CN103022664B - Three-dimensional antenna manufacture method - Google Patents
Three-dimensional antenna manufacture method Download PDFInfo
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- CN103022664B CN103022664B CN201210553330.4A CN201210553330A CN103022664B CN 103022664 B CN103022664 B CN 103022664B CN 201210553330 A CN201210553330 A CN 201210553330A CN 103022664 B CN103022664 B CN 103022664B
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Abstract
The invention provides a kind of three-dimensional antenna manufacture method, catalytic ink is printed on antenna carrier and forms antenna pattern by this three-dimensional antenna manufacture method, then make catalytic ink and copper sulphate react and form conductive layer, and then electroplate on the electrically conductive, so just can form three-dimensional antenna on antenna carrier.This three-dimensional antenna manufacturing approach craft is simple, low cost of manufacture, and the three-dimensional antenna impedance of making is low, effectively can meet the designing requirement of existing mobile terminal.
Description
Technical field
The present invention relates to mobile communication equipment and manufacture field, particularly a kind of manufacture method of three-dimensional antenna on mobile terminal.
Background technology
The appearance of the universal and forth generation mobile phone of third generation mobile, mobile terminal needs increasing antenna, such as PS antenna, main antenna, Wifi antenna, NFC antenna etc., to receive the signal of different frequency, for mobile payment phone, sometimes need the antenna of nearly six kinds or more could meet the requirement of various signal.And lightening trend pursued by mobile phone, most of antenna is all integrated on casing, in order to avoid the interference that aerial signal causes, antenna will separate enough distances as far as possible, therefore some antennas is needed to be distributed in the marginal position of casing, due to the scrambling of these positions, this brings huge challenge to the making of antenna, and this antenna formed in irregular solid space also claims three-dimensional antenna.The method of current making three-dimensional antenna has several as follows:
Laser direct structuring technique (LaserDirectStructuring, LDS), with plastic rubber material (being generally PC+ABS with the palladium ion) injection mo(u)lding with particulate metal ion (palladium), with the metal ion activation of antenna area that 3D laser machine will design, and then form antenna circuit through the metal such as total price copper facing, nickel that the method for chemical plating activates, feedback point is gold-plated just can be anti-oxidation with nickel, this method needs the fixed investment of high Laser machine stand, and using the palladium metal of high price, its technical process is also comparatively complicated in addition.
Transfer printing (TapPrinting), hand set machine shell surface is transferred to being filled in the framed interior conductive silver paste of plane by Rubber end, this method technique is simple, three-dimensional antenna can be formed, but because the resistivity of silver slurry is relatively large, bat printing 3-6 time is repeated, just can reach the low resistance requirement of antenna, so greatly reduce productivity ratio, and the reduction of rate of finished products may be caused.
Flex circuit antenna mounts, and first this method makes antenna by the method for etching on fexible film (being generally PI), is pasted onto casing surface after then antenna being cut; Have also appeared a kind of coinjection moulding method recently, can the material of chemical plating be molded on casing simultaneously, then by activation, then chemical plating forms antenna circuit.
From analyzing above, the method manufacturing three-dimensional antenna at present all also exists the shortcoming of material expensive, manufacturing process complexity, and make the production efficiency of three-dimensional antenna relatively low, cost is higher.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of low cost of manufacture, technique simple, can realize the three-dimensional antenna manufacture method of low-frequency signals antenna Low ESR requirement.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of three-dimensional antenna manufacture method, it comprises the steps:
1) according to the shape need of antenna pattern, catalytic ink is printed on the assigned address of antenna carrier;
2) baking being carried out in antenna carrier placement in an oven makes catalytic ink solidify;
3) dried antenna carrier is placed in copper-bath, catalytic ink and copper-bath are reacted, thus form conductive layer on catalytic ink surface;
4) galvanoplastic are adopted to plate conducting metal on the conductive layer surface of catalytic ink
Preferably, step 4) complete after, at electrically-conducting metal surface sprayed protection paint, contact feedback point in painting process, should be left, gold-plated on contact feedback point.
Preferably, step 4) in, at catalytic ink electro-coppering successively, nickel, zinc, gold on the surface.
Preferably, step 3) in concentration of copper sulfate be 5%-25%.
Preferably, step 3) in concentration of copper sulfate be 15%.
Preferably, step 2) in, card case baking temperature is 130-140 °, and baking time is 10-90 minute.
Preferably, step 2) in, card case baking temperature is 140 °, and baking time is 30 minutes.
As mentioned above, three-dimensional antenna manufacture method of the present invention has following beneficial effect: catalytic ink is printed on antenna carrier and forms antenna pattern by this three-dimensional antenna manufacture method, then make catalytic ink and copper sulphate react and form conductive layer, and then electroplate on the electrically conductive, so just can form three-dimensional antenna on antenna carrier.This three-dimensional antenna manufacturing approach craft is simple, low cost of manufacture, and the three-dimensional antenna impedance of making is low, effectively can meet the designing requirement of existing mobile terminal.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of antenna pattern.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, so only show the assembly relevant with the present invention in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
The invention provides a kind of three-dimensional antenna manufacture method, the method comprises the steps: first catalytic ink to be stirred in the ring cup of loading pad printer, tip upside down in template, then load onto pad printer, this catalytic ink raw material components comprises by weight percentage: iron 60 weight portion, phenoxy resin 8 weight portion, butanone 6 weight portion, α terpinol 8 weight portion, butyl carbitol acetate 13 weight portion, reducing agent 5 weight portion.
Then the hand set machine shell as antenna carrier is placed on the platform of pad printer, according to the shape of the antenna pattern that will design, set suitable bat printing speed to pad printer, glue head moves the upper limit and the technological parameter such as lower limit, glue head shift motion, assigned address catalytic ink being printed on hand set machine shell forms antenna pattern.As shown in Figure 1, the live width of antenna pattern is 1 millimeter, and line length is 600 millimeters.
Then be placed in baking box by the hand set machine shell being printed on antenna pattern and toast, baking temperature is 130-140 °, and baking time is 10-90 minute.As a kind of optimal way, baking temperature can be arranged on 140 °, and baking time is arranged on 30 minutes, hand set machine shell can be avoided under this curing environment to be out of shape because of baking, can make catalytic ink flash baking again, simultaneously under this curing environment, the catalytic ink impedance after oven dry is minimum.
After catalytic ink is dried, dried antenna carrier being placed on concentration is in the copper-bath of 5%-25%, and catalytic ink and copper-bath are reacted, because catalytic ink itself does not have conductivity, and electricalresistivityρ > 2 × 10
8Ω cm, after catalytic ink after solidification immerses copper-bath, the electrode potential of the copper ion in copper-bath is greater than the electrode potential of metal in catalytic ink, therefore the metal in catalytic ink can the reducing metal ions in displacement reaction solution, and be attached to catalytic ink surface, thus form conductive layer on catalytic ink surface.As a kind of optimal way, copper-bath can select concentration be 15% copper-bath.
Then galvanoplastic conducting metal on the conductive layer surface of catalytic ink is adopted; in order to reduce the impedance of antenna; can the metal material such as electro-coppering on the conductive layer surface of catalytic ink, nickel, zinc, gold successively; after having electroplated; in order to play better protective effect to antenna, can on metal coating surface sprayed protection paint, should stay in painting process contact feedback point; and gold-plated on contact feedback point, the three-dimensional antenna like this on this hand set machine shell can manufacture.
After testing, the three-dimensional antenna resistance value adopting the method manufacture is 0.55 ohm, much smaller than being starched the 25-40 ohm (Yin Jiang Baidu 5 microns) making three-dimensional antenna by silver, adopt this three-dimensional antenna manufacture method can effectively reduce the resistance value of three-dimensional antenna as can be seen here.
Catalytic ink is printed on antenna carrier and forms antenna pattern by this three-dimensional antenna manufacture method, then makes catalytic ink and copper sulphate react and forms conductive layer, and then electroplate on the electrically conductive, so just can form three-dimensional antenna on antenna carrier.This three-dimensional antenna manufacturing approach craft is simple, low cost of manufacture, and the three-dimensional antenna impedance of making is low, effectively can meet the designing requirement of existing mobile terminal.In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (5)
1. a three-dimensional antenna manufacture method, is characterized in that, it comprises the steps:
1) according to the shape need of antenna pattern, catalytic ink is printed on the assigned address of antenna carrier, this catalytic ink raw material components comprises by weight percentage: iron 60 weight portion, phenoxy resin 8 weight portion, butanone 6 weight portion, α terpinol 8 weight portion, butyl carbitol acetate 13 weight portion, reducing agent 5 weight portion;
2) baking being carried out in antenna carrier placement in an oven makes catalytic ink solidify, and oven cooking cycle temperature is 140 °, and baking time is 30 minutes;
3) dried antenna carrier is placed in copper-bath, catalytic ink and copper-bath are reacted, thus form conductive layer on catalytic ink surface;
4) galvanoplastic are adopted to plate conducting metal on the conductive layer surface of catalytic ink.
2. three-dimensional antenna manufacture method according to claim 1, is characterized in that: step 4) complete after, at electrically-conducting metal surface sprayed protection paint, should stay in painting process contact feedback point, contact feedback point on gold-plated.
3. three-dimensional antenna manufacture method according to claim 1, is characterized in that: step 4) in, at catalytic ink electro-coppering successively, nickel, zinc, gold on the surface.
4. three-dimensional antenna manufacture method according to claim 1, is characterized in that: step 3) in concentration of copper sulfate be 5%-25%.
5. three-dimensional antenna manufacture method according to claim 4, is characterized in that: step 3) in concentration of copper sulfate be 15%.
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CN201210553330.4A CN103022664B (en) | 2012-12-19 | 2012-12-19 | Three-dimensional antenna manufacture method |
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CN103022664B true CN103022664B (en) | 2015-12-02 |
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CN108607835A (en) * | 2018-04-26 | 2018-10-02 | 常州信息职业技术学院 | A kind of photovoltaic system and its working method with self-cleaning function |
CN108632649A (en) * | 2018-04-26 | 2018-10-09 | 常州信息职业技术学院 | A kind of network machine top box and its working method |
Citations (2)
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CN102025020A (en) * | 2009-09-18 | 2011-04-20 | 上海莫仕连接器有限公司 | Modular antenna apparatus |
CN102573313A (en) * | 2012-02-13 | 2012-07-11 | 苏州晶讯科技股份有限公司 | Method for utilizing base metal catalytic ink to manufacture printed circuit |
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CA2224236A1 (en) * | 1995-10-07 | 1997-04-17 | Img Group Limited | An electrical circuit component formed of a conductive liquid printed directly onto a substrate |
KR20090051633A (en) * | 2007-11-19 | 2009-05-22 | 이비엔코리아 주식회사 | Internal antenna, method of manufacturing same, and mobile communication terminal having same |
CN101494316A (en) * | 2008-01-21 | 2009-07-29 | 何珊珊 | Wireless radio frequency antenna and production method thereof |
CN102071423B (en) * | 2009-12-30 | 2012-01-04 | 比亚迪股份有限公司 | Preparation method of plastic product and plastic product |
CN201985236U (en) * | 2010-12-15 | 2011-09-21 | 上海安费诺永亿通讯电子有限公司 | Flexible circuit board antenna |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN102025020A (en) * | 2009-09-18 | 2011-04-20 | 上海莫仕连接器有限公司 | Modular antenna apparatus |
CN102573313A (en) * | 2012-02-13 | 2012-07-11 | 苏州晶讯科技股份有限公司 | Method for utilizing base metal catalytic ink to manufacture printed circuit |
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Address after: 578-1 Yanxin Road, Wuxi Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Wuxi lanpei New Material Technology Co., Ltd Address before: Songjiang District Minyi road 201262 Shanghai City No. 201 building 12 Room 401 Patentee before: SHANGHAI LANPEI NEW MATERIAL TECHNOLOGY Co.,Ltd. |