PATENT CLAIM ANALYSIS

Application Number: 16082570
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["438", "462000"]

Abstract:
In a case where a back surface of an SiC semiconductor wafer, which is provided by a C surface, is covered with a back surface electrode and a scribe line cannot be confirmed, a reference line is formed before dicing. As a result, even when a processing upper surface from which dicing is carried out is a C surface, the dicing can be performed by estimating a scribe line with reference to the reference line. Accordingly, even if the semiconductor wafer is cut at a higher speed than that in the conventional art, a high-quality SiC semiconductor device with less chipping can be manufactured. A blade abrasion can be reduced, and costs can be also reduced.

Claim (Index 6):
The method for manufacturing the silicon carbide semiconductor device according to  claim 1 , wherein\n in the preparing of the semiconductor wafer, the semiconductor wafer formed with an orientation flat that is parallel to one direction of the scribe line is prepared, in the forming of the reference line, the reference line in a direction perpendicular to the orientation flat is formed by the dicing as a first reference line, and in the dividing into the chips, the orientation flat is used as a second reference line, and the semiconductor wafer is divided into the chips with reference to the first reference line and the second reference line.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 97.0
- Lexical Diversity: 1.92537
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10372942', '11638500', '10787207', '12465349', '12094601']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8747046240484861
- 35 USC 102 Novelty (BERT): 0.4716265094461729
- Combined Prediction Score: 0.8343968125882548
- Mean Citation Score: 210.694004
- Max Citation Score: 214.58958
- Similarity Product: 189.2460672425401

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