Canon FPA-6300ESW KrF platform scanning lithography system

The Canon FPA-6300ESW is a wide-field scanning lithography system built upon a mature KrF platform. It is primarily designed to address a critical challenge in the manufacturing of large-format devices—such as full-frame CMOS image sensors—which typically require multiple exposures and subsequent stitching.

The core innovation lies in its optical system. The machine utilizes a unique 1:3.125 projection reduction ratio (as opposed to the conventional 1:4), which expands the single-exposure field size to 33mm × 42.2mm while maintaining compatibility with standard 6-inch photomasks. This makes it the only KrF scanning system in the world capable of exposing a full-frame CMOS image sensor in a single pass, eliminating the need for stitching. For image sensors, the removal of stitch lines prevents alignment errors at the seams—a common source of yield loss—directly at the manufacturing stage.

Key specifications include a KrF 248nm light source, an automatically variable numerical aperture (NA) ranging from 0.45 to 0.70, a resolution of ≤130nm, and an overlay accuracy of ≤9nm. It supports 300mm wafers, and the system dimensions are approximately 2.3m × 5.2m × 2.9m.

Regarding platform strategy, the FPA-6300ESW leverages the market-proven FPA-6300ES6a architecture, inheriting its high equipment uptime and reliability. The platform is also highly scalable, supporting field upgrades to enhance both productivity and overlay accuracy. Beyond image sensors, the system can be configured for other large-format applications, including advanced packaging and display manufacturing.