Electrically isolated pillars in active devices
First Claim
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1. An incipient diode structure including vertically formed diodes, the structure comprising;
- a first set of strips including a first terminal not comprising doped silicon and a first portion of a first diode, the first portion comprising doped silicon;
a first pillar including a second portion of the first diode;
a second set of strips including a common terminal shared by the first diode and a second diode;
a second pillar including a first portion of the second diode; and
a third set of strips including a second portion of the second diode and another terminal of the second diode, wherein each of the pillars is substantially free of stringers.
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Abstract
A method of forming an active device is provided. The method includes performing a first patterning operation on a first plurality of layers. This first patterning operation defines a first feature of the active device. Then, a second patterning operation can be performed on at least one layer of the first plurality of layers. This second patterning operation defines a second feature of the active device. Of importance, the first and second patterning operations are performed substantially back-to-back, thereby ensuring that the active device can accurately function.
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Citations
9 Claims
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1. An incipient diode structure including vertically formed diodes, the structure comprising;
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a first set of strips including a first terminal not comprising doped silicon and a first portion of a first diode, the first portion comprising doped silicon;
a first pillar including a second portion of the first diode;
a second set of strips including a common terminal shared by the first diode and a second diode;
a second pillar including a first portion of the second diode; and
a third set of strips including a second portion of the second diode and another terminal of the second diode, wherein each of the pillars is substantially free of stringers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification