MicroLED technology is taking a significant leap forward as JSG unveils a 1000kg sapphire crystal, pushing the boundaries of display innovation. JSG, a leader in semiconductor equipment, photovoltaic equipment, and materials, utilizes self-developed technology to produce high-purity quartz crucibles, sapphire materials, SiC materials, and diamond wire. These materials are essential in various high-tech applications.
Sapphire materials, in particular, have become a cornerstone for the MicroLED industry due to their exceptional strength, hardness, and resistance to corrosion. Most MicroLED chips now use sapphire as their substrate, and JSG’s advancements in large-size sapphire crystal growth have reached a globally recognized standard. Recently, JSG achieved another milestone in sapphire research.
Pioneering Sapphire Technology for MicroLED Displays
On May 14, JSG announced via its official WeChat account that its subsidiary, JH Electronic, successfully produced a 1000kg ultra-large sapphire crystal, setting a new world record. This achievement follows their previous record of a 750kg crystal set in 2020, marking the fourth time JSG has broken its own record.
Sapphire Crystals Elevate MicroLED Innovation
JH Electronic, a wholly-owned subsidiary of JSG, focuses on the production and processing of sapphire crystals. These sapphire crystals (α-Al2O3) are simple coordination-type oxide crystals known for their unique lattice structure, superior mechanical properties, and excellent thermal performance. Such qualities make them ideal for applications like GaN/Al2O3 light-emitting diodes (LEDs), large-scale integrated circuits (SOI and SOS), and superconducting nanostructured thin films.
Since its founding in 2013, JH Electronic has developed sophisticated production lines for cutting, grinding, and polishing sapphire materials, forming a complete industrial chain for sapphire growth and processing.
Overcoming Sapphire Production Challenges
The successful development of the 1000kg sapphire crystal represents a major breakthrough, overcoming technical bottlenecks in growing high-quality, ultra-large sapphire crystals using the floating zone method. This achievement meets the growing demand for large-size sapphire crystals while addressing the challenges of producing smaller, less reliable crystals in mass quantities.
By mastering key technologies in sapphire growth, JH Electronic is set to drive further advancements in the sapphire material industry, opening new frontiers in MicroLED display technologies.
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