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Process Chemistry &
Materials Science

In-depth technical articles on electronic grade solvents, semiconductor wet process chemistry, battery materials, and HPLC analytical methods — written by process engineers for process engineers.

Featured Article

Electronic Grade Solvents12 min read

Electronic Grade IPA for Semiconductor Wafer Cleaning: G2 to G5 Specification Guide

Electronic grade IPA (isopropyl alcohol) is the single highest-volume wet chemical consumed in semiconductor manufacturing. This guide explains SEMI G2 through G5 purity tiers, critical specification parameters, and how to select the correct grade for each fab process step.

electronic grade IPASEMI C1wafer cleaningMarangoni dryingICP-MS
March 15, 2025Read Article

Key Specification

Assay (GC)≥99.9999%
Water (KF)≤5 ppm
Total Metals<0.1 ppb ea.
Particles≤5 ct/mL
SEMI C1 Tier D · ISO Class 3 Fill
All ArticlesGrade & SpecificationQuality & DocumentationProcess ApplicationsBattery ApplicationsSupply & LogisticsQualification
Photoresist & Lithography10 min

PGMEA as a Photoresist Solvent: Applications in ArF Immersion and EUV Lithography

PGMEA is the dominant primary solvent in advanced photoresist formulations for ArF immersion and EUV lithography. This article covers its physicochemical properties, why it outperforms alternatives, and the critical purity specifications required for leading-edge nodes.

PGMEAphotoresist solventEUV lithography
March 28, 2025Read
Battery & Energy Storage11 min

NMP in Lithium Battery Electrode Slurry: PVDF Binder Dissolution and Cathode Coating

N-methyl-2-pyrrolidone (NMP) is indispensable for lithium-ion battery electrode manufacturing. This technical article explains why NMP is the only practical solvent for PVDF binder dissolution, its role in NMC and LFP cathode slurry preparation, and the electronic grade purity requirements for EV gigafactory applications.

NMP batteryPVDF bindercathode slurry
April 5, 2025Read
Battery & Energy Storage10 min

Dimethyl Carbonate (DMC) in Lithium-Ion Battery Electrolytes: Properties, Grades, and EV Applications

Dimethyl carbonate (DMC) is one of the three primary co-solvents in standard LiPF₆ lithium-ion battery electrolytes. This article covers DMC physicochemical properties, EC/DMC/EMC electrolyte formulation rationale, and the ultra-pure G4/G5 grade specifications required for EV battery manufacturing.

DMC battery electrolytedimethyl carbonateLiPF6 electrolyte
April 18, 2025Read
Laboratory & Analytical9 min

HPLC Grade Acetonitrile for Pharmaceutical LC-MS Analysis: Specification and Selection Guide

Acetonitrile (ACN, MeCN) is the most widely used HPLC and LC-MS mobile phase solvent in pharmaceutical analysis. This guide covers how to choose between HPLC preparation, HPLC gradient, and LC-MS grades based on your analytical application, detector type, and required detection limits.

HPLC acetonitrileLC-MS gradeacetonitrile pharmaceutical
May 2, 2025Read
Advanced Packaging11 min

Wet Process Chemicals for Advanced Packaging: FOWLP, HBM, 2.5D Interposer, and 3D-IC

Advanced packaging — FOWLP, CoW, HBM, 2.5D interposer, and 3D-IC — has become a primary technology driver as device scaling slows. This article maps the critical wet process chemicals (PGMEA, PGME, NMP, IPA, acetone) to specific advanced packaging process steps and their purity requirements.

advanced packaging chemicalsFOWLP solventHBM packaging
May 15, 2025Read
Semiconductor Process9 min

Marangoni Drying with IPA: Achieving Watermark-Free Wafer Drying at Sub-5nm Nodes

Marangoni drying replaces conventional spin-dry to eliminate watermarks and stiction at advanced nodes. This article explains the Marangoni effect physics, why G5 IPA purity (≤5 ppm water) is essential, and how Marangoni drying is implemented in CMP post-clean and MEMS fabrication.

Marangoni dryingIPA vapor dryingwatermark-free drying
June 1, 2025Read
Standards & Compliance10 min

Understanding the SEMI C1 Standard for Electronic Grade Chemicals in Semiconductor Manufacturing

The SEMI C1 standard defines purity requirements for electronic grade chemicals used in semiconductor manufacturing. This article explains the four SEMI C1 tiers (G2–G5), required test methods, and how to read and specify SEMI-compliant chemical documentation for your fab procurement process.

SEMI C1electronic grade chemicalsSEMI standard
June 18, 2025Read
Compound Semiconductor9 min

Wet Chemical Cleaning for Compound Semiconductors: GaN, SiC, InP, and GaAs

Compound semiconductor devices — GaN power devices, SiC MOSFETs, InP HEMTs, and GaAs solar cells — have specific wet cleaning requirements that differ significantly from silicon CMOS. This article covers the critical chemical purity requirements, particularly halide control in IPA and hydrocarbon solvents, for compound semiconductor fabrication.

GaN cleaningSiC MOSFET processcompound semiconductor cleaning
July 2, 2025Read
OSAT & Backend Process8 min

Electronic Grade Acetone in Semiconductor OSAT and Back-End-of-Line Cleaning

Electronic grade acetone is the primary organic cleaning solvent in OSAT (outsourced semiconductor assembly and test) and back-end-of-line (BEOL) processes. This article covers acetone applications in die preparation, flux removal, wire bonding surface prep, and the G2–G5 grade selection criteria for different packaging technologies.

electronic grade acetoneOSAT cleaningsemiconductor backend
July 20, 2025Read

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