PATENT CLAIM ANALYSIS

Application Number: 15955953
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["438", "464000"]

Abstract:
A device chip manufacturing method includes a passivation film removing step of removing a passivation film along each division line, a wafer dividing step of performing plasma etching using a fluorine-based gas to the front side of a wafer in the condition where the passivation film is used as a mask, thereby dividing the wafer along the division lines, and a die attach film removing step of performing plasma etching using an oxygen-based gas to the front side of the wafer in the condition where the passivation film is used as a mask, thereby removing a part or the whole of a die attach film along each division line.

Claim (Index 4):
The device chip manufacturing method according to  claim 1 , wherein said dicing tape is expandable;\n said device chip manufacturing method further comprising a die attach film breaking step of expanding said dicing tape after performing said die attach film removing step, thereby breaking said die attach film along said division lines.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 2.42553
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15790252', '15679407', '14817366', '14736872', '15456800']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8608865855842901
- 35 USC 102 Novelty (BERT): 0.5016399028459204
- Combined Prediction Score: 0.8249619173104532
- Mean Citation Score: 229.97037800000004
- Max Citation Score: 240.58875
- Similarity Product: 160.87432139441373

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

Dataset: test