Low-cost X-ray conformal mask using dry film resist
A economical X-ray conformal mask manufactured by using a dry film process is reported. The dry film (HITACHI H-N650) is used as the photoresist in the photolithography process. Tin/lead and gold were electroplated as the X-ray absorber. The feasibility and limitations of the dry film process were addressed. Using this X-ray conformal mask in X-ray lithography, 1000 ?m thick PMMA microstructures were achieved to demonstrate the fidelity of this method.
dry film x-ray lithography x-ray mask liga technology