Waferpedia

West Bond

4 KEX

Packaging & BondingWest Bond 4 KEX family
Research Quality: 40% complete

The West Bond 4 KEX is a wire bonder for packaging and bonding. The West Bond 4 KEX has a 20" × 20" work platform and a 6" × 8" heated work holder. The West Bond 4 KEX has a bond force range of 10–150 grams.[1][2]

West Bond4 KEX
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What it is

The West Bond 4 KEX is a wire bonder used in packaging and bonding work.[1][2]

The West Bond 4 KEX has a 20 inch by 20 inch work platform, a 6 inch by 8 inch heated work holder, a conventional 45 degree wire feed, and a bond force range of 10 to 150 grams.[1][2]

How it works

The West Bond 4 KEX uses conventional 45 degree wire feed and a specified bond force range to carry out bonding operations.[1][2]

Where it fits in the process flow

General reference — not yet source-verified

Wire bonding is a backend semiconductor assembly step that follows device fabrication and die placement.

Wire bonding connects the die or component to the package structure before later assembly and test stages.

Applications

General reference — not yet source-verified

Wire bonders are used in semiconductor packaging to make electrical interconnects for assembled devices.

Wire bonding is used in packaging workflows that require fine-pitch connections between a device and its package or substrate.

What do the numbers mean?

Power & electrical1

Voltage
115V, 50/60Hz, 3.2A[1]
Accurate?

Configuration & options7

20" × 20" work platform[1]
Accurate?
6" × 8" heated work holder[1]
Accurate?
Conventional 45° wire feed[1]
Accurate?
Bond force range
10 – 150 grams[1]
Accurate?
Work platform size
20" × 20"[1]
Accurate?
Heated work holder size
6" × 8"[1]
Accurate?
Wire feed type
Conventional 45°[1]
Accurate?
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • Voltage115V, 50/60Hz, 3.2A[1]

Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What type of machine is the West Bond 4 KEX?

The West Bond 4 KEX is a wire bonder used in packaging and bonding work.[1][2]

What are the main working-area specifications of the West Bond 4 KEX?

The West Bond 4 KEX has a 20 inch by 20 inch work platform and a 6 inch by 8 inch heated work holder.[1][2]

What wire-feed arrangement does the West Bond 4 KEX use?

The West Bond 4 KEX uses conventional 45 degree wire feed.[1][2]

Not publicly documented

The following facts about the 4 KEX 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 4 KEX are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the 4 KEX 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 4 KEX 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 4 KEX are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the 4 KEX is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (2)Every fact above is drawn from these public sources
  1. [1]inventory listing
  2. [2]4 KEX — West Bond | Specs, Sourcing & Service | Waferpedia — waferpedia.comwaferpedia.com
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Last updated Oct 4, 2026.

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