft with the golden finger that expansion board is provided, and the electric connection between realization expansion board and the printed circuit board (PCB), and then the function that expands electronic equipment itself.
In addition, along with the significantly growth of various Portable (Portable) electronic equipments such as communication, network and computer, can dwindle integrated circuit (IC) area and have high density and the spherical grid array type of many pinizations characteristic (Ball Grid Array; BGA) element, crystal covering type (Flip Chip; FC) element, chip size packages (Chip Size Package; CSP) element and multi-chip module (Multi ChipModule; MCM) chip component such as element day by day becomes the main flow on the encapsulation market, because the continuous microminiaturization of integrated circuit, cause the element closeness of laying in the same printed circuit board (PCB) very high, then may be because of space problem, and be laid in the said chip element from above-mentioned for example screw hole or expand near excessively zone, Fixed Division such as draw-in groove.Because above-mentioned potted element overall dimensions is big and have a plurality of pins, state the Fixed Division in the use, for example by screw hole lock screw with fixed printed circuit board to electronic equipment, or unload screw with disassemble printed circuit board from screw hole, again or when expanding draw-in groove plug expansion board, it is excessive to tend to stress, cause screw hole or expand near particularly above-mentioned self the chip component pin scolding tin oversize and that pin is too much of the element draw-in groove break (crack), just practise the solder crack phenomenon that claims, and reduce the product yield.
In sum, how a kind of printed circuit board (PCB) of avoiding the many disadvantages of above-mentioned prior art is proposed, to avoid stress that the Fixed Division produces that the welding of this chip component is impacted, and prevent the chip component solder crack of printed circuit board (PCB), and then improve the product yield, real is technical problem anxious to be solved at present.
The utility model content
Shortcoming in view of above-mentioned prior art, main purpose of the present utility model provides a kind of printed circuit board (PCB), it is between contiguous chip component that is provided with and Fixed Division fluting to be set, and the stress that produces when avoiding the Fixed Division to use causes the chip component solder crack, and then improves the product yield.
For achieving the above object and other purposes, the utility model provides a kind of printed circuit board (PCB), comprising: the circuit board body; At least one chip component is welded on this circuit board body; At least one Fixed Division is arranged on this circuit board body; And at least one fluting, be arranged on this circuit board body, and between this chip component and this Fixed Division, be released the stress that this Fixed Division impacts the welding of this chip component by this fluting.
In an embodiment of printed circuit board (PCB) of the present utility model, this chip component is spherical grid array type (ball grid array, a BGA) element.This fluting is for running through slit, and the shape that wherein runs through slit for example is L type, camber or S type etc.This Fixed Division is screw hole, connector slot and/or expands draw-in groove.
In another embodiment of printed circuit board (PCB) of the present utility model, this fluting is made of a plurality of spaced son flutings, and integral body is rendered as L type, camber or S type.
In an embodiment again of printed circuit board (PCB) of the present utility model, the distance between this fluting and this chip component is less than the distance between this fluting and this Fixed Division.
In addition, this chip component is also can be for example big and have an element of a plurality of pins for overall dimensions such as crystal covering type element, chip size packages element or multi-chip module elements.
Than prior art, printed circuit board (PCB) of the present utility model, by in printed circuit board (PCB), designing fluting between contiguous chip component that is provided with and the Fixed Division, oversize to prevent in the prior art because of chip component self, pin is too much, and its installation position too near the Fixed Division of printed circuit board (PCB), easily produces the drawback that stress causes the welding of chip component pin to destroy when using Fixed Division (for example unloading printed circuit board (PCB) to above-mentioned electronic equipment or at expansion draw-in groove plug expansion board by the screw hole group).
Description of drawings
Fig. 1 is the layout structure schematic diagram that shows printed circuit board (PCB) of the present utility model.
The simple declaration of element numbers:
1 printed circuit board (PCB)
11 chip components
12 circuit board bodies
13 screw holes
15 flutings
Embodiment
Below by preferable instantiation execution mode of the present utility model is described, those skilled in the art can understand other advantages of the present utility model and effect easily by the content that this specification disclosed.
See also Fig. 1, Fig. 1 is the layout structure schematic diagram that shows printed circuit board (PCB) of the present utility model.As shown in Figure 1, printed circuit board (PCB) 1 of the present utility model is laid with at least one chip component 11 (in the following example, be to be example, but not as limit with the chip component 11 of soldering on this circuit board body 12) and at least one Fixed Division 13 of the stress that impacts with the contiguous welding that is provided with and may produces this chip component 11 of chip component 11.This Fixed Division 13 for example is screw hole, expansion draw-in groove or connector slot, but not as limit, such as can assist fixed printed circuit board 1 or in order to auxiliary fixed outer element other elements to printed circuit board (PCB) 1, and may produce the Fixed Division of the stress that the welding to this chip component 11 impacts, all belong to the application category of Fixed Division 13 of the present utility model.In the present embodiment, be to be that screw hole illustrates, and chip component 11 is spherical grid array type (Ball Grid Array, BGA) element, crystal covering type (Flip Chip with Fixed Division 13; FC) element, chip size packages (Chip SizePackage; CSP) element or multi-chip module (Multi Chip Module; MCM) overall dimensions such as element is big and have the element of a plurality of pins, but not as limit.And printed circuit board (PCB) 1 of the present utility model is to cross near and himself is oversize, pin is too much chip component 11 and the safeguard measure taked at distance Fixed Division 13 (for example screw hole).
More detailed it, printed circuit board (PCB) 1 of the present utility model has fluting 15 between contiguous chip component 11 that is provided with and Fixed Division 13, (for example lock screw and 13 unload screw) when avoiding using Fixed Division 13 thus, and produce the defective that stress damages the welding between printed circuit board (PCB) 1 and chip component 11 pins with disassemble printed circuit board 1 with fixed printed circuit board 1 or from the Fixed Division by screw hole.
In addition, fluting 15 is for example for running through the slit that runs through of printed circuit board (PCB) 1.The preferred shape that runs through slit is L type, camber or S type.In the present embodiment, as shown in Figure 1, be 15 to be that the L type runs through slit and illustrates to slot.In addition, fluting 15 is not limited to slit, in other embodiments, fluting 15 also can be for example by being made of a plurality of spaced son flutings, integral body is rendered as L type, camber or S type, as long as can reach the application category that the structure of the equal effect of dispersive stress all belongs to fluting 15 of the present utility model.
Moreover the distance between this fluting 15 and this chip component 11 is less than the distance between this fluting 15 and this Fixed Division 13, thus the stress that makes these fluting 15 more effective releases use the welding of these 13 pairs of these chip components 11 in Fixed Division to impact.
Printed circuit board (PCB) 1 of the present utility model is by fluting 15 is set, the stress that impacts in order to the welding that when using Fixed Division 13, discharges this chip component 11, and then avoid chip component 11 to be subjected to above-mentioned stress influence and destroy defective with the welding of printed circuit board (PCB) 1.
From the above, printed circuit board (PCB) of the present utility model is between the contiguous chip component that is provided with and the Fixed Division fluting to be set in printed circuit board (PCB), use the stress that (for example unloads printed circuit board (PCB) and plug expansion board) generation when avoiding using the Fixed Division and damage the defective of the welding of oversize chip component pin, thereby promote the product yield to above-mentioned electronic equipment or at the expansion draw-in groove by the screw hole group.
The foregoing description only illustrates principle of the present utility model and effect thereof, but not is used to limit the utility model.Any those skilled in the art all can be under spirit of the present utility model and category, and the foregoing description is modified and changed.Therefore, rights protection scope of the present utility model should be foundation with the scope of claims.
Claims (9)
1. a printed circuit board (PCB) is characterized in that, comprising:
The circuit board body;
At least one chip component is welded on this circuit board body;
At least one Fixed Division is arranged on this circuit board body; And
At least one fluting is arranged on this circuit board body, and between this chip component and this Fixed Division, is released the stress that this Fixed Division impacts the welding of this chip component by this fluting.
2. printed circuit board (PCB) according to claim 1 is characterized in that: this Fixed Division is a screw hole.
3. printed circuit board (PCB) according to claim 1 is characterized in that: this Fixed Division is the connector slot.
4. printed circuit board (PCB) according to claim 1 is characterized in that: this Fixed Division is for expanding draw-in groove.
5. printed circuit board (PCB) according to claim 1 is characterized in that: this chip component is the spherical grid array type element.
6. printed circuit board (PCB) according to claim 1 is characterized in that: this fluting is for running through slit.
7. printed circuit board (PCB) according to claim 6 is characterized in that: this run through slit the L type that is shaped as, camber or S type wherein one.
8. printed circuit board (PCB) according to claim 1 is characterized in that: this fluting is made of a plurality of spaced son flutings, and integral body is rendered as L type, camber or S type.
9. printed circuit board (PCB) according to claim 1 is characterized in that: the distance between this fluting and this chip component is less than the distance between this fluting and this Fixed Division.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200767766U CN201528468U (en) | 2009-06-22 | 2009-06-22 | Printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200767766U CN201528468U (en) | 2009-06-22 | 2009-06-22 | Printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201528468U true CN201528468U (en) | 2010-07-14 |
Family
ID=42519749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200767766U Expired - Fee Related CN201528468U (en) | 2009-06-22 | 2009-06-22 | Printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201528468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870676A (en) * | 2016-05-26 | 2016-08-17 | 广东欧珀移动通信有限公司 | A kind of PCB board and processing method thereof |
| CN112333912A (en) * | 2020-10-14 | 2021-02-05 | Oppo广东移动通信有限公司 | Circuit board assemblies, circuit board structures and electronic equipment |
-
2009
- 2009-06-22 CN CN2009200767766U patent/CN201528468U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870676A (en) * | 2016-05-26 | 2016-08-17 | 广东欧珀移动通信有限公司 | A kind of PCB board and processing method thereof |
| CN105870676B (en) * | 2016-05-26 | 2019-02-19 | Oppo广东移动通信有限公司 | PCB and processing method thereof |
| CN112333912A (en) * | 2020-10-14 | 2021-02-05 | Oppo广东移动通信有限公司 | Circuit board assemblies, circuit board structures and electronic equipment |
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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: 20100714 Termination date: 20130622 |