PATENT CLAIM ANALYSIS

Application Number: 15863000
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "334000"]

Abstract:
Techniques for forming VFETs having different gate lengths (and optionally different gate pitch and/or gate oxide thickness) on the same wafer are provided. In one aspect, a method of forming a VFET device includes: patterning fins in a wafer including a first fin(s) patterned to a first depth and a second fin(s) patterned to a second depth, wherein the second depth is greater than the first depth; forming bottom source/drains at a base of the fins; forming bottom spacers on the bottom source/drains; forming gates alongside the fins, wherein the gates formed alongside the first fin(s) have a first gate length Lg 1 , wherein the gates formed alongside the second fin(s) have a second gate length Lg 2 , and wherein Lg 1 <Lg 2 ; forming top spacers over the gates; and forming top source/drains over the top spacers. A VFET is also provided.

Claim (Index 16):
A VFET device, comprising:\n fins patterned in a first region and a second region of a wafer, wherein the fins comprise at least one first fin patterned to a first depth in the wafer and at least one second fin patterned to a second depth in the wafer, wherein the second depth is greater than the first depth, wherein the fins are patterned in the wafer having at least one first pitch and at least one second pitch, wherein the at least one first fin is patterned in the wafer at a pitch  1 , wherein the at least one second fin is patterned in the wafer at a pitch  2 , and wherein pitch  2 >pitch  1 ; bottom source and drains disposed at a base of the fins; bottom spacers disposed on the bottom source and drains; gates alongside the fins, wherein the gates formed alongside the at least one first fin have a first gate length Lg 1 , wherein the gates formed alongside the at least one second fin have a second gate length Lg 2 , and wherein Lg 1 <Lg 2 ; top spacers over the gates at tops of the fins; and top source and drains over the top spacers.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 86.0
- Lexical Diversity: 2.52941
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15853769', '15853822', '15812843', '15843318', '15833543']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9275137702986918
- 35 USC 102 Novelty (BERT): 0.5624229433247763
- Combined Prediction Score: 0.8910046876013002
- Mean Citation Score: 410.113332
- Max Citation Score: 464.81003
- Similarity Product: 321.5021076212191

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

Dataset: test