PATENT CLAIM ANALYSIS

Application Number: 15997368
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["257", "401000"]

Abstract:
A method of forming self-aligned STI regions extending over portions of a Si substrate to enable the subsequent formation of epitaxially grown embedded S/D regions without using a lithography mask and the resulting device are provided. Embodiments include forming a STI etch mask with laterally separated openings over a Si substrate; forming shallow trenches into the Si substrate through the openings; forming first through fourth oxide spacers on opposite sidewalls of the shallow trenches and the openings; forming a deep STI trench between the first and second oxide spacers and between the third and fourth oxide spacers down into the Si substrate; forming a STI oxide layer over the first through fourth oxide spacers and a portion of the STI etch mask, the STI oxide layer filling the deep STI trenches; and planarizing the STI oxide layer down to the portion of the STI etch mask.

Claim (Index 18):
The method according to  claim 15 , comprising forming the STI etch mask of nitride.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 94.0
- Lexical Diversity: 2.48387
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14716938', '14461015', '14658279', '14858412', '14639159']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.925064205892018
- 35 USC 102 Novelty (BERT): 0.5412830585212094
- Combined Prediction Score: 0.886686091154937
- Mean Citation Score: 308.345776
- Max Citation Score: 405.71188
- Similarity Product: 273.82207969829085

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