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Photoresist Monomer VPBO
| Photoresist Monomer | VPBO | 95418-58-9 |  |
Photoresist monomer VPBO, CAS number 95418-58-9, is a specific compound used in photoresist formulations. This monomer is known for its role in enhancing the performance characteristics of photoresist materials, particularly resolution, sensitivity and etch resistance.
Chemical Information:
Chemical Name: 4-Vinylphenyl-4-benzoyloxybenzoate
CAS Number: 95418-58-9
Molecular formula: C22H18O3
Molecular Weight: 330.38 g/mol
01
7 Jan 2019
Features and Benefits
High Resolution: VPBO monomer helps form photoresists that enable high-resolution patterning, which is critical for advanced semiconductor manufacturing and other microfabrication processes.
Enhanced Sensitivity: The monomer increases the sensitivity of the photoresist to exposure, allowing for more efficient pattern transfer and reduced exposure time.
Thermal Stability: VPBO-based photoresists exhibit good thermal stability, which is very important for processes involving high-temperature steps.
Chemical Resistance: The monomer enhances the chemical resistance of the photoresist, making it more durable during development and etching processes.
App
Semiconductor Manufacturing: For the production of integrated circuits that require high precision and fine feature sizes.
Micro-Electro-Mechanical Systems (MEMS): Facilitates the creation of high-precision micro-mechanical components.
Advanced Lithography: Suitable for next-generation lithography methods, including extreme ultraviolet (EUV) lithography.
Handling and Security
Storage: VPBO monomer should be stored in a cool, dry place, away from direct sunlight and fire sources.
HANDLING: Appropriate protective equipment such as gloves and safety glasses should be used when handling monomers to avoid skin and eye contact.
Disposal: Waste materials should be disposed of in accordance with local, regional and national regulations.
In conclusion
Photoresist monomer VPBO (CAS 95418-58-9) is an important ingredient in high-performance photoresist formulations. Its properties make it suitable for applications requiring high resolution, sensitivity and durability, particularly in semiconductor manufacturing and micromachining. As technology advances, specialized monomers like VPBO play an increasingly important role in pushing the boundaries of what is possible in lithography and related processes.
What is Photoresist?
Photoresist is a light-sensitive material used in photolithography and other imaging techniques to create patterned coatings on surfaces. This material is critical to the manufacturing of semiconductor devices, printed circuit boards (PCBs), and microelectromechanical systems (MEMS). The process involves transferring a pattern from a photomask to a photoresist-coated substrate, which can then be etched or otherwise processed to create the desired microstructure.
Key components of photoresist
Polymer base: Provides the structural matrix and determines the mechanical properties of the photoresist.
Photosensitive Compound (PAC): Reacts to light, causing solubility to change.
Solvent: Used to dissolve polymer and PAC so that the photoresist can form a thin film.
Types of photoresist
Positive photoresist
Mechanism: When exposed to light, the exposed areas of the photoresist become more soluble in the developer.
Application: Exposed areas are removed during development, leaving a pattern that matches the photomask. it can for touch screen borders, color filter and black matrix
Negative photoresist
Mechanism: When exposed to light, the solubility of the exposed areas of the photoresist in the developer decreases.
Application: The unexposed areas are removed during development, leaving the pattern opposite to the photomask.
Photolithography process
Coating: Use techniques such as spin coating to apply a uniform layer of photoresist on the substrate.
Soft Bake: Bake the coated substrate to remove excess solvent and improve adhesion.
Exposure: Expose the photoresist through the photomask and transfer the pattern to the photoresist.
Post Exposure Bake (PEB): This is sometimes performed to enhance the chemical reactions initiated during exposure.
Develop: Immerse the substrate in the developer to remove exposed or unexposed areas depending on whether you are using positive or negative photoresist.
Hard Bake: Final bake to harden remaining photoresist and improve its resistance to subsequent processing steps.
App
Semiconductor Manufacturing: Creating complex patterns for integrated circuits.
Printed Circuit Board (PCB): Defines the conductive path.
Micro-Electro-Mechanical Systems (MEMS): Manufacture of micro-mechanical components.
Optoelectronics: Patterned components of optical devices.
Advances in photoresist technology
Extreme Ultraviolet (EUV) Resist: Developed specifically for next-generation semiconductor manufacturing with smaller feature sizes.
Eco-Friendly Resist: Formulated to reduce the environmental impact of photolithography processes.
Multilayer resist: used to achieve high aspect ratios and complex 3D structures.
In summary, photoresist is an essential material in modern micromachining, enabling the production of increasingly smaller and more complex electronic devices. Advances in photoresist technology continue to drive innovation in various high-tech industries.
Photo resists can for touch screen borders, color filter and black matrix.
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