PATENT CLAIM ANALYSIS

Application Number: 16359388
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["427", "569000"]

Abstract:
An aluminum gas distribution plate refurbishment system combines a multi-beam inductively coupled plasma (AP-ICP) torch and vacuum discharge chuck. Plasma beams are employed to clean and restore to service the many gas flow passages in aluminum type gas distribution plates. Several parallel supersonic plasma beams of uniform density are produced from a single upper and lower AP-ICP plasma reactor arranged in totem pole that are driven by two pairs of opposing spiral planar RF induction RF antennas. These plasma beams are focused inside the gas flow passages to etch, heat, and deposit nanoparticles within. The vacuum discharge chuck includes a capacitively coupled plasma (CCP) reactor to generate a positive species discharge immediately beneath the gas distribution plates. This overcomes and undoes a Debye Sheathing effect, a electron-fed negative space charge blocking occurring above, and unknots any congested plasma beams in the gas flow passages.

Claim (Index 10):
The Method of  claim 9 , further comprising:\n cleaning the inside walls of the gas flow passages of any contaminants of a prior-life PE-CVD process with plasma beams produced from hydrogen chloride gas (HCl); rinsing away the chemical reaction byproducts left behind by such HCl plasma cleaning with plasma beams formed from atomic hydrogen; pre-heating the surfaces of the passage walls with plasma beams formed from argon gas to better adhere a nanocoating of Yttrium oxide nanopowders in a Y 2 O 3  vapor; exposing the surfaces of the passage walls to a Y 2 O 3  vapor carried in by plasma beams formed from argon gas to improve the gas distribution plates with plasma-chemical corrosion protection; and annealing the deposited layers of Y 2 O 3  nanopowders by heating from plasma beams formed from argon gas so the Y 2 O 3  nanopowders better adhere to the surfaces of the inside walls of the passages; wherein, the aluminum gas distribution plate workpiece is restored to useable service in another piece of semiconductor processing equipment.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 99.0
- Lexical Diversity: 1.62887
- Patent Class: 427.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14164168', '14164179', '14164182', '09607922', '14660531']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8023275341570046
- 35 USC 102 Novelty (BERT): 0.4931363265134048
- Combined Prediction Score: 0.7714084133926447
- Mean Citation Score: 213.25400600000003
- Max Citation Score: 240.54193
- Similarity Product: 189.1173598289853

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