PATENT CLAIM ANALYSIS

Application Number: 16050899
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-04
Patent Classification: ["257", "076000"]

Abstract:
According to at least some embodiments of the present disclosure, a method of manufacturing semiconductor wafers comprises: selectively growing a nitride buffer layer on a first surface of a patterned substrate, the patterned substrate including at least the first surface and a second surface; and growing an epitaxial layer on the nitride buffer layer, wherein a crystal surface of the epitaxial layer grows along a normal direction of the patterned substrate. The epitaxial layer does not include multiple crystal surfaces having different crystal growth directions that cause a stress at a junction interface where the crystal surfaces having the different crystal growth directions meet.

Claim (Index 8):
The method of  claim 1 , wherein said selectively growing the nitride buffer layer comprises:\n disposing a sacrificial layer on the first surface and the second surface of the patterned substrate, the sacrificial layer including a first portion disposed on the first surface and a second portion disposed on the second surface; exposing the first surface by removing the first portion of the sacrificial layer disposed on the first surface; growing an original nitride buffer layer on the first surface and the second portion of the sacrificial layer; removing a top portion of the original nitride buffer layer by a first wet etching process or a dry etching process to expose a top portion of the second portion of the sacrificial layer; and lifting off the second portion of the sacrificial layer disposed on the second surface and a portion of the original nitride buffer layer disposed on the second portion of the sacrificial layer by a second wet etching process, such that the nitride buffer layer remains and is in direct contact with the first surface of the patterned substrate and no nitride buffer layer remains on the second surface of the patterned substrate.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 95.0
- Lexical Diversity: 1.91379
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15304189', '15304135', '14833732', '13191798', '13677997']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.924659187897006
- 35 USC 102 Novelty (BERT): 0.5014073940156337
- Combined Prediction Score: 0.8823340085088689
- Mean Citation Score: 222.14127
- Max Citation Score: 234.4929
- Similarity Product: 158.34166471619008

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