How we assemble our SPAD cameras from chip to shipment

We’re excited to share the intricate journey behind the creation of our cutting-edge SPAD cameras. They are designed to push the limits of light detection and revolutionize imaging in extreme conditions.

At the heart of every camera lies our proprietary SPAD (single-photon avalanche diode) sensor, capable of detecting individual photons with extreme sensitivity. We are leading experts in designing and manufacturing SPAD sensors, but creating a high-performance SPAD camera goes far beyond sensor design. It requires a complete ecosystem: advanced electronics, intelligent firmware, robust mechanical systems, and meticulous assembly and testing procedures.

Here’s a look at our assembly process:

1. Chip preparation and cooling integration
   The process begins with the initial testing of the chip, followed by a pre-characterization phase to assess its baseline performance. In parallel, we assemble the chip’s cooling system, which is then integrated with the chip to ensure it maintains optimal temperature during operation. This cooling-enhanced chip is a key component that is later plugged into the mainboard.
2. FPGA and mainboard integration
   Meanwhile, our electronics team flashes the FPGA with custom firmware and connects the programmed FPGA to the mainboard PCB. Once ready, the mainboard with the FPGA is placed into the back aluminum casing, securing it within the device’s structural core. At this point, we run assembly tests to verify all internal components are functioning correctly.
3. System integration and device testing
   With the internal systems verified, we plug the chip and its cooling system into the mainboard, creating the brain of the camera. A series of device-level tests follow to ensure full integration and performance consistency.
4. Mechanical assembly and enclosure
   After confirming internal functionality, we move to the mechanical enclosure. This involves installing fans onto the aluminum cover, followed by attaching the lens adapter and sealing the enclosure with a lid. Once fully enclosed, the aluminum case is closed, completing the camera’s physical structure.
5. Final testing and calibration
   From here, each unit receives a unique serial number (SN labeling) for traceability, and undergoes final characterization to precisely measure its performance. We then perform device calibration to fine-tune its accuracy and ensure peak efficiency. With all data collected, we generate a performance sheet detailing the specifications and test results for the customer.
6. Packaging and delivery
   Finally, the fully assembled, tested, and calibrated SPAD camera is carefully packed and prepared for shipment.

Every camera that leaves our facility reflects the synergy of advanced science and engineering. It’s the seamless integration of our SPAD technology with precise electronics, intelligent firmware, and rigorous testing that allows us to deliver industry-leading imaging solutions one photon at a time.