PATENT CLAIM ANALYSIS

Application Number: 16261517
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-05
Patent Classification: ["257", "737000"]

Abstract:
A wafer level chip scale package (WLCSP) structure and a manufacturing method are disclosed. The WLCSP structure comprises a semiconductor die and a stack. The stack comprises a protective tape and a molding compound. A portion of a first interface surface between the molding compound and the protective tape is curved. The manufacturing method comprises the steps of forming a semiconductor structure; attaching the semiconductor structure on a dummy wafer; performing a first dicing process using a first cutting tool; depositing a molding compound; removing the dummy wafer; performing a second dicing process with a second cutting tool. A first aperture of the first cutting tool is larger than a second aperture of the second cutting tool. The portion of the first interface surface being curved reduces the possibility of generation of cracks in the WLCSP structure.

Claim (Index 6):
The method for manufacturing the WLCSP structures of  claim 5 , wherein each connection member of the plurality of connection members comprises a metal pillar and a solder bump, and the sub-step of depositing the second metal layer, the passivation layer and the plurality of connection members on the top surface of the active area of the substrate comprises the sub-steps of:\n depositing the second metal layer on the top surface of the active area of the substrate and depositing the passivation layer to cover the top surface of the second metal layer; depositing a respective metal pillar through each opening formed on the passivation layer directly, the respective metal pillar being connected to the second metal layer; and depositing a respective solder bump on each metal pillar to form a respective connection member.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 99.0
- Lexical Diversity: 2.51667
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15197609', '11782384', '11951729', '14021708', '14261252']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9233694152431642
- 35 USC 102 Novelty (BERT): 0.5021356515784697
- Combined Prediction Score: 0.8812460388766947
- Mean Citation Score: 190.72019
- Max Citation Score: 266.2746
- Similarity Product: 205.0301037401676

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

Dataset: test