PATENT CLAIM ANALYSIS

Application Number: 16028545
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["257", "414000"]

Abstract:
A packaging method and a package structure for a fingerprint recognition chip and a drive chip are provided. The packaging method is a wafer-level packaging method. According to the method, a blind hole is formed on the back surface of a wafer and the drive chip is secured in the blind hole, then the wafer is cut to obtain a package structure for the fingerprint recognition chip and the drive chip. In this way, the drive chip is packaged in the back surface of the wafer-level fingerprint recognition chip, thereby reducing the complexity of the package process. In addition, the size of the package structure is close to the size of the single fingerprint recognition chip, thereby greatly reducing the size of the package structure and improving the integration of the package structure.

Claim (Index 19):
The package structure according to  claim 16 , wherein\n the through hole is a stepped hole, the stepped hole comprises a groove arranged above the first contact pad and a via hole formed in the groove to expose the first contact pad, the via hole has a one to one correspondence with the first contact pad, the redistribution layer is formed in the stepped hole and is electrically connected to the first contact pad, and the package structure further comprises: an insulative layer, and an electrical wiring layer which is electrically connected to the second contact pad; the insulative layer covers a side wall of the stepped hole, the second surface of the fingerprint recognition chip and the first surface of the drive chip, the insulative layer is provided with a first opening and the second contact pad is exposed by the first opening, the redistribution layer is formed on an inner wall of the stepped hole and extends to the second surface of the fingerprint recognition chip; and the electrical wiring layer is arranged on the first opening.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 95.0
- Lexical Diversity: 2.88
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15815460', '15507901', '15059920', '12899258', '15981311']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9140934352127617
- 35 USC 102 Novelty (BERT): 0.5142215316580201
- Combined Prediction Score: 0.8741062448572874
- Mean Citation Score: 245.230636
- Max Citation Score: 281.32315
- Similarity Product: 213.0714474547684

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