Cyclopentanone (Cyclopentanone) is a saturated, non-chromosomal, transparent liquid that smells like mint or acetone.
In the advance electronics process, CPN is considered a remarkable thing.High polar solventI don't know. The technology centered on excellent chemical stability and precision. As an electronic product, the company provides a strictly controlled CPN metal ion content of up to the PPB level, which is extremely low. Its molecular structure gives it excellent resin solubility and penetration.To maintain the high-level quality of the production without compromising the precision of the base, it is an essential feature of the optical and semi-directoral field.。
Basic Data & Physical
CAS Number
120-92-3
Look
Transparent uncoloured liquid
Application
CPN (CPN) plays the role of high-performance solvents and carriers in the electronic/semi-director industry. It is one of the most common diluents and solvents in the photorest (photoresist) formulation due to its scalable point and its superior polarity, which ensures the balance and adsorption of the photoresist membrane.
In the "general industrial industry", it is widely used for the high-end synthesis of medical and agropharmaceuticals, or as a solution for special coatings. Its high solubility and relative lower toxicity allow it to demonstrate the potential to replace traditional high toxicity solvents in the extraction and washing process of fine chemicals.
Density
0.947 – 0.950 cm3
Flash.
31°C (closing glass)
Solvability
| Category | Item | Solubility | Electronic/industrial applications |
| Water/extreme solvent | Water | Microsolve | Be prepared to be water-friendly and easily removed in the latter part of the wash. |
| An organic solvent. | ethanol, ether, acetone | Full solution. | This can be combined with a variety of industrial solvents to adjust the curvature. |
| High molecular resin | epoxy resin, polyurethane, photoresist resin | Excellent. | Use as the main solvent for photoresistants to ensure membrane thickness consistency. |
| Engineering plastics / grease | Polycarbonate, most grease | Good. | Decontamination and defamination of the surfaces of sophisticated electronic parts. |
Advantages
Physical and heat stabilization
CPN has a higher flash point (as opposed to acetone) and an appropriate rate of velocity, which makes it extremely smooth to rotate and does not cause murky decomposition in a high purity pattern.
Effectiveness and penetration
Low surface tension, which can easily penetrate a tiny crystal-circle groove, increases the efficiency of photoresisting or cleaning processes and reduces residues.
Formula Compatibility
Good solubility with multiple units and additives to reduce the risk of layering. At the same time, because of its efficient solubility, the total use of solvents is reduced.
Use Help
Semiconductor and electrical industries
- Photoresistor solvent: The main solvent composition as an ARF/KrF photoresistant, adjusted for viscosity.
- Crystal Circle Edge Cleaning (EBR): Effectively removes the remaining photoretarded piles at the edge of the crystal circle without trace.
- Capacitors electrolyte: Solvent media for specific high-performance electrolytic capacitors.
- The tablet display (FPD) is made: as a paint dispersing and plastering agent in colour-stained film production.
General industrial use
- Medical and agropharmaceutical synthesis: as a mesochemical medium for synthetic cyclopentamine and microbicides.
- High-performance coating: special anti-conservation solution for aviation, car industry.
- Precision machine cleaning: defamination of high-value sophisticated parts instead of highly toxic solvents.
CPN application for photoresisting advantage
In the semi-conductor yellow-ray process, the choice of solvents directly affects the degree of equilibria of the photoresisting film and subsequent dissociation. The main reason why CPN became the main electro-grade solvent is its unique molecular structure.
Molecular polarity and solubility
The CPN has a strong, polar cell, which makes it extremely high. Hansen solubility parameters。
- I'm close.: The polar parameters for CPN are compatible with the height of most photoresist resins (e.g. Novolac phenol resin, polystyrene PHS).
- Dissolve effectsIn the process of separation, CPN can quickly penetrate the interlocking high-molecular matrix, causing "solvation" and extending the large-molecular chain, softening and dispersing the light from the crystal surface, and avoiding the creation of rigid residues.
Surface tension and micro-synthesis permeable
The width of Trench and Via has entered the nanoscale as the production nodes shrink.
- Low surface tensionThe surface tension of CPN is about 32.6 mN/m, which is lower than many traditional polar solvents.
- Snuggle.: Low surface tension helps the CPN to overcome the edge effects of centrifugal forces when it rotates, and to make sure that the Zero Dead corner is cleaned by using a small, fine, nuanced structure that goes deep and wide.
Flow speed and fluency
During the photoresisting process, the speed at which the solvent is activated determines the balance of the film thickness.
- Appropriate vapour pressure.: CPN has a boiling point of about 131 °C with a slower rate of acetone than NMP。
- Fluid smoothingThis "middle-drive" feature provides a perfect buffer period, allowing the photoresistor to flow in sufficient time on the crystal surface to reduce the "radiation stripes" generation.
| Compare Item | CPN (cyclopentone) | PGMEA (propiol acetate) | NMP (N-methylacne) |
| Solution (high molecule) | Extreme | John. | Great. |
| Speed. | Medium | Slow | Extremely Slow |
| Surface tension | Lower | Medium | Medium High |
| Environmental impacts | Biodegradable. | High security. | Reproductive toxicity concerns (restricted) |
| Main positioning | High end light resistance dilution, special cleaning | General photoresistants | Tradition evaporation, battery plaster. |
Security & Save Proposal
Save Condition
It should be stored in a cold, dry and well-ventilated warehouse dedicated to dangerous goods. From the source of the fire, the heat and the strong oxidizer. It is recommended that the temperature be saved at not more than 30°C.
Operate environmental and operational advice
The production area should be equipped with a blast-proof ventilation system and operators need to wear electrostatic working clothes and chemical-resistant gloves (e.g., nitride rubber). It is strictly forbidden to smoke or use open fire in operating areas.
Transport advice
- UN Number: UN 2245
- Transport type: Category 3 Flammable liquids. Packagings should be secured during transport to prevent collision leakage.
