16502 four-wire interconnect resistance comparison
Chroma ATE · Geometric and electrical metrology
- Purpose
- RDL-via or daisy-chain resistance comparisons need lead and contact voltage drops controlled.
- Technical approach
- 16502 measures low resistance using four-wire connections with DC, bipolar-pulse or low-excitation dry-circuit modes.
- Scope of use
- Conductors and interconnect coupons need separate current/sense access and validated excitation and measurement conditions.
- Limitations and open questions
These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitationsChain resistance does not automatically isolate one via; display range is not single-via resolution. Control contacts, thermal EMF and self-heating.
What to prepareBLNKK suggests preparing contact diagrams, chain counts, expected resistance, allowable current, fixtures and temperature records.
Confirm with the supplierConfirm connections, zeroing, repeatability, pulse/dry-circuit conditions, temperature-compensation method and required options.
- Public evidence
- Chroma documents four-wire operation, thermal-EMF cancellation and temperature compensation; temperature probes and scanning are optional.
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BLNKK organizes information from public sources. A company profile does not imply a documented solution. Applicability still needs confirmation against your samples and engineering conditions.