In the search to cut the costs of manufacturing LEDs, switching to large diameter (6-8-in, 150-200-mm) substrates is often brought up as a key solution. Such a transition has been slow to happen due to both technical and logistical challenges.
It is a lucky thing that the solar LED lights have benefited from this a lot and taken a great progress no matter it is in the domestic market or overseas market. Because the demand for large diameter should be very high, it has often been cited as a fundamental cost saver to drive down LED chip prices. as long as the prices of LED chips decreased, the total prices of LEDs are sure to lower down. Therefore, the intension that more and more common people will experience the convenience of solar LED lights is no longer a dream.
Solar is a new energy, which long time ago, it is only available among the rich people, now, with the cheaper and cheaper prices, in the near future, solar LED lights are widely used on gardens’ decorations, street lighting, hotels beauty and buildings directions, for the reason that the solar saves larger energy, as well as money.
To consider several other factors to get a true picture of the benefit of more LED chips, exclusion zone, LED chip shape and size, and MOCVD reactor layout are main factors that will affect the directions that LEDs headed to.
However, as a percentage of the total wafer surface area, the large wafers have a smaller proportion of their area in exclusion zones.
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