PATENT CLAIM ANALYSIS

Application Number: 15869258
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["257", "407000"]

Abstract:
Embodiments of the present invention are directed to the wet stripping of an organic planarization layer (OPL) using reversible UV crosslinking and de-crosslinking. In a non-limiting embodiment of the invention, an interlayer dielectric is formed over a substrate. A trench is formed in the interlayer dielectric. A work function metal is formed over the interlayer dielectric such that a portion of the work function metal partially fills the trench. A UV sensitive OPL is formed over the work function metal such that a portion of the UV sensitive OPL fills the trench. The UV sensitive OPL can be crosslinked by applying light at a first UV frequency and de-crosslinked by applying light at a second UV frequency.

Claim (Index 14):
A method for forming a semiconductor device, the method comprising:\n forming a UV sensitive organic planarization layer (OPL) over a substrate, the UV sensitive OPL comprising a functional group that can be crosslinked by applying light at a first UV frequency and de-crosslinked by applying light at a second UV frequency; crosslinking the UV sensitive OPL; forming an antireflective coating over the crosslinked UV sensitive OPL; removing a portion of the crosslinked UV sensitive OPL to expose a surface of the substrate; de-crosslinking the UV sensitive OPL; and removing the de-crosslinked UV sensitive OPL.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 86.0
- Lexical Diversity: 2.13559
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15479567', '14317003', '15472370', '14665704', '14459407']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9079666876118349
- 35 USC 102 Novelty (BERT): 0.4636083561467231
- Combined Prediction Score: 0.8635308544653236
- Mean Citation Score: 157.177168
- Max Citation Score: 160.12979
- Similarity Product: 125.45372334456802

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