摘要 |
A method including forming a photoimageable material on a substrate; developing the photoimageable material over an opening area, the photoimageable material over a first portion of the opening area developed to a first extent and the photoimageable material over a second portion of the opening area developed to a different second extent; removing developed photoimageable material from the opening area; and forming an opening in the substrate in the opening area.
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