Heller
1809 MK III
What it is
General reference — not yet source-verifiedReflow ovens are thermal processing tools used in electronics assembly and semiconductor packaging. The Heller 1809 MK III is a model of reflow oven designed for soldering surface-mount components onto printed circuit boards.
What do the numbers mean?
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 typical processes are performed on a diffusion furnace of this class?General reference — not yet source-verified
Common processes include thermal oxidation (wet or dry), dopant diffusion (using solid, liquid, or gaseous sources), high-temperature annealing, and drive-in steps. The specific recipe depends on the desired film thickness, junction depth, and material properties.
What gases are commonly used in such systems?General reference — not yet source-verified
Process gases often include oxygen, nitrogen, hydrogen, dichlorosilane, and dopant-bearing compounds such as phosphine or diborane. Inert gases like argon may be used as purge or carrier gases.
How is temperature uniformity achieved across multiple wafers?General reference — not yet source-verified
Uniformity is maintained through multi-zone heating elements, independent zone controllers, and thermocouple sensors placed along the furnace tube. The design of the quartz boat and gas-flow distribution also influence the thermal profile.
What maintenance is required for these machines?General reference — not yet source-verified
Regular maintenance includes quartz tube cleaning to remove deposits, thermocouple calibration, leak checking of gas lines, and occasional replacement of heater elements or seals. The boat and loading system also require cleaning to prevent particle contamination.
Are these systems capable of processing very large wafer diameters?General reference — not yet source-verified
Furnace systems of this class are designed for specific wafer size ranges. The chamber dimensions and uniform temperature zone length dictate the maximum wafer diameter that can be processed while maintaining process control.
Not publicly documented
The following facts about the 1809 MK III 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 1809 MK III are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the 1809 MK III 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 1809 MK III 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 1809 MK III are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 1809 MK III 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 (3)Every fact above is drawn from these public sources
- [1]Inventory photo
- [2]Inventory photo
- [3]Equipment inventory listing
Last updated Sep 29, 2026.
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