28 June 2011

Sono-Tek exhibiting photoresist and thin-film solar coating system

At the Semicon West/Intersolar 2011 event in San Francisco (12–14 July) in booth 2631 (South Hall), Sono-Tek Corp of Milton NY, USA is displaying its ExactaCoat Tabletop Coating System along with working demonstrations of its patented precision ultrasonic spray nozzles.

Picture: ExactaCoat Tabletop Coating System.

The ExactaCoat Tabletop Coating System is a fully enclosed programmable XYZ motion system designed for depositing uniform thin-film coatings for electronics and solar applications, including photoresist deposition and various thin-film solar cell coatings.

Particularly suitable for deep well topography coatings, the ExactaCoat is a full coating solution for R&D and low-volume production applications such as depositing photoresist onto wafers and micro-electro-mechanical systems (MEMS). The system is also suited to applying buffer layers such as cadmium sulfide (CdS) and active layers such as copper indium gallium diselenide (CIGS) and cadmium telluride (CdTe) onto thin-film solar cells, phosphoric doping for inline diffusion, organic solar cell coatings, and fluxing of solder bus lines.

The ExactaCoat can be tailored with a number of customizable options including nozzle tilt, dual nozzle, camera, laser pointer, low oxygen atmosphere, and rod coating attachment. It can also be configured with any of Sono-Tek’s precision ultrasonic atomizing nozzles to produce highly uniform targeted thin-film coatings with very little overspray and non-clogging repeatable performance, with savings in spray materials, maintenance and clean-up costs, it is claimed.

Tags: Coating system CdS CdTe

Visit: www.sono-tek.com