PATENT CLAIM ANALYSIS

Application Number: 15980033
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["257", "773000"]

Abstract:
A semiconductor device and its manufacturing method are presented. The manufacturing method includes: providing a semiconductor structure comprising: an interlayer dielectric layer, a first metal layer surrounded by the interlayer dielectric layer, and a semiconductor layer on the interlayer dielectric layer; etching the semiconductor layer to form an opening exposing the interlayer dielectric layer, wherein the opening comprises a first opening and a second opening on the first opening; forming an insulation layer on the semiconductor structure; etching the insulation layer and the interlayer dielectric layer at the bottom of the first opening to form a groove exposing a portion of the first metal layer; forming a second metal layer on the insulation layer and on the bottom and a side surface of the groove; and patterning the second metal layer. The second metal layer in this inventive concept can be removed more completely than conventional methods.

Claim (Index 10):
The method of  claim 1 , wherein\n the interlayer dielectric layer comprises silicon dioxide, the semiconductor layer comprises silicon, the first metal layer comprises aluminum, the insulation layer comprises silicon dioxide, and the second metal layer comprises aluminum.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 2.71186
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13314627', '14747316', '13488478', '13069848', '15824776']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.927076893644534
- 35 USC 102 Novelty (BERT): 0.4955780793674942
- Combined Prediction Score: 0.88392701221683
- Mean Citation Score: 233.23172600000004
- Max Citation Score: 245.50551
- Similarity Product: 186.9047416431248

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