PATENT CLAIM ANALYSIS

Application Number: 15779269
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["257", "076000"]

Abstract:
A process allowing at least one semipolar layer of nitride to be obtained, which layer is obtained from a least one among gallium, indium and aluminum on a top surface of a single-crystal layer based on silicon, wherein the process comprises the following steps: etching, from the top surface of the single-crystal layer, a plurality of parallel grooves comprising at least two opposite inclined facets, at least one of two opposite facets having a crystal orientation; masking the top surface of the single-crystal layer such that the facets having a crystal orientation are not masked; and epitaxial growth of the semipolar layer of nitride from the not masked facets; wherein the etching is carried out on a stack comprising the single-crystal layer and at least one stop layer that is surmounted by the single-crystal layer and wherein the etching etches the single-crystal layer selectively with respect to the stop layer so that the etching stops on contact with the stop layer.

Claim (Index 22):
The process as claimed in  claim 1 , wherein the parallel grooves of the plurality of parallel grooves mainly extend in a first direction, and\n the process also comprises the following steps, which are executed after the step of obtaining the plurality of parallel grooves and before the step of epitaxial growth of the single-crystal layer: etching a plurality of parallel trenches that extend in a second direction having undergone a rotation with respect to said first direction, and that thus interrupt the continuous grooves so as to form a matrix-array of individual facets each having a single-crystal orientation; the trenches and the grooves each having a bottom, the bottom of the trenches being located at the same depth or below the bottom of the grooves; and wherein, during said epitaxial growth step, said material grows solely from said individual facets that have a crystal orientation and that form said matrix-array.

Metadata:
- Claim Count in Document: 62.0
- Percentile: 93.0
- Lexical Diversity: 2.45714
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11676999', '15304189', '15304135', '12889787', '10936512']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9132268729711706
- 35 USC 102 Novelty (BERT): 0.5190855273051422
- Combined Prediction Score: 0.8738127384045677
- Mean Citation Score: 238.11267000000004
- Max Citation Score: 264.59375
- Similarity Product: 167.99780385755002

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test