Cohu
Delta Matrix
What it is
The Cohu Delta Matrix is a pick-and-place test handler manufactured by Cohu.[2]
How it works
General reference — not yet source-verifiedA pick-and-place handler uses mechanical grippers or vacuum pickups to move individual devices from a supply tray or tube to a test site.
At the test site the handler aligns the device with a set of test contactors or a probe card, making electrical connections for parametric and functional testing.
Where it fits in the process flow
General reference — not yet source-verifiedThe handler is used in the semiconductor final test (also called package test or assembly test) step, which occurs after wafer dicing and packaging.
Downstream processes include tape-and-reel packaging, tray loading, or direct shipment of tested devices.
Applications
General reference — not yet source-verifiedThe handler is suitable for high-volume testing of integrated circuits in a variety of package types, such as QFN, BGA, or leaded packages.
What do the numbers mean?
Configuration & options16
- Triple tire caster kit (lift)[1]
- Matrix II 3.50" lift kit[1]
- Pwr fixed cord OPT, M2[1]
- Auto cntr cleaning optn, matrix[1]
- Option, manual tray drawer[1]
- Kit, PPC electronics[1]
- Kit, TS PPC contactor[1]
- DDD cntr optn, X2 sensor assem[1]
- Cold option, Matrix II[1]
- Pusher option kit 500lb[1]
- Option, TS heads together[1]
- Upgrade kit, standard closed loop ion option[1]
- Option, ground fault monitor, V2, pre-wired[1]
- TS X-pitch 2.250[1]
- TS cold manifold, 2.250[1]
- 4 chk kit, X2, 63.5mm YP, G3 (x2)[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
How does the handler decide where to place a device after testing?General reference — not yet source-verified
The handler's control system receives the test result from the tester and directs the pick head to place the device into the appropriate output bin. A typical configuration includes one bin for passing devices and multiple bins for different failure categories.
Why is temperature control important in test handling?General reference — not yet source-verified
Many semiconductor devices must be tested at specified temperatures, such as hot or cold extremes, to guarantee their electrical specifications over the intended operating range. Thermal conditioning built into the handler ensures that measurements are taken under the required temperature conditions.
Not publicly documented
The following facts about the Delta Matrix 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 Delta Matrix are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the Delta Matrix 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 Delta Matrix 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 Delta Matrix are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Delta Matrix 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]Interface Solutions - Test Contactors / Probe Heads | Cohu — cohu.com (Oct 2, 2023)web.archive.org
- [3]Inventory photo
- [4]Inventory photo
Last updated Oct 1, 2026.
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