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Photoresist Packaging
Photoresist Packaging: Electronic-grade Storage and Transport Protection with Full High-purity Safeguards
With many years of deep experience in the semiconductor and display industries, Jestar specialises in the R&D and production of packaging materials for ultra-high-purity chemicals such as photoresists and solvents. We have built a complete ultra-clean packaging ecosystem, filling a critical gap in the domestic supply chain.
Photoresist drums are high-purity chemical storage and transport containers designed specifically for semiconductors and display panels, engineered for photosensitive, high-purity reagents such as photoresists. A stainless steel outer shell paired with a single-use ultra-clean liner provides light-proof sealing with no ion leaching and no bubble entrapment. Meeting SEMI cleanliness standards, they are safe and stable — ideal for storing and transporting high-end electronic chemicals.
Ultra-high-purity clean bags suited to photoresists, organic solvents and high-purity reagents. High elongation, strong impact resistance and high tensile strength, with ultra-high cleanliness and extremely low metal leaching. Used together with transfer drums, they eliminate secondary contamination and reduce hazardous waste, safeguarding ultra-high-purity chemicals.
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Photoresist Drum Series
Liner Bag Series
Ultra-clean Metal Containers: High-purity Chemical Packaging Containers
High-purity containers are specialised clean storage and transport vessels for the semiconductor and electronic chemicals industries, used mainly for the sealed storage and safe transfer of sensitive materials such as photoresists, high-purity precursors and specialty electronic chemicals.
High-purity material containers use semiconductor-grade stainless steel as the base material. Special smelting processes strictly control impurity content, giving extremely low metal ion leaching along with excellent chemical inertness and corrosion resistance — able to withstand long-term storage of highly corrosive, highly reactive electronic chemicals. The inner walls are treated with an EP polishing process, resulting in extremely low surface roughness with no weld dead corners and minimal contaminant generation, meeting high cleanliness level requirements.
The container uses an integrated sealing structure paired with high-purity corrosion-resistant sealing components for excellent airtightness, effectively blocking moisture, oxygen and external fine particles and preventing material oxidation, deterioration and performance degradation. Manufactured and inspected in strict accordance with dust-free production standards and suited to semiconductor cleanroom conditions, the range offers complete specifications and can be customised — providing a high-cleanliness, high-safety, highly stable professional carrying solution for the full chain of high-purity material storage, transfer and process application.
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Transfer IBC Tanks: Purpose-built for Large-volume Storage and Transfer
High-cleanliness transfer IBC tanks are large-capacity professional storage and transport equipment developed for high-end fields such as semiconductors, electronic chemicals and fine chemicals. They are used mainly for the sealed storage and in-plant transfer of high-purity solvents, electronic-grade reagents, photoresist ancillary raw materials and various high-cleanliness liquid materials.
High-cleanliness transfer IBC tanks are made from premium stainless steel with pure, contaminant-free material. Metal ion leaching and fine particle residue are strictly controlled, and chemical stability is excellent — resisting strong acids, alkalis and organic solvent corrosion, eliminating material contamination and quality degradation at the source. The inner walls are EP-polished, giving a smooth, dead-corner-free surface that is easy to clean with no residue, meeting high cleanliness standards for repeated use.
Supplied as standard with a high-strength reinforcing frame and a high-precision sealing structure, the tanks are leak-proof and airtight with outstanding structural stability. The large-capacity, integrated design delivers excellent load-bearing performance and high transfer efficiency, and the tanks are reusable — making them core purpose-built equipment for the safe, large-scale storage and transport of high-end high-purity materials.
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Ultra-clean PE Bottles and Drums: Low-ion, low-leaching high-purity storage and transport containers built for semiconductor G5 processes
Ultra-high-purity PE bottles and drums are integrally moulded from electronic-grade ultra-high-purity polyethylene, with low ion and particle leaching and excellent chemical stability. A high-precision sealing structure prevents permeation and locks out air, blocking moisture and impurities. Suitable for the clean storage and transfer of high-purity materials such as photoresist ancillary reagents and electronic chemicals, meeting cleanroom use standards.
Ultra-high-purity clean bottles are purpose-built containers for semiconductor G5 processes, suited to material storage and transfer across semiconductors, electronics, pharmaceuticals and fine chemicals. To achieve peak product performance, the manufacturing environment is substantially optimised beyond Class-100, effectively controlling particles at 0.1 micron to deliver a better-than-Class-100 production environment. The products offer outstanding ultra-high cleanliness with extremely low metal ion leaching, fully safeguarding the contained medium from contamination.
※ Dual-layer Structural Design
01 Outer Layer (Pigmented Resin)
Light blocking:Pigmentation prevents degradation caused by ultraviolet light.
Impact resistance:Made from impact-resistant raw materials.
02 Inner Layer (Low-leaching Resin)
Leaching control:High-cleanliness raw materials keep metal ion leaching to a minimum.
PTFE gasketSealing cap※ Particle and Metal Ion Testing
| Test Item | Particle Testing | Metal Ion Leaching Testing |
|---|---|---|
| Test Equipment | RION KS-42A | ICP-MS Agilent 8900 |
| Test Medium | PGMEA/NMP | Ultrapure water |
| Specification | ≥0.1um total ≤5pcs/mL | Metal ion leaching <10ppt |
※ Performance Testing
Performance Testing for Dangerous Goods Packaging
To ensure products meet the highest standards of safety, integrity and functionality throughout their design, manufacturing and service life, all newly produced and periodically inspected clean bottles must pass drop, airtightness, hydraulic and stacking tests, with a performance test report issued.
Testing standard: SN/T 0370.2—2021, Rules for the Inspection of Packaging for Export Dangerous Goods — Part 2: Performance Inspection
※ UN Certification
UN Marking for Dangerous Goods Packaging
Under the United Nations Recommendations on the Transport of Dangerous Goods, any packaging used for the commercial transport of dangerous goods must undergo a series of rigorous performance tests at a laboratory authorised by the competent national authority. Only packaging models that pass all tests may have the UN mark permanently stamped on the product.
①Container number
②Container category
③Relative density
④Hydraulic test pressure (kPa)
⑤Year of manufacture
⑥Country code (China)
⑦Production region and factory code
①Container number
②Container category
③Relative density
④Hydraulic test pressure (kPa)
⑤Year of manufacture
⑥Country code (China)
⑦Production region and factory code
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Ultra-clean Composite PE Drums: Corrosion-resistant, leak-proof dual-layer composite steel drums that safeguard materials
Purpose-built for the semiconductor and chemical industries, with a 304 stainless steel outer drum and a dual-layer PE liner. Combining high strength, impact resistance and ultra-high cleanliness, they provide reliable protection for storing and transporting hazardous chemicals.
※ Product Overview
- Welds, drum body, top cover and base plate all pass salt spray testing.
- A special residual-liquid reduction design cuts waste by more than 50%. The drum's sealing performance exceeds UN requirements, ensuring no leakage.
- Ultra-clean PE inner drum manufactured in a Class-100 workshop, effectively reducing particle counts.
- UN certified for safe transport.
①Container number
②Container category
③Relative density
④Hydraulic test pressure (kPa)
⑤Year of manufacture
⑥Country code (China)
⑦Production region and factory code
※ Drum Structure
Cross-section diagram
01 Composite Outer Drum
The drum body is made of 0.5 mm tinplate (SPTE), with 0.4 mm 304 stainless steel for the top and bottom.
The outer packaging uses a compliant metal shell, partly in stainless steel, effectively preventing corrosion from residual liquid and from the storage environment.
02 Inner Liner Drum
Made of dual-layer PE with excellent chemical resistance, not easily attacked by acids or alkalis. The outer layer is light-blocking black PE, providing effective shielding and good structural support; the inner layer is a natural-colour clean PE layer.
Produced by blow moulding in a single piece that balances strength and safety, manufactured in an ultra-clean Class-100 workshop under strict quality control procedures — a superior packaging choice for products with extremely high cleanliness requirements.
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Ultra-clean Glass Bottles: Low-ion, low-leaching high-purity storage and transport containers built for semiconductor G5 processes
High-purity, eco-friendly glass storage and transport containers developed for advanced semiconductor processes. They strictly follow industry leaching and ion-release standards and are suitable for storing and transporting high-purity electronic reagents and corrosive liquids.
Made from high-purity mineral raw materials with ultra-low metallic impurities, achieving low iron content and freedom from lead, cadmium and arsenic. Metal ion leaching is far below both national standards and SEMI limits. With excellent acid, alkali and heat resistance, they meet the stringent cleanliness and stability requirements of advanced processes.
※ Particle and Metal Ion Testing
| Test Item | Particle Testing | Metal Ion Leaching Testing |
|---|---|---|
| Test Equipment | RION KS-42A | ICP-MS Agilent 8900 |
| Test Medium | PGMEA/NMP | Ultrapure water |
| Specification | ≥0.1um total ≤5pcs/mL | Metal ion leaching <10ppt |
※ Performance Testing
Performance Testing for Dangerous Goods Packaging
To ensure products meet the highest standards of safety, integrity and functionality throughout their design, manufacturing and service life, all newly produced and periodically inspected clean bottles must pass drop, airtightness, hydraulic and stacking tests, with a performance test report issued.
Testing standard: SN/T 0370.2—2021, Rules for the Inspection of Packaging for Export Dangerous Goods — Part 2: Performance Inspection
※ UN Certification
UN Marking for Dangerous Goods Packaging
Under the United Nations Recommendations on the Transport of Dangerous Goods, any packaging used for the commercial transport of dangerous goods must undergo a series of rigorous performance tests at a laboratory authorised by the competent national authority. Only packaging models that pass all tests may have the UN mark permanently stamped on the product.
①Container number
②Container category
③Relative density
④Hydraulic test pressure (kPa)
⑤Year of manufacture
⑥Country code (China)
⑦Production region and factory code
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Filtration and Purification: Purpose-built for High-purity Chemical Filtration
Stainless steel high-purity filters are critical precision purification equipment in semiconductor, electronic chemical and high-purity reagent processes. They are used mainly for particle interception, impurity removal and process purification of materials.
Through research into chemical processes, Jestar calculates parameters such as temperature, pressure, flow rate and concentration of the high-purity electronic materials and chemicals being conveyed, optimising equipment piping design and component selection. Combined with years of process application and project experience, this has been validated through repeated practice, enabling the equipment to handle complex fluid systems. The equipment is machined from premium stainless steel with strictly controlled material impurity content, suited to long-term operating conditions with highly corrosive, highly reactive chemical media.
This high-purity chemical filter features a sanitary all-stainless-steel body with excellent corrosion resistance, suitable for filtering electronic-grade solvents and various other high-purity electronic chemicals. A pressure gauge on top monitors operating status in real time, while the quick-open clamp structure and side-mounted handle make filter element replacement and chamber cleaning convenient and efficient. It precisely intercepts fine particulate impurities to safeguard fluid cleanliness, fully meeting the high-cleanliness production requirements of the semiconductor industry.
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