FinFET Interconnect Patent Landscape 2026
Taiwan Semiconductor Manufacturing Co. (TSMC) commands this field by a wide margin, holding a dominant position among the top filers in the hundred largest filers. Annual filing volume peaked in 2017 and has eased steadily since, signaling a maturing technology where the core IP positions are largely established.
TSMC leads a heavily concentrated field with a wide tier gap
Taiwan Semiconductor Manufacturing Co. (TSMC) ranks first with 1,120 patent records, placing it in a category of its own relative to all other applicants. GlobalFoundries US and IBM follow at 286 and 275 patent records respectively, forming a distinct second tier.
The top five filers account for 75% of the combined total among the hundred largest filers, indicating unusually high concentration. The gap between TSMC and the second-ranked applicant is roughly fourfold, making TSMC’s positional advantage structurally difficult to close in the near term.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Taiwan Semiconductor Manufacturing Co. (TSMC) | 1,120 | |
| 2 | GlobalFoundries US Inc. | 286 | |
| 3 | IBM Corporation | 275 | |
| 4 | Intel Corporation | 123 | |
| 5 | GlobalFoundries Inc. | 79 | |
| 6 | Qualcomm Incorporated | 45 | |
| 7 | Elpis Tech Inc. | 34 | |
| 8 | Samsung Electronics Co., Ltd. | 34 | |
| 9 | STMicroelectronics Inc. | 34 | |
| 10 | Parabellum Strategic Opportunities Fund LLC | 33 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Advanced Micro Devices, Inc. (AMD) | 29 | |
| 12 | Synopsys, Inc. | 29 | |
| 13 | Adeia Semiconductor Solutions LLC | 24 | |
| 14 | Semiconductor Manufacturing International (Shanghai) Corporation | 20 | |
| 15 | Alsephina Innovations Inc. | 20 | |
| 16 | Apple Inc. | 19 | |
| 17 | Micron Technology, Inc. | 19 | |
| 18 | imec (Interuniversity Microelectronics Centre) | 18 | |
| 19 | Texas Instruments Incorporated | 17 | |
| 20 | United Microelectronics Corporation | 13 |
Leaders’ deep portfolios in H01L semiconductor device classes reflect sustained, systematic investment across device design, fabrication, and integration — suggesting that new entrants face a high barrier to establishing broad freedom to operate in core FinFET interconnect architectures.
Filing counts for 2024 and 2025 are substantially under-counted due to typical patent publication lags of 18–24 months; apparent recent low values should not be interpreted as a real acceleration of decline. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume has contracted from its 2017 peak; H01L dominates the technology mix
Two views together characterize the field: an annual trend that shows a sustained contraction from the 2017 peak, and a technology-branch breakdown that reveals heavy concentration in semiconductor device classes alongside a set of smaller adjacent branches.
Annual filing trend
Filings peaked in 2017 at 252 and have declined each subsequent year through 2023, consistent with a post-peak lifecycle. Values for 2024, 2025, and 2026 reflect publication lag and should be treated as incomplete rather than as evidence of further acceleration in the decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) accounts for the dominant share of patent records, with H10D (Semiconductor devices, general) and H10B (Memory device manufacture) forming a secondary layer. Branches such as H10N, G11C, and G06F each hold a small fraction, indicating that application areas beyond core device and memory integration remain 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.
High density metal-insulator-metal capacitor
A semiconductor structure with a nanosheet device region with GAA nanosheet FETs on a bottom dielectric isolation layer. The GAA nanosheet FETs connect by a frontside contact to the frontside back-end-of-line (BEOL) interconnect wiring and by a backside contact to the backside BEOL interconnect wiring. The semiconductor structure includes a finFET device… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Fin structure of FinFET | 1,322 |
| 2 | FinFET device having a channel defined in a diamon… | 540 |
| 3 | Fabrication of a vertical fin field effect transis… | 429 |
| 4 | FIN field effect transistor | 330 |
| 5 | Fin-like field effect transistor (finfet) device a… | 324 |
| 6 | Method and structure for a 1T-RAM bit cell and macro | 283 |
| 7 | Narrow fin FinFET | 275 |
| 8 | FinFET SRAM cell using low mobility plane for cell… | 274 |
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 a past-peak filing trend, extreme concentration, structured collaboration, and U. S.-centric jurisdiction coverage shapes both the risk profile and the opportunity set for new and existing participants.
Field is in decline from a 2017 peak
The lifecycle stage is Decline: annual filings have eased back from the 2017 peak of 252 records and have continued to fall through 2023. This indicates that the core FinFET interconnect design space is substantially mapped, and incremental patent-building in established sub-areas offers diminishing differentiation. R&D investment is better directed at adjacent branches or next-generation architectures where IP density is lower.
Post-peakTSMC holds a structurally dominant position
The top five filers represent 75% of the combined total among the hundred largest filers, with TSMC alone accounting for 1,120 patent records — roughly four times the second-ranked filer. This degree of concentration means that design-around and licensing considerations are unavoidable for most new entrants. Challengers such as GlobalFoundries US (286 records) and IBM (275 records) occupy a distinct second tier that is itself well above the remainder of the field.
High concentrationIBM–GlobalFoundries axis is the dominant co-filing partnership
The most active co-filing pair is IBM and GlobalFoundries, with 50 joint records — far exceeding any other pair. IBM and STMicroelectronics, and GlobalFoundries and STMicroelectronics, each account for 16 joint records, reflecting a triangle of foundry and IDM collaboration. These relationships suggest that key process-integration knowledge has been developed cooperatively and may be reflected in jointly held IP that complicates freedom-to-operate analysis for outsiders.
Structured alliancesU.S. is the overwhelmingly dominant jurisdiction
The United States accounts for 2,078 patent records, far exceeding all other jurisdictions. Europe (EPO) and WIPO (PCT) follow at 81 and 78 records respectively, with China at 59 and Taiwan at 52. The strong U.S. skew reflects both the home-country filing strategies of U.S.-headquartered leaders and the commercial primacy of the U.S. semiconductor market. Non-U.S. coverage is relatively thin, which may present both risk (gaps in protection) and opportunity (lower competitive density in certain markets).
U.S.-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 Corporation | GlobalFoundries Inc. | 50 |
| IBM Corporation | STMicroelectronics Inc. | 16 |
| GlobalFoundries Inc. | STMicroelectronics Inc. | 16 |
| GlobalFoundries Inc. | GlobalFoundries US Inc. | 9 |
| STMicroelectronics Inc. | STMicroelectronics (Crolles 2) SAS | 6 |
| IBM Corporation | IBM United Kingdom Ltd. | 3 |
| IBM Corporation | IBM China Co., Ltd. | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
TSMC leads by a wide margin; IBM and GlobalFoundries anchor the second tier
The top players are all focused on H01L semiconductor device sub-classes, reflecting the core device and process-integration nature of FinFET interconnect IP. Trajectory diverges: established leaders are filing at reduced rates, while several smaller players are emerging as new entrants.
Taiwan Semiconductor Manufacturing Co. (TSMC)
TSMC holds 1,120 patent records, anchoring all three leading H01L sub-classes (H01L 29, H01L 21, and H01L 27) with the highest counts in each. Its recent filing trend shows a decline of 43% versus the prior period, consistent with the field-wide post-peak pattern rather than a strategic retreat — the base portfolio remains by far the largest in the field.
patent records: 1,120GlobalFoundries US Inc.
GlobalFoundries US ranks second with 286 patent records, concentrated in H01L 29, H01L 21, and H01L 27 — the same core classes as TSMC. Recent filing momentum shows it as a new entrant in the most recent period, suggesting that its current activity is building from a relatively low recent base. Its parent entity GlobalFoundries Inc. contributes an additional 79 patent records, and the two entities have 9 joint records between them.
patent records: 286| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Taiwan Semiconductor Manufacturing Co. (TSMC) | 173 | ▼ -43% |
| IBM Corporation | 13 | ▼ -70% |
| Intel Corporation | 13 | ▼ -41% |
| STMicroelectronics Inc. | 2 | ▲ new entrant |
| Qualcomm Incorporated | 9 | ▲ new entrant |
| GlobalFoundries US Inc. | 4 | ▲ new entrant |
| Apple Inc. | 17 | ▲ new entrant |
Under-served branches adjacent to the core FinFET interconnect domain
Several IPC branches appear at lower density relative to the dominant H01L core. These are observations of relative sparsity; whether they represent actionable opportunities depends on technical fit and a realistic entry path.
H10B · Memory device manufacture
H10B holds 322 patent records — sizable in absolute terms but representing only 8% of the total IPC-level count, which is modest given the strategic importance of FinFET-based memory integration (e.g., SRAM bit cells). The most-cited patents in the corpus already include FinFET SRAM cell work, indicating recognized technical value. Teams with process expertise in both FinFET fabrication and memory cell integration could find this branch underrepresented relative to commercial relevance, and the IBM–GlobalFoundries–STMicroelectronics collaboration triangle has produced joint work in this area that could inform freedom-to-operate scoping.
Search this in Eureka →H10N · Other electric solid-state devices
H10N accounts for 52 patent records — roughly 1% of the IPC-level count — placing it among the sparser branches in the corpus. This class covers non-standard solid-state devices, including emerging materials and unconventional device structures that may interface with FinFET interconnect layers. The low density suggests that researchers exploring novel device–interconnect integration schemes (e.g., phase-change, ferroelectric, or spintronic elements co-integrated with FinFET back-end) would encounter limited prior IP, though a thorough freedom-to-operate search across the dominant H01L classes would still be necessary given the breadth of TSMC’s and IBM’s core portfolios.
Search this in Eureka →How leaders differ by technology route across H01L sub-classes
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) |
|---|---|---|---|---|---|
| Taiwan Semiconductor Manufacturing Co. (TSMC) | Strong · 1,066 | Strong · 879 | Strong · 600 | Moderate · 228 | Emerging · 211 |
| IBM Corporation | Strong · 404 | Strong · 325 | Strong · 204 | Emerging · 78 | Moderate · 83 |
| GlobalFoundries Inc. | Strong · 305 | Strong · 233 | Moderate · 124 | Emerging · 48 | Emerging · 43 |
| Intel Corporation | Strong · 122 | Strong · 95 | Strong · 68 | Moderate · 35 | Moderate · 30 |
| STMicroelectronics Inc. | Strong · 53 | Strong · 45 | Strong · 27 | Moderate · 15 | Emerging · 8 |
| Advanced Micro Devices, Inc. (AMD) | Strong · 45 | Strong · 42 | Moderate · 12 | Absent | Absent |
| Qualcomm Incorporated | Strong · 34 | Strong · 19 | Strong · 28 | Absent | Moderate · 7 |
Frequently asked questions
The corpus comprises 1,218 patent families in scope. The U.S. alone accounts for 2,078 patent records at the jurisdictional level, reflecting multi-country filings within those families.
Taiwan Semiconductor Manufacturing Co. (TSMC) is the leading filer with 1,120 patent records, roughly four times the volume of the second-ranked applicant, GlobalFoundries US Inc. (286 records).
No. Annual filings peaked in 2017 at 252 records and have declined each year since, reaching 95 in 2023. Values for 2024 and beyond are incomplete due to publication lag and should not be read as a floor. The lifecycle stage is classified as Decline.
IBM and GlobalFoundries form the most active co-filing pair with 50 joint records. IBM and STMicroelectronics, and GlobalFoundries and STMicroelectronics, each account for 16 joint records, forming a three-way collaborative cluster that has been particularly active in this domain.
The United States is dominant with 2,078 patent records. Europe (EPO) follows at 81 records, WIPO (PCT) at 78, China at 59, and Taiwan at 52. Coverage outside the U.S. is relatively thin across the field.
H10N (Other electric solid-state devices) holds only 52 patent records, and G11C (Static and digital memories) holds 51 — each at roughly 1% of the IPC-level count. H10B (Memory device manufacture) at 322 records and H10P at 113 records are also relatively sparse given their commercial relevance. These are observations of lower IP density; a full freedom-to-operate assessment against the dominant H01L portfolio is still required.
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Disclaimer. This page is generated from PatSnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
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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