Photonic Wire-Bond Packaging Director — Quantum Instruments

The mandate

A quantum instrument uses three-dimensional printed photonic wire bonds to connect dissimilar laser, modulator and detector chips whose facet heights and mode fields vary. Laboratory units achieve low loss after expert alignment, but pilot builds show polymer shrinkage, interface contamination and thermal drift that undermine yield and service replacement. The defined problem is to establish a repeatable packaging cell without erasing the technology’s flexibility through narrow manual selection.

The deliverables are a chip-interface taxonomy, incoming-facet specification, alignment and writing process window, polymer and cure control, optical-loss budget, production-test plan, environmental reliability matrix, repair boundary, pilot build and accepted transfer dossier. Artefacts must bind chip lot, surface condition, machine, write path, material batch, cure history and test reference. The project must state configurations not yet industrialisable.

Four milestones govern six months: interface and failure baseline by 30 October 2026; approved process window, material controls and equipment study by 18 December; witnessed mixed-chip pilot plus environmental testing by 19 February 2027; and accepted cell controls, repair limits and client-team reproduction by 31 March. Milestone reports include failed bonds and rework attempts, not only selected low-loss channels.

Acceptance requires photonic engineers to reproduce coupling budgets, manufacturing to build mixed-supplier assemblies within takt, reliability to close material and interface mechanisms, and service to execute an approved replacement. The sponsor returns one controlled defect register within six working days. Average insertion loss cannot satisfy acceptance when tails, polarisation, thermal cycling or manual alignment time remain outside the reported population.

The client provides photonic die, facet and mode data, polymer materials, writing equipment, raw loss measurements, environmental chambers, pilot technicians, supplier contacts and representative instrument assemblies. It funds agreed tooling and destructive sections. The director cannot release instruments, alter laser safety limits, publish supplier structures or select long-term chip sources; accountable client leaders retain those decisions.

Why this is external work

Photonic wire bonding spans chip design, surface preparation, additive optics, polymer behaviour, precision motion and system service. Internal researchers can produce excellent individual links but need an independent industrialisation specialist to expose population and takt constraints. The engagement ends when client technicians reproduce bounded mixed-chip assemblies and own the declared limitations.

What you will own

• Classify chip facets, mode fields, height offsets, surface treatments, keep-outs and alignment references across intended suppliers.
• Establish writing, alignment, polymer dispense, cure, environment and equipment windows using full loss distributions.
• Separate mode mismatch, surface contamination, path geometry, shrinkage, thermal drift and measurement-reference error.
• Design incoming inspection and production tests that predict coupling and ageing without excessive expert intervention.
• Govern mixed-chip pilots across material batches, machine states, operators, rework and representative instrument configurations.
• Define repair and replacement boundaries that preserve cleanliness, optical integrity, calibration and service economics.
• Deliver accepted cell controls, reliability evidence, unsupported configurations, equipment needs and client-led builds.

Candidate qualifications

• Directed photonic packaging industrialisation involving additive optical links, heterogeneous chips or precision polymer structures at repeatable production scale.
• Can evidence a low-loss laboratory link that failed population, environmental or service-replacement requirements.
• Understands optical modes, facet coupling, additive fabrication, polymer shrinkage, cure, contamination and alignment metrology.
• Has converted expert alignment into measurable process windows and production-relevant equipment controls.
• Worked across photonic-chip suppliers while protecting proprietary structures and preserving interface evidence.
• Leaves technicians capable of reproducing assemblies rather than maintaining dependence on a research specialist.

Non-negotiables

• Will attend Amsterdam, Eindhoven and Lausanne packaging, pilot and supplier sessions.
• Has personally industrialised heterogeneous photonic interconnects through environmental reliability evidence.
• Accepts milestone rejection when selected low-loss links omit failed builds, rework or cycle time.
• Will disclose photonic foundry, polymer, equipment, laser and quantum-instrument relationships before engagement.

1. 49 words maximum. Which photonic link result changed most when full build yield and environment were counted?
2. 49 words maximum. How would you distinguish mode mismatch from polymer or alignment drift?
3. 49 words maximum. What proves a photonic wire-bond process is transferable beyond one expert?