Ⅰ. Introduction to sapphire ingotSapphire ingots are aluminum oxide crystals, which are used to produce sapphire substrates, the most advantageous upstream raw material for LEDs. Under the rapid deve...
1. The craftsmanship of the Kyropoulos methodKyropoulos method (Kyropoulos method) was invented by Kyropoul s in 1926, after decades of continuous transformation and improvement by scientific research...
1. Dislocation density exists between GaN and sapphire substrateCompared with single crystal silicon and single crystal silicon carbide, sapphire has the advantages of good mechanical properties, high...
1. The properties of the sapphire windowSapphire (molecular formula Al2O3) single crystal is an excellent multifunctional material. It has high temperature resistance, good thermal conductivity, high ...
1. The transmission range of sapphire opticsSapphire is the second highest hardness crystal. Its various properties make it suitable for harsh environments, including ultra-high surface hardness, high...
What is the development path of sapphire substrate technology for LED?The quality of the mainstream ultra-high-brightness LEDs currently on the market depends on the quality of the gallium nitride cry...
1. Introduction of sapphire substrateThe quality of the sapphire substrate has a great influence on the subsequent growth of the GaN epitaxial layer, the performance and yield of the blue diode produc...
1. LED sapphire substrate will gradually evolve to large sizeIn the LED industry, there is also a "Moore's law" similar to the integrated circuit field-Haitz's law, which mainly mean...
1. Patterned sapphire substrate reduces dislocation density of GaN epitaxial layerThe patterned sapphire substrate can significantly reduce the linear dislocation density in the GaN epitaxial layer be...
Ⅰ. Advantages of sapphire windows themselvesAs a kind of corundum, sapphire has the characteristics of high strength, high hardness, high temperature resistance, corrosion resistance, good wear resis...
1. What is sapphire?As the king of LED substrate, the name of sapphire is from Latin Spphins, which means blue. It belongs to the corundum group mineral, with cubic crystal system. In the gem world, a...
1. Market value of sapphireSapphire, commonly known as corundum, is mainly composed of alumina (Al2O3). The crystal hardness of sapphire is high, and its Mohs hardness is grade 9, only behind diamond....
1. Sapphire wafers in CryscoreAs a mature supplier of sapphire wafer and sapphire window, Cryscore Optoelectronic Limited produces all kinds of high quality sapphire wafers. Here, we will introduce an...
Ⅰ. Sapphire materials with excellent physical propertiesSapphire has excellent optical, physical and chemical properties. The crystal structure of sapphire (Al2O3) is hexagonal lattice structure, whi...
Ⅰ. What is LED substrate material?LED substrate material is the basic material of semiconductor lighting industry, which determines the development route of semiconductor lighting technology. At pres...
1. Applications of the sapphire substrateAs an important kind of optical material, the sapphire has been widely used in many fields such as the fields of science and technology, national defense and c...
1. Two links in the industrial chain of sapphire substrateSapphire substrate industrial chain mainly has two links: crystal bar growth and wafer cutting.Crystal bar production is to put high purity al...
1. Development of sapphire substrateAs an important technical crystal, sapphire is widely used as window material for infrared military device, satellite space technology and high intensity laser. It ...
1. The development law of sapphire substrateIn the LED industry, there is a similar "Moore's Law", called Haitz law, which means that the price of LED will decrease by a tenth every 10 y...
1. Brief introduction of silicon on sapphire wafersSilicon on sapphire wafers technology refers to growing a layer of silicon thin film on the epitaxy of sapphire wafer to make semiconductor integrat...
Patterned sapphire substrate (PSS) is now in short supply. Patterned sapphire substrate has become the mainstream market in Japan and South Korea, and the permeability will be gradually increased in o...
Sapphire is one of the important substrate materials for LED, and the surface of the sapphire wafer as the substrate of LED must be ultra-smooth without damage. The research shows that the quality of ...
Sapphire substrates for LED mainly used by sapphire manufacturers are divided into three types:1.C-Plane sapphire substrate for LEDIt is a sapphire substrate for LED commonly used by many manufacturer...
The composition of sapphire is aluminium oxide (Al2O3), which is formed by covalent bonding of three oxygen atoms and two aluminum atoms, and its crystal structure is a hexagonal lattice. It is often ...
Sapphire crystal material is an important basic material for current industry, owning marvelous optical properties, corrosion resistance, mechanical properties and chemical stability, which is extreme...
The price war of LED lighting continues. For related wafer manufacturers, how to reduce the production cost of LED wafers has become a key to survival. By introducing more advanced cutting technology ...
At present, the quality of ultra-high brightness white or blue LED depends on the material quality of GaN, which is closely related to the surface processing quality of the sapphire substrate. The lat...
As an important optical material, sapphire has been widely used in many fields such as science and technology, national defense, civil industry, etc. Due to the unique mechanical processing characteri...
Patterned sapphire substrates can be used repeatedly as the main body of the substrate, so it can be used as the sacrificial substrate of LED. As a sacrificial substrate, the related patent applicatio...
Third, waxless substrate.To polish a wafer on a machine, there must be a carrier that can hold it, and the waxless substrate plays this role. The wafers to be processed are put on it one by one for pr...
The last process of the sapphire wafer is also the most important one, namely polished sapphire wafer. The quality of polishing process directly determines whether the product can be sent out and whet...
Sapphire (a-Al2O3) is a multifunctional oxide crystal with excellent optical, physical, and chemical properties. In the field of optoelectronics, sapphire crystal is the preferred substrate material f...
Ultrasonic cleaning machineUltrasonic cleaning machine is a kind of cleaning equipment widely used in the microelectronics industry. The principle of ultrasonic cleaning is that under the strong ultra...
Sapphire ingots are aluminum oxide crystals used to produce sapphire substrates. The application of the sapphire ingots is the application of sapphire. As long as we know the performance of sapphire, ...
What is the reason for the long polishing time of the sapphire window? Let's have a look.The window piece is mainly used for mobile phones. Many manufacturers will be very careful in the productio...
At present, the main methods of polished sapphire wafer polishing technologies are mechanical polishing, chemical polishing, ion beam polishing, laser beam polishing, and so on. However, each polishin...
Sapphire has the characteristics of high hardness, high brittleness, and chemical stability, which are the strengths as an optical material, but also the difficult points in processing. In order to ob...
Sapphire, whether used as a substrate in the field of optoelectronics or a window in the field of optical communications, has very high requirements for its processing quality. For example, when used ...
LED sapphire substrate has been used in 96.7 percent of LED production globally by 2020, according to researches ftom IHS.Almost all top LED suppliers, including Nichia Chemicals, OSRAM Optoelectronic...
There are many substrate materials used to grow GaN films which are requisite for the preparation of blue LEDs. Sapphire and SiC are the most common ones. In recent years, sapphire has become the most...
For patterned sapphire substrate, before it becomes a qualified substrate, it has gone through several processes, such as cutting, rough grinding, fine grinding and polishing.
Sapphire material has a high Mohs hardness of 9.0 and high transmittance in both visible and infrared bands, so it has become the preferred material in the extreme use environment.
