LED-on-Si:A Looming Threat for Sapphire Makers

 
 
 
 

All major LED makers are currently exploring opportunities for transitioning from a sapphire-based technology sapphire wafersplatform to a silicon-based one (“LED-on-Si”); this interest is driven by a potential cost savings of up to 60% at the die level. But while significant progress has been made, the technology still faces hurdles, and it remains to be seen whether the leading proponents of LED-on-Si, like Bridgelux/Toshiba and Lattice Power, will be able to tackle all of the remaining challenges and transition to mass manufacturing in a cost-effective manner. For most other LED companies, LED-on-Si is often an important development axis, but not a necessary milestone on their manufacturing roadmap. The jury is still out, but in the meantime, investments in the large-diameter sapphire platform are often postponed pending the outcome of LED-on-Si.

SoS to Provide Welcome Upsides, But Could Cell Phone Windows Be The Next Killer Application?

The Silicon on Sapphire (SoS) application could represent a nice upside for the happy few that enter the supply chain. Demand more than doubled in 2012 and could do the same in 2013. Leading SoS company Peregrine has developed a compelling Antenna Switch technology that has already achieved vast success in smart phones. The company benefits from strong macro trends in the cell phone market and is developing new components that could further increase not only SoS content per phone, but also wafer demand. Opportunities for these new components (Power Amplifiers and tunable capacitors), as well as for competing technologies developed by companies like Paratek (now part of cell phone maker RIM), may bring new volume applications to sapphire wafer manufacturers.


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