Bringing the approach closer to production reality
A-Gas Electronic Materials, a supplier of advanced materials and process expertise for electronics and semiconductor manufacturing, is expanding its portfolio by introducing mr-P 22G, a positive-tone grayscale photoresist from Micro Resist Technology
With demand rising across micro-optics, MEMS and advanced surface engineering, traditional lithography approaches are being stretched. Built around binary exposure, they limit how efficiently engineers can create depth and profile, and often require multiple process steps to achieve the desired result.
Grayscale lithography enables controlled variation in exposure and development, allowing engineers to define height, depth, and surface profile in a single resist layer. This enables greater design freedom, fewer process stages, and improved efficiency in applications where geometry influences performance.
Despite this, adoption has remained relatively limited due to uncertainty around how grayscale behaves in practice and where it adds the most value.
Dr David Shaw, business manager at A-Gas Electronic Materials, said, “Grayscale lithography isn’t just about what’s possible; it’s about what’s practical. Our role is to help customers understand where it fits, how it behaves in real processes, and how to apply it with confidence.”
mr-P 22G can support advanced 3D microfabrication, enabling ultra-thick film applications and deep, high-resolution patterning in a single process step. This makes it suitable for applications such as micro-optics, MEMS, and MOEMS, where precise surface geometry is essential for performance.
With a limited number of true grayscale resists available, this approach provides engineers with a practical way to move beyond the constraints of conventional lithography and explore more complex structures.
A-Gas Electronics Materials is supporting adoption through material selection, process guidance, and technical troubleshooting, helping customers to bridge the gap between material capability and real-world process performance.
