CN202308245U - 40W aluminum oxide ceramics substrate load sheet with impedance of 50 omega - Google Patents
40W aluminum oxide ceramics substrate load sheet with impedance of 50 omega Download PDFInfo
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- CN202308245U CN202308245U CN 201120335497 CN201120335497U CN202308245U CN 202308245 U CN202308245 U CN 202308245U CN 201120335497 CN201120335497 CN 201120335497 CN 201120335497 U CN201120335497 U CN 201120335497U CN 202308245 U CN202308245 U CN 202308245U
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- aluminum oxide
- oxide ceramics
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Abstract
The utility model discloses a 40W aluminum oxide ceramics substrate load sheet with an impedance of 50 omega, which comprises an aluminum oxide ceramics substrate with a size of 6.35*6.35*1mm, wherein a back conductive layer is printed on the back surface of the aluminum oxide ceramics substrate, a resistor and a lead are printed in the front of the aluminum oxide ceramics substrate, the lead is connected with the resistor to form a load circuit, the grounding end of the load circuit is electrically connected with the back conductive layer, and a glass protective film is printed on the resistor. The 40W aluminum oxide ceramics substrate load sheet with the impedance of 50 omega is further optimized on the basis of the design scheme of original 30W, thus the area of the resistor is enlarged, so that the maximum power reaches 40W, better VSWR (Voltage Standing Wave Ratio) standing-wave ratio expression is obtained. The 40W aluminum oxide ceramics substrate load sheet meets the special requirement of special specifications of markets with great competitiveness, and provides a chance of replacing the application of a small-power aluminum oxide ceramics substrate load sheet in the markets at lower prince in special fields, thereby having a wider application range.
Description
Technical field
The utility model relates to a kind of aluminium oxide ceramic substrate carrier sheet, and particularly a kind of impedance is 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets.
Background technology
Prevailing in the market aluminium oxide ceramics carrier sheet is cheap, is mainly used in the production of consumer industry low-power (less than 1 watt) plate resistor.Aluminium oxide aluminium oxide ceramics and aluminium nitride ceramics compare, and its conductive coefficient has only about 1/4th of aluminium nitride ceramics, so its thermal conductivity is poor, based on this specific character of aluminum oxide substrate, its application on the high power load sheet has obtained restriction.Then be mainly used at present main better aluminium nitride substrate of heat radiation or the poisonous beryllium oxide ceramics of adopting of the powerful carrier sheet of the communications industry as substrate, and the price of these two kinds of ceramic substrates is about 10 times of aluminium oxide ceramic substrate, in addition higher.
Yet based on the increase day by day of production cost, market demand has should satisfy power, performance requirement, and cheap again product occurs.
The utility model content
To the deficiency of above-mentioned prior art, the technical problem that the utility model will solve provides a kind of cheap again, and can bear the power of 40W, is of a size of 6.35*6.35*1mm, and performance can reach the aluminium oxide ceramic substrate carrier sheet of market instructions for use
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of impedance is 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets; It comprises that one is of a size of the aluminum oxide substrate of 6.35*6.35*1mm; The back up of said aluminum oxide substrate has back of the body conducting shell, and the front of said aluminum oxide substrate is printed with resistance and lead, and said lead connects said resistance and forms load circuit; The earth terminal of said load circuit is electrically connected with said back of the body conducting shell, is printed with glass protection film on the said resistance.
Preferably, the upper surface of said lead and glass protection film also is printed with one deck black protective film.
Preferably, said back of the body conducting shell and lead are formed by the conductive silver paste printing, and said resistance is formed by the resistance slurry printing.
Technique scheme has following beneficial effect: the impedance of this structure is that 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets have good VSWR performance; Power on the aluminium oxide ceramic substrate of 6.35*6.35*1mm reaches 40W; Because adopted aluminium oxide ceramics as substrate; Greatly reduce cost, very large competitive advantage is arranged on price, more can in some scope, replace the application of present small-power aluminium nitride substrate carrier sheet; When satisfying performance requirement, greatly reduce cost.
Above-mentioned explanation only is the general introduction of the utility model technical scheme, in order more to know the technological means of understanding the utility model, and can implement according to the content of specification, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.The embodiment of the utility model is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Describe in detail below in conjunction with the preferred embodiment of accompanying drawing to the utility model.
As shown in Figure 1; This impedance is the aluminum oxide substrate 1 that 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets comprise a 6.35*6.35*1mm; The back up of aluminum oxide substrate 1 has back of the body conducting shell, and the front of aluminum oxide substrate 1 is printed with resistance 3 and lead 2, and lead 2 connects resistance 3 and forms load circuit; The earth terminal of load circuit is electrically connected through the silver slurry with back of the body conducting shell, thereby makes the load circuit earth-continuity.Back of the body conducting shell and lead 2 are formed by the conductive silver paste printing, and resistance 3 is formed by the resistance slurry printing.Be printed with glass protection film 4 on the resistance 3, the upper surface of lead 2 and glass protection film 4 also is printed with one deck black protective film 5.
The impedance of this structure is that 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets have good VSWR performance; Power on the aluminium oxide ceramic substrate of 6.35*6.35*1mm reaches 40W, because adopted aluminium oxide ceramics as substrate, greatly reduces cost; Very large competitive advantage is arranged on price; More can in some scope, replace the application of present small-power aluminium nitride substrate carrier sheet, when satisfying performance requirement, greatly reduce cost.
More than a kind of impedance that the utility model embodiment is provided be that 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets have carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the utility model embodiment, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as the restriction to the utility model, and all any changes of being made according to the utility model design philosophy are all within the protection range of the utility model.
Claims (3)
1. an impedance is 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets; It is characterized in that: it comprises that one is of a size of the aluminum oxide substrate of 6.35*6.35*1mm; The back up of said aluminum oxide substrate has back of the body conducting shell, and the front of said aluminum oxide substrate is printed with resistance and lead, and said lead connects said resistance and forms load circuit; The earth terminal of said load circuit is electrically connected with said back of the body conducting shell, is printed with glass protection film on the said resistance.
2. impedance according to claim 1 is 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets, and it is characterized in that: the upper surface of said lead and glass protection film also is printed with one deck black protective film.
3. impedance according to claim 1 is 50 Ω aluminium oxide ceramic substrates, 40 tile load sheets, and it is characterized in that: said back of the body conducting shell and lead are formed by the conductive silver paste printing, and said resistance is formed by the resistance slurry printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120335497 CN202308245U (en) | 2011-09-08 | 2011-09-08 | 40W aluminum oxide ceramics substrate load sheet with impedance of 50 omega |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120335497 CN202308245U (en) | 2011-09-08 | 2011-09-08 | 40W aluminum oxide ceramics substrate load sheet with impedance of 50 omega |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202308245U true CN202308245U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120335497 Expired - Fee Related CN202308245U (en) | 2011-09-08 | 2011-09-08 | 40W aluminum oxide ceramics substrate load sheet with impedance of 50 omega |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202308245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361126A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 40W loading piece of aluminium oxide ceramic substrate with impedance being 50 omega |
-
2011
- 2011-09-08 CN CN 201120335497 patent/CN202308245U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361126A (en) * | 2011-09-08 | 2012-02-22 | 苏州市新诚氏电子有限公司 | 40W loading piece of aluminium oxide ceramic substrate with impedance being 50 omega |
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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: 20120704 Termination date: 20120908 |