FinFET Thermal Management Patent Snapshot 2026
The FinFET thermal management patent corpus is small and sharply concentrated, with SMIC (Shanghai) holding the dominant position among a short list of seven ranked filers. The field is still expanding on a multi-year basis, though annual volume has eased from its 2017 peak and recent years remain further understated by publication lag.
SMIC Shanghai leads a tightly held, nascent corpus
SMIC Shanghai sits at the top of the applicant ranking with 6 patent records, followed by its Beijing affiliate and Renesas Electronics, each with 2 patent records. The top five filers account for 86% of the combined totals across the ranked applicants visible in this query, signalling an exceptionally narrow competitive base.
The tier gap between the leader and the rest of the field is pronounced: SMIC Shanghai’s 6 patent records are three times the next tier’s count. Outside the SMIC group, filings are essentially individual contributions, with Qualcomm, MediaTek, Anhui Dongke Semiconductor, and one independent inventor each holding a single patent record.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | SMIC (Semiconductor Manufacturing International Corporation) Shanghai | 6 | |
| 2 | SMIC (Semiconductor Manufacturing International Corporation) Beijing | 2 | |
| 3 | Renesas Electronics Corporation | 2 | |
| 4 | Liu Zhiwei | 1 | |
| 5 | Anhui Dongke Semiconductor Co., Ltd. | 1 | |
| 6 | Qualcomm Incorporated | 1 | |
| 7 | MediaTek Inc. | 1 |
SMIC’s visible position — reinforced by its Shanghai-Beijing intra-group collaboration — suggests that the most developed implementation knowledge in this specific intersection of FinFET architecture and thermal management sits within one vertically integrated foundry group. Challengers and fabless entrants have yet to build comparable depth.
The most recent filing years are subject to publication lag and likely understate current activity; treat the apparent decline from 2022 onward as provisional rather than confirmed. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Multi-year growth with H01L dominance and thin adjacent coverage
Annual filing activity and technology branch composition together describe a field that is growing on a multi-year basis but remains narrow in both scale and technical breadth, centred almost entirely on semiconductor device classification H01L.
Annual filing trend
Filings opened at 2 per year in 2017–2018, dropped to zero in 2019–2020, then stabilised at roughly one filing per year from 2021 through 2024. The three-year recent window sits well above the prior three-year window — a 200% increase — confirming multi-year expansion. The 2025–2026 data points should be read as incomplete due to publication lag, not as a confirmed halt.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) accounts for the overwhelming majority of IPC records at 13, with H10D and H10W each appearing only twice. This distribution reflects that thermal management work in this corpus is framed primarily through device structure and fabrication process claims rather than through system-level or packaging-oriented classifications.
↗ 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.
Semiconductor device, finfet transistor and fabric…
The present disclosure provides semiconductor devices, fin field-effect transistors and fabrication methods thereof. An exemplary fin field-effect transistor includes a semiconductor substrate; an insulation layer configured for inhibiting a short channel effect and increasing a heat dissipation efficiency of the fin field-effect transistor formed over the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Semiconductor device, finfet transistor and fabric… | 17 |
| 2 | Thermal-aware finfet design | 16 |
| 3 | Method and device for reducing finfet self-heating… | 11 |
| 4 | Semiconductor device, FinFET transistor and fabric… | 8 |
| 5 | 多沟道鳍式结构及其制备方法 | 3 |
| 6 | Semiconductor device | 3 |
| 7 | Finfet with local heatsinking and method of manufa… | 1 |
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 structure implies for R&D investment decisions
Four structural observations — maturity stage, concentration level, collaboration patterns, and geographic spread — frame the strategic context for any organisation evaluating entry or expansion in FinFET thermal management.
Growth stage, eased from 2017 peak
The lifecycle evidence classifies this field as Growth: the recent three-year filing window sits substantially above the prior three-year window. However, annual volume has eased from its 2017 peak, and the most recent years are further understated by publication lag. Organisations entering now face an active but not yet crowded space, with foundational claim positions still being consolidated.
Growth stageOne foundry group holds the majority of recorded positions
The top five filers account for 86% of the combined totals among the ranked applicants visible in this query, and SMIC’s Shanghai and Beijing entities together hold 8 of the 13 H01L records. This level of concentration in a small corpus means that a single new filer with a focused prosecution strategy could materially shift the competitive balance. The gap between the SMIC group and all other participants is large enough that challengers should expect to be building positions largely from scratch.
Highly concentratedIntra-group SMIC pairing and one external tie identified
Two co-filing relationships are evident in the evidence. SMIC Shanghai and SMIC Beijing have co-filed on 2 patent records, reflecting coordinated intra-group IP strategy. MediaTek and individual inventor Liu Zhiwei have co-filed on 1 patent record, suggesting an academic or contractor engagement. No broader cross-company consortia or university partnerships are visible at this corpus scale.
Thin external collaborationUS office leads; China is the only other jurisdiction with meaningful coverage
The United States accounts for 10 patent records and China for 3, with no other jurisdictions appearing in the evidence. This two-jurisdiction footprint is narrow relative to the global semiconductor industry, indicating that prosecution strategies outside the US and China — including Europe, Japan, South Korea, and Taiwan — remain largely unchallenged in this specific sub-field.
US + China onlyGo 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 |
|---|---|---|
| SMIC (Semiconductor Manufacturing International Corporation) Shanghai | SMIC (Semiconductor Manufacturing International Corporation) Beijing | 2 |
| MediaTek Inc. | Liu Zhiwei | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
SMIC Shanghai
SMIC Shanghai holds 6 patent records, the largest position in the corpus, spread uniformly across H01L 21 (fabrication processes), H01L 23 (device structures), and H01L 27 (integrated circuits). Its co-filing relationship with SMIC Beijing — which holds 2 patent records with an identical H01L focus — indicates a coordinated group strategy rather than independent parallel programmes. No momentum data is available for SMIC Shanghai in the applicant momentum evidence, placing it as the established incumbent.
patent records: 6Renesas Electronics
Renesas Electronics holds 2 patent records concentrated in H01L 23 and H01L 27, with one record in H01L 21. Its focus on device structure and integrated-circuit classifications suggests a product-oriented angle on FinFET thermal management rather than a pure process-development position. NXP Semiconductors is identified in the momentum evidence as a new entrant with 2 recent patent records across H01L 23, H01L 21, and H01L 29, making it a watch-list challenger despite holding no prior-period baseline.
patent records: 2Frequently asked questions
The corpus contains 8 patent families in scope. This is a small corpus, which means individual filings and new entrants can shift the competitive picture materially.
SMIC Shanghai is the top filer with 6 patent records, nearly three times the count of the next-ranked applicants. Its Beijing affiliate contributes a further 2 patent records under a co-filing relationship, giving the SMIC group a combined visible position.
The evidence classifies the field as Growth: the recent three-year filing window is 200% above the prior three-year window. Annual volume has eased from its 2017 peak, and the most recent years are additionally understated by publication lag.
The United States leads with 10 patent records, followed by China with 3. No other jurisdictions appear in the evidence, indicating a narrow geographic prosecution footprint relative to the broader semiconductor industry.
The most-cited work in the corpus includes titles such as ‘Semiconductor device, FinFET transistor and fabrication’ (17 citations), ‘Thermal-aware FinFET design’ (16 citations), and ‘Method and device for reducing FinFET self-heating’ (11 citations). These represent the foundational reference points identified in the evidence.
Yes. NXP Semiconductors and Anhui Dongke Semiconductor are both identified as new entrants in the applicant momentum evidence, each with recent patent records and no prior-period baseline. MediaTek also appears via a co-filing with an individual inventor, suggesting emerging engagement from fabless designers.
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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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