Invention Grant
- Patent Title: Cleaning composition useful in semiconductor integrated circuit fabricating
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Application No.: US10186777Application Date: 2002-07-01
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Publication No.: US07067465B2Publication Date: 2006-06-27
- Inventor: Donald L. Yates , Max F. Hineman
- Applicant: Donald L. Yates , Max F. Hineman
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Schwegman, Lundberg, Woessner & Kluth, P.A.
- Main IPC: H01L21/302
- IPC: H01L21/302 ; H01L21/00 ; C11D7/08 ; C09K13/00

Abstract:
A composition for use in semiconductor processing wherein the composition comprises water, phosphoric acid, and an organic acid; wherein the organic acid is ascorbic acid or is an organic acid having two or more carboxylic acid groups (e.g., citric acid). The water can be present in about 40 wt. % to about 85 wt. % of the composition, the phosphoric acid can be present in about 0.01 wt. % to about 10 wt. % of the composition, and the organic acid can be present in about 10 wt. % to about 60 wt. % of the composition. The composition can be used for cleaning various surfaces, such as, for example, patterned metal layers and vias by exposing the surfaces to the composition.
Public/Granted literature
- US20020165105A1 Cleaning composition useful in semiconductor integrated circuit fabricating Public/Granted day:2002-11-07
Information query
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