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

Другие товары поставщика

	0391-393 3936	R-PLANE (1-102) SAPPHIRE WAFERS R plane sapphire wafers are preferred for the hetero-epitaxial deposition of silicon used in microelectronic IC app...
	CUSTOM SAPPHIRE WINDOWS	Due to the extensive applications of sapphire in various fields, different dimensions are required. CRYSCORE can provide custom sapphire windows wi...
	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...
	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...
	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 ...

Похожие товары

	Microcrystalline wax used for rubber plastic processing and modification	Продавец: Syntop chemical Co.,Ltd.	Microcrystalline wax has a wide range of industrial applications, primarily in the areas of rubbe...
	Microcrystalline wax 80A used for lubrication and demolding	Продавец: Syntop chemical Co.,Ltd.	The core industrial applications of microcrystalline wax 80A are primarily focused on rubber prot...
	Tyvek Flat Roll Pouch	Продавец: Hopeway AMD	Tyvek Flat Roll Pouch is designed for professional sterilization packaging, offering clean handli...
	Industrial Warehouse Ceiling Fans	Продавец: Hebei Windmax Power Technology Co., Ltd.	Industrial Warehouse Ceiling Fans Industrial Warehouse Ceiling Fans for Warehouses, Logisti...
	HVLS Ceiling Fan for Railway Station	Продавец: Hebei Windmax Power Technology Co., Ltd.	HVLS Ceiling Fan for Railway Station for Railway Station All units are CE-certified, manufa...