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 3):
The device chip manufacturing method according to  claim 1 , wherein said passivation film removing step includes the step of using a cutting blade to cut said passivation film along each division line, thereby forming a groove on the front side of said wafer along each division line, so that said passivation film is removed along each division line.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 2.42553
- Patent Class: 438.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15790252', '15679407', '14817366', '14736872', '15456800']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8759327254751638
- 35 USC 102 Novelty (BERT): 0.4897992524400116
- Combined Prediction Score: 0.8373193781716486
- Mean Citation Score: 229.97037800000004
- Max Citation Score: 240.58875
- Similarity Product: 194.2183714288473

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