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 4):
The packaging method according to  claim 3 , wherein the forming the redistribution layer in the through hole and on the second surface of the wafer, with the redistribution layer being electrically connected to the first contact pad comprises:\n forming an insulative layer, wherein the insulative layer covers a side wall of the through hole, the second surface of the wafer and the first surface of the drive chip, and a first opening is formed on the insulative layer to expose the second contact pad; and forming the redistribution layer in the through hole, and forming an electrical wiring layer in the first opening, wherein the redistribution layer is electrically connected to the first contact pad, the electrical wiring layer is electrically connected to the second contact pad, and the redistribution layer covers an inner wall of the through hole and extends to the second surface of the wafer.

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): 0.914512174177127
- 35 USC 102 Novelty (BERT): 0.5070002394899542
- Combined Prediction Score: 0.8737609807084098
- Mean Citation Score: 245.230636
- Max Citation Score: 281.32315
- Similarity Product: 241.950723903507

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