Taiwan Semiconductor Manufacturing Company Ltd. v. Marlin Semiconductor Ltd. et al. - IPR2026-00261

Explore the PTAB proceeding IPR2026-00261 filed by Taiwan Semiconductor Manufacturing Company Ltd. against Marlin Semiconductor Ltd. et al. on Feb 13, 2026. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
IPR2026-00261
Filing Date
Feb 13, 2026
Petitioner
Taiwan Semiconductor Manufacturing Company Ltd.
Respondent
Marlin Semiconductor Ltd. et al.
Status
Pending
Respondent Application Number
12198128
Respondent Tech Center
2800
Respondent Patent Number
7888195

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Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

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Declaration of Robert W. Bahr

May 26, 2026EXHIBITPETITIONER

Patent Assignment Abstract of Title for the ’195 Patent

May 26, 2026EXHIBITPETITIONER

Taiwan Semiconductor Manufacturing Company Ltd., 7nm Technology

May 26, 2026EXHIBITPETITIONER

Jeremy Bowman, Nasdaq, This 1 Number May Ensure TSMC’s Market Dominance, The Motley Fool

May 26, 2026EXHIBITPETITIONER

“Another Historic Investment Secured Under President Trump,” The White House, Published Mar. 3, 2025,

May 26, 2026EXHIBITPETITIONER

“IPValue Affiliate Licenses Samsung to Marlin Semiconductor Patent Portfolio,” IPValue

May 26, 2026EXHIBITPETITIONER

“IPValue Affiliate Licenses Samsung to Marlin Semiconductor Patent Portfolio"

May 26, 2026EXHIBITPETITIONER

“CNBC Transcript: United States Commerce Secretary How-ard Lutnick Speaks with CNBC’s Brian Sullivan on ‘The Ex-change’ Today"

May 26, 2026EXHIBITPETITIONER

“Removing Barriers to American Leadership in Artificial Intelligence,” The White House", Published Jan. 23, 2025

May 26, 2026EXHIBITPETITIONER

TSMC Annual Report 2024 (Excerpts),

May 26, 2026EXHIBITPETITIONER

“Ansys Strengthens Collaboration with TSMC on Advanced Node Processes Certification and 3D-IC Multiphysics Design Solutions.,” Published Apr. 23, 2025

May 26, 2026EXHIBITPETITIONER

TSMC-Cadence Press Release, Published Apr. 24, 2025

May 26, 2026EXHIBITPETITIONER

J. Klearman, “Decoding TSMC’s Contribution to the AI and 5G Ecosystem,” Nov. 20, 2024

May 26, 2026EXHIBITPETITIONER

R. O’Brien, “Trump on China – Putting America First,”

May 26, 2026EXHIBITPETITIONER

Certain Foreign-Fabricated Semiconductor Devices, Products Containing the Same, and Components Thereof, Inv. No. 337-TA1443, Doc ID 843707

May 26, 2026EXHIBITPETITIONER

Director John A. Squires, Memorandum on Additional Discre-tionary Institution Considerations – U.S. Manufacturing and Small Business Use of AIA Proceedings (March 11, 2026)

May 26, 2026EXHIBITPETITIONER

TSMC Arizona Economic Impact, available at https://www.tsmc.com/static/abouttsmcaz/index.htm (last ac-cessed April 12, 2026)

May 26, 2026EXHIBITPETITIONER

Greater Phoenix Semiconductor Ecosystem February 2025 Report, available at https://www.gpec.org/industries-operations/industries-in-greater-phoenix/semiconductors

May 26, 2026EXHIBITPETITIONER

Google Patents – U.S. Pub. No. US 2007/0138559 available at https://patents.google.com/patent/US20070138559A1/en?oq= US20070138559

May 26, 2026EXHIBITPETITIONER

Google Patents – U.S. Pub. No. US 2005/0233527 available at https://patents.google.com/patent/US20050233527A1/en?oq= US20050233527

May 26, 2026EXHIBITPETITIONER

Russ Wiles, US Commerce Secretary Visits TSMC Complex in Phoenix as Work on Third Fab Starts, Arizona Republic (April 30, 2025)

May 26, 2026EXHIBITPETITIONER

VectorCapital.com About Webpage, available at https://www.vectorcapital.com/about (last accessed April 22, 2026)

May 26, 2026EXHIBITPETITIONER

VectorCapital.com IPValue Management Investment Case Study Webpage, available at https://www.vectorcapital.com/investments/case-study/ipvalue-management (last accessed April 22, 2026)

May 26, 2026EXHIBITPETITIONER

IPValue.com Portfolios Webpage, available at https://www.ipvalue.com/portfolios

May 26, 2026EXHIBITPETITIONER

Responses of John A. Squires to Senate Judiciary Comm. Questions for the Record (May 28, 2025), available at https://www.judiciary.senate.gov/imo/media/doc/2025-05-21_qfrresponses_squires.pdf

May 26, 2026EXHIBITPETITIONER

Petitioner's Opposition to Patent Owner's Request for Discretionary Denial

May 26, 2026PAPERPETITIONER

Patent Owner's Preliminary Response

May 26, 2026PAPERPATENT OWNER

Ex 2001 2026-05-26 IPR2026-00261 '195 McAlexander Declaration

May 26, 2026EXHIBITPATENT OWNER

Ex 2002 Peter Van Zant Microchip Fabrication 4th Edition

May 26, 2026EXHIBITPATENT OWNER

Ex 2003 CV_J. McAlexander

May 26, 2026EXHIBITPATENT OWNER

Patent Owner's Request for Discretionary Denial of Institution

Apr 24, 2026PAPERPATENT OWNER

Ex. 2101 Foundries to Grow Faster than Integrated Circuits in 2016

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2102 Ranked_Semiconductor Foundries by Revenue Share

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2103 US7888195B2 - Metal gate transistor and method for fabricating the same - Google Patents

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2104 2026-04-24 IPR2026-00261 '195 Ahern Declaration

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2105 Memo fr J. Squires to all PTAB Users (Mar. 11, 2026)

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2106 chips-design-manufacturing-fact-sheet

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2107 US Semiconductor Manufacturing _ CHIPS and Science Act _ Intel®

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2108 samsung-factsheet-chips-122024-final

Apr 24, 2026EXHIBITPATENT OWNER

Ex. 2109 Samsung CHIPS Act Grant Brings Its Leading Edge Plus R&D To Texas

Apr 24, 2026EXHIBITPATENT OWNER

Notice: Notice filing date accorded

Feb 24, 2026PAPERBOARD

Notice: Mandatory Notice

Feb 18, 2026PAPERPATENT OWNER

Notice: Power of Attorney

Feb 18, 2026PAPERPATENT OWNER

U.S. Patent No. 7,888,195

Feb 13, 2026EXHIBITPETITIONER

Excerpts from the Prosecution History of the ’195 Patent

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2007/0138559 (“Bohr”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2005/0233527 (“Brask”)

Feb 13, 2026EXHIBITPETITIONER

Amazawa et al.

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2009/0242997 (“Yu”)

Feb 13, 2026EXHIBITPETITIONER

Wang et al., Chemical Mechanical Polishing for Selective CVD-W

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2009/0315124 (“Chen”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2006/0180851 (“Lee”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pat. No. 6,573,134 (“Ma”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pat. No. 7,390,709 (“Doczy ’709”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2006/0278934 (“Nagahama”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pat. No. 7,084,038 (“Doczy ’038”)

Feb 13, 2026EXHIBITPETITIONER

Mistry et al.

Feb 13, 2026EXHIBITPETITIONER

U.S. Pat. No. 7,211,869 (“Chan”)

Feb 13, 2026EXHIBITPETITIONER

Printout of USPTO Class Schedule for Class 438

Feb 13, 2026EXHIBITPETITIONER

Declaration of June Ann Munford

Feb 13, 2026EXHIBITPETITIONER

European Patent No. 2112687 (“Chang”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2008/0096383 (“Tigelaar”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Patent No. 6,225,168 (“Gardner”)

Feb 13, 2026EXHIBITPETITIONER

Devireddy et al.

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. 2006/0065939 (“Doczy ’939”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Patent No. 6,559,051 (“Buynoski”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. No. 2005/0051854 (“Cabral”)

Feb 13, 2026EXHIBITPETITIONER

A. Chatterjee et al.

Feb 13, 2026EXHIBITPETITIONER

U.S. Patent No. 7,176,090 (“Brask ’090”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. No. 2007/0037343 (“Colombo”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. No. 2008/0265322 (“Lin”)

Feb 13, 2026EXHIBITPETITIONER

U.S. Pub. No. 7,208,361 (“Shah”)

Feb 13, 2026EXHIBITPETITIONER

Petitioner's Power of Attorney

Feb 13, 2026PAPERPETITIONER

Petition: as filed

Feb 13, 2026PAPERPETITIONER

Declaration of Jack Lee, Ph.D.

Feb 13, 2026EXHIBITPETITIONER

Hofstein et al.

Feb 13, 2026EXHIBITPETITIONER