PPG and Polyether Derivatives in Semiconductor Processes

Definition

PPG-related semiconductor materials are a family of chemically distinct polyethers and glycol ethers whose process role depends on molecular architecture, functional groups, purity grade, formulation, and whether the material is removed or cured into the product.

Process position

05 · BEOL 07 · Assembly & packaging

Inputs

Specified chemical family and electronic grade
Target process formulation
Impurity and packaging specification
Application-specific qualification plan

Outputs

Qualified solvent, bath additive, or resin ingredient
Certificate-of-analysis and change-control record
Process and reliability correlation

How it works

01Identify the exact chemical family
02Define formulation function and exposure path
03Specify metals, particles, water, ions, molecular distribution, and extractables as relevant
04Qualify process performance
05Verify removal or cured-network behavior
06Lock supplier, plant, packaging, filtration, and change control

Shared feedstock does not mean shared qualification

A PPG homopolymer, an EO/PO block copolymer, a propylene-glycol ether solvent, and an amine-terminated polyether have different physical properties and process functions. They should not be merged into one approved-material category.

Method basis[1][2]

PPG polymers, EO/PO block copolymers, propylene-glycol ethers, and functional polyethers are distinct material families despite related propylene-oxide chemistry.

Two publicly evidenced use families

Polyether suppressors have been studied in copper electrodeposition, while electronic-grade propylene-glycol ethers are marketed for photoresist, thinner, and edge-bead-removal applications. Packaging uses require separate formulation-level evidence because reactive ingredients become part of a cured network.

Source-supported[2]

PEG–PPG copolymers have been studied as suppressors in copper electrodeposition.

Source-supported[1]

Dow markets an electronic-grade propylene-glycol ether for semiconductor photoresist, thinner, and edge-bead-removal uses.

Boundary: A supplier product page does not establish qualification at a named fab or in a named product.

Sources

Citations support the tagged claims above. Access dates record when Maha Strategies last checked the public source.

[1]DOWANOL ELECPURE PM 1 Glycol Ether · Dow · accessed 2026-08-13
[2]Degradation of poly(ethylene glycol–propylene glycol) copolymer and its influences on copper electrodeposition · Journal of Electroanalytical Chemistry · 2014 · accessed 2026-08-13