Wafer Level Vacuum Packaging Patents: Leaders & White Space 2026
Wafer Level Vacuum Packaging for MEMS: Patents, Leaders and Open Claim Space
Concentrated at the top. The five leading assignees hold 36.4% of all 316 records in scope, and the leading ten hold 56.6% — a field with a defined core group rather than an even spread. Filings rose from 7 in 2017 to a peak of 20 in 2020, then fell — 14 in 2021 down to 3 in 2024, a 79% drop over that span. Treat 2025 and 2026 as incomplete rather than as evidence the field has gone quiet; publication lag means recent filings have not all surfaced yet.
- 1CARDIOMEMS INC34
- 2FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV23
- 3NUVOTRONICS INC22
- 4CUBIC CORP21
- 5SILEX MICROSYSTEMS AB15
See the full wafer level vacuum packaging for mems analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions on wafer level vacuum packaging patents
What is wafer level vacuum packaging in MEMS manufacturing?
It is a packaging method where a MEMS structure is sealed inside a hermetic cavity formed directly during wafer bonding, rather than assembled afterward in a separate housing. The approach typically relies on eutectic bonding or similar bonding methods combined with a thin film getter to maintain a vacuum or controlled atmosphere inside the cavity. It matters for devices like resonators and inertial sensors because the sealed environment directly affects performance metrics such as quality factor retention over the device’s life.
Who are the leading patent holders in wafer level vacuum packaging for MEMS?
Across the 316 records in this dataset, filing activity is concentrated: the leading assignee holds 34 records, and the top five assignees combined account for 36.4% of all records in scope. The top ten combined reach 56.6%, meaning a little over half the entire dataset traces back to a small group of organisations. Beyond that group, filing activity spreads across a long tail of assignees with far fewer records each.
Is patent filing in this area growing or slowing down?
Filing peaked in 2020 at 20 records and has declined since, with a documented drop from 14 filings in 2021 to 3 in 2024 — a 79% fall over that three-year span. That decline is based on complete-year data through 2024; figures for 2025 and 2026 are still incomplete because publication typically lags actual filing by around 18 months. Based on the complete-year trend, activity has cooled from its 2020 peak rather than accelerated.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Wafer Level Vacuum Packaging for MEMS covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.