PATENT CLAIM ANALYSIS

Application Number: 15876423
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["438", "033000"]

Abstract:
An optical device wafer processing method for dividing an optical device wafer along a plurality of division lines to obtain a plurality of individual device chips includes applying a laser beam to a wafer substrate along each division line to thereby form a laser processed groove along each division line, and next forming a V groove along each laser processed groove on the optical device wafer by using a cutting blade having a V-shaped tip in the condition where each laser processed groove is removed by the cutting blade. A crack is formed so as to extend from the bottom of each laser processed groove due to a load applied from the cutting blade, thereby dividing the optical device wafer into the individual device chips. The depth of each laser processed groove is set smaller than the depth of cut by the cutting blade.

Claim (Index 1):
An optical device wafer processing method for dividing an optical device wafer along a plurality of division lines formed on the front side of said optical device wafer to obtain a plurality of individual device chips, said optical device wafer being composed of a wafer substrate and a light emitting layer formed on said wafer substrate, said light emitting layer having a plurality of optical devices individually corresponding to said device chips, said optical device wafer processing method comprising:\n a laser processed groove forming step of applying a laser beam having an absorption wavelength to said wafer substrate, to said optical device wafer along each division line, thereby forming a laser processed groove along each division line on said optical device wafer; and a V groove dividing step of forming a V groove along each laser processed groove on said optical device wafer by using a cutting blade having a V-shaped tip in the condition where each laser processed groove is removed by said cutting blade, after performing said laser processed groove forming step, and simultaneously dividing said optical device wafer into said individual device chips by forming a crack extending from the bottom of each laser processed groove due to a load applied from said cutting blade; the depth of each laser processed groove being set smaller than the depth of cut by said cutting blade.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.19118
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15348071', '14882990', '15151143', '15799567', '14572917']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8690503880981295
- 35 USC 102 Novelty (BERT): 0.4850303451097275
- Combined Prediction Score: 0.8306483837992893
- Mean Citation Score: 254.44962200000003
- Max Citation Score: 260.29865
- Similarity Product: 237.3104651938856

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