Semiconductor devices — US PTAB Patent Cases
83 decisions indexed
Page 1 of 3 · 83 total
Texas Instruments Incorporated v.Greenthread, LLC
Texas Instruments challenged Greenthread's patent on CMOS fabrication methods using multiple prior art references under 35 U.S.C. § 103. The Board found the merits strong, leading to institution of the petition.
Western Digital Technologies, Inc. et al. v.Godo Kaisha IP Bridge 1
The PTAB found claims 1 and 2 unpatentable over the combination of Bowen and Parkin's prior art references. The Board concluded that combining these references taught all elements of the challenged claims, including a rationale for using amorphous, annealed CoFeB electrodes to achieve high TMR. Claims 3 and 4 were not found unpatentable.
Monolithic Power Systems, Inc. v.Greenthread, LLC
Monolithic Power Systems challenged Greenthread's patent on obviousness (35 U.S.C. § 103) in a semiconductor device context. The Petitioner successfully argued that the claimed graded dopant profiles were rendered obvious by combinations of prior art references, leading to institution.
Monolithic Power Systems, Inc. v.Greenthread, LLC
Monolithic Power Systems challenges Greenthread's semiconductor patent (8421195) before the PTAB, asserting that the claimed CMOS device improvements are obvious. The petitioner relies on multiple prior art references, including Onoda and Kawagoe, to demonstrate a lack of inventive step in creating electric drift fields via graded dopant concentration.
Monolithic Power Systems, Inc. v.Greenthread, LLC
Monolithic Power Systems challenged U.S. Patent No. 9,190,502 regarding semiconductor device claims (7 and 8) in an IPR proceeding. The Petitioner argues that the claimed graded dopant profiles and electric drift fields are obvious over prior art references like Onoda and Kawagoe. The Board has instituted the case for trial, finding the evidence compelling enough to proceed with the challenge.
Monolithic Power Systems, Inc. v.Greenthread, LLC
Monolithic Power Systems, Inc. initiated an IPR challenging Claim 44 of Greenthread's U.S. Patent No. 11,121,222 under 35 U.S.C. §103. The petition asserts that the claimed CMOS semiconductor fabrication structure is obvious based on prior art references including Onoda and Kawagoe.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
Micron Technology, Inc. filed an IPR challenging Yangtze Memory Technologies Company's 3D NAND Flash Memory patent (10658378). The petition asserts that the claimed features are obvious in light of prior art references like Toyama and Mushiga.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
Micron Technology filed a Petition challenging the validity of Yangtze Memory Technologies' '031 Patent, arguing that key claims are obvious over prior art references Kim and Tessariol. The petition focuses on 3D NAND memory structures, specifically multi-stack staircase designs and etch profiles. Micron asserts that the combination of teachings from these references renders the claimed features predictable and non-novel.
Micron Technology, Inc. et al. v.YANGTZE MEMORY TECHNOLOGIES COMPANY, LTD.
Micron Technology filed a Petition challenging claims of Yangtze Memory Technologies' 3D NAND Flash Memory patent (US 10,937,806). The challenge asserts that the claimed features are obvious under Section 103 in light of prior art from Toyama.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
Micron Technology filed a Petition to institute IPR against Yangtze Memory Technologies regarding 3D NAND Flash Memory claims, arguing the patents are obvious under 35 U.S.C. §103. The petition targets multiple claims based on combinations of prior art references (Seo, Choi, Nam, Izumi).
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
Micron Technology filed an IPR petition against Yangtze Memory Technologies regarding U.S. Patent No. 11,501,822, challenging its validity based on obviousness (35 U.S.C. § 103). The petitioner successfully established a reasonable likelihood of success on the merits and met all procedural requirements for institution.
IKEA Supply AG et al. v.Everlight Electronics Co., Ltd.
IKEA Supply AG has filed an IPR challenging U.S. Patent No. 7,554,126 held by Everlight Electronics Co., Ltd., asserting that the LED claims are unpatentable. The petition relies heavily on grounds of anticipation and obviousness using multiple prior art references. This challenge targets numerous structural features within light emitting diode technology.
Texas Instruments Incorporated v.Bell Semiconductor, LLC
Texas Instruments Incorporated filed an IPR challenging 12 claims of a Bell Semiconductor LLC patent related to Ball Grid Array (BGA) packaging reliability. The petitioner asserts that all claims are unpatentable over prior art by demonstrating predictable modifications using combinations of known semiconductor package designs and stress mitigation techniques.
Hanwha Solutions Corporation v.Maxeon Solar Pte. Ltd. et al.
Hanwha Solutions Corporation has filed a petition challenging Maxeon Solar Pte. Ltd.'s solar cell patent based on obviousness under 35 U.S.C. §103. The petitioner argues that the claimed features, such as FSF doping and gettering, are conventional and render the invention predictable when combined with existing prior art.
Hanwha Solutions Corporation v.Maxeon Solar Pte. Ltd.
The PTAB issued a Final Written Decision finding all 20 challenged claims unpatentable based on obviousness (103). The Petitioner successfully demonstrated that various combinations of prior art—including Froitzheim, Gan, Smith, and Li—would render the Maxeon patent obvious to a person skilled in the art.
Hanwha Solutions Corporation v.Maxeon Solar Pte. Ltd. et al.
The PTAB issued a final written decision denying Petitioner's challenge to claims 10-20 of Maxeon Solar Pte. Ltd.'s patent. The Board construed the key term 'metal impurities' as 'unintentional foreign metals,' rejecting arguments that intentional dopants qualified. Ultimately, the Petitioner failed to demonstrate unpatentability by a preponderance of the evidence.
Reed Semiconductor Corporation v.Monolithic Power Systems, Inc.
The PTAB issued a Final Written Decision finding multiple independent and dependent claims unpatentable. The grounds were anticipation (35 U.S.C. § 102) and obviousness (35 U.S.C. § 103), based on the prior art reference Tateishi.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
The PTAB found claims 1-7 and 18 unpatentable over the prior art reference Toyama under 35 U.S.C. § 103. The Board issued a Final Written Decision after addressing several key claim construction disputes regarding isolation regions, dielectric structures, and local contacts.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
The PTAB issued a Final Written Decision finding that the patent claims were unpatentable over combinations of prior art references. Specifically, the Petitioner successfully demonstrated obviousness against Zhao and Lee, leading to the rejection of nearly all challenged claims.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
The PTAB issued a Final Written Decision denying the petitioner's arguments that claims 1-6 of patent 11468957 were unpatentable. The Board found the anticipation argument failed because Suzuki did not disclose a distinct 'pre-verify stage,' and obviousness arguments failed due to insufficient establishment of required elements over prior art combinations.
Micron Technology, Inc. et al. v.YANGTZE MEMORY TECHNOLOGIES COMPANY, LTD.
The PTAB issued a Final Written Decision denying the Petitioner's challenge to four claims related to 3D memory devices. The Board found that the Petitioner failed to establish obviousness over prior art references, specifically Toyama.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
The PTAB issued a Final Written Decision finding claims 1-3 unpatentable over Kim due to obviousness (103), while claims 4 and 5 were found patentable. The Board construed the key term 'surrounding' as meaning 'all around' or 'encircling.'
Canadian Solar Inc et al. v.Maxeon Solar Pte. Ltd.
Canadian Solar Inc.'s IPR petition against Maxeon Solar Pte. Ltd. was instituted by the PTAB, finding a reasonable likelihood of success on grounds of obviousness (35 U.S.C. § 103). The Board determined that Petitioner presented sufficient evidence to support its arguments regarding prior art combinations in solar cell technology.
IKEA Supply AG et al. v.Everlight Electronics Co., Ltd.
The PTAB denied institution for an IPR petition challenging claims in a semiconductor device patent, citing failure to meet the particularity requirement under 35 U.S.C. § 312(a)(3). The Board found that several grounds were voluminous and excessive, particularly those involving complex prior art combinations.
IKEA Supply AG et al. v.Everlight Electronics Co., Ltd.
IKEA Supply AG successfully petitioned to institute an IPR against Everlight Electronics Co., Ltd.'s patent for LED carrier leadframes. The Board found a reasonable likelihood of unpatentability based on anticipation and obviousness grounds (102/103).
Innoscience America, Inc. et al. v.Infineon Technologies Austria AG
The PTAB denied the institution of an IPR against Infineon's patent, finding that Innoscience failed to demonstrate a reasonable likelihood of prevailing on obviousness grounds.
IKEA Supply AG et al. v.Everlight Electronics Co., Ltd.
IKEA Supply AG successfully convinced the PTAB to institute an IPR against Everlight Electronics Co., Ltd.'s patent 9640733. The Board found a reasonable likelihood of success on multiple grounds, including anticipation and obviousness based on prior art references like Kishikawa and Nakashima. This sets the stage for a full trial focusing on LED packaging technology.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
Micron Technology successfully petitioned to institute IPR proceedings against Yangtze Memory Technologies regarding claims related to 3D NAND memory technology. The Board found a reasonable likelihood of unpatentability for claim 10 based on Toyama's First Exemplary Structure, moving the case toward trial preparation.
Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.
Micron Technology, Inc. successfully convinced the PTAB that Yangtze Memory Technologies Company, Ltd.'s semiconductor patent was obvious over prior art reference Toyama et al., leading to institution of the IPR. The Board found Petitioner demonstrated a reasonable likelihood of prevailing on all 8 claims at issue based on structural limitations taught by the prior art.
Reed Semiconductor Corporation v.Monolithic Power Systems, Inc.
The PTAB denied institution for Reed Semiconductor Corporation's IPR against Monolithic Power Systems, Inc., finding Petitioner failed to adequately map claims onto prior art references. The denial was based on insufficient explanation regarding specific functional limitations in the voltage converter technology.
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