Precision Handling for Direct-Conversion X-Ray Detectors Posted on November 6, 2026 by Raymundo Rabago ☰ Quick Links × Quick Links E-Store Request Quote Request Sample Contact Technical Support Product Selection Wizard Calculate Number Of Devices/Carrier Gel-Pak Brochure Vacuum Release Carrier for Medical X-Ray Detector Challenge A leading medical imaging manufacturer needed a reliable carrier for cadmium telluride (CdTe) sensors used in direct-conversion, photon-counting X-ray detectors. The devices had to move from sensor production in Japan to further processing in Forchheim, Germany, including hybridization and sensor-board assembly. The carrier also served as a mechanical interface for automated optical inspection (AOI) and assembly equipment. Because the Gel-Pak tray was used directly within these systems, dimensional consistency was critical to equipment compatibility and repeatable device presentation. Solution Gel-Pak and its distribution partner worked through multiple samples, customer visits, and design iterations to define the application-specific configuration. The selected solution was the 4-inch Vacuum Release carrier (VR44) with a highly precise print grid. The VR-44 provides a controlled, tray-based handling platform that secures the sensor array during movement while preserving access for inspection, hybridization, assembly, and automated pickup. The carrier functions as both protective packaging and a manufacturing interface across transport, AOI, and assembly operations. Product Configuration The application-specific carrier configuration includes: 4-inch VR-44 Vacuum Release tray format VR-44-16CC-00B-XL-P0685 configuration XL retention level P0685 imprint – highly precise print grid. Tray dimensions aligned with the customer’s AOI and assembly equipment Key Capabilities Secures high-value CdTe sensors during international and internal transport Preserves access for inspection, hybridization, assembly, and automated pickup Provides a consistent mechanical interface for AOI and assembly systems Supports repeatable device presentation across multiple handling steps Uses a common carrier format from development sampling through production adoption Technical Fit The application required the carrier to perform two functions: protect the CdTe sensor array during movement and provide the controlled mechanical interface required by automated equipment. The selected VR-44 configuration addressed both requirements in one tray-based format. Development Process The program began with an on-site application review and progressed through repeated sampling and customer evaluation. Development work focused on matching the carrier to the sensor geometry, confirming dimensional compatibility with equipment, and establishing a format that could support both transport and in-process handling. Multiple samples and application reviews Design iteration and application-specific configuration Customer evaluation of carrier fit and sensor presentation Dimensional compatibility review for AOI and assembly equipment Assessment of internal transport and future reuse Validation Results Customer evaluation confirmed the application-specific carrier format for continued use. Documented program outcomes included: Carrier fit and sensor presentation evaluated through repeated samples Dimensional compatibility reviewed for AOI and assembly equipment Common tray format used for shipment and internal manufacturing movement Qualified VR-44 configuration advanced to a 6,000-piece production order Business Impact By qualifying the VR-44 as both a protective carrier and a manufacturing interface, the customer established continuity across transport, inspection, and assembly. The common tray format reduced the need to reconfigure the sensor population between documented process steps and provided a repeatable format for continued production ramp-up. Product Advantage Unlike packaging used only for shipment, the selected VR-44 configuration remains part of the documented handling process. The carrier protects the devices during movement while providing the dimensional consistency required for equipment-sensitive operations. Core Product Benefits Protective retention for fragile, high-value sensors Controlled release for automated pickup Consistent device presentation Compatibility with equipment-sensitive handling operations Common format for transport and in-process handling Applications Direct-conversion X-ray detector sensors Medical imaging components CdTe sensor handling Automated optical inspection Hybridization and sensor-board assembly High-value devices requiring controlled transport and automated pickup Key Takeaway This project demonstrates how a Gel-Pak Vacuum Release carrier can serve as both protective packaging and a manufacturing interface for fragile detector sensors. By using a common, application-specific carrier across transport, inspection, and assembly, the customer established repeatable device presentation while maintaining access for downstream processing. Result: A qualified VR-44 carrier configuration that supports protected transport, automated inspection, assembly-related handling, and continued production ramp-up. Gel-Pak's experienced technical support staff is available to answer your questions related to products or associated applications. Contact Us!
