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PROMOSOLV NEO A2: Replaces 3M Novec™ 71IPA, a high-penetration, high-efficiency cleaning technology specifically designed for SMT and packaging processes.By combining alcohol-enhanced formulations, chemical residues under fine-pitch components are completely eliminated while maintaining PFAS-free safety.

With global environmental regulations entering a period of stringent monitoring, especially the phase-out of 3M™ Novec™ 71IPA and 7100 , your processes require a more robust and secure continuation solution. Inventec’s PROMOSOLV™ NEO A2 was developed to meet the higher standards of flux-free and rapid drying.
As a core member of the Greenway sustainability series, A2 combines cutting-edge chemical performance with corporate social responsibility, helping you maintain superior production capacity competitiveness in the wave of net-zero transformation.

Core Product Advantages

PROMOSOLV™ NEO A2 maintains its environmentally friendly characteristics while enhancing its ability to remove stubborn contaminants, making it a powerful support for back-end semiconductor manufacturing processes.

  • Enhanced cleaning power: Compared to general solvents, NEO A2 has a faster dissolution rate for sintering residues after soldering of high-lead solder paste (such as HT 301T) or long-lasting flux .
  • Excellent surface tension control: It has extremely low surface tension (14.5 mN/m) and can easily penetrate into the tiny gaps of Flip Chip and High-Density Interconnect (HDI) structure.
  • No flash point safety: It is a non-flammable liquid and is extremely safe to operate in high-temperature vapor degreasing equipment, requiring no special explosion-proof configuration.

Safety & Environmental Commitment

In response to the Taiwanese semiconductor industry’s strong focus on “chemical lifecycles,” NEO A2 offers physical properties that meet future specifications.

  • Extremely low GWP (Global Warming Potential): Values ​​are far lower than those of traditional cleaning agents, helping OSAT (Outsourced Operating Test and Packaging) plants reduce carbon emissions in Scope 3.
  • Zero Ozone Depletion (Zero ODP): Protects the atmosphere and complies with the most stringent environmental regulations in Taiwan and internationally.
  • Chemical and physical stability: Contains no acidic substances and remains neutral after multiple distillation cycles, without damaging equipment or precision semiconductor components.

Exceptional Performance

In semiconductor applications where high reliability is required, the NEO A2 ensures that the electrical characteristics of the packaged product remain unaffected.

  • Zero residue detection: Combined with the vapor phase cleaning process, it can effectively remove ionic contamination and prevent electrochemical migration or leakage of the chip during long-term operation.
  • Excellent material compatibility: It does not corrode commonly used semiconductor leadframes, ceramic substrates, metal lids, and most engineering plastics.
  • Process consistency: A stable azeotropic formula ensures that the composition in the cleaning tank does not change with evaporation time, maintaining stable production line quality.

Cost optimization

NEO A2 helps companies achieve a balance between environmental protection and cost by improving process efficiency.

  • Low boiling point and low energy consumption: With a boiling point of approximately 45°C, it can significantly shorten the heating start-up time and reduce the daily electricity costs of cleaning equipment.
  • High recovery rate: Excellent thermal stability allows the solvent to be recovered efficiently countless times in the vapor phase cleaning equipment, reducing the frequency of chemical replenishment and waste liquid treatment.
  • Eliminates wastewater treatment costs: The entire dry process eliminates the need for significant investment in wastewater filtration, neutralization, and emission monitoring, unlike traditional water washing.

Application area 

  • Power semiconductor packaging: Thoroughly clean the thick flux residue after high-temperature soldering.
  • Automotive Electronics: Meets extremely high cleanliness standards to ensure long-term reliability.
  • High-end medical electronics: Precision cleaning for implantable or high-precision diagnostic devices.
  • Space Grade: Provides the ultimate surface cleanliness required for operation in extreme environments.

Health, safety and environment

PROMOSOLV NEO A2 is a GREENWAY product.
THERMASOLV CF2 Greenway 29%

Main factors to reduce:

Human safety and health
  • Safety guarantee with no flash point: Possessing non-flammable properties and having no flash point , it ensures 100% operational safety even under high-intensity working conditions or equipment operation. This not only simplifies warehousing standards but also significantly reduces the risk of fire accidents in factories, providing absolute stability for business operations.
  • Low-toxicity, non-corrosive, and user-friendly design: Designed with operator health in mind, it has extremely low toxicity and contains no harmful chemicals; at the same time, it exhibits excellent compatibility with various precision substrates, effectively removing contaminants without causing corrosion damage to parts, ensuring consistent product quality.
Environmental protection and resource conservation
  • Ultra-low Global Warming Potential (GWP): An industry-leading environmental standard with an extremely low GWP (GWP < 10), helping companies easily meet increasingly stringent international carbon emission regulations and implement green transformation.
  • Optimized boiling point configuration: By forming a stable azeotrope with high-boiling-point solvents , the overall operating temperature is effectively reduced.
  • Significantly reduced energy consumption: Lower operating temperatures mean less electricity consumption and preheating time, while also reducing solvent loss due to high-temperature evaporation, helping companies achieve a win-win situation in terms of energy and raw material costs.
  • Extremely simplified resource allocation: This product requires no subsequent water washing process, completely eliminating the burden of wastewater treatment. Through an efficient recycling mechanism, it reduces the waste of chemicals and energy at the source , creating a lean, efficient, and low-burden cleaning solution.

Process Example

Optimal processes depend on a variety of factors, such as operating conditions, equipment, required cleaning time, and the nature of the contaminants. Our team is ready to advise you.

Separated co-solvent

TOPKLEAN EL 80

Conc: 100%
Temp: 60/116
US: optional
Time: 5-10 min
CLEANING
PROMOSOLV NEO A2

Conc: 100%
Temp: 33/91
US: optional
Time: 2-5 min
RINSING
PROMOSOLV NEO A2

Conc: 100%
Temp: 30/111
US: optional
Time: 2-5 min
RINSING
DRYING ZONE

Conc: 100% NEO A2 vapor
Temp: 33/129

Time: 5-60 sec
DRYING

Single solvent method: Removal of fluorinated lubricants

PROMOSOLV NEO A2

Conc: 100%
Temp: 33/91
US: optional
Time: 5-10 min
CLEANING
PROMOSOLV NEO A2

Conc: 100%
Temp: 30/86
US: optional
Time: 2-5 min
RINSING
DRYING ZONE

Conc: 100% NEO A2vapor
Temp: 33/91

Time: 5-60 sec
DRYING