Color Cotton: Solar mobile phone onto the market, thanks to solar cells and packaging technology integration

Solar mobile phone onto the market, thanks to solar cells and packaging technology integration

Following KDDI, Softbank Mobile after, NTT DoCoMo also shows that to be listed with the solar cell phone. These phones are Sharp and development of solar cell modules. Sharp LSI package with use of packaging technology and other fields, the solar battery module thickness reduced to approximately 800um, so that it is equipped on a mobile phone possible. It can be said for the installation of solar cell technology has opened up new areas.

Mobile phones equipped with solar battery module by 10 12.5mm x 18.75mm of solar modules. 10 units in series, each unit electrode surface wire bonding, the back electrodes connected to the printed adhesive Plaster on the floor. Among them, the low-bending, high-density wire bonding technology, thin modules contributed.

Module manufacturing process, solar cell manufacturing processes before the Division as the solar systems business. The same cell line and manufacturing process of household, about 15cm square formed on the wafer 96 (12 x 8) 12.5mm x 18.75mm cell pattern.

Then, the electronic components business of this Part re-use CSP (Chip Size Package) technology, the cutting unit on the floor and in the print settings, the implementation of wire bonding, and optical devices used in a transparent resin package. CSP technology in addition to its use of low curvature of wire bonding technology, the chip also includes the thin slab and thin package printing technology, the chip contains multiple pieces of one large floor molding technology. In addition, cutting and welding equipment used for manufacturing LSI can be directly used without special improvements.

During the problem is, a variety of materials caused by the thermal expansion coefficient between the module warpage. Compared with the LSI package, due to the larger, thus warping is relatively large. While Sharp did not disclose details, but you can clear that by optimizing the process and so on, to solve the warping problem.

In the future, Sharp ready for the relentless pursuit of smaller, thinner portable products, and further realize the thin solar cell modules. This may still need help installing the power of technology. This trend echoes with the installation of the firms have also given attention to the field of solar cells. Held in June 2009 solar event "PVJapan" on, NOK reference to display a transparent flexible substrate. Through the use of packaging technology, solar cell to achieve a new evolution.

Yingli invest 60 billion to build the largest crystalline silicon solar cell project

It is understood that the total project investment of 60 billion yuan, annual output of 800 MW of crystalline silicon solar cells, put into operation in December 2010. By then, Yingli crystalline silicon solar cell production capacity of 1,400 MW projects, the sales income of 150 billion yuan, profits of 2.7 billion.

Yingli Group was established in 1987, is a new energy-based industry, international business group, the energy, technology, trade, finance, real estate and other industries. In the world including the United States, Germany and other countries, the company or factory, in China Beijing, Shanghai, Chengdu, Tibet, Lanzhou, Guangzhou, Hainan, and other offices and factories.

Currently, Yingli has from silicon, silicon ingots, wafers, cells, components, system applications, "the world's most complete industry chain", with the lowest cost non-silicon, low silicon consumption per watt advantages of technological innovation. The construction of four 800 MW is Yingli Group in the current global financial crisis, background, contrarian, for enhancing the PV industry in China the right to speak in the international market plays an important role.

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