PATENT CLAIM ANALYSIS

Application Number: 15754003
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["438", "455000"]

Abstract:
A method for producing a bonded SOI wafer by bonding a bond wafer and a base wafer, each being formed of a silicon single crystal, together with a silicon oxide film placed therebetween, the method including: preparing, as the base wafer, a silicon single crystal wafer whose resistivity is 100 ∩·cm or more and initial interstitial oxygen concentration is 10 ppma or less; forming, on the front surface of the base wafer, a silicon oxide film by performing, on the base wafer, heat treatment in an oxidizing atmosphere at a temperature of 700° C. or higher and 1000° C. or lower for 5 hours or more; bonding the base wafer and the bond wafer together with the silicon oxide film placed therebetween; and thinning the bonded bond wafer to form an SOI layer.

Claim (Index 1):
A method for producing a bonded SOI wafer by bonding a bond wafer and a base wafer, each being formed of a silicon single crystal, together with a silicon oxide film placed therebetween, comprising:\n preparing, as the base wafer, a silicon single crystal wafer whose resistivity is 100 \u03a9\u00b7cm or more and initial interstitial oxygen concentration is 10 ppma or less; forming, on a front surface of the base wafer, a silicon oxide film by performing, on the base wafer, heat treatment in an oxidizing atmosphere at a temperature of 700\u00b0 C. or higher and 1000\u00b0 C. or lower for 5 hours or more; bonding the base wafer and the bond wafer together with the silicon oxide film placed therebetween; and thinning the bonded bond wafer to form an SOI layer.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 88.0
- Lexical Diversity: 2.04167
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15572769', '16303701', '15303596', '15304452', '12450329']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8637554454110186
- 35 USC 102 Novelty (BERT): 0.484742052958462
- Combined Prediction Score: 0.8258541061657629
- Mean Citation Score: 227.406636
- Max Citation Score: 237.51678
- Similarity Product: 195.4345072984028

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

Dataset: test