PATENT CLAIM ANALYSIS

Application Number: 16007169
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-12
Patent Classification: ["257", "330000"]

Abstract:
A method for forming a semiconductor device is provided. A plurality of trenches are formed in the substrate. An isolation oxide layer is formed in the trenches and on the substrate. A shield polysilicon is deposited in the trenches and on the isolation oxide layer on the substrate. A first etching process is performed to remove a first portion of the shield polysilicon. A first removal process is performed to remove a first portion of the isolation oxide layer. A second etching process is performed to remove a second portion of the shield polysilicon. A second removal process is performed to remove a second portion of the isolation oxide layer. An inter-poly oxide layer is formed on the remaining shield polysilicon and the remaining isolation oxide layer, wherein the inter-poly oxide layer has a concave top surface.

Claim (Index 19):
The semiconductor device as claimed in  claim 11 , wherein the height difference between the highest point of a second top surface portion of the isolation oxide layer adjacent to the one of the trenches and the lowest point of the first top surface portion of the isolation oxide layer adjacent to the shield polysilicon is between 30 nm and 40 nm and/or the average thickness of the inter-poly oxide layer is between 90 nm and 170 nm.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 94.0
- Lexical Diversity: 3.34091
- Patent Class: 257.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15363138', '12551417', '11514743', '14083533', '15687881']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9264763706338895
- 35 USC 102 Novelty (BERT): 0.5018430850463097
- Combined Prediction Score: 0.8840130420751316
- Mean Citation Score: 235.220626
- Max Citation Score: 239.79797
- Similarity Product: 163.46221275198937

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