CN202259637U - 20-watt load plate with impedance of 50 Omega and with thin aluminum nitride ceramic substrate - Google Patents
20-watt load plate with impedance of 50 Omega and with thin aluminum nitride ceramic substrate Download PDFInfo
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- CN202259637U CN202259637U CN 201120352035 CN201120352035U CN202259637U CN 202259637 U CN202259637 U CN 202259637U CN 201120352035 CN201120352035 CN 201120352035 CN 201120352035 U CN201120352035 U CN 201120352035U CN 202259637 U CN202259637 U CN 202259637U
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- aluminium nitride
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- aluminum nitride
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Abstract
The utility model discloses a 20-watt load plate with impedance of 50 Omega and with a thin aluminum nitride ceramic substrate, which comprises the aluminum nitride substrate of 5mm multiplied by 2.5mm multiplied by 0.635mm. The front face of the aluminum nitride substrate is printed with a back conductive layer, a resistor and a wire, the wire 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 the resistor is arranged horizontally. Since the thinner aluminum nitride substrate with the thickness of 0.635mm is adopted, the properties of the load plate can meet the demands of practical applications, and more competitive price advantages can be achieved.
Description
Technical field
The utility model relates to a kind of aluminium nitride ceramics substrate carrier sheet, and particularly a kind of impedance is the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω.
Background technology
Aluminium nitride ceramics substrate carrier sheet is because the price of aluminium nitride ceramics substrate accounts for total cost 50%, so its price is high all the time.But in fierce competitive market, price more plays an important role, and the approach that the manufacturer of domestic aluminium nitride ceramics carrier sheet also seeks to reduce unit price in all its bearings enlarges the share that takies in market.
Present state internal power can reach 20 tile load sheets and mainly adopt the thick aluminium nitride substrate of 1mm, and the space that its price descends is also less.Yet on characteristic, be directly proportional with thermal resistance and dielectric strength, when the minimizing substrate thickness reaches the better purpose of thermal diffusivity, will solve the problem of dielectric strength variation as the thickness of the insulating barrier of insulator.
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 carrier sheet that can on the 5*2.5*0.635mm substrate, carry 20W power, and its stationary wave characteristic satisfies market actual production demand.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of impedance is the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω; It comprises the aluminium nitride substrate of a 5*2.5*0.635mm; The front of said aluminium nitride substrate is printed with back of the body conducting shell, and the front of said aluminium nitride 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, said resistance transverse arrangement of turbo.
Preferably, be printed with glass protection film on the said resistance, 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.
Preferably, said substrate is selected 0.635mm aluminium nitride ceramics substrate for use.
Technique scheme has following beneficial effect: this impedance is the specification that the substrate of the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω has adopted 0.635mm; Need not with the consistent 1mm thickness that adopts in the past; Guaranteed product performance and quality and can stably bear the power of 20W; Because the substrate thickness attenuate provides more competitive price, for the reduction of market cost provides help.
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 aluminium nitride substrate 1 that the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω comprise a 5*2.5*0.635mm; The back up of aluminium nitride substrate 1 has back of the body conducting shell, and the front of aluminium nitride substrate is printed with lead 2 and resistance 3, resistance 3 transverse arrangement of turbo. and resistance 3 is connected to form load circuit through lead 2; The earth terminal of load circuit is electrically connected through the silver slurry with back of the body conducting shell, can make load circuit ground connection form the loop like this.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, can form effectively protection to lead 2, resistance 3 and glass protection film 4 like this.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.
This impedance is the specification that the substrate of the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω has adopted 0.635mm; Be not used in the consistent in the past 1mm thickness that adopts; Guaranteed product performance and quality and can stably bear the power of 20W; Because the substrate thickness attenuate provides more competitive price, for the reduction of market cost provides help.
More than a kind of impedance that the utility model embodiment is provided be that the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω 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 (4)
1. an impedance is the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω; It is characterized in that: it comprises the aluminium nitride substrate of a 5*2.5*0.635mm; The front of said aluminium nitride substrate is printed with back of the body conducting shell, and the front of said aluminium nitride 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, said resistance transverse arrangement of turbo.
2. impedance according to claim 1 is the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω, and it is characterized in that: be printed with glass protection film on the said resistance, 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 the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω, 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.
4. impedance according to claim 1 is the slim aluminium nitride ceramics substrate 20 tile load sheets of 50 Ω, and it is characterized in that: the aluminium nitride ceramics substrate is selected the 0.635mm thin base for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120352035 CN202259637U (en) | 2011-09-20 | 2011-09-20 | 20-watt load plate with impedance of 50 Omega and with thin aluminum nitride ceramic substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120352035 CN202259637U (en) | 2011-09-20 | 2011-09-20 | 20-watt load plate with impedance of 50 Omega and with thin aluminum nitride ceramic substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259637U true CN202259637U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120352035 Expired - Fee Related CN202259637U (en) | 2011-09-20 | 2011-09-20 | 20-watt load plate with impedance of 50 Omega and with thin aluminum nitride ceramic substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361142A (en) * | 2011-09-20 | 2012-02-22 | 苏州市新诚氏电子有限公司 | Load sheet (20W) having impedance of 50omega and provided with thin aluminum nitride ceramic substrate |
-
2011
- 2011-09-20 CN CN 201120352035 patent/CN202259637U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361142A (en) * | 2011-09-20 | 2012-02-22 | 苏州市新诚氏电子有限公司 | Load sheet (20W) having impedance of 50omega and provided with thin aluminum nitride ceramic substrate |
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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: 20120530 Termination date: 20120920 |