A new technique measures free-form wafer shape, write Marco Franchi, Wooptix, and Leon van Dijk, Ronald Otten, Richard Van Haren, ASML. On-product overlay (OPO) is one of the most critical parameters ...
With a focus on parallel optimization and nanoscale accuracy, precision positioning specialist PI is streamlining the optical alignment, test and packaging of quantum photonic devices Parallel lines: ...
One of the contributors to layer-to-layer overlay in today’s chip manufacturing process is wafer distortion due to thin film deposition. Mismatch in the film specific material parameters (e.g., ...