Wyko

HD8000

Research Quality: 60% complete

The Wyko HD8000 is a magnetic head profiling system. The Wyko HD8000 is a non-contact optical profiler. The Wyko HD8000 measures pole-tip recession (PTR) or ABS flatness in less than 3 seconds.^[1]

What it is

The HD8000 is a non-contact optical profiler. The HD8000 is used in the data storage industry. The HD8000 is a metrology tool for magnetic head manufacturing.^[1]

How it works

The HD8000 measures pole-tip recession (PTR) and air-bearing surface (ABS) flatness. The HD8000 performs these measurements in less than 3 seconds. With advanced automation, the HD8000 can combine measurement of PTR and ABS flatness in under 5 seconds. The HD8000 achieves a gauge precision-to-tolerance (P/T) ratio better than 10%. The HD8000 uses non-contact optical profiling to measure the magnetic thin-film heads.^[1]

The HD8000 is an optical profiler. Optical profilers of this class use interferometry to measure surface topography without contacting the sample. The HD8000 employs the Wyko Vision32 analysis software. The HD8000 integrates with yield management networks to deliver quality data throughout the process.^[1]

Applications

The HD8000 is used for characterizing magnetic thin-film heads. The HD8000 measures pole-tip recession (PTR) and ABS flatness. The HD8000 is applied in the data storage industry for head gimbal assembly (HGA) manufacturing. The HD8000 enables 100% in-line testing for quality control.^[1]

magnetic thin-film heads
pole-tip recession measurement
ABS flatness measurement
100% in-line testing
head gimbal assembly (HGA) yield improvement

What do the numbers mean?

Optics & imaging2

Instrument type: non-contact optical profiler^[1]
Measurement method: Non-contact optical profiler^[1]

Control & software1

Software: Wyko Vision32 analysis software^[1]

Configuration & options9

Application: characterizes magnetic thin-film heads^[1]
Measurement: pole-tip recession (PTR) or ABS flatness^[1]
Measurement time: less than 3 seconds^[1]
Combined PTR and ABS flatness measurement time: under 5 seconds^[1]
Gauge P/T: better than 10%^[1]
Network integration: communicates with yield management networks^[1]
Type: Magnetic Head Profiling System^[1]
Measured parameters: Pole-tip recession (PTR) or ABS flatness^[1]
Production use: 100% in-line testing^[1]

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What replaced it?

Alternatives

Tools documented as functional equivalents — same process step and wafer size, from a different manufacturer. Each equivalence cites its source.

Bruker ContourGT X 3 D Optical Profiler— Same function class: Precision Optics, UnknownCompare in depthsource^[2]

Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What are the key considerations when choosing between white light and phase-shifting interferometry?General reference — not yet source-verified

White light interferometry (also called vertical scanning or coherence scanning) is effective for rough surfaces and large step heights because it uses a broad spectrum to unambiguously identify the coherence peak. Phase-shifting interferometry offers higher vertical resolution but works best on smooth, continuous surfaces with small height variations. The choice depends on the surface characteristics and required measurement accuracy.

Not publicly documented

The following facts about the HD8000 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 HD8000 are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the HD8000 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 HD8000 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 HD8000 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the HD8000 is not on record.
Answerable by: an OEM datasheet or a fab qualification report