PATENT CLAIM ANALYSIS

Application Number: 15917046
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["204", "192150"]

Abstract:
A magnetically enhanced HDP-CVD plasma source includes a hollow cathode target and an anode. The anode and cathode form a gap. A cathode target magnet assembly forms magnetic field lines that are substantially perpendicular to a cathode target surface. The gap magnet assembly forms a cusp magnetic field in the gap that is coupled with the cathode target magnetic field. The magnetic field lines cross a pole piece electrode positioned in the gap. This pole piece is isolated from ground and can be connected with a voltage power supply. The pole piece can have a negative, positive, or floating electric potential. The plasma source can be configured to generate volume discharge. The gap size prohibits generation of plasma discharge in the gap. By controlling the duration, value and a sign of the electric potential on the pole piece, the plasma ionization can be controlled. The magnetically enhanced HDP-CVD source can also be used for chemically enhanced ionized physical vapor deposition (CE-IPVD). Gas flows through the gap between hollow cathode and anode. The cathode target is inductively grounded, and the substrate is periodically inductively grounded.

Claim (Index 1):
A magnetically enhanced high density plasma source comprising:\n a hollow cathode target assembly; an anode positioned on top of the hollow cathode target assembly, thereby forming a gap between the anode and the hollow cathode target assembly; a cathode magnet assembly; two rows of magnets facing each other with the same magnetic field direction that generate a cusp magnetic field in the gap and a magnetic field on a surface of the hollow cathode target assembly with the cathode magnet assembly, the cusp magnetic field comprising magnetic field lines that are substantially perpendicular to the hollow cathode target assembly; and a radio frequency (RF) power supply connected to the hollow cathode target assembly, the RF power supply generating output voltage with a frequency and amplitude that generates an electric field in the gap substantially perpendicular to the cusp magnetic field lines in the gap, the electric field igniting and sustaining RF plasma discharge between the anode and the hollow cathode target assembly, a frequency and power of the RF power supply being selected to increase a degree of ionization of feed gas atoms.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 90.0
- Lexical Diversity: 2.17021
- Patent Class: 204.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15261119', '15261197', '15260841', '14064617', '10065277']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8208537309064263
- 35 USC 102 Novelty (BERT): 0.6041621675898425
- Combined Prediction Score: 0.799184574574768
- Mean Citation Score: 387.16729
- Max Citation Score: 540.1821
- Similarity Product: 516.5796304664611

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