PATENT CLAIM ANALYSIS

Application Number: 15901317
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["438", "693000"]

Abstract:
Chemical Mechanical Planarization (CMP) polishing compositions comprising abrasive particles and additives to boost removal rates of films comprising elemental silicon such as poly-silicon and Silicon-Germanium.

Claim (Index 11):
A polishing method for chemical mechanical planarization of a semiconductor substrate comprising at least one surface containing elemental silicon, comprising the steps of:\n contacting the at least one surface containing elemental silicon with a polishing pad; delivering a polishing composition to the at least one surface containing elemental silicon; wherein the polishing composition comprising:\n abrasive particles ranging from 0.01 wt. % to 15 wt. %; \n a compound to enhance removal rate of films comprising elemental silicon ranging from 0.001 wt. % to 0.5 wt. %; and \n liquid carrier; and \n pH of the polishing composition is between 2 and 12; \n wherein \n the abrasive particles are selected from the group consisting of fumed silica, colloidal silica, fumed alumina, colloidal alumina, cerium oxide, ceria-silica composite particles, titanium dioxide, zirconium oxide, polystyrene, polymethyl methacrylate, mica, hydrated aluminum silicate, and combinations thereof; and \n the compound to enhance removal rate of films comprising elemental silicon is selected from the group consisting of isothiazolinone and derivatives, thiazolinone and derivatives, imidazolidine and derivatives, pyrozolidine and derivatives, imidazole and derivatives, pyrazole and derivatives, thiazole and derivatives, isothiazole and derivatives, thiazolidine and derivatives, isothiazolidine and derivatives, dithiolane and derivatives, triazole and derivatives, tetrazole and derivatives, thiadiazole and derivatives, acetone, benzophenone, acetophenone, acetylacetone, butanol, 3-hydroxybutanal, p-nitrobenzenzaaldehyde, cinnamaldehyde, vanillin, and combinations thereof; \n and polishing the at least one surface containing elemental silicon with the polishing composition.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 1.07692
- Patent Class: 438.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14800323', '15462463', '15268956', '15208334', '14993128']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8842237816110851
- 35 USC 102 Novelty (BERT): 0.5212921355554255
- Combined Prediction Score: 0.8479306170055191
- Mean Citation Score: 306.02488000000005
- Max Citation Score: 321.5235
- Similarity Product: 205.73636185526848

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