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90/015,928SEMICONDUCTOR DEVICE HAVING VIA CONNECTING BETWEEN INTERCONNECTS7,439,623Open

Status

Determination - Reexamination Ordered

Filed

Feb 3, 2026

Last Updated

Mar 10, 2026

Art Unit

3991

Requester

Unknown

Requester Law Firm

Foley & Lardner, LLP

Requested By

Third Party

P.O. Law Firm

Michael J. Cherskov

Sector (CPC)

HElectrical & Electronic
H01Electrical Components
H01LSemiconductor Devices

USPC

257Active Solid-State Devices (E.g., Transistors, Solid-State Diodes)

Reexam History (23 events)

Mar 10, 2026MREXORX - Mail Ex Parte Request for Reexamination Granted
Feb 17, 2026DOCKCase Docketed to Examiner in GAU
Feb 17, 2026MRXNReexamination Formalities Notice Mailed
Feb 17, 2026MRXNReexamination Formalities Notice Mailed
Feb 17, 2026COMPApplication Is Now Complete
Feb 13, 2026RXPCOMCompletion of Preprocessing - Released to Assigned GAU
Feb 12, 2026RXTTLRPTTitle Report
Feb 12, 2026RXNREQAUNotice of assignment of reexamination request
Feb 12, 2026RXNREQFDNotice of reexamination request filing date
Feb 4, 2026RXRLFReExam Litigation Found
Feb 4, 2026PRXRParalegal Reexam Review Complete
Feb 4, 2026RXLITSRReexam Litigation Search Conducted
Feb 3, 2026FTFIFITF set to NO - revise initial setting
Feb 3, 2026RXC/SRCertificate of Service
Jan 30, 2026RXOSUBReceipt of Original Ex Parte Reexam Request
Jan 30, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Jan 30, 2026RXAF/DRReexam - Affidavit(s), Declaration(s) and/or Exhibit(s) Filed by Third Party Requester
Jan 30, 2026BIG.Entity Status Set To Undiscounted (Initial Default Setting or Status Change)
Jan 30, 2026RCCPRX - Concurrent Proceedings Notice
Jan 30, 2026RXOSUB.RReexamination requested by third party requester
Jan 30, 2026RXC/SRCertificate of Service
Jan 30, 2026RXIDS.RReexam - Information Disclosure Statement Filed by Third Party Requester
Jan 30, 2026RXRLFReExam Litigation Found

Prosecution, PTAB & CAFC

PTAB Proceedings (IPR, PGR, CBM, DER)

IPR2025-01212IPR — Discretionary Denial

Petitioner

Taiwan Semiconductor Manufacturing Company Ltd.

Petition Filed

Jul 25, 2025

Institution

Nov 20, 2025

Decision

Nov 20, 2025

Terminated

Nov 20, 2025

IPR2025-01211IPR — Discretionary Denial

Petitioner

Taiwan Semiconductor Manufacturing Company, Ltd.

Petition Filed

Jul 25, 2025

Institution

Nov 20, 2025

Decision

Nov 20, 2025

Terminated

Nov 20, 2025

Federal Circuit (CAFC)

None found

Terminal Disclaimer

None found

Prosecution History

None found

Maintenance Fees

Grant
Oct 21, 2008
3.5-yr
Apr 21, 2012
7.5-yr
Apr 21, 2016
11.5-yr
Apr 21, 2020
Paid Mar 16, 2020
Expiry
Oct 4, 2025

Entity Status

Large Entity

Expires

Oct 4, 2025 (expired)

Term Adjustment

+306 days (~0.8 yr)

Assignments

20052006200720082009201020112012201320142015201620172018201920202021202220232024FiledTAKESHI HARADAMATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.PANASONIC CORPORATIONPANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.NUVOTON TECHNOLOGY CORPORATION JAPANADVANCED INTEGRATED CIRCUIT PROCESS LLC
AssignmentReel/Frame: 016067/0624Recorded: Dec 2, 2004

From

TAKESHI HARADAInventor
Nov 24, 2004
→

To

MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Name ChangeReel/Frame: 022434/0348Recorded: Mar 23, 2009

From

MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Oct 1, 2008
→

To

PANASONIC CORPORATION

AssignmentReel/Frame: 052755/0917Recorded: May 27, 2020

From

PANASONIC CORPORATION
May 21, 2020
→

To

PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.

Name ChangeReel/Frame: 067711/0965Recorded: Jun 12, 2024

From

PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.
Mar 19, 2024
→

To

NUVOTON TECHNOLOGY CORPORATION JAPAN

AssignmentReel/Frame: 068118/0314Recorded: Jul 30, 2024

From

NUVOTON TECHNOLOGY CORPORATION JAPAN
Jul 30, 2024
→

To

ADVANCED INTEGRATED CIRCUIT PROCESS LLC