LED Substrates
As a professional sapphire wafermanufacturer, CRYSCORE can provide standard or optical sapphirewafers with any orientation applied to epitaxy, as well as sapphire windows with any specifications applied to optics. Patterned sapphire substrates and sapphire ingots also can be provided. Expert in sapphire optics manufacturing.
LED SUBSTRATES
LED remains the dominant sapphire application. LED sapphiresubstrates are ideal for use in LED applications due to high-temperature resistance, high strength, good electrical insulation, and low dielectric loss. LED sapphire substratein LED lighting helps prevent stray currents caused by radiation from spreading to nearby circuit elements. Its crystal structure also allows LED lights to have a wider beam angle.
The Development of Wafers in the Led Industry
In the past, 2 to 4-inch sized wafers were commonplace, but there has been a recent transition towards 6 to 8-inch wafers. Larger sized LED sapphire waferallows manufactures to incorporate more LED chips along the outside edge, increasing the brightness of the LEDs. The use of patterned sapphire substrate (PSS) can further increase brightness due to the reduction in density of the GaN layer and enhancement of light extraction efficiency. With the penetration rate for LED-based general lighting continuing to rise, large-sized PSS will become necessary to meet the demands of the rapidly growing lighting market.
As the sapphire substrate for LEDis still a key building block for LEDs, general lighting is expected to continue providing solid demand for substrate material from the LED industry in the following years.
LED (Light Emitting Diode) has been widely regarded as the main lighting tool of the next generation. Compared with the incandescent lamps currently used, LEDs have the advantages of long life, energy-saving, and safety. The preparation of blue LEDs needs to rely on GaN films. There are many substrate materials used for growing GaN films, such as sapphire and SiC are the most commonly used.
LED Substrates
In recent years, sapphire has become the best and most commonly used substrate material, because of its small lattice mismatch coefficient with GaN and good light transmission. The lattices of the single-crystal sapphire substrate and GaN can match each other, and sapphire has good high-temperature stability and mechanical properties which can meet the requirements of high-temperature resistance during the growth of GaN film.
Moreover, a single-crystal sapphire substrate has better light transmission in the visible range. In addition, there is more research regarding GaN film on sapphire, the production technology of GaN on sapphire is relatively mature and the price is relatively cheap, so single-crystal sapphire has become the key substrate material for making white, blue, green, and blue-green GaN substrates.
Factors Must Be Considered when Evaluating Substrate Materials
在线联系供应商
Other supplier products
M-PLANE (10-10) SAPPHIRE WAFERS | Due to its application prospects in solar-blind ultraviolet detection, MgZnO alloy semiconductor films with suitable band gaps have attracted more ... | |
CUSTOM SAPPHIRE WINDOWS | Due to the extensive applications of sapphire in various fields, different dimensions are required. CRYSCORE can provide custom sapphire windowswi... | |
A-PLANE (11-20) SAPPHIRE WAFERS | A-PLANE (11-20) SAPPHIRE WAFERS A plane sapphire wafershave a uniform dielectric constant and highly insulating characteristic, so they are genera... | |
8 INCH C-PLANE(0001) SAPPHIRE WAFERS | The 8-inch sapphire waferscan enable chip makers to roll out more productivity, which will help them drive down costs dramatically. CRYSCORE is ... | |
4 INCH C-PLANE(0001) SAPPHIRE WAFERS | Wafer saphiris being used extensively as a substrate for III-V nitrides and for many other epitaxial films. We supply 99.999% high purity c axis sa... |
Same products
Outer rotor axial flow fan with diameter 200-800 | 卖方: Hangzhou Chaotuo Electric Automation Co., Ltd. | Compact structure, easy installation, reliable operation, low noise, high efficiency, and energy ... | |
DM-16BF DM-18BF New cover Electric Sprayer | 卖方: Zhejiang Huaqi Information Technology Co., LTD | The Electric Knapsack Sprayer is a game-changer in the field of agricultural pest control. Engine... | |
Simple Round Breeding Cage | 卖方: Zhejiang Huaqi Information Technology Co., LTD | The Simple Round Breeding Cage features a durable and lightweight construction, making it suitabl... | |
叙利亚-细胞储存液氮容器-液氮液位报警器 | 卖方: 河南天之道生物科技有限公司 | 精准的实验条件与安全的样本存储是科研工作顺利开展的关键要素。其中,细胞储存液氮罐作为实验室不可缺少的一种设备,在样本保存方面发挥着重要的作用。 实验室用的细胞储存液氮罐,航空铝制造,重量轻、占用... | |
意大利-液氮细胞储存罐-液氮罐液位报警器 | 卖方: 河南天驰仪器设备有限公司 | 精准的实验条件与安全的样本存储是科研工作顺利开展的关键要素。其中,细胞储存液氮罐作为实验室不可缺少的一种设备,在样本保存方面发挥着重要的作用。 实验室用的细胞储存液氮罐,航空铝制造,重量轻、占用... |