NAME
Physics::Etch::Etchant - the chemistry used by an etch process
SYNOPSIS
use Physics::Etch::Etchant;
my $fecl3 = Physics::Etch::Etchant->new(
name => 'FeCl3',
type => 'wet',
composition => 'Ferric chloride, ~40 Baume',
mechanism => 'chemical',
);
my $sf6 = Physics::Etch::Etchant->new(
name => 'SF6/O2',
type => 'dry',
composition => 'SF6 45 sccm / O2 5 sccm',
mechanism => 'ion-assisted',
);
DESCRIPTION
Describes an etchant. Wet etchants are liquid chemistries; dry etchants are plasma feed-gas mixtures. mechanism records whether removal is dominated by chemical reaction, physical sputtering, or synergistic ion-assisted etching.