The SiOx Barrier Films for Medical and Electronic Parts Packaging segmentation by application distinguishes two primary demand drivers: Medical Devices and Electronic Parts. Within the medical segment, sub‑applications include implantable device enclosures, sterile diagnostic kit pouches, and drug‑delivery system casings, each requiring ultra‑low moisture transmission to preserve biocompatibility and product efficacy. The electronic segment comprises semiconductor wafer protection, printed‑circuit‑board (PCB) encapsulation, and flexible‑electronics shielding, where barrier performance directly influences yield and reliability. Quantitatively, the medical‑device application accounts for roughly 55 % of total market revenue, reflecting higher unit prices and stringent regulatory compliance, while electronic‑parts packaging contributes the remaining 45 %, driven by volume‑scale production and rapid product cycles. This application‑level split underpins the overall market size, as investment in R&D, production capacity, and supply‑chain logistics is allocated proportionally to the revenue share of each segment.