PATENT CLAIM ANALYSIS

Application Number: 16172044
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["257", "447000"]

Abstract:
An image sensor chip includes a semiconductor layer intended to receive illumination on a back face and comprising a matrix of pixels on a front face. An interconnection structure is arranged on the front face and a carrier is attached to the interconnection structure with a first face of the carrier facing the front face. An annular trench, arranged on a perimeter of the image sensor chip, extends from a second face of the carrier through an entire thickness of the carrier and into the interconnection structure. A via opening, arranged within the annual trench, extends from the second face of the carrier through the entire thickness of the carrier to reach a metal portion of the interconnection structure. The via opening an annual trench are lined with an insulating layer. The via opening include a metal conductor making an electrical connection to the metal portion.

Claim (Index 1):
A method for manufacturing image sensor chips, comprising:\n a) forming a wafer comprising a semiconductor die, interconnection structures arranged on a front face of the semiconductor die, and matrices of pixels formed in the semiconductor die with circuit elements formed at said front face that are connected to said interconnection structures; b) bonding a first face of a handle to the wafer facing said interconnection structures; c) for each image sensor chip, opening, from a second face of the handle, an annular trench surrounding each matrix of pixels, the annular trench passing through an entire thickness of the handle; and d) slicing the wafer for separate the image sensor chips, wherein an edge of each image sensor chip is located beyond the annular trench of said image sensor chip.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 97.0
- Lexical Diversity: 2.55738
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15600962', '13688008', '12790773', '14804629', '13616288']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8944801129879156
- 35 USC 102 Novelty (BERT): 0.5229536193593692
- Combined Prediction Score: 0.857327463625061
- Mean Citation Score: 210.564384
- Max Citation Score: 321.4723
- Similarity Product: 263.7557258443356

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