PATENT CLAIM ANALYSIS

Application Number: 15889542
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["438", "495000"]

Abstract:
A method of preparing a diamond crystal substrate for epitaxial deposition thereupon of a delta doping layer includes preparing an atomically smooth, undamaged diamond crystal substrate surface, which can be in the (100) plane, by polishing the surface and then etching the surface to remove subsurface damage caused by the polishing. The polishing can include a rough polish, for example in the (010) direction, followed by a fine polish, for example in the (011) direction, that removes the polishing tracks from the rough polishing. After etching the polished face can have a roughness Sa of less than 0.3 nm. An inductively coupled reactive ion etcher can apply the etching at a homogeneous etch rate using an appropriate gas mixture such as using argon and chlorine to remove between 0.1 and 10 microns of material from the polished surface.

Claim (Index 1):
A method of preparing a diamond crystal substrate for epitaxial deposition thereupon of a delta doping layer, the method comprising:\n applying a first polishing to a deposition face of the diamond crystal; and etching the deposition face of the diamond crystal, thereby removing subsurface damage caused by the polishing step.

Metadata:
- Claim Count in Document: 33.0
- Percentile: 88.0
- Lexical Diversity: 1.72222
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11912414', '10977568', '11013450', '11390333', '10653419']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8313329916284048
- 35 USC 102 Novelty (BERT): 0.4884547180368548
- Combined Prediction Score: 0.7970451642692498
- Mean Citation Score: 185.952198
- Max Citation Score: 198.65746
- Similarity Product: 147.70382148661255

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