Description

Di(4-T-Butylphenyl)Iodonium Camphorsulfonate is a highly effective photoacid generator (PAG) used in advanced photoresist formulations. This compound is critical for enabling high-resolution patterning in the manufacturing of semiconductors and printed circuit boards. It is primarily utilized by electronics and photopolymer industries for applications requiring precise control over acid generation upon exposure to light.

Application

• Semiconductor Photolithography: A key component in chemically amplified resists (CARs) for deep-UV (DUV) and other advanced lithography processes.
• Printed Circuit Board (PCB) Fabrication: Used in photoimageable solder masks and dielectric layers to create fine circuit patterns.
• Advanced Packaging: Enables patterning for fan-out wafer-level packaging (FOWLP) and through-silicon vias (TSVs).
• Optical Fiber Coatings: Facilitates the UV-curing of protective and functional coatings on glass fibers.
• Holographic Data Storage: Acts as a photoinitiator in polymer systems for recording holographic gratings.
• 3D Printing (Stereolithography): Serves as a cationic photoinitiator for the rapid prototyping of high-performance polymer parts.
• Micro-electromechanical Systems (MEMS): Used in the photolithographic steps for creating microscopic mechanical devices.
• Research & Development: Employed in academic and industrial labs for developing new photopolymerizable materials and processes.

Basic Information

Product Name	Di(4-T-Butylphenyl)Iodonium Camphorsulfonate
CAS No.	193345-23-2
Molecular Formula	C29H39IO4S
Molecular Weight	610.59 g/mol
Synonyms	Bis(4-tert-butylphenyl)iodonium camphorsulfonate; Di(4-tert-butylphenyl)iodonium 10-camphorsulfonate; (4-(tert-Butyl)phenyl)(iodo)(4-(tert-butyl)phenyl)-λ3-iodaneyl Camphorsulfonate; Photoacid Generator PAG 203; Iodonium, bis(4-(1,1-dimethylethyl)phenyl)-, (7,7-dimethyl-2-oxobicyclo[2.2.1]hept-1-yl)methanesulfonate; DTBPI-CS; tert-Butyliodonium Camphorsulfonate
EINECS	Contact for details

Quality Control

Our Di(4-T-Butylphenyl)Iodonium Camphorsulfonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for sensitive electronic applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, impurity profile, and residual solvent content. We adhere to industry best practices and can provide material tailored to meet specific customer and application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and strictly light-sensitive (protect from all light exposure). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to minimize moisture uptake and decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	185 - 195 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.