Microwaves Are Redefining the Fab

• Gentler, highly selective chemistries: Microwave plasma prioritizes neutral radicals over energetic ion bombardment. This delivers gentler processing that preserves ultra-thin metals, low k dielectrics, and bonding interfaces. This core physics behind superior uniformity and yield is critical in advanced packaging and front-end cleans.
• Volumetric heating solves the ultra-shallow junction dilemma: For sub 10nm junctions, conventional Rapid Thermal Annealing (RTA) risks diffusion and profile smearing. Microwave annealing (MWA) provides rapid, volumetric heating - activating dopants while minimizing diffusion.
• Superior Activation: Peer reviewed studies demonstrate steep junctions and activation at lower lattice temperatures versus RTA, thanks to dielectric polarization and ohmic conduction mechanisms. Industry research shows MWA can activate dopants above equilibrium solubility while retaining thermal stability, precisely what is needed for nanosheets and monolithic 3D sequential integration.
• Eco-friendlier cleaning: Microwave plasma cleaning delivers eco friendlier removal of photoresist residues and native oxides, increases wettability, and preps surfaces for hybrid bonding/flip chip, which is critical as 2.5D/3D packaging and heterogeneous modules scale.
• Improved Uniformity and Productivity: Fabs care about cycle time and across wafer uniformity. Microwave cavities/waveguides and susceptors mitigate standing wave artifacts, driving uniform activation and repeatable strip/etch, with measurable gains in productivity.

The fabs winning 2nm, 3D, and advanced packaging are switching physics, and microwave processes are the levers.

Industrial leaders today face a clear mandate: increase performance, reduce emissions, and ensure operational predictability. Achieving all three at once has historically forced trade-offs, but MKS advanced microwave processing is changing that equation.

Microwave technology delivers precise, volumetric heating, significantly improving energy efficiency and process stability across a wide range of demanding applications from material growth to advanced materials processing.

• Operational Efficiency: Microwave energy eliminates heat-transfer bottlenecks and stabilizes thermal profiles. This directly translates into lower operating costs, more consistent product quality, and higher throughput in continuous industrial environments.
• Lower Emissions, Cleaner Outputs: Microwaves heat internally without combustion, thus reducing emissions, improving safety, and enabling cleaner, higher-value recovered materials with fewer contaminants.
• Modular Scalability: From compact units to full-scale industrial systems, microwave platforms support decentralized processing models, reduce infrastructure needs, and accelerate deployment timelines.
• Precision, Reliability & Control (Powered by MKS): At the core of many advanced microwave systems are MKS’ high-precision microwave power platforms, built for demanding applications. Their regulated power delivery, intelligent matching, and robust system architecture provide the stability and reliability required to run these processes at scale, reducing engineering risk and improving ROI.

• Precision & Process Stability: MKS microwave generators deliver highly accurate, feedback-controlled power, enabling stable, repeatable thermal profiles essential for repeatability and consistency.
• Modular, Scalable Design: A robust, modular power system chassis, advanced filament management, and switch-mode power design ensure long-life reliability across industrial environments, whether you're deploying 915 MHz or 2.45 GHz systems.
• Lower Cost of Ownership, Field-Serviceability: What truly sets MKS apart is decades of experience supporting the world’s most demanding industries, including semiconductors, advanced materials, environmental systems, and precision manufacturing. MKS maintains a global service and support infrastructure, providing rapid response, localized technical expertise, and long-term continuity for mission-critical operations.

This means significantly lower risk, higher uptime, and a partner equipped to support demanding operations for the long run.

MKS is the partner that turns microwave physics into repeatable, production grade outcomes, integrating generators, remote plasma, and process controls to deliver lower damage, tighter dopant profiles, cleaner interfaces, and faster cycle times in real fabs.

• System-level microwave expertise: MKS provides system-level expertise (915MHz & 2.45GHz generators, remote plasma sources) integrated into fab workflows. This is vital for process stability, safe integration, and SEMI/ESD compliance across front- and back-end.
• Application breadth: MKS supports a range of applications, from gentle photoresist ashing and surface activation for hybrid bonding to low-thermal-budget anneals, all anchored in the physics.
• Yield-first outcomes: Less damage, cleaner interfaces, tighter dopant profiles, and higher throughput translate into fewer reworks and faster time-to-market - the Key Performance Indicator (KPI) that ultimately counts.

• MKS offers compact industrial microwave generators and systems in 915MHz and 2450MHz that are adaptable to a wide range of applications. See our Microwave Generators and Systems here
• Contact an MKS Applications Specialist to discuss how MKS Microwave Systems can improve your process.