The Application dimension of Ositive Photoresist segmentation isolates the market into four principal end‑uses: semiconductor integrated‑circuit (IC) fabrication, micro‑electromechanical systems (MEMS), flat‑panel display (FPD) production, and photonic component manufacturing. Semiconductor IC fabrication dominates the landscape, accounting for roughly 45 % of total revenue, driven by the relentless scaling of logic and memory nodes that demand high‑resolution, low‑defect resists. MEMS applications contribute about 25 %, reflecting growth in sensors, actuators, and automotive electronics where precise pattern transfer is critical. The FPD segment, at 20 %, is sustained by expanding demand for high‑definition televisions and mobile displays, requiring resists compatible with large‑area coating and high‑throughput processes. Photonic components, encompassing waveguides and optical interconnects, represent the remaining 10 %, a niche yet rapidly expanding area propelled by data‑center and telecommunications investments. Collectively, these application clusters shape the overall market size by dictating volume, pricing pressure, and R&D focus across the positive photoresist supply chain.