Hitachi
HT7700
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 Hitachi HT7700 is a transmission electron microscope operating at accelerating voltages from 40 kV to 120 kV. The HT7700 uses a LaB6 electron gun and a dual-gap objective lens system that can be switched between high-contrast and high-resolution modes. The HT7700 achieves point resolution of 0.204 nm and, with the optional EXALENS lens, line resolution of 0.144 nm.[1][2]
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What it is
How it works
The HT7700 operates with an accelerating voltage range of forty kilovolts to one hundred twenty kilovolts. The HT7700 uses a LaB6 electron gun and a double-gap objective lens system that supports High-Contrast and High-Resolution imaging modes.[1][2]
The HT7700 has a motorized side-entry goniometer stage in one configuration and a motorized eucentric goniometer stage in another configuration. The HT7700 supports software-controlled operation, automated imaging functions, and digital image acquisition with a CCD camera.[1][2]
Where it fits in the process flow
General reference — not yet source-verifiedThe HT7700 sits in the characterization and inspection stage of a materials or device workflow. The HT7700 is used after specimen preparation has produced thin samples suitable for transmission electron microscopy.
The HT7700 is used for imaging and analysis rather than for wafer fabrication steps. The HT7700 supports post-process examination of microstructures and devices when internal morphology or nanoscale defects must be studied.
Applications
Why won't it start?
Documented failure modes, common issues, and field considerations.
- No magnetic samples allowed (stated in quick manual)
- No organic/bio samples allowed (stated in quick manual)
What do the numbers mean?
Power & electrical2
Vacuum & pumping1
Optics & imaging10
- Objective lens system
- Double gap objective lens (High-Contrast and High-Resolution modes)[1]
Configuration & options6
Vintage & configurations
Documented models & variants
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| HT7700 EXALENS | — | 2009 | Includes EXALENS ultra-low-aberration objective lens for improved resolution (0.144 nm line resolution at 120 kV) | regenmicroscopy.com[1] |
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 accelerating voltage range does the HT7700 support?
The HT7700 supports an accelerating voltage range from forty kilovolts to one hundred twenty kilovolts.[1][2]
What electron source does the HT7700 use?
The HT7700 uses a LaB6 electron gun.[1]
What applications are given for the HT7700?
The HT7700 is used for cell and tissue ultrastructure studies, nanoparticle characterization, polymers, and thin-film materials research.[1]
Not publicly documented
The following facts about the HT7700 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 HT7700 are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the HT7700 are not on record.
Answerable by: an engineer who operated it or OEM installation records
The process node or technology generation of the HT7700 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the HT7700 are on record.
Answerable by: an OEM parts catalog or a service engineer
No publicly hosted manuals, SOPs, or datasheets for the HT7700 are on record.
Answerable by: university cleanroom staff or an OEM application specialist
Sources & citations
Sources (3)Every fact above is drawn from these public sources
- [1]regenmicroscopy.com — regenmicroscopy.comregenmicroscopy.com
- [2]instrumenthive.com — instrumenthive.cominstrumenthive.com
- [3]louisville.edu — louisville.edulouisville.edu
Last updated Oct 3, 2026.
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