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

	SAPPHIRE WINDOWS	SAPPHIRE WINDOWS Sapphire has a wide transmission range, spanning the three wavelength bands of ultraviolet, visible light and infrared and has hi...
	PATTERNED SAPPHIRE SUBSTRATES	Sapphire wafer is the most widely used substrate material in semiconductor lighting industry, and pattern sapphire substrate(PSS) is the general me...
	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 ...
	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 ...
	PATTERNED SAPPHIRE SUBSTRATES	Sapphire wafer is the most widely used substrate material in semiconductor lighting industry, and patterned sapphire substrate (short for PSS) is t...

Похожие товары

	Floral Garden Tools Set	Продавец: Dongyang Guorui Industry And Trade Co., Ltd.	Investing in a floral garden tools set not only enhances your gardening experience but also add...
	Rice Husk Pellet Machine	Продавец: Jiangsu Kingwood Industrial Co., Ltd.	● JWZL-420 is the most popular biomass/woodpellet machine of all the pellet mills offered by Ch...
	Греция-Генетические криобанки-Криоконсервация клеток	Продавец: Хэнань Тяньчжидао Биотехнология Лтд.	В наше время, когда технологии не перестают развиваться, с увеличением требований к криохранению ...
	Common Rail Fuel Injector Nozzle L500PBC	Продавец: 738347	Common Rail Fuel Injector Nozzle L500PBC 0 445 110 189 Injector Valve Set 0 445 110 190 Injector...
	Common Rail Fuel Injector Nozzle F00VX40014	Продавец: 738347	Common Rail Fuel Injector Nozzle F00VX40014 Common Rail Fuel Injector Nozzle F340 Common Rail ...