Plasma Cleaning & Activation
A vacuum plasma system uses low-pressure gas and RF power to generate reactive species that clean, activate, or modify surfaces without high heat. Applications include removing organic residues, increasing surface energy for better bonding, improving adhesion for coatings and inks, photoresist descum/ashing in electronics, and preparing polymers, metals, glass, and ceramics for assembly. It delivers uniform, repeatable treatment with recipe control (pressure, gas, power, time), supporting industries like semiconductors, electronics, medical devices, automotive/aerospace, and general manufacturing.
Relevant industries
Plasma surface treatment serves Semiconductor, Medical Device, Lifesciences, Electronics, Defense, Aerospace, and Automotive markets. It cleans, activates, etches, and functionalizes surfaces for reliable bonding, coating, and assembly—supporting photoresist removal, via cleans, catheter adhesion, biocompatible finishes, rugged electronics, lightweight aerospace composites, and high‑durability automotive components with uniform, low‑temperature, recipe‑controlled processes.
Semiconductor
Vacuum plasma enables surface cleaning and activation across the full semiconductor manufacturing flow — from bulk photoresist ashing, descum, and SU-8 etching, through wafer-to-wafer and die-to-wafer direct bonding pretreatment, generating high-energy hydrophilic interfaces for strong, void-free bonds. In back-end and advanced packaging, plasma removes native oxides for solder bump activation, improves underfill wetting, and reduces flip-chip voids. Prior to wire bonding, plasma cleans and conditions lead frames, bond pads, and die surfaces, with further applications including EMC adhesion promotion, TSV sidewall cleaning, and RDL surface preparation.
Optics
Vacuum plasma cleans and prepares optical surfaces — including lenses, prisms, fiber optics, and gratings — improving both transmittance and reflectance. It is equally effective as a pretreatment to promote adhesion of anti-reflection, filter, and protective coatings.
Optoelectronics
Vacuum plasma supports optoelectronic device fabrication through resist ashing, descum, passivation preparation, and ohmic contact activation. It is used for backside thinning and cleaning in BSI image sensors, activation prior to anti-reflection coatings, and surface preparation before metallization and hydrogen passivation. Packaging applications include TO-can and surface mount package cleaning, optical window cleaning, fiber pigtail attachment preparation, and lens element activation.
Power Electronics
Vacuum plasma is essential in wide bandgap power device fabrication, enabling SiC etching, GaN HEMT surface passivation, gate oxide preparation in MOSFETs, and resist ashing for device patterning. It is equally critical for ohmic and Schottky contact preparation, lead frame and substrate activation, die attach surface preparation, and encapsulant and gel adhesion in power module packaging.
Energy
Plasma is used across multiple energy technology sectors. In solar and photovoltaics, it enables silicon surface passivation, electrode cleaning for improved battery efficiency, and separator membrane activation to reduce internal resistance. In fuel cells, plasma activates polymer electrolyte membranes, improves bipolar plate hydrophilicity and water management, and prepares surfaces prior to catalyst deposition and layer bonding. In power module packaging, plasma ensures void-free solder and sinter joints critical for thermal management in high-power energy conversion systems.
Aerospace & Defense
Vacuum plasma is used in aerospace and defense for photoresist ashing, descum, and critical cleaning applications where ultra-clean or high-energy surfaces are required for bonding, coating, or painting. It effectively replaces solvent wiping and mechanical abrasion, reducing labor and chemical usage while preparing metal surfaces for adhesive bonding, thermal spray coating, and anodizing without affecting tight dimensional tolerances. Plasma is also widely used in IR and UV detector preparation for tracking systems and sensors, and for conformal coating preparation on avionics PCBs — ensuring complete, void-free coverage for long-term durability in demanding environments.
Automotive
Vacuum plasma is increasingly used in the production of electronic components, sensors, and power electronics in modern vehicles, where rising complexity and precision demand consistently clean and activated surfaces. It is widely applied to resolve adhesion challenges across the broad range of dissimilar materials used in automotive manufacturing — from bonding polymers and composites to preparing metal surfaces for structural adhesives.
Medical
Plasma is widely used in medical applications ranging from well plates and microfluidics to catheters and implantable devices, making normally non-wettable surfaces bondable and functional. It is used to deposit thin films that fundamentally alter surface properties — from enabling DNA binding on polymer surfaces to creating drug-eluting and chemical-resistant coatings. Plasma is equally effective at preventing unwanted surface adhesion in applications where cell or protein attachment to a surface would inhibit the desired biological or diagnostic outcome.
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