GAA Gate-Channel Interface Patent Landscape 2026
The GAA gate-channel interface patent space is highly concentrated, with Taiwan Semiconductor Manufacturing Co. (TSMC) holding a commanding lead over all other filers. The field is in a growth stage, with annual filing volume rising on a multi-year basis and the dominant activity anchored in the United States.
TSMC leads a sharply concentrated field
TSMC sits at the top of the applicant ranking with 30 patent families, more than six times the count of the next-ranked filer, MediaTek, which holds 5 patent families. Intel follows in third place with 3 patent families.
The top five filers account for 93% of the combined total of the hundred largest filers — an unusually high concentration that signals a field dominated by a single incumbent rather than a competitive cluster of peers. The gap between TSMC and everyone else is structural, not marginal.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Taiwan Semiconductor Manufacturing Co. (TSMC) | 30 | |
| 2 | MediaTek Inc. | 5 | |
| 3 | Intel Corporation | 3 | |
| 4 | KOREA ADVANCED INST OF SCI & TECH | 2 | |
| 5 | Institute of Microelectronics, Chinese Academy of Sciences | 1 | |
| 6 | Applied Materials Inc. | 1 | |
| 7 | LG Electronics Inc. | 1 | |
| 8 | Marvell Asia Pte Ltd | 1 |
TSMC’s position implies that foundry-side gate-channel interface innovation is being internalized at the process-development level, while fabless and equipment players occupy narrow, complementary niches. New entrants face a strong incumbent with deep coverage across semiconductor device and process IPC classes.
The most recent 18–24 months of filing data are under-counted due to standard patent publication lag; the 2025–2026 figures should be treated as preliminary. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Rising annual filings anchored in semiconductor device classes
The filing trend and technology composition together show an expanding field dominated by core semiconductor device classifications, with a small but observable tail of adjacent material-science and memory branches.
Annual filing trend
Annual filings were negligible before 2019, then grew in a stepped pattern, reaching a visible high in 2024. The 2025 and 2026 figures are severely under-counted due to publication lag and should not be read as a slowdown.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) and H10D (Semiconductor devices, general) together account for the large majority of classified records, consistent with a field driven by transistor-architecture innovation. B82Y (Nanotechnology applications) appears as a meaningful secondary class, reflecting the nanowire and nanosheet channel geometries central to GAA design. Coating, crystal growth, and memory branches each carry only a handful of records, marking them as adjacent rather than core.
↗ 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.
Nanosheet gate-all-around transistor and method of…
The present disclosure relates to a nanosheet gate-all-around transistor and a method of manufacturing a nanosheet gate-all-around transistor. The nanosheet gate-all-around transistor includes: a substrate having a shallow trench isolation structure on a surface of the substrate; a nanosheet stacking portion provided above the substrate, where the nanosheet… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | CMOS implementation of germanium and III-V nanowir… | 67 |
| 2 | Gate structures for semiconductor devices | 27 |
| 3 | Gate-all-around metal-oxide-semiconductor transist… | 18 |
| 4 | Transistors with different threshold voltages | 12 |
| 5 | Gate structures for semiconductor devices | 7 |
| 6 | Gate structures for semiconductor devices | 6 |
| 7 | CMOS implementation of germanium and iii-v nanowir… | 6 |
| 8 | CMOS implementation of germanium and III-V nanowir… | 6 |
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 competitive structure means for R&D investment
Four dimensions — maturity, concentration, collaboration, and geography — define where risk and opportunity sit in this space.
Growth stage with rising annual volume
The lifecycle evidence classifies this field as Growth, with annual filings still rising and the multi-year window showing 71% recent growth. The field is not yet approaching saturation. Investment directed at core gate-channel interface claims faces a rising competitive baseline, but the window for establishing foundational positions remains open.
Growth stageSingle-incumbent dominance creates a narrow competitive tier
The top five filers account for 93% of the hundred largest filers’ combined total, and TSMC alone holds 30 of 40 total patent families in scope. The second tier — MediaTek, Intel, KAIST, and others — is thin and fragmented. For an R&D team outside TSMC, the practical question is whether to compete in the core architecture space or find a differentiated adjacent angle.
High concentrationNo co-applicant activity detected in this corpus
The collaboration evidence for this corpus is empty — no co-filed patents between distinct entities appear in the dataset. This is consistent with the foundry-led structure: TSMC and Intel tend to develop gate-channel interface IP internally. The absence of consortium or university-industry co-filings may also reflect the sensitivity of process-level IP in leading-edge logic.
No co-filing observedUS-centric filing with limited international coverage
The United States is the lead jurisdiction by a wide margin. Europe and China each account for only a small share of records, indicating that most applicants are prioritizing US patent protection over global coverage. For a competitor or licensee, this creates potential freedom-to-operate windows in European and Chinese markets, though commercial and regulatory contexts differ significantly.
US-dominantGo 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.
Co-filing pairs, ranked by the number of jointly-filed patent families.
TSMC dominates; Intel and new entrants occupy distinct technology niches
The applicant ranking is short and steeply tiered. TSMC’s lead is structural; the remaining players are best understood as niche or emerging participants rather than direct challengers.
Taiwan Semiconductor Manufacturing Co.
TSMC holds 30 patent families — 75% of the total corpus — with technology emphasis spanning H01L 29, H01L 21, and H01L 27 (semiconductor device structure, fabrication, and integrated circuits). Momentum data flags TSMC as a new entrant in the recent filing window with 20 recent filings, indicating that the bulk of its position has been built in the most recent filing period rather than over a long history.
families: 30Intel Corporation
Intel holds 3 patent families and shows a new-entrant momentum profile with 2 recent filings. Its technology emphasis spans H01L 21, H01L 29, and B82Y 10 (nanotechnology applications), reflecting Intel’s research-oriented approach to alternative channel materials such as III-V semiconductors and germanium nanowires — a differentiated angle relative to TSMC’s broader process coverage.
families: 3| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Taiwan Semiconductor Manufacturing Co. (TSMC) | 20 | ▲ new entrant |
| Intel Corporation | 2 | ▲ new entrant |
| Marvell Asia Pte Ltd | 1 | ▲ new entrant |
| Institute of Microelectronics, Chinese Academy of Sciences | 1 | ▲ new entrant |
Under-served branches adjacent to the core GAA space
Several IPC branches appear at low coverage in this corpus. These are observations of relative sparsity; technical value and entry-path plausibility vary by branch.
C23C · Coating & Surface Deposition
Only 1 patent record falls under C23C in this corpus, representing 1% of classified records. Gate-channel interface performance depends critically on dielectric and interfacial layer deposition (e.g., ALD of high-k oxides), making this a technically adjacent area. Applied Materials is the sole filer with C23C coverage here, suggesting that equipment-side deposition process IP is largely being filed outside this specific topic cluster. An equipment or materials company with ALD or CVD process expertise could find this a plausible differentiated entry angle, though the small corpus size limits certainty.
Search this in Eureka →H10B · Memory Device Manufacture
H10B accounts for 3 patent records — 4% of classified records — despite GAA architectures being actively evaluated for embedded SRAM and emerging memory integration. The sparsity may reflect that memory-specific GAA IP is being filed under different topic clusters rather than a genuine absence of activity. For a team working on GAA-based SRAM bitcells or embedded NVM, this adjacency is worth monitoring as the field matures and memory-logic integration tightens.
Search this in Eureka →How leading filers differ by technology route
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 30 · Semiconductor devices (general) | H10D 62 · Semiconductor devices (general) |
|---|---|---|---|---|---|
| Taiwan Semiconductor Manufacturing Co. (TSMC) | Strong · 29 | Strong · 24 | Strong · 17 | Moderate · 14 | Moderate · 14 |
| Intel Corporation | Strong · 7 | Strong · 7 | Strong · 6 | Emerging · 1 | Emerging · 1 |
| Korea Advanced Institute of Science and Technology (KAIST) | Strong · 2 | Strong · 2 | Absent | Absent | Absent |
Frequently asked questions
The corpus in scope contains 40 patent families. This is a compact, specialist corpus relative to broader GAA transistor filings, reflecting the specificity of the gate-channel interface topic.
Taiwan Semiconductor Manufacturing Co. (TSMC) leads with 30 patent families, accounting for the large majority of the total corpus. MediaTek is second with 5 patent families, and Intel is third with 3.
The lifecycle evidence classifies this field as Growth, with a 71% recent growth rate and annual filings trending upward through 2024. The field is not yet saturated; the most recent 18–24 months are under-counted due to publication lag.
The United States is the leading jurisdiction by a wide margin. Europe and China each account for only a small number of records, suggesting that applicants are prioritizing US protection and that international coverage outside the US is limited in this specific corpus.
The most-cited item in the corpus is a document on CMOS implementation of germanium and III-V nanowires, with 67 citations. The second-most-cited is a filing on gate structures for semiconductor devices, with 27 citations. These citation patterns point to foundational nanowire channel-material and gate-stack architecture work as the technical anchors of the field.
Yes. C23C (coating and surface deposition) and H10B (memory device manufacture) are both sparsely populated — 1 and 3 records respectively — relative to the core H01L classes. G11C (static and digital memories) and C30B (crystal growth) each carry only 1 record. These are observations of relative sparsity; whether they represent investable opportunities depends on an organization’s specific technical capabilities and market positioning.
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