Varian
E 500 EHP
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 Varian E 500 EHP is a medium current implanter used for ion implantation. The Varian E 500 EHP provides a maximum beam energy of 250kV. The Varian E 500 EHP handles 6-inch wafers and can be converted to 8-inch wafer size.[1][2]
What it is
General reference — not yet source-verifiedIon implanters introduce dopant ions into semiconductor wafers to modify electrical properties such as conductivity and threshold voltage. The process is critical for forming p-n junctions in transistors and other devices.
How it works
General reference — not yet source-verifiedThe selected ion beam is then accelerated to its final energy, which determines the implantation depth. The beam is scanned electromagnetically across the wafer surface to achieve uniform doping. The end station holds the wafer in a process chamber, often under vacuum, and may include a thin wafer handling kit for fragile substrates.
Where it fits in the process flow
General reference — not yet source-verifiedIon implantation generally follows photolithography and precedes thermal annealing. After the wafer has been patterned with a mask layer, the implanter introduces dopants into exposed regions. The medium current class of implanters is typically used for moderate-dose, high-energy applications such as well formation, threshold voltage adjustment, and channel-stop doping.
What do the numbers mean?
Power & electrical4
Wafer handling2
Configuration & options5
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
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
What type of equipment is the Varian E 500 EHP?
The Varian E 500 EHP is a medium current implanter for ion implantation.[1]
What wafer sizes does it support?
The implanter handles 6-inch wafers and can be converted to process 8-inch wafers.[1][2]
Does it include a thin wafer handling kit?
Yes, the Varian E 500 EHP includes a thin wafer handling kit.[1][2]
What is the maximum beam energy?
The maximum beam energy is 250 kV.[2]
Not publicly documented
The following facts about the E 500 EHP 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 E 500 EHP are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the E 500 EHP 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 E 500 EHP 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 E 500 EHP are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the E 500 EHP 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 (6)Every fact above is drawn from these public sources
- [1]waferpedia.com — waferpedia.comwaferpedia.com
- [2]tarasemi.com — tarasemi.comtarasemi.com
- [3]Inventory photo
- [4]Inventory photo
- [5]waferpedia.comwaferpedia.com
- [6]Equipment inventory listing
Last updated Oct 1, 2026.
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