FinFET Yield Enhancement Patent Snapshot 2026
This is a highly concentrated niche: just two applicants — Taiwan Semiconductor Manufacturing Co. and IBM — account for the entirety of the top-ranked filers, with TSMC holding the leading position. The field has reached maturity, with annual filings plateaued near their earlier peak rather than climbing.
TSMC leads a two-player field in FinFET yield enhancement
Taiwan Semiconductor Manufacturing Co. holds the top position in this corpus, followed by IBM as the only other significant ranked filer. The top five filers collectively represent the entire share of the ranked applicants visible in this query — indicating an extremely narrow competitive footprint.
The tier gap between TSMC and IBM is visible in the ranking, with TSMC’s count materially exceeding IBM’s. Below these two, no additional applicants appear in the evidence, signalling that this remains a specialist sub-field rather than a broadly contested technology domain.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Taiwan Semiconductor Manufacturing Co., Ltd. | 13 | |
| 2 | International Business Machines Corporation | 7 |
TSMC’s leadership reflects its dual role as the world’s largest foundry and an active developer of process-monitoring and yield-control methods for advanced node FinFETs. IBM’s presence is consistent with its historical role as an originator of FinFET process technology and its ongoing foundry-ecosystem collaborations.
The most recent one to two years of filings are likely under-counted due to standard patent publication lag and should not be interpreted as a slowdown beyond what the lifecycle evidence already indicates. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Intermittent filing activity dominated by semiconductor device classifications
The annual trend and technology-composition charts together show a niche field with sporadic activity concentrated almost entirely in semiconductor device IPC branches, with a minor but notable presence in measurement and testing classes.
Annual filing trend
Filings first appeared in 2018, with small bursts in 2018, 2020, and 2022 and gaps in intervening years. This intermittent pattern is consistent with a maturity stage in which incremental process refinements rather than broad platform innovation drive disclosure. The most recent period should be treated as incomplete due to publication lag.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) and H10D (Semiconductor devices, general) are visible in the branch mix, confirming that yield enhancement work in this corpus is framed primarily as device-structure and fabrication-process invention. G01N (Material analysis and testing) and G01B (Measuring length and dimensions) appear at lower shares, indicating that metrology and in-line measurement methods are present but secondary.
↗ 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.
Techniques for Quantifying Fin-Thickness Variation…
Techniques for quantifying ΔDfin in FINFET technology are provided. In one aspect, a method for quantifying ΔDfin between a pair of long channel FINFET devices includes the steps of: (a) obtaining Vth values for each of the long channel FINFET devices in the pair; (b) determining a ΔVth for the pair of long channel FINFET devices; and (c) using the ΔVth to… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Test structure macro for monitoring dimensions of … | 26 |
| 2 | Finfet device and method of forming and monitoring… | 25 |
| 3 | FinFET device and method of forming and monitoring… | 8 |
| 4 | FinFET Device and Method of Forming and Monitoring… | 4 |
| 5 | FinFET device and method of forming and monitoring… | 3 |
| 6 | Test structure macro for monitoring dimensions of … | 3 |
| 7 | Techniques for quantifying fin-thickness variation… | 3 |
| 8 | FinFET Device and Method of Forming and Monitoring… | 2 |
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.
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.
Taiwan Semiconductor Manufacturing Co.
TSMC holds the top position with 13 patent records in the ranking. Its technology emphasis spans H01L 21 (semiconductor device fabrication), H10D 64, and H10D 84 — all pointing to process-integration and device-structure yield methods. Momentum evidence classifies TSMC as a new entrant in the most recent filing window, suggesting that its recent activity, though small in absolute terms, represents a fresh engagement rather than a long-standing continuous program.
13 patent recordsInternational Business Machines Corporation
IBM follows with 7 patent records, concentrated in H01L 21, H01L 29, and H10D 62 — a profile that skews toward device-structure definition and electrical characterization relative to TSMC’s broader fabrication-process focus. IBM’s four co-filings with GlobalFoundries underline a partnership-driven prosecution strategy, and its foundational patents in the top-cited list (covering FinFET monitoring methods with up to 25 citations) indicate deep prior-art influence in this niche.
7 patent recordsFrequently asked questions
Taiwan Semiconductor Manufacturing Co. leads with 13 patent records, followed by IBM with 7. These two applicants account for all of the named entities in the top-ranked filer evidence, making this an unusually concentrated niche.
Filings first appeared in 2018 and have been intermittent, with small clusters in 2018, 2020, and 2022. The lifecycle evidence classifies the field as Mature, with annual activity having plateaued near its peak rather than continuing to grow.
H01L (Semiconductor devices) and H10D (Semiconductor devices, general) are the visible branches. G01N (Material analysis and testing) and G01B (Measuring length and dimensions) appear at much lower shares, indicating that device-structure and fabrication-process claims are the primary focus.
Yes. IBM and GlobalFoundries are the most active co-filers, with 4 joint filings recorded in the evidence. This reflects the historical IBM–GlobalFoundries foundry alliance that developed advanced FinFET process nodes collaboratively.
All jurisdictional records in the evidence point to the United States as the sole filing destination. Whether equivalent filings exist in other jurisdictions is not captured in the current corpus scope.
The G01B (Measuring length and dimensions) branch has the lowest density in the corpus, with only 3 patent records. Fin-dimension metrology is directly relevant to yield outcomes and appears sparsely claimed. G01N (Material analysis and testing) is also relatively thin at 6 records. Both observations should be validated against broader patent databases before treating them as confirmed opportunities.
Ready to map your own FinFET yield enhancement Snapshot?
Join 18,000+ innovators using PatSnap Eureka to map any technology landscape: search 2B+ patents and papers, surface key assignees, and generate a report like this in minutes.
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.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. PatSnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.