Polishing composition, production method therefor, and polishing method and production method for substrate, using polishing composition
The present invention provides a polishing composition with which it is possible to decrease a level difference to be unintentionally generated between dissimilar materials and a level difference to be unintentionally generated between coarse and dense portions of a pattern. The present invention re...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
09.05.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention provides a polishing composition with which it is possible to decrease a level difference to be unintentionally generated between dissimilar materials and a level difference to be unintentionally generated between coarse and dense portions of a pattern. The present invention relates to a polishing composition which contains abrasive grains having an average primary particle size of 5 to 50 nm, a level difference modifier containing a compound with a specific structure, having an aromatic ring and a sulfo group or a salt group thereof which is directly bonded to this aromatic ring, and a dispersing medium and of which the pH is less than 7. |
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Bibliography: | Application Number: US201816492835 |