EV Group
EV 501 Wafer
The EV Group EV 501 Wafer is a packaging and bonding tool for wafer-level bonding work. The EV 501 Wafer is capable of thermo compression, fusion, or anodic wafer bonding. The EV 501 Wafer includes a bottom side heater with a maximum temperature of 550°C in 1°C steps.[1][2]
Plate 01EVG 501 Wafer Bonder (ID# 4726)
ClassOneEngineeringWatch on YouTube
Wafer size
Capable of thermo compression, fusion or anodic wafer bonding
Vacuum
Turbo Pump[1]
Performance
± 1,5 %[1]
What it is
How it works
The EV 501 Wafer includes a bottom side heater with a maximum temperature of 550°C in 1°C steps. The EV 501 Wafer also includes a high-voltage power supply for anodic bonding, and additional tooling may be required for that mode.[1][2]
The EV 501 Wafer includes a turbo pump and a roughing pump. The EV 501 Wafer also includes computer and software, an electronics rack, and an LCD monitor in the configured tool set.[1][2]
Where it fits in the process flow
General reference — not yet source-verifiedWafer bonding sits in back-end or packaging-oriented process flows where finished or partially finished wafers are joined to another wafer or to a bonding substrate. The process follows earlier surface preparation and patterning steps and precedes downstream singulation, packaging, or integration steps.
Applications
What do the numbers mean?
Power & electrical3
- High voltage power supply for anodic bonding (additional tooling may be required)[1]
- Power supply
- High voltage power supply for anodic bonding (additional tooling may be required)[1]
- High voltage power supply
- High voltage power supply for anodic bonding (additional tooling may be required)[1]
Vacuum & pumping5
Wafer handling8
- Bond chamber for small pieces up to 150 mm wafers (with correct tooling)[1]
Performance1
Control & software3
- Computer & Software[1]
Configuration & options12
Vintage & configurations
Documented models & variants
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| EV 501 Wafer Bonder | — | — | — | waferpedia.com[3] |
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
- ConfigurationTurbo Pump[1]
- ConfigurationHigh voltage power supply for anodic bonding (additional tooling may be required)[1]
- ConfigurationRoughing Pump[1]
- Vacuum pumpTurbo Pump[1]
- Power supplyHigh voltage power supply for anodic bonding (additional tooling may be required)[1]
- PumpRoughing Pump[1]
- Roughing pumpRoughing Pump[1]
- High voltage power supplyHigh voltage power supply for anodic bonding (additional tooling may be required)[1]
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
How is wafer alignment achieved in such bonders?General reference — not yet source-verified
Alignment is performed using optical microscopes for front-side alignment and infrared imaging for back-side or bond interface alignment, allowing submicron precision before the bonding cycle starts.
What factors influence the bond quality in these systems?General reference — not yet source-verified
Key factors include surface cleanliness and roughness, alignment accuracy, temperature uniformity, applied pressure, and ambient gas composition (vacuum or inert gas). Process recipes are carefully optimized to avoid voids and stress.
What are typical throughputs for wafer bonders?General reference — not yet source-verified
Throughput varies widely based on bond recipe complexity, temperature ramp rates, and wafer size. A single bonding cycle can range from minutes to several hours for high-temperature fusion bonds.
Can these systems handle different wafer sizes and materials?General reference — not yet source-verified
Yes, bonders of this class are often designed to accommodate multiple standard wafer diameters and can process silicon, glass, compound semiconductors, and other substrate materials with appropriate tooling and process compatibility.
Not publicly documented
The following facts about the EV 501 Wafer 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 EV 501 Wafer are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the EV 501 Wafer 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 Wafer are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the EV 501 Wafer is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the EV 501 Wafer are on record.
Answerable by: an OEM parts catalog or a service engineer
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]Inventory photo
- [2]EV 501 Wafer — EV Group | Specs, Sourcing & Service | Waferpedia — waferpedia.comwaferpedia.com
- [3]waferpedia.com — waferpedia.comwaferpedia.com
Last updated Oct 11, 2026.
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