EV Group
EV 501
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.
The EV Group EV 501 is a wafer bonder. The EV 501 performs anodic bonding, used to seal Pyrex wafers to silicon microfluidic channels.[1]
What it is
How it works
The EV 501 has been used to perform anodic bonding of a Pyrex wafer to a silicon microchannel wafer. Anodic bonding uses a high electric field at elevated temperature to create a permanent seal between glass and silicon.[1]
Where it fits in the process flow
General reference — not yet source-verifiedWafer bonders are used after the fabrication of individual wafers to join them into a stacked assembly. The bonded stack is then typically diced into individual dies for further processing or final packaging.
In microfluidics and MEMS, bonding seals microchannels and cavities. Anodic bonding of glass to silicon is a common process step for enclosing microfluidic networks.
Applications
The EV 501 has been applied in the fabrication of microfluidic pillar-array columns for liquid chromatography. The bonder was used to seal etched silicon microchannels with a Pyrex cover wafer.[1]
What do the numbers mean?
No specifications recorded yet
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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.
Frequently asked questions
Not publicly documented
The following facts about the EV 501 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 specifications for the EV 501 are on record.
Answerable by: an OEM datasheet, a cleanroom equipment inventory, or an engineer who operated or installed it
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the EV 501 are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the EV 501 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 EV 501 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 EV 501 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (3)Every fact above is drawn from these public sources
- [1]https://ris.utwente.nl/ws/files/6811731/fabrication.pdf — ris.utwente.nlris.utwente.nl
- [2]Equipment inventory listing
- [3]EV 501 — EV Group | Specs, Sourcing & Service | Waferpedia — waferpedia.comwaferpedia.com
Last updated Sep 23, 2026.
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