CN202870676U - Server mainboard - Google Patents
Server mainboard Download PDFInfo
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- CN202870676U CN202870676U CN201220428917.8U CN201220428917U CN202870676U CN 202870676 U CN202870676 U CN 202870676U CN 201220428917 U CN201220428917 U CN 201220428917U CN 202870676 U CN202870676 U CN 202870676U
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Abstract
The utility model discloses a server mainboard which is in a six-layer structure. The six-layer structure comprises a power transmission layer, a ground layer and four signal layers, at least one layer of the four signal layers is provided with a power transmission wire. The server mainboard has the advantages of being few in layers, low in cost, capable of guaranteeing low dynamic impedance under the condition that the capacitance and the number of capacitors are not increased and the like.
Description
Technical field
The utility model relates to a kind of mainboard, especially a kind of server master board.
Background technology
For server master board, in order to design high-level efficiency voltage-regulation (VR), usually start with from the efficient of feed circuit itself.In fact output to load end from feed circuit, need to carry out voltage transmission through the power delivery path.Based on power-limited layer design high-level efficiency VR, mainly design from two aspects.One is based on the design of power-limited layer feed circuit high conversion efficiency, and another is the low-impedance design of power-limited transport layer.
The power delivery layer of mainboard is full wafer copper, in the situation that DC load, its impedance is also little, but in the dynamic load situation, changing will appear in its impedance, even higher situation occurs, in this case, the excessive situation of voltage drop will occur, loss also can occur increases.Traditional server master board is minimum to be 8 layers, comprising the power delivery layer, and ground plane and signals layer.The mainboard number of plies of 8 layers of structure is many, and cost is high, and in order to realize low source impedance, need to add electric capacity, and in order to solve problem of pressure drop, needing increases capacitance and quantity, thereby causes cost further to increase.In order to realize low source impedance, can increase the area of power delivery layer or spread copper thickness, but the area that increases the power delivery layer need to increase the number of plies of mainboard, also can further increase cost and increase the shop copper thickness, and this also is one of reason of the restriction minimizing mainboard number of plies.
The utility model content
The utility model one of is intended to solve the problems of the technologies described above at least to a certain extent or provides at least a kind of useful commerce to select.For this reason, a purpose of the present utility model is to propose a kind of server master board, and the number of plies of this server master board reduces, and cost is low, in the situation that need not to increase capacitance and the low motional impedance of quantity assurance.
For achieving the above object, the utility model proposes a kind of server master board, described server master board is six layers of structure, and described six layers of structure comprise a power delivery layer, a ground plane and four signals layers, at least one deck in described four signals layers is provided with power transmission line.
Be six layers of structure according to server master board of the present utility model, relatively and eight layers of structure of traditional server mainboard, the space that not only can reduce to take, and can reduce cost.And at least one deck in described four signals layers is provided with described power transmission line, has been equivalent to like this increase at least the described power delivery layer of one deck and the described power delivery layer that will increase is incorporated on the described signals layer.That is to say, also do not increase in the situation of the number of plies of described server master board neither increasing capacitance and quantity, in a disguised form increased area and the thickness of described power delivery layer.In other words, by at least one deck in described four signals layers described power transmission line is set, can realizes low source impedance in the situation that do not increase cost.Therefore, have the number of plies according to the server master board of the utility model embodiment few, cost is low, can be in the situation that do not increase capacitance and quantity guarantees the advantages such as low motional impedance.
In addition, can also have following additional technical characterictic according to server master board of the present utility model:
Two-layer in described four signals layers is provided with described power transmission line.Area and the thickness of described power delivery layer can be further increased thus, thereby source impedance can be further reduced.
Be equipped with power transmission line on described four signals layers.A step increases area and the thickness of described power delivery layer so again, thereby a step is reduced source impedance again.
At least one deck in described four signals layers is provided with ground wire.Can make like this anti-electromagnetic interference capability of described server master board stronger, thereby can make described server master board more stable.
Two-layer in described four signals layers is provided with described ground wire.The anti-electromagnetic interference capability of described server master board can be further strengthened like this, thereby the stability of described server master board can be further improved.
Be equipped with described ground wire on described four signals layers.A step is strengthened the anti-electromagnetic interference capability of described server master board more thus, thereby can one go on foot the stability that improves described server master board again.
Described ground wire is located on the different layers from described power transmission line.Can avoid so described power transmission line and the mutual interference of described ground wire phase.
At least one deck in described four signals layers is provided with HW High Way and/or to the circuit of signal sensitivity, and described power transmission line is located at has described HW High Way and/or on other signals layers outside at least one layer signal layer of the circuit of signal sensitivity.By described HW High Way is set and/or to the circuit of signal sensitivity at described signals layer, can improves in the unit interval number of signals by described signals layer, thereby can improve the transmission speed of signal.Described power transmission line is located at has described HW High Way and/or on other the described signals layers outside the described signals layer of at least one deck of the circuit of signal sensitivity, can avoid so described power transmission line and described HW High Way and/or to the circuit phase mutual interference of signal sensitivity.
Described circuit to the signal sensitivity comprises the voltage-regulation feedback circuit.Can make thus the output voltage of described circuit to the signal sensitivity more stable.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation according to the server master board of the utility model embodiment.
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only be for convenience of description the utility model and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in the terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected with, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under the Second Characteristic and tiltedly, or only represent that the First Characteristic level height is less than Second Characteristic.
Below with reference to the server master board M of Fig. 1 description according to the utility model embodiment.As shown in Figure 1, server master board M is six layers of structure, and described six layers of structure comprise a power delivery layer P, a ground plane G and four signals layer S, and at least one deck among the signals layer S is provided with power transmission line L.Wherein power delivery layer P can be full wafer copper, also can be for being equipped with the circuit board of power transmission line L.
Server master board M according to the utility model embodiment is six layers of structure, relatively and eight layers of structure of traditional server mainboard, and the space that not only can reduce to take, and can reduce cost.And at least one deck among four signals layer S is provided with power transmission line L, has been equivalent to like this increase at least one deck power delivery layer P and the power delivery layer P that increases is incorporated on the signals layer S.That is to say, also do not increase in the situation of the number of plies of server master board M neither increasing capacitance and quantity, covert area and the thickness of source transport layer P that increased electricity.In other words, by at least one deck in four signals layer S power transmission line L is set, can realizes low source impedance in the situation that do not increase cost.Therefore, have the number of plies according to the server master board M of the utility model embodiment few, cost is low, can be in the situation that do not increase capacitance and quantity guarantees the advantages such as low motional impedance.
Need to be, the distributing order of power delivery layer P, the ground plane G shown in Fig. 1 and four signals layer S only is used for explanation the utility model, and can not be interpreted as restriction of the present utility model with understanding.The distributing order of power delivery layer P, ground plane G and four signals layer S can be decided according to the actual requirements.
In an embodiment of the present utility model, can be provided with power transmission line L on two-layer among four signals layer S.Be equivalent to like this increase two-layer power delivery layer P, can further increase thus area and the thickness of power delivery layer P, thereby can further reduce source impedance.
Advantageously, can be equipped with power transmission line L on four signals layer S.A step increases area and the thickness of power delivery layer P so again, thereby a step is reduced source impedance again.
In a concrete example of the present utility model, can be provided with the ground wire (not shown) at least one deck among four signals layer S.Can make like this anti-electromagnetic interference capability of server master board M stronger, thereby can make server master board M more stable.
Advantageously, can be provided with described ground wire on two-layer among four signals layer S.The anti-electromagnetic interference capability of server master board M can be further strengthened like this, thereby the stability of server master board M can be further improved.
More advantageously, all can be provided with described ground wire on four signals layer S.A step is strengthened the anti-electromagnetic interference capability of server master board M more thus, thereby can one go on foot the stability that improves server master board M again.
Alternatively, described ground wire can be located on the different layers from power transmission line L.That is to say, described ground wire and power transmission line L can not be located on the same layer.Can avoid like this power transmission line L and the mutual interference of described ground wire phase.
In an embodiment of the present utility model, can be provided with HW High Way at least one deck among four signals layer S and/or to the circuit (not shown) of signal sensitivity, power transmission line L can be located at has described HW High Way and/or on other signals layers S outside at least one layer signal layer S of the circuit of signal sensitivity.In other words, described HW High Way and/or can be located at least one deck among the four layer signal layer S the circuit of signal sensitivity, power transmission line L can be located at least one deck among the four layer signal layer S, and, power transmission line L and described HW High Way and/or the circuit of signal sensitivity is not located on the same signals layer S.By described HW High Way is set and/or to the circuit of signal sensitivity at signals layer S, can improves in the unit interval number of signals by signals layer S, thereby can improve the transmission speed of signal.Power transmission line L is located at has described HW High Way and/or on other signals layers S outside at least one layer signal layer S of the circuit of signal sensitivity, can avoid like this power transmission line L and described HW High Way and/or to the circuit phase mutual interference of signal sensitivity.
Alternatively, described circuit to the signal sensitivity can comprise voltage-regulation feedback circuit (not shown).Can make thus the output voltage of described circuit to the signal sensitivity more stable.
Have the number of plies according to the server master board M of the utility model embodiment few, cost is low, can be in the situation that do not increase capacitance and quantity guarantees the advantages such as low motional impedance.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiment of the present utility model, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art is not in the situation that break away from principle of the present utility model and aim can change above-described embodiment, modification, replacement and modification in scope of the present utility model.
Claims (9)
1. a server master board is characterized in that, described mainboard is six layers of structure, and described six layers of structure comprise a power delivery layer, a ground plane and four signals layers, and at least one deck in described four signals layers is provided with power transmission line.
2. server master board according to claim 1 is characterized in that, two-layer in described four signals layers is provided with described power transmission line.
3. server master board according to claim 1 is characterized in that, is equipped with power transmission line on described four signals layers.
4. server master board according to claim 1 is characterized in that, at least one deck in described four signals layers is provided with ground wire.
5. server master board according to claim 4 is characterized in that, two-layer in described four signals layers is provided with described ground wire.
6. server master board according to claim 4 is characterized in that, is equipped with described ground wire on described four signals layers.
7. server master board according to claim 4 is characterized in that, described ground wire is located on the different layers from described power transmission line.
8. server master board according to claim 1, it is characterized in that, at least one deck in described four signals layers is provided with HW High Way and/or to the circuit of signal sensitivity, and described power transmission line is located at has described HW High Way and/or on other signals layers outside at least one layer signal layer of the circuit of signal sensitivity.
9. server master board according to claim 8 is characterized in that, described circuit to the signal sensitivity comprises the voltage-regulation feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428917.8U CN202870676U (en) | 2012-08-27 | 2012-08-27 | Server mainboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428917.8U CN202870676U (en) | 2012-08-27 | 2012-08-27 | Server mainboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202870676U true CN202870676U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220428917.8U Expired - Lifetime CN202870676U (en) | 2012-08-27 | 2012-08-27 | Server mainboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202870676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233980A (en) * | 2018-01-18 | 2018-06-29 | 加特兰微电子科技(上海)有限公司 | Radio frequency transmission device |
-
2012
- 2012-08-27 CN CN201220428917.8U patent/CN202870676U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233980A (en) * | 2018-01-18 | 2018-06-29 | 加特兰微电子科技(上海)有限公司 | Radio frequency transmission device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
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| CX01 | Expiry of patent term |