PATENT CLAIM ANALYSIS

Application Number: 15890063
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["134", "001000"]

Abstract:
A method of cleaning an object that includes a plurality of chips divided individually, starting from modified layers, and integral with a holding member, includes the steps of placing the object in a cleaning tank filled with a cleaning liquid which contains a surface active agent, and cleaning away modified layer debris on side faces of the chips with ultrasonic waves generated by ultrasonic oscillating means.

Claim (Index 1):
A wafer processing method of processing a wafer having a plurality devices formed on a front side of the wafer in separate regions demarcated by a plurality of crossing division lines, comprising:\n a modified layer forming step of applying a laser beam having a transmission wavelength to the wafer along each division line in a condition where the focal point of the laser beam is set inside the wafer, thereby forming a modified layer inside the wafer along each division line; a dividing step of dividing the wafer by applying an external force to the wafer along each division line where the strength has been reduced by the formation of the modified layer to thereby divide the wafer into a plurality of device chips with a predetermined spacing between the adjacent device chips; an inter-chip holding step of holding the predetermined spacing between the adjacent device chips after performing said dividing step; a placing step of placing the wafer in a cleaning tank storing a cleaning liquid which contains a surface active agent after performing said inter-chip holding step; and a cleaning step of cleaning away modified layer debris on side faces of the device chips with ultrasonic waves generated by an ultrasonic oscillating means after performing said placing step, said ultrasonic oscillating means being disposed on a bottom or a side of the cleaning tank.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 1.47917
- Patent Class: 134.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15370638', '14508389', '11901774', '15847224', '15215125']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8128258201503312
- 35 USC 102 Novelty (BERT): 0.469928624758189
- Combined Prediction Score: 0.778536100611117
- Mean Citation Score: 140.69485600000002
- Max Citation Score: 143.0723
- Similarity Product: 101.36082728754285

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