Products, Materials + Tools | Nov 12, 2010

Advanced LED Processing Technologies for C-Plane Sapphire Substrates Enable 50% Reduction in Polishing Time

PETER WOLTERS is introducing to the LED market a new polishing slurry that has demonstrated a 50% reduction in the time required to complete final polishing for flip chip or through substrate LED’s (see figure 1). This development utilizes a combination of chemical and abrasive technologies to decrease the cost of ownership or the manufacturing cost of the LED when manufactured on C-plane sapphire. “As demonstrated by our testing, the time required to achieve a comparable final surface finish has been reduced by half in substrates of identical incoming quality”, said David Suica, President of Peter Wolters of America, the PETER WOLTERS Competence Center for Sapphire Polishing.

The quality and clarity of the final polished surface is comparable with the utilization of colloidal silica, which is commonly utilized in the final polishing step.

This quality slurry product is completely mixed and tested by the PETER WOLTERS in-house professional team of scientists and engineers to maintain the highest levels of consistency and quality. The premixed slurry is shipped in a concentrated form, which can be easily thinned to the proper point of use consistency by adding DI water. Handling and storage of this custom slurry does not require any exceptional processes or procedures beyond what is typical to common colloidal silica.

This new polishing slurry demonstrates again that PETER WOLTERS has become well established as a market-leader for spares and accessory products which have undergone years of laboratory and field testing to ensure they meet the most exacting standards, with proven consistent and dependable results.

PETER WOLTERS of America is a subsidiary of PETER WOLTERS GmbH, a manufacturer of highprecision machine tools, headquartered in Rendsburg, Germany. PETER WOLTERS of America provides a complete line of high quality machine tools, OEM spare parts, accessories and factory trained service engineers.