Tao Tao is interviewed Booth area Microwave PCB Microwave PCB Microwave PCB,Microwave Frequency PCB,Bare Copper Microwave PCB,High Frequency PCB Storm Circuit Technology Ltd , https://www.stormpcb.com
At the 2014 High-tech LED exhibition site, the Puwan Optoelectronics booth was in front of the crowd. The general manager of Puwan Optoelectronics, Tao Tao, also interviewed the media, and also focused on the characteristics of the new plastic-coated aluminum radiator to the audience who came to his booth.
“The plastic aluminum radiator can use aluminum to quickly conduct heat, and the plastic can quickly adapt to the heat dissipation characteristics, which can fully combine the advantages of the two in heat dissipation,†said Tao Tao, general manager of Puwan Optoelectronics.
It is reported that the heat-dissipating material of this aluminum-wrapped plastic is the hot-packed aluminum-clad heat-dissipating material that is currently being fired. In recent years, Puwan Optoelectronics has focused on the R&D and production of plastic-coated aluminum heat-dissipating materials, and has achieved very good results. At present, it has applied for invention patents (patent number is 3.3).
“This kind of plastic-coated aluminum heat-dissipating material has been greatly improved in various properties.†Tao Tao mentioned that the first is the high transmittance of the lampshade, which can achieve more than 90%. Secondly, the thermal conductivity of the radiator can reach 5.0 or more; again, good insulation, high pressure resistance up to 4000 volts or more; finally, high temperature resistance up to 120 °C. 
In addition, Tao Tao also said that the series of plastic-coated aluminum heat-dissipating materials introduced by Puwan Optoelectronics can completely replace the metal-aluminum casing, and at the same time, it is safe, beautiful, light and light, effectively achieving high efficiency and low energy consumption, achieving energy saving and environmental protection effects. . Therefore, it can be seen from the exhibition site that this product has been well received by many on-site buyers. We can also expect that the market prospect of this plastic-coated aluminum radiator will be very clear. 
microwave PCB`s is a type of PCB designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). These frequency ranges are used for communication signals in everything from cellphones to military radars. The materials used to construct these PCB`s are advanced composites with very specific characteristics for dielectric constant (Er), loss tangent, and CTE (co-efficient of thermal expansion).
High frequency circuit materials with a low stable Er and loss tangent allow for high speed signals to travel through the PCB with less impedance than standard FR-4 PCB materials. These materials can be mixed in the same Stack-Up for optimal performance and economics.
The advantages of using materials with a low X, Y and Z CTE is a resulting PCB structure that will remain extremely stable in high temperature environments while operating at up to 40 GHz in analog applications. This allows for the effective placement of very fine pitch components including, in some cases, bare die-attach. Additionally, the low CTE materials will facilitate the alignment of multiple layers and the features they represent in a complex PCB Layout.
Features
.CTEr = +40/+50 ppm per °C (low); Tg (glass transition temperature) is 280°C
.ER = 3.38/3.48 at 10.0 GHz
.ER is constant to 40.0 GHz
.ED (electro-deposited) copper only
.Layer-to-layer thickness control = +/- 0.001
.Fabrication costs are typical to slightly increased
Puwan Optoelectronics: 2014 high-tech LED lighting exhibition plastic package aluminum radiator is popular with on-site buyers
[Text|High-tech LED reporter Xu Chaopeng] From metal to ceramics, then ceramics to plastics, the choice of heat-dissipating materials in the LED industry has never been questionable and controversial. Nowadays, with the continuous innovation of LED heat dissipation technology and strict control of the cost of LED lamps, new heat-dissipating materials including heat-conductive plastics and plastic-clad aluminum are also being discovered.