CARBON NANOTUBE FIELD EMISSION DEVICE WITH OVERHANGING GATE
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Abstract
A carbon nanotube field emission device with overhanging gate fabricated by a double silicon-on-insulator process. Other embodiments are described and claimed.
11 Citations
18 Claims
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1-4. -4. (canceled)
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5. A semiconductor process applied to a wafer, the wafer comprising a silicon substrate;
- a first insulator layer on the silicon substrate;
a first silicon layer on the first insulator layer;
a second insulator layer on the first silicon layer; and
a second silicon layer on the second insulator layer;
the semiconductor process comprising;etching through the second silicon layer, through the second insulator layer, and through the first silicon layer to the first insulator layer to define a hole; lateral etching in the first silicon layer to laterally enlarge the hole at the first silicon layer; etching through the first insulator layer to the substrate, so that the hole has a bottom that includes the substrate; depositing a removable material on the wafer; forming an array of carbon nanotubes at the bottom of the hole on the substrate; and removing the removable material from the wafer after forming the array of carbon nanotubes. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- a first insulator layer on the silicon substrate;
Specification