Disco
DFD 8540
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 Disco DFD 8540 is a grinder manufactured by Disco.[1]
What it is
How it works
General reference — not yet source-verifiedA wafer grinder holds the wafer on a vacuum chuck and brings it into contact with a rotating grinding wheel embedded with abrasive diamond grit.
The grinding process removes material from the wafer backside in a controlled manner, often using coarse and fine grinding stages to achieve the target thickness and surface finish.
Where it fits in the process flow
General reference — not yet source-verifiedWafer grinding is performed after front-end wafer fabrication and before dicing, typically as part of the back-end or packaging flow.
Upstream steps include wafer fabrication and possibly temporary bonding to a carrier wafer; downstream steps include dicing, die attach, and encapsulation.
Applications
General reference — not yet source-verifiedWafer grinders are used to thin wafers for a variety of applications including memory devices, logic circuits, power semiconductors, MEMS, and image sensors.
Thinning is critical for stacked-die packages, where multiple thinned dies are assembled vertically to reduce package footprint and improve electrical performance.
What do the numbers mean?
No specifications recorded yet
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Where are the manuals?
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Not publicly documented
Field notes
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Not publicly documented
The following facts about the DFD 8540 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 specifications for the DFD 8540 are on record.
Answerable by: an OEM datasheet, a cleanroom equipment inventory, or an engineer who operated or installed it
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the DFD 8540 are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the DFD 8540 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 DFD 8540 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 DFD 8540 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (1)Every fact above is drawn from these public sources
- [1]Equipment inventory listing
Last updated Aug 20, 2026.
