PATENT CLAIM ANALYSIS

Application Number: 15898178
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-10
Patent Classification: ["216", "067000"]

Abstract:
A device and method of spreading plasma which allows for plasma etching over a larger range of process chamber pressures. A plasma source, such as a linear inductive plasma source, may be choked to alter back pressure within the plasma source. The plasma may then be spread around a deflecting disc which spreads the plasma under a dome which then allows for very even plasma etch rates across the surface of a substrate. The apparatus may include a linear inductive plasma source above a plasma spreading portion which spreads plasma across a horizontally configured wafer or other substrate. The substrate support may include heating elements adapted to enhance the etching.

Claim (Index 1):
A plasma etching process chamber, said plasma etching process chamber comprising:\n a plasma source, said plasma source comprising a first end and a second end, said first end comprising a gas input portion, said plasma source coupled to a process chamber at a second end; a process chamber; a constricting plate adapted to constrict the flow of plasma from said plasma source, said constricting plate at said second end of said plasma source; a spreading disc, said spreading disc adapted to spread the flow of plasma after the plasma has flowed through said constricting plate, said spreading disc disposed between said constricting plate and the substrate support; a substrate support, said support adapted to support a substrate in the spread plasma flow, said substrate support residing within said process chamber; and a vacuum system, said vacuum system adapted to evacuate said process chamber.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 88.0
- Lexical Diversity: 1.82812
- Patent Class: 216.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12039350', '13416277', '14746670', '12850559', '14679242']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8029898733155786
- 35 USC 102 Novelty (BERT): 0.4475681475222391
- Combined Prediction Score: 0.7674477007362447
- Mean Citation Score: 127.624802
- Max Citation Score: 130.3024
- Similarity Product: 100.20681643781664

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