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Seoul Viosys begins mass production of rare-earth-free white light emitter, with chips as small as 10µm
What happened
Opto-semiconductor device maker Seoul Viosys Co Ltd (SVC) says it has developed and is now mass producing a chip that emits white light without rare-earth materials, and the chip can be as small as 10µm. The source does not state the cause beyond this; as background, the article notes that for three decades white LEDs have depended on rare-earth materials such as yttrium aluminium garnet (YAG) layered onto a blue LED chip. The mass production claim is the manufacturer's own statement; the article provides no capacity, timeline or other details.
Impact and signal
Medium impactImpact score: 55/100
Affected components and suppliers
rare-earth-free white light emitting chip (white LED)
Seoul Viosys Co Ltd (SVC)
Seoul Viosyswhite LEDrare-earth-freemass production10µm chip
Source and time
Source: Semiconductor Today · 10/29/2026 · View original source
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