Koh Young
Zenith Alpha 3D AOI
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 Koh Young Zenith Alpha 3D AOI is a full 3D automated optical inspection machine. The Koh Young Zenith Alpha 3D AOI uses an 8 MPixel camera with 15μm resolution. The Koh Young Zenith Alpha 3D AOI has Z resolution of 1μm.[1][2]
What it is
General reference — not yet source-verifiedAn AOI machine inspects assembled circuit boards by using optical measurement to detect placement, solder, and surface defects. AOI equipment is used as an in-line quality-control tool in SMT manufacturing.
How it works
General reference — not yet source-verifiedAn AOI system compares observed board features against expected solder joint and component conditions. AOI systems commonly use illumination, imaging, and defect-recognition software to flag missing parts, misalignment, polarity errors, solder defects, and foreign material.
Where it fits in the process flow
General reference — not yet source-verifiedThe Zenith Alpha 3D AOI belongs in SMT inspection after board assembly operations. The machine supports inspection of populated printed circuit boards before the boards move to later downstream handling steps.
Applications
General reference — not yet source-verifiedAn AOI system of this class is used on electronic assemblies where optical access to the board surface is available. The class is suited to detecting visible assembly defects on populated printed circuit boards.
Why won't it start?
Documented failure modes, common issues, and field considerations.
- Shadow problems
- Foreign objects on the PCB
- PCB warp compensation
What do the numbers mean?
Power & electrical1
Optics & imaging9
Control & software2
Dimensions & facilities4
Configuration & options5
Vintage & configurations
Documented models & variants
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| Alpha HS | — | — | Camera resolutions: 6.5M 20μm, 8M 10μm, 8M 15μm; FOV sizes: 51x51 mm, 28x28 mm, 42x43 mm; detection speed up to 55.3 cm²/sec; height measurement up to 4 mm; illumination: IR-RGB LED (Dome Styled) | flason-smt.com[5] |
| Alpha UHS | — | — | Camera resolutions: 12M 10μm, 12M 15μm; FOV: 61x46 mm; detection speed up to 57.3 cm²/sec; height measurement 4 mm; illumination: IR-RGB LED (Dome Styled) | flason-smt.com[5] |
| Model L | — | — | Single lane: max PCB 490x510 mm; machine weight 600 kg; dimensions 1000x1295x1627 mm | flason-smt.com[5] |
| Model XL | — | — | Single lane: max PCB 690x690 mm; dual lane: max 690x320 mm; machine weight 700 kg (single) or 750 kg (dual); dimensions 1200x1475x1627 mm | flason-smt.com[5] |
| Zenith Alpha HS | — | — | Uses a four directional projection light system. | flason-smt.com[5] |
| Zenith Alpha UHS | — | — | Uses a four directional projection light system and is listed with 12M camera resolution and 10μm resolution. | flason-smt.com[5] |
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
- Power Supply220 VAC ± 10%, 1 Phase, 50/60 Hz[5]
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 PCB sizes can the Koh Young Zenith Alpha inspect?
The L-model single-lane configuration can handle PCBs from 50 mm × 50 mm up to 490 mm × 510 mm, with board thickness from 0.4 mm to 5 mm and a maximum board weight of 4 kg.[5]
What is the smallest component the Zenith Alpha can detect?
The system can detect components as small as 0402 (300 μm) and supports chip sizes down to 01005.[1][2]
What is the inspection speed of the Zenith Alpha?
Not publicly documented
The following facts about the Zenith Alpha 3D AOI 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 Zenith Alpha 3D AOI are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the Zenith Alpha 3D AOI are not on record.
Answerable by: an engineer who operated it or OEM installation records
The process node or technology generation of the Zenith Alpha 3D AOI is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the Zenith Alpha 3D AOI are on record.
Answerable by: an OEM parts catalog or a service engineer
No publicly hosted manuals, SOPs, or datasheets for the Zenith Alpha 3D AOI are on record.
Answerable by: university cleanroom staff or an OEM application specialist
Sources & citations
Sources (6)Every fact above is drawn from these public sources
- [1]smt-innovation.com — smt-innovation.comsmt-innovation.com
- [2]efsmt.com — efsmt.comefsmt.com
- [3]Inventory photo
- [4]Inventory photo
- [5]flason-smt.com — flason-smt.comflason-smt.com
- [6]Koh Young ZENITH Alpha 3D AOI - YFX Machine — smt-warehouse.comsmt-warehouse.com
Last updated Oct 11, 2026.
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