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
SAPPHIRE WAFERS / SAPPHIRE SUBSTRATES | Due to the less mismatched lattice and stable chemical and physical properties, sapphire(Al2O3) wafer is the popular substrates for III-V nitrides,... | |
STANDARD SAPPHIRE WAFERS (C-PLANE) | CRYSCORE can offer Epi-Ready grade sapphire wafer with a very low surface roughness in complete orientation options. c plane sapphirewafers are bei... | |
PATTERNED SAPPHIRE SUBSTRATES | Sapphire wafer is the most widely used substrate material in semiconductor lighting industry, and patterned sapphire substrate(PSS) is the general ... | |
R-PLANE (1-102) SAPPHIRE WAFERS | R plane(1-102) sapphire wafers are preferred for the hetero-epitaxial deposition of silicon used in microelectronic IC applications. R plane is the... | |
CUSTOM SAPPHIRE WINDOWS | Due to the extensive applications of sapphire in various fields, different dimensions are required. CRYSCORE can provide custom sapphire windowswit... |
Same products
Fresh Young Coconut | 卖方: Song Nam ITD Co., Ltd | Fresh Young Coconut is an organic fresh fruit and whole year round in Vietnam. Our fresh young co... | |
Looking for Vietnamese green seedless lime exporter | 卖方: Song Nam ITD Co., Ltd | Song Nam is one of the best exporter of green seedless lime in Vietnam. With the long term cooper... | |
Song Nam export Vietnamese dragon fruit | 卖方: Song Nam ITD Co., Ltd | Song Nam ITD has grown up from dragon fruit farmer families, so we understand all procedures from... | |
匈牙利-自增压液氮罐-液氮容器价格 | 卖方: 河南天之道生物科技有限公司 | 液氮作为现代科研与工业领域的关键冷却介质,其存储与供给方式直接影响实验与生产的效率与安全性。为此,我们精心设计了液氮供应罐系列,旨在为用户提供一个高效、安全、可靠的低温存储解决方案。 液氮供应罐... | |
Casting wax used for golf head manufacturing | 卖方: Syntop chemical Co.,Ltd. | Casting wax is mainly used in the field of aviation industry, civil precision casting, but also i... |