CN104241783A - Small-size 20 W loading piece of aluminum nitride ceramic substrate - Google Patents
Small-size 20 W loading piece of aluminum nitride ceramic substrate Download PDFInfo
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- CN104241783A CN104241783A CN201410235496.0A CN201410235496A CN104241783A CN 104241783 A CN104241783 A CN 104241783A CN 201410235496 A CN201410235496 A CN 201410235496A CN 104241783 A CN104241783 A CN 104241783A
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- aluminum nitride
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Abstract
The invention discloses a small-size 20 W loading piece of an aluminum nitride ceramic substrate. The small-size 20 W loading piece comprises the aluminum nitride substrate with the size of 1.5 mm *3 mm *0.625 mm, a back conductive layer is printed on the back face of the aluminum nitride substrate, a resistor and a wire are printed on the front face of the aluminum nitride substrate, the wire is connected with the resistor to form a loading circuit, the grounding end of the loading circuit is electrically connected with the back conductive layer, and a high-temperature protective layer is printed on the resistor. The small-size 20 W loading piece of the aluminum nitride ceramic substrate is high in VSWR performance, the power of the loading piece on the aluminum nitride substrate with the size of 1.5 mm *3 mm *0.625 mm reaches 20 W, the characteristic of the aluminum nitride substrate reaches 3 G, and the blank of small-size 20 W loading pieces of the aluminum nitride ceramic substrate in China is filled in.
Description
Technical field
The present invention relates to a kind of aluminum nitride ceramic substrate carrier sheet, particularly a kind of small size nitrogen aluminium ceramic substrate 20 watt loading sheet.
Background technology
Aluminum nitride ceramic substrate carrier sheet is mainly used in absorbing the power of oppositely input in communication component in communication base station, if can not bear the power of requirement, load will burn out, and whole equipment may be caused to burn out.Current most of communication base station is all that utilizing high power ceramic load sheet is to absorb reverse input power in communication component, require that basic size is more and more less, and need the power of absorption increasing, the characteristic of product i.e. VSWR (standing-wave ratio) the smaller the better, within market value basis demand fulfillment 1.25:1. along with increasing of frequency range, the VSWR of product also will be higher. and carrier sheet VSWR domestic at present reaches requirement within 3G, minority is had to reach 3G, but along with the continuous development of communication network, more and more higher to the requirement of frequency range, so size is less, the frequency range that can reach is higher, the direction of development.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of power that can bear 20W, and standing wave needs the small-size aluminum nitride ceramic substrate carrier sheet that can meet current 3G demand.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of small-size aluminum nitride ceramic substrate 20 watt loading sheet; it comprises the aluminium nitride substrate that is of a size of 1.5*3*0.635mm; the back up of described aluminium nitride substrate has back of the body conducting shell; the front of described aluminium nitride substrate is printed with resistance and wire; described wire connects described resistance and forms load circuit; the earth terminal of described load circuit is electrically connected with described back of the body conducting shell, described resistance is printed with high temperature protection film.
Preferably, the upper surface of described wire and glass protection film is also printed with one deck resistance to chemical attack diaphragm.
Preferably, described back of the body conducting shell and wire are formed by conductive silver paste printing, and described resistance is formed by resistance slurry printing.
Technique scheme has following beneficial effect: small-size aluminum nitride ceramic substrate 20 watt loading sheet of this structure has good VSWR performance, power on the aluminum nitride ceramic substrate being of a size of 1.5*3*0.635mm reaches 20W, make its characteristic reach 3G simultaneously, meet market size little, cost is low, the requirement that characteristic is good, has filled up the blank on this small-size aluminum nitride ceramic substrate 20 watt loading sheet domestic, also more can carry out good mating with equipment.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, this small-size aluminum nitride ceramic substrate 20 watt loading sheet comprises the aluminium nitride substrate 1 that is of a size of 1.5*3*0.635mm, the back up of aluminium nitride substrate 1 has back of the body conducting shell, the front of aluminium nitride substrate 1 is printed with resistance 3 and wire 2, wire 2 contact resistance 3 forms load circuit, the earth terminal of load circuit is connected by silver-colored slurry with back of the body conducting shell, thus makes load circuit earth-continuity.Back of the body conducting shell and wire 2 are formed by conductive silver paste printing, and resistance 3 is formed by resistance slurry printing.Resistance 3 is printed with high temperature protection film 4.The upper surface of wire 2 and glass protection film 4 is also printed with one deck resistance to chemical attack diaphragm 5.
Small-size aluminum nitride ceramic substrate 20 watt loading sheet of this structure has good VSWR performance, power on the aluminum nitride ceramic substrate being of a size of 1.5*3*0.635mm reaches 20W, make its characteristic reach 3G simultaneously, meet market size little, cost is low, the requirement that characteristic is good, has filled up the blank on this small-size aluminum nitride ceramic substrate 20 watt loading sheet domestic, also more can carry out good mating with equipment.
Above a kind of small-size aluminum nitride ceramic substrate 20 watt loading sheet that the embodiment of the present invention provides is described in detail; for one of ordinary skill in the art; according to the thought of the embodiment of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as limitation of the present invention, and all any changes made according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (3)
1. small-size aluminum nitride ceramic substrate 20 watt loading sheet; it is characterized in that: it comprises the aluminium nitride substrate that is of a size of 1.5*3*0.635mm; the back up of described aluminium nitride substrate has back of the body conducting shell; the front of described aluminium nitride substrate is printed with resistance and wire; described wire connects described resistance and forms load circuit; the earth terminal of described load circuit is electrically connected with described back of the body conducting shell, described resistance is printed with high temperature protection film.
2. small-size aluminum nitride ceramic substrate 20 watt loading sheet according to claim 1, is characterized in that: the upper surface of described wire and glass protection film is also printed with one deck resistance to chemical attack diaphragm.
3. small-size aluminum nitride ceramic substrate 20 watt loading sheet according to claim 1, is characterized in that: described back of the body conducting shell and wire are formed by conductive silver paste printing, and described resistance is formed by resistance slurry printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235496.0A CN104241783A (en) | 2014-05-29 | 2014-05-29 | Small-size 20 W loading piece of aluminum nitride ceramic substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235496.0A CN104241783A (en) | 2014-05-29 | 2014-05-29 | Small-size 20 W loading piece of aluminum nitride ceramic substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104241783A true CN104241783A (en) | 2014-12-24 |
Family
ID=52229435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410235496.0A Pending CN104241783A (en) | 2014-05-29 | 2014-05-29 | Small-size 20 W loading piece of aluminum nitride ceramic substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104241783A (en) |
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2014
- 2014-05-29 CN CN201410235496.0A patent/CN104241783A/en active Pending
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |
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| WD01 | Invention patent application deemed withdrawn after publication |