Issue link: https://iconnect007.uberflip.com/i/1546933
68 SMT007 MAGAZINE I OCTOBER 2026 used on die bonders and offers both box-oven and snap-cure options, helping manufacturers evaluate a zero-added-PFAS material without requiring a funda- mentally different dispensing process. For manufacturers considering alternative die- attach materials, this combination can help reduce the process disruption associated with qualification while allowing throughput, equipment compatibility, and reliability to be validated under their specific production conditions. When the next customer disclosure request arrives, the engineer who has already qualified this copper-filled material can respond with a docu- mented zero added PFAS formulation supported by appropriate product compliance documenta- tion, rather than having to react to a new materials requirement, and that level of preparedness is valu- able with a PFAS regulatory environment. 10 Qualification Risk Affects the Entire Supply Chain New materials must pass the full qualification cycle without negatively impacting throughput, yield, or equipment uptime, yet it seems that qualification is where good materials go to get delayed. A new die attach chemistry can meet every spec and still fail if it demands exotic processing, unfamiliar tooling, or an elaborate test plan that eats up the project timeline. The engineer's goal is straightforward: Pass the qual cycle without losing throughput, yield, or equipment uptime. This copper-filler material makes that path familiar rather than novel. Its low resin bleed-out (RBO) and low outgassing characteristics help minimize contamination and support reliable processing. Its dispensing rheology is optimized for high-throughput automated dispensing with minimal machine downtime, while box-oven and snap-cure capability provides flexibility to select a cure approach suited to the package and manu- facturing process. Compatibility with time-pressure pump systems used on most die bonders can also help facilitate integration into established produc- tion environments. A responsible qualification plan should still measure more than room-temperature die shear: deposit geometry, bondline thickness, void fraction, acoustic microscopy before and after stress, mois- ture sensitivity, elevated-temperature die shear, thermal resistance, and failure mode. These all belong in the record, but the difference is that this material can be evaluated through that plan using standard equipment. The engineer who qualifies ATROX is not signing up for an untested science project. They are starting with established material and process data, then using those published parameters as a basis for package-specific qualification and validation within their own equipment and manufacturing conditions. Stage Key Question Evidence Material screening Does the material meet thermal, electrical, rheological, storage, and cure requirements? Technical data, handling review, compatibility screening Process development Can the line produce stable deposits and bondlines? Dispense capability, bondline measurement, void mapping, cure profiling Package qualification Does the package survive assembly and reliability stress? Die shear, moisture sensitivity, reflow, acoustic microscopy, cross-sections, thermal and electrical testing Production release Can performance hold across time, sites, and suppliers? Control plan, acceptance limits, change control, traceability, customer documentation Table 1: The qualification cycle is one an engineer already trusts