PATENT CLAIM ANALYSIS

Application Number: 15866381
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "329000"]

Abstract:
According to one embodiment, a method includes forming a drain contact above a channel, each having a hollow circular cross-section thereof along a plane perpendicular to a film thickness direction, forming gate dielectric layers on sides of the drain contact and the channel, forming a source line positioned below the channel that is electrically coupled to a plurality of channels in a direction along the plane, forming gate layers on sides of the gate dielectric layers, where an inner gate layer fills a hole through a center of a center concentric circular cross-section of the gate dielectric layers along the plane, and where an outer gate layer surrounds an outside concentric circular cross-section of the gate dielectric layers along the plane, forming an electrode above the upper surface of the drain contact, and forming a fourth insulative layer on sides of the electrode along the plane.

Claim (Index 8):
The method as recited in  claim 7 , wherein forming the drain contact comprises:\n forming a drain material above a substrate in the film thickness direction; forming and patterning a first masking layer above the drain material in the film thickness direction, the first masking layer being patterned to expose a portion of the drain material having a circular cross-section along the plane perpendicular to the film thickness direction; removing all portions of the drain material except for the exposed portion of the drain material and portions positioned directly therebelow in the film thickness direction using the first masking layer; removing the first masking layer during or after removal of the portions of the drain material; forming a first insulative layer above portions of the substrate not covered by the drain material to a thickness consistent with an upper surface of the drain material; forming a second insulative layer above the first insulative layer and the drain material in the film thickness direction to a desired thickness; placing the first masking layer above the second insulative layer aligned with previous placement of the first masking layer above the substrate to expose a portion of the second insulative layer having the circular cross-section along the plane perpendicular to the film thickness direction; removing the exposed portion of the second insulative layer to expose the upper surface of the drain material; removing the first masking layer during or after removal of the exposed portion of the second insulative layer; growing the second insulative layer along the plane perpendicular to the film thickness direction to shrink a diameter of a hole through the second insulative layer having the circular cross-section along the plane perpendicular to the film thickness direction; and removing exposed portions of the drain material through the hole of the second insulative layer.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 86.0
- Lexical Diversity: 2.51613
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15865109', '15855953', '15859139', '15865066', '15859114']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9080101327040428
- 35 USC 102 Novelty (BERT): 0.5257066780918958
- Combined Prediction Score: 0.8697797872428282
- Mean Citation Score: 263.66927400000003
- Max Citation Score: 316.54123
- Similarity Product: 238.688825305512

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test