PATENT CLAIM ANALYSIS

Application Number: 15946107
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["438", "760000"]

Abstract:
Methods for seam-less gapfill comprising forming a flowable film by PECVD, annealing the flowable film with a reactive anneal to form an annealed film and curing the flowable film or annealed film to solidify the film. The flowable film can be formed using a higher order silane and plasma. The reactive anneal may use a silane or higher order silane. A UV cure, or other cure, can be used to solidify the flowable film or the annealed film.

Claim (Index 20):
A processing method comprising:\n providing a substrate surface having at least one feature thereon, the at least one feature extending a depth from the substrate surface to a bottom surface, the at least one feature having a width defined by a first sidewall and a second sidewall and an aspect ratio greater than or equal to about 25:1; forming a flowable silicon film by a PECVD process on the substrate surface and the first sidewall, second sidewall and bottom surface of the at least one feature, the flowable film filling the feature with substantially no seam formed, the PECVD process comprises a polysilicon precursor and a plasma comprising a plasma gas, the polysilicon precursor comprising one or more of disilane, trisilane, tetrasilane, neopentasilane or cyclohexasilane, the plasma gas comprises one or more of He, Ar, Kr, H 2 , N 2 , O 2 , O 3  or NH 3 , the plasma has a power less than or equal to about 200 W, and the PECVD process occurs at a temperature less or equal to about 100\u00b0 C.; exposing the flowable film to a post-treatment process to form an annealed film, the post-treatment process comprising an anneal reactant at an anneal temperature and anneal pressure, the anneal reactant comprising one or more of silane or disilane, the anneal temperature in the range of about 100\u00b0 C. to about 400\u00b0 C., and the anneal pressure in the range of about 100 T to about 500 T; and exposing the annealed film to a UV cure to solidify the film and form a substantially seam-free gapfill.

Metadata:
- Claim Count in Document: 31.0
- Percentile: 91.0
- Lexical Diversity: 2.02381
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15945117', '15936751', '15936740', '11925514', '11834581']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8506188159553709
- 35 USC 102 Novelty (BERT): 0.4846797639161589
- Combined Prediction Score: 0.8140249107514498
- Mean Citation Score: 234.396424
- Max Citation Score: 318.73584
- Similarity Product: 308.0618509848404

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test