Short Summary
Samsung Austin Semiconductor challenges the '802 Patent covering Chemical Mechanical Planarization (CMP) pad dressing technology. The Petitioner argues that prior art references, including Tsai et al., anticipate or render obvious all 21 claimed claims. This is a foundational challenge to the patent's validity in semiconductor manufacturing.
Detailed Summary
Samsung Austin Semiconductor, LLC and its affiliates have filed an IPR challenging the validity of U.S. Patent No. 9724802, which relates to Chemical Mechanical Planarization (CMP) pad dressing technology. The Petitioner asserts that the claims are invalid under both anticipation (35 U.S.C. § 102) and obviousness (35 U.S.C. § 103). The core of the challenge rests on prior art references, specifically Tsai et al., Sung’026, and Sung’146. Petitioner contends that these references disclose or render obvious key features of the claimed CMP pad dressers, such as specific tip variations and structural configurations, thereby establishing a prima facie case for invalidity across claims 1-21.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in Samsung Austin Semiconductor, LLC et al. vs Sung, Chien-Min is valuable context for structuring arguments or assessing risk in similar proceedings.
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