Indium Bump Interconnect (IBI) for Scalable Quantum Computing
Experts in Precision Die Bonding and Advanced Packaging for Quantum Computing and next-gen Quantum Technologies.
Download Our Technical White Paper

Your Full-Cycle Solutions Partner for Quantum Computing Technologies

Quantum computing is transforming how we solve the world’s most complex problems. As quantum hardware moves from prototypes to scalable products, assembly precision becomes critical — especially for superconducting qubits at cryogenic temperatures. Finetech delivers the accuracy, process control, and reliability needed to protect qubit coherence and enable scale.

Why Indium Bump Interconnect (IBI) Bonding?

To scale quantum computers, qubit coherence must be preserved across millions of interconnects. At millikelvin temperatures, even small bond or alignment errors can shorten coherence times, introduce thermal stress, and create noise.

Advanced packaging is critical — requiring precise material integration, ultra-accurate signal routing, and exceptional thermal stability. Conventional interconnects fall short, making specialized methods like Indium Bump Interconnect essential for superconducting qubits.

WMI - IBI

Cryogenic stability – Indium’s ductility and superconducting compatibility (Nb, Al, NbN) mitigate CTE mismatch.

WMI - IBI

High precision – Sub-micron flip-chip bonding technique delivers consistent, low-loss interconnects.

WMI - IBI

Reliability – Stable under high currents and repeated cryogenic cycling ensuring consistent qubit performance over time.

Building quantum computing hardware demands more than advanced die attach equipment. That’s why we provide high-precision die bonders,and process development expertise for a comprehensive solution tailored to your specific application.

Our Solution

FINEPLACER® femto 2 – Precision Bonding for Quantum Computing Manufacturing

The femto 2 delivers sub-micron placement accuracy and process flexibility designed for the unique demands of quantum processors assembly. From R&D to pilot production, it ensures precise, reliable bonding of the most delicate components in scalable quantum computing workflows.

🔬 Unmatched accuracy

⚙️ Scalability

🛡 Industry-leading yield

Engineering Reliability for Quantum Computing Scale

Sub-micron precision and cryogenic stability drive every Finetech solution – discover how we safeguard qubit performance at scale.

icon

Sub-micron alignment & <1 µm co-planarity control ensure uniform bondline thickness

icon

Industry-leading yield rate >99% lowers cost of quantum device manufacturing

icon

Flexible IBI bonding processes: cold/thermal compression, oxide reduction, reflow

icon

Precise force & temperature management (<1K accuracy) for maximum process control

icon

Controlled N₂ / formic acid environment for clean, reliable bonds

Standardizing Indium Interconnects for Scalable Superconducting Qubits

Superconducting quantum processors scaling past 100 qubits are manufactured at the Walther-Meißner-Institut with the trusted FINEPLACER® femto 2, using Finetech’s Indium Bump Interconnect bonding process to deliver stable, reproducible results under extreme cryogenic conditions.

Precision Bonding Across Quantum Computing Technologies

No matter your quantum architecture, whether superconducting qubits, trapped-ion qubits, photonic qubits, neutral atom qubits, spin qubits, or topological qubits, Finetech brings over 30 years of advanced packaging expertise. With precision equipment, tailored in-house processes and a wide range of bonding methods, we help you move from research to scalable quantum production with reproducible results.

ibi

Indium Bump Interconnect

ibi

Thermo-Compression Bonding

Adhesive UV Curing

Adhesive Bonding / UV Curing

Ultrasonic Bonding

Ultrasonic Bonding

Laser Assisted Bonding

Laser-Assisted Bonding / Eutectic Bonding

ibi
Indium Bump Interconnect
ibi
Thermo-Compression Bonding
Adhesive UV Curing
Adhesive Bonding / UV Curing
Ultrasonic Bonding
Ultrasonic Bonding
Laser Assisted Bonding
Laser-Assisted Bonding / Eutectic Bonding

Is a Reliable, Standardized Indium Bump Interconnect Bonding Process What Your Superconducting Qubits Need?

Contact Us

If you have a service request, please click here.

This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.