EV Group
EVG 40 NT
Provisional entry — research in progress
This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.
What it is
The EVG 40 NT is an automated measurement system designed for metrology applications in semiconductor manufacturing, specifically for lithography and bonding processes. The system enables measurement of lithography-relevant parameters such as critical dimensions and bond alignment accuracy, as well as verification of compliance to tight process specifications.[2]
How it works
The EVG 40 NT uses a top- to bottom-side microscope configuration to perform a range of measurement tasks. The system is controlled by PC-based measurement and pattern recognition software, which enables automated analysis of alignment and dimensional data. A specialized calibration routine supports high throughput.[2]
Where it fits in the process flow
The EVG 40 NT is used after key process steps such as lithography exposure or wafer bonding to verify pattern fidelity and alignment accuracy. The system serves as a tool of record for confirming bond overlay accuracy in aligned wafer bonding, often completing the metrology loop for automated fusion bonding systems. Measurements from the tool can be used to instantly optimize integrated process parameters.[2]
Applications
The EVG 40 NT is applied to nanoimprint lithography, where it measures critical dimensions and alignment. In wafer-to-wafer bonding, it verifies bond overlay accuracy and alignment between wafers. Other applications include critical dimension (CD) measurement, die-to-die alignment verification, and multi-layer thickness measurement.[2]
What do the numbers mean?
Wafer handling1
Optics & imaging1
- Verification capability
- 100 nm bond overlay accuracy of EVG's GEMINI FB automated fusion bonding system[2]
Performance2
- Measurement methods
- Critical dimension measurement, die-to-die alignment verification, multi-layer thickness measurement[2]
Configuration & options7
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
No research found yet — worked with this tool? Share what you know.
Not publicly documented
The following facts about the EVG 40 NT are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the EVG 40 NT are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the EVG 40 NT are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the EVG 40 NT are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the EVG 40 NT are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the EVG 40 NT is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (2)Every fact above is drawn from these public sources
- [1]Equipment inventory listing
- [2]evgroup.com — evgroup.comevgroup.com
Last updated Oct 5, 2026.
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