2.5D Packaging Patent Landscape 2026
2.5D Packaging Patent Landscape in 2026
The 2.5D packaging patent space is highly concentrated, with Intel Corp commanding the top position and the five largest filers together accounting for more than half of the hundred largest filers’ combined output. The field is in a growth stage on a multi-year basis, with recent-window filings running 96% above the prior window, though annual volume has eased from its 2023 peak and the most recent years remain understated by publication lag.
Intel leads a concentrated field; five players dominate among the top hundred filers
Intel Corp holds the top position in the 2.5D packaging landscape with 64 patent families, more than 70% ahead of the second-ranked Apple Inc at 37 patent families. Siliconware Precision Industries follows in third with 27 patent families, with Taiwan Semiconductor Manufacturing Co and IBM rounding out the top five.
The top five filers account for 56% of the combined output of the hundred largest filers, signaling a strongly concentrated competitive structure. A clear tier gap separates Intel and Apple from the mid-tier players, and a second gap separates the top five from filers at six to nine patent families.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Intel Corporation | 64 | |
| 2 | Apple Inc | 37 | |
| 3 | Siliconware Precision Industries Co Ltd | 27 | |
| 4 | Taiwan Semiconductor Manufacturing Co Ltd | 17 | |
| 5 | International Business Machines Corporation | 14 | |
| 6 | SJ Semiconductor (Jiangyin) Corp | 9 | |
| 7 | Elpis Technologies Inc | 7 | |
| 8 | Nantong Fujitsu Microelectronics Co Ltd | 7 | |
| 9 | Silicon Box Pte Ltd | 6 | |
| 10 | AGENCY FOR SCI TECH & RES | 5 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Silicon Genesis Corporation | 5 | |
| 12 | Institute of Technical Education | 5 | |
| 13 | Hygon Information Technology Co Ltd | 4 | |
| 14 | Adeia Semiconductor Technologies LLC | 4 | |
| 15 | Murata Manufacturing Co Ltd | 4 | |
| 16 | JCET Management Co Ltd | 4 | |
| 17 | Altera Corporation | 4 | |
| 18 | S Squared IP LLC | 3 | |
| 19 | Micron Technology Inc | 3 | |
| 20 | Bruker Nano Inc | 3 |
Intel’s scale advantage, combined with Apple’s and TSMC’s significant positions, indicates that the dominant players are vertically oriented — encompassing design, foundry, and packaging — which raises the barrier for pure-play packaging entrants seeking to compete at the frontier.
Filing counts for 2024 and 2025 are understated due to the 18–24 month publication lag inherent in patent systems; apparent slowdowns in those years should not be read as a real decline in activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Multi-year growth is sustained; semiconductor device structures dominate the technology mix
The filing trend and technology composition charts together show a field that has expanded sharply since 2021 and remains anchored in core semiconductor device IPC classes, with a long tail of adjacent branches receiving comparatively little coverage.
Annual filing trend
Annual filings rose from 14 in 2018 to a peak of 59 in 2023, reflecting a 96% increase in recent-window activity versus the prior window. The apparent drop in 2024 and the near-zero count in 2025 are artifacts of publication lag, not a real contraction; treat those years as provisionally understated.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01L (Semiconductor devices) is overwhelmingly dominant, reflecting the interposer and die-interconnect focus of most filings. H10W, covering power and compound semiconductor devices, is a distant second. Branches such as G01R (electric and magnetic measurement), H10B (memory device manufacture), G02B (optical elements), H05K (printed circuits), and H02M (power conversion) each represent small but distinct technical adjacencies that are sparsely covered relative to the core H01L class.
↗ 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.
Substrate wiring method for 2.5d packaging structu…
The present disclosure provides a substrate wiring method for a 2.5D packaging structure, a substrate, and a packaging structure. In the substrate wiring method for a 2.5D packaging structure, the volume V1(i) of each dielectric layer providing a wiring metal layer is calculated, the metal volume V2(i) in each dielectric layer is calculated, and the metal… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Multi-chip package structures formed with intercon… | 129 |
| 2 | Multi-chip package structure having chip interconn… | 89 |
| 3 | Multi-chip package structures having embedded chip… | 83 |
| 4 | Wafer reconstitution and die-stitching | 73 |
| 5 | Multi-chip package structure having chip interconn… | 60 |
| 6 | Wafer reconstitution and die-stitching | 52 |
| 7 | Semiconductor Device and Method of Reducing Warpag… | 50 |
| 8 | Systems and methods for interconnecting dies | 47 |
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 decisions
The combination of high concentration, rapid multi-year growth, and a technically deep core creates distinct implications for new entrants, challengers, and incumbents alike.
Growth stage, easing from 2023 peak
The lifecycle stage is Growth: recent three-year filings sit well above the prior three-year window (96% higher), confirming the field is still expanding on a multi-year basis. Annual volume peaked in 2023 at 59 filings and has eased since, though the most recent years are further understated by publication lag. Entering now means competing in a still-active, technically evolving space rather than a commoditized one.
Growth · easing from peakTop five hold majority share among largest filers
The top five filers account for 56% of the combined output of the hundred largest filers, with Intel alone at 64 patent families. This degree of concentration implies that freedom-to-operate analysis is essential before entering core interposer and die-interconnect areas. Mid-tier filers such as SJ Semiconductor (Jiangyin) and Elpis Tech signal that OSATs and regional players are building positions, but none yet approaches the scale of the top two.
High concentrationTSMC–Global Unichip and IBM lead observed co-filing activity
The most active co-filing pairs in the corpus are Taiwan Semiconductor Manufacturing Co with Global Unichip Corporation (2 joint filings) and IBM with both its Chinese subsidiary and IBM United Kingdom’s IP department (1 filing each). The overall volume of co-filed families is modest relative to the corpus size, suggesting that formal patent collaboration across organizations remains limited and that most R&D is conducted within single-entity boundaries.
Limited co-filingUS filings dominate; PCT and EPO provide secondary coverage
The United States is the primary filing jurisdiction, followed by WIPO PCT and the European Patent Office. China, India, and Singapore each have modest coverage. Taiwan, which hosts several leading applicants (Siliconware Precision, TSMC), shows limited direct filing volume in this corpus, a pattern worth monitoring as regional IP strategies evolve. Entrants should prioritize US prosecution while evaluating PCT routes for broader portfolio protection.
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 |
|---|---|---|
| Taiwan Semiconductor Manufacturing Co Ltd | Global Unichip Corporation | 2 |
| International Business Machines Corporation | IBM China Co Ltd | 1 |
| International Business Machines Corporation | IBM United Kingdom Ltd | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Intel commands the field; Apple, Siliconware Precision, and TSMC are the next tier
The two players profiled below represent contrasting momentum profiles: Intel is accelerating sharply while Apple has pulled back in the most recent window.
Intel Corp
Intel Corp leads the landscape with 64 patent families, concentrated across H01L 21 (process), H01L 23 (packaging and interconnect), and H01L 25 (multi-chip assemblies) — the core technical axes of 2.5D integration. Momentum is strongly positive at +111% in the recent window versus the prior period, confirming that Intel is actively building its interposer and chiplet IP position rather than defending a static portfolio.
families: 64Apple Inc
Apple Inc holds 37 patent families with an IPC focus identical to Intel’s — H01L 23, H01L 21, and H01L 25 — reflecting its interest in advanced packaging for custom silicon. However, its recent-window trend shows a –42% decline versus the prior period, indicating a significant slowdown in new 2.5D packaging filings. This may reflect a strategic shift toward internalization or a lag in publication of more recent work.
families: 37| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Intel Corporation | 38 | ▲ +111% |
| Apple Inc | 11 | ▼ -42% |
| Siliconware Precision Industries Co Ltd | 23 | ▲ new entrant |
| Taiwan Semiconductor Manufacturing Co Ltd | 10 | ▲ new entrant |
| SJ Semiconductor (Jiangyin) Corp | 8 | ▲ new entrant |
| Nantong Fujitsu Microelectronics Co Ltd | 3 | ▲ new entrant |
| Silicon Box Pte Ltd | 3 | ▲ new entrant |
| Silicon Genesis Corporation | 4 | ▲ new entrant |
Under-served technical branches adjacent to the 2.5D packaging core
Several IPC classes adjacent to the dominant H01L core have sparse coverage relative to their technical relevance to 2.5D packaging; these are observations of relative sparsity, not validated opportunities, though some carry plausible technical value and realistic entry paths.
G01R · Electric & magnetic measurement
With only 14 patent records in this branch, in-package electrical and electromagnetic characterization — including signal integrity testing, impedance measurement across interposers, and electromagnetic compatibility validation for chiplet assemblies — is sparsely covered. The technical value is clear: denser multi-die integration increases the need for on-package measurement infrastructure. An entrant with test-equipment or EDA competency could build a differentiated position here without directly confronting the H01L incumbents.
Search this in Eureka →G02B · Optical elements & systems
Only 7 patent records cover optical elements and systems in this corpus, a striking sparsity given the growing interest in silicon photonics co-packaged with logic and memory in 2.5D configurations. Optical interconnect through interposers — waveguides, grating couplers, photonic chiplets — represents a technically adjacent and commercially relevant direction. Coverage is thin enough that a player specializing in photonic integration could establish early IP positions before the field fills in.
Search this in Eureka →How leading applicants differ across 2.5D packaging technology routes
Strength of each leader across the main technology routes.
| Player | H01L 21 · Semiconductor devices | H01L 23 · Semiconductor devices | H01L 25 · Semiconductor devices | H10W 74 | H01L 29 · Semiconductor devices |
|---|---|---|---|---|---|
| Intel Corporation | Strong · 62 | Strong · 63 | Strong · 51 | Emerging · 4 | Absent |
| Apple Inc | Strong · 30 | Strong · 36 | Strong · 27 | Absent | Emerging · 7 |
| Siliconware Precision Industries Co Ltd | Strong · 27 | Strong · 27 | Moderate · 12 | Strong · 16 | Absent |
| Taiwan Semiconductor Manufacturing Co Ltd | Strong · 17 | Strong · 16 | Strong · 11 | Absent | Emerging · 3 |
| International Business Machines Corporation | Strong · 21 | Strong · 14 | Moderate · 8 | Emerging · 2 | Absent |
| Nantong Fujitsu Microelectronics Co Ltd | Strong · 7 | Strong · 7 | Strong · 5 | Emerging · 1 | Emerging · 1 |
Frequently asked questions
The corpus covers 264 patent families. This is the base count for total scope; applicant rankings and IPC branch counts are derived from this corpus but measured at different levels of aggregation.
Intel Corp leads with 64 patent families, followed by Apple Inc with 37 and Siliconware Precision Industries with 27. Intel’s recent-window momentum is running at +111% versus the prior period, indicating an accelerating rather than plateauing position.
Yes, on a multi-year basis. Recent three-year filings are 96% above the prior three-year window, placing the field in a Growth lifecycle stage. Annual volume peaked at 59 filings in 2023 and has eased since, but 2024 and 2025 counts are understated by publication lag and should not be read as a real contraction.
The United States is the dominant filing jurisdiction, followed by WIPO PCT and the European Patent Office. China, India, and Singapore each have modest coverage. Taiwan has limited direct filing volume in this corpus despite hosting several leading applicants.
The most-cited work in the corpus covers multi-chip package structures with chip interconnect features (top two cited documents at 129 and 89 citations respectively), embedded chip structures, wafer reconstitution and die-stitching techniques, and methods for reducing warpage in semiconductor devices. These citations cluster around interposer design and multi-die assembly — the technical core of the field.
The sparsest adjacent branches relative to the dominant H01L core are G01R (electric and magnetic measurement, 14 records), H10B (memory device manufacture, 9 records), H10D (general semiconductor devices, 9 records), H10N (other solid-state devices, 9 records), and G02B (optical elements, 7 records). These represent areas of relative sparsity; whether they constitute actionable opportunities depends on an entrant’s technical competency and commercial roadmap.
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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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