FinFET High-Mobility Channel Materials Patent Landscape
IBM leads a heavily concentrated field—the top five filers account for 61% of the hundred largest filers’ combined patent records—with the US remaining the dominant filing jurisdiction. The field peaked in 2017 and annual volume has since eased substantially, signaling a mature, post-peak phase where foundational device and process claims are well-established.
IBM leads a concentrated, post-peak competitive field
IBM tops the applicant ranking with 209 patent records, ahead of TSMC at 165 and Intel at 79—a three-tier structure that accounts for the majority of activity among the top hundred filers. The top five filers together hold 61% of the hundred largest filers’ combined total, confirming a high degree of concentration.
The gap between the first tier (IBM, TSMC) and the second tier (Intel, GlobalFoundries, STMicroelectronics) is substantial. Below rank five, counts drop sharply, with no challenger close enough to threaten the top two positions in the near term.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | IBM (International Business Machines Corporation) | 209 | |
| 2 | Taiwan Semiconductor Manufacturing Co., Ltd. (TSMC) | 165 | |
| 3 | Intel Corporation | 79 | |
| 4 | GlobalFoundries US Inc. | 52 | |
| 5 | STMicroelectronics Inc. | 39 | |
| 6 | Bell Semiconductor LLC | 32 | |
| 7 | Applied Materials, Inc. | 29 | |
| 8 | Samsung Electronics Co., Ltd. | 29 | |
| 9 | Qualcomm Incorporated | 28 | |
| 10 | Advanced Micro Devices, Inc. (AMD) | 19 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | GlobalFoundries Inc. | 18 | |
| 12 | Adeia Semiconductor Solutions LLC | 18 | |
| 13 | Microsoft Technology Licensing LLC | 15 | |
| 14 | Renesas Electronics Corporation | 13 | |
| 15 | Interuniversity Microelectronics Centre (IMEC VZW) | 13 | |
| 16 | Elpis Technologies Inc. | 11 | |
| 17 | STMicroelectronics International N.V. | 9 | |
| 18 | Tahoe Research Ltd. | 7 | |
| 19 | Atomera Incorporated | 7 | |
| 20 | United Microelectronics Corporation (UMC) | 6 |
IBM’s and TSMC’s dominant positions reflect deep, sustained investment in FinFET device architecture and channel engineering; both organizations have broad coverage across semiconductor device and fabrication process subclasses. This positions them as unavoidable prior-art holders for any new entrant working on strained or high-mobility channel integration.
Note that recent filing years (approximately 2024–2026) are subject to patent publication lag and likely under-represent true activity; trend reads for those years should be treated with caution. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Annual volume peaked in 2017 and has trended down; semiconductor device classes dominate the technology mix
Two charts together reveal a field that reached peak annual output in 2017 and has since contracted, while the technology composition remains tightly focused on core semiconductor device subclasses.
Annual filing trend
Filings peaked at 92 in 2017 and declined steadily through the early 2020s, with annual counts in the 18–25 range from 2020 onward. The most recent years (2024–2026) show very low counts that are likely further suppressed by publication lag and should not be read as a continuation of decline beyond what has already occurred.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) accounts for the overwhelming majority of classification records, with H10D (Semiconductor devices, general) as the second-largest branch. Smaller branches—H10P, H10B (Memory device manufacture), H10W, and B82Y (Nanotechnology applications)—each represent under 6% of the classification record total, indicating that activity outside the core device-engineering classes is comparatively sparse.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Integration of strained silicon germanium PFET dev…
A method of forming a finFET transistor device includes forming a crystalline, compressive strained silicon germanium (cSiGe) layer over a substrate; masking a first region of the cSiGe layer so as to expose a second region of the cSiGe layer; subjecting the exposed second region of the cSiGe layer to an implant process so as to amorphize a bottom portion… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Fin structure of FinFET | 1,323 |
| 2 | Barrier layer for FinFET channels | 603 |
| 3 | Semiconductor structure and device and methods of … | 483 |
| 4 | Semiconductor structure and device formed using se… | 410 |
| 5 | Strained silicon fin structure | 347 |
| 6 | Reduced resistance SiGe FinFET devices and method … | 334 |
| 7 | FET channel having a strained lattice structure al… | 327 |
| 8 | Strained silicon fin field effect transistor | 320 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the patent structure means for R&D investment decisions
The combination of high concentration, post-peak filing volume, and a dominant core-device classification focus creates a specific risk-and-opportunity profile for new entrants and existing players extending their roadmaps.
Decline stage: foundational claims well-established since 2017 peak
The lifecycle stage is Decline, with annual filing volume easing back from the 2017 peak. For R&D teams, this means the core FinFET channel-strain and barrier-layer solution space is densely claimed; incremental device-architecture work faces high prior-art density. Investment rationale shifts toward differentiated materials or process integrations not yet addressed by the existing corpus.
Post-peakTop five hold 61% share among the hundred largest filers
IBM, TSMC, Intel, GlobalFoundries, and STMicroelectronics collectively dominate the ranking. The tier gap between IBM (209 patent records) and the fifth-ranked filer (STMicroelectronics, 39 patent records) is steep. New entrants or mid-tier players seeking freedom-to-operate must design around a well-fortified core held by these five organizations.
High concentrationIBM–STMicroelectronics is the most active co-filing pair; foundry-research alliances dominate
The most active co-applicant pair is IBM and STMicroelectronics with 24 joint filings, followed by IBM and GlobalFoundries (13) and STMicroelectronics and GlobalFoundries (10). IBM and Renesas co-filed on 8 cases, and Samsung and IMEC partnered on 5. These alliances reflect the industry’s consortium-based R&D model for advanced process nodes, where IP is shared across foundry, IDM, and research-institute boundaries.
Alliance-drivenUS jurisdiction dominates; PCT and EPO provide limited international coverage
The United States is the primary filing jurisdiction by a wide margin. WIPO (PCT) and Europe (EPO) are the next two venues, followed by China, Taiwan, India, and South Korea at considerably lower counts. The skew toward US filings suggests that protection strategies outside North America—particularly in Asia-Pacific manufacturing regions—may be less comprehensive, which is relevant for teams assessing freedom-to-operate in those geographies.
US-centricGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| IBM (International Business Machines Corporation) | STMicroelectronics Inc. | 24 |
| IBM (International Business Machines Corporation) | GlobalFoundries Inc. | 13 |
| STMicroelectronics Inc. | GlobalFoundries Inc. | 10 |
| IBM (International Business Machines Corporation) | Renesas Electronics Corporation | 8 |
| Samsung Electronics Co., Ltd. | Interuniversity Microelectronics Centre (IMEC) | 5 |
| GlobalFoundries Inc. | Interuniversity Microelectronics Centre (IMEC) | 2 |
| IBM (International Business Machines Corporation) | IBM United Kingdom Ltd. Intellectual Property Department | 1 |
| STMicroelectronics Inc. | STMicroelectronics International N.V. | 1 |
| STMicroelectronics Inc. | STMicroelectronics (Crolles 2) SAS | 1 |
| GlobalFoundries Inc. | Renesas Electronics Corporation | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
IBM and TSMC lead across all semiconductor device subclasses; Intel maintains a focused position
The top three filers—IBM, TSMC, and Intel—each concentrate their portfolios in the core semiconductor device subclasses (H01L 29, H01L 21, H01L 27), but differ in scale and recent trajectory.
IBM (International Business Machines Corporation)
IBM leads with 209 patent records, spanning semiconductor device architecture (H01L 29), fabrication process (H01L 21), and integrated circuit structure (H01L 27) subclasses. Recent momentum shows a sharp retreat (▼ –79% in the recent period), consistent with the field’s post-peak decline and IBM’s well-known shift away from semiconductor manufacturing. The portfolio nevertheless represents the densest concentration of foundational channel-engineering claims in the corpus.
patent records: 209TSMC (Taiwan Semiconductor Manufacturing Co., Ltd.)
TSMC ranks second with 165 patent records, with a technology profile closely mirroring IBM’s across H01L 29, H01L 21, and H01L 27. Recent filing momentum is also down (▼ –65%), reflecting the broader field contraction. As the world’s leading contract foundry, TSMC’s portfolio is particularly relevant to process integration and device scaling; any new high-mobility channel integration for advanced nodes must account for TSMC’s claims in this space.
patent records: 165| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| IBM (International Business Machines Corporation) | 7 | ▼ -79% |
| Taiwan Semiconductor Manufacturing Co., Ltd. (TSMC) | 16 | ▼ -65% |
| Intel Corporation | 7 | ▼ -30% |
| Applied Materials, Inc. | 3 | ▼ -70% |
Under-served adjacent branches worth monitoring for targeted R&D
Several IPC branches adjacent to the dominant H01L core have comparatively low patent record counts, indicating that specific application areas have not attracted the same density of filings. These observations do not automatically translate to commercial opportunities, but may be worth examining for teams with relevant technical capabilities.
B82Y · Nanotechnology Applications
B82Y accounts for only 12 patent records and 1% of the classification total—the lowest share among branches with any meaningful technical overlap with FinFET channel engineering. Nanotechnology-specific claims covering nanowire or nanosheet channel materials with high-mobility properties appear sparse relative to the device-level H01L coverage. For teams working on gate-all-around (GAA) nanosheet devices or quantum-confined channel structures, this branch may represent an under-claimed framing that complements existing H01L filings.
Search this in Eureka →H10B · Memory Device Manufacture
H10B (Memory device manufacture) holds 61 patent records at 4% of the classification total—well below the dominant H01L branches. The intersection of high-mobility channel materials with embedded memory integration (e.g., FinFET-based SRAM or embedded DRAM on high-mobility substrates) is technically relevant as advanced nodes push for on-chip memory performance. The relatively sparse coverage in H10B suggests that memory-specific channel-engineering claims are not yet densely occupied, which may be of interest to teams working on integrated logic-memory platforms.
Search this in Eureka →How leading filers differ by technology subclass emphasis
Route coverage across the main technology branches in the current evidence set.
| Player | H01L 29 · Semiconductor devices | H01L 21 · Semiconductor devices | H01L 27 · Semiconductor devices | H10D 62 · Semiconductor devices (general) | H10D 84 · Semiconductor devices (general) |
|---|---|---|---|---|---|
| IBM (International Business Machines Corporation) | Strong · 262 | Strong · 208 | Moderate · 120 | Moderate · 104 | Moderate · 53 |
| Taiwan Semiconductor Manufacturing Co., Ltd. (TSMC) | Strong · 158 | Strong · 117 | Strong · 95 | Moderate · 70 | Moderate · 60 |
| Intel Corporation | Strong · 88 | Strong · 58 | Moderate · 22 | Moderate · 31 | Moderate · 28 |
| STMicroelectronics Inc. | Strong · 76 | Moderate · 38 | Strong · 44 | Moderate · 21 | Moderate · 20 |
| GlobalFoundries Inc. | Strong · 49 | Strong · 40 | Moderate · 17 | Moderate · 14 | Moderate · 15 |
| Advanced Micro Devices, Inc. (AMD) | Strong · 34 | Strong · 32 | Absent | Absent | Emerging · 4 |
| Qualcomm Incorporated | Strong · 28 | Moderate · 13 | Moderate · 7 | Moderate · 13 | Moderate · 6 |
Frequently asked questions
The corpus comprises 330 patent families. This is the base count for landscape-level analysis, while applicant rankings and jurisdiction counts are measured at the patent-record level and can exceed the family total because a single family may be filed in multiple jurisdictions or assigned to multiple applicants.
IBM (International Business Machines Corporation) leads with 209 patent records, ahead of TSMC at 165 and Intel at 79. The top five filers—IBM, TSMC, Intel, GlobalFoundries, and STMicroelectronics—account for 61% of the hundred largest filers’ combined patent records, indicating a highly concentrated competitive field.
Annual filings peaked at 92 in 2017 and have declined substantially since, reaching counts in the 18–25 range from 2020 onward. The lifecycle stage is classified as Decline. The most recent years (2024–2026) reflect publication lag and are likely undercounted, so the exact bottom of the curve should not yet be inferred from those data points.
The United States is the dominant jurisdiction by a wide margin. WIPO (PCT) and Europe (EPO) are the next two venues, followed by China, Taiwan, India, and South Korea at considerably lower counts. The strong US weighting means that freedom-to-operate assessments for manufacturing in Asian geographies may face a different risk profile than in the US.
IBM and STMicroelectronics are the most active co-filing pair with 24 joint filings, followed by IBM and GlobalFoundries (13), and STMicroelectronics and GlobalFoundries (10). These alliances reflect the consortium model common to advanced-node semiconductor R&D, where IP costs and technical risk are shared across foundry, IDM, and research-institute partners. Samsung and IMEC also co-filed on 5 cases.
The most-cited work covers fin structure fundamentals (1,323 citations), barrier layers for FinFET channels (603 citations), semiconductor structure and device methods (483 and 410 citations respectively), strained silicon fin structures (347 citations), reduced-resistance SiGe FinFET devices (334 citations), strained-lattice FET channels (327 citations), and strained silicon fin FETs (320 citations). These high citation counts confirm that foundational strain-engineering and barrier-layer claims are the most entrenched part of the prior-art landscape.
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Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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