Electroglas
4090 u Film Frame
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 Electroglas 4090 u is a film frame prober. The Electroglas 4090 u is manufactured by Electroglas.[1][2][3]
What it is
How it works
General reference — not yet source-verifiedFilm frame probers index the film frame to position individual die under a probe card. A chuck holds the frame steady while probe needles make electrical contact with bond pads on each die. Precision motion stages step the frame in X and Y directions, and a vision system aligns the probes to the die pattern. Test signals are sent through the probe card to the tester electronics.
Where it fits in the process flow
General reference — not yet source-verifiedFilm frame probers are used in back-end semiconductor processing, after wafer thinning and mounting on film frames. The step typically follows dicing and precedes final packaging or tape-and-reel operations. The machine enables known-good-die testing at the strip or frame level.
What do the numbers mean?
Configuration & options7
- Parts unit[1]
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
Not publicly documented
The following facts about the 4090 u Film Frame 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 4090 u Film Frame are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the 4090 u Film Frame 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 4090 u Film Frame 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 4090 u Film Frame are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 4090 u Film Frame 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 (4)Every fact above is drawn from these public sources
- [1]inventory listing
- [2]Equipment inventory listing
- [3]Equipment inventory listing
- [4]Inventory photo
Last updated Oct 3, 2026.
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