·One way to shape the
EL lamp is by patterning the ITO
electrode.
-Only the phosphor
under the ITO electrode
will be excited.
·Photolithography is
used to transfer a pattern.
1.The ITO coated
glass is covered with a photo
resist
2.The resist is
exposed under a mask of the
desired pattern.
3.The resist is
developed. The exposed sections of the resist dissolve while the unexposed sections harden (positive type resist).
*See the
photolithography slideshow for further
details.
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