Riston® Dry films

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DuPont™ Riston® dry film photoresist revolutionized the way PCBs were fabricated when invented by DuPont 40 years ago. The original dry film photoresist is the industry standard for high yield, productivity, and ease of use in all imaging applications, including the latest industry demands for finer features, higher quality and lower cost in all types of plating and etching applications as well as LDI exposure.

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Riston® ES 100 series

High productive resist for rapid exposure, development and stripping and fine line innerlayer performance

Name	Etching environment	Thickness µm
ES 102	Acid etching	30
ES 140	Acid etching and Cu, Sn plating	38
ES 150	Acid etching and Cu, Sn plating	50

Riston® EM 930 EtchMaster series

High productive resist for rapid exposure, development and stripping and fine line innerlayer performance

Name	Etching environment	Thickness µm	PDF
EM 930	Acid etch	30

Riston® PM 200 Plate Master series

Excellent tenting and plating resist with increased flexibility and productivity

Name	Etching environment	Thickness µm
PM 240	Acid etching, Plating	38
PM 250	Acid etching, Plating	50
PM 275	Plating (Cu, Sn, SnPb)	75

Riston® MM 100 MultiMaster series

General purpose resist with strong performance in high pH alkaline etching and aggressive gold plating environment simplifies the manufacturing operation by eliminating the need for different films in your production line

Name	Etching environment	Thickness µm	PDF
MM 140	High pH alkaline etching and aggressive gold plating	38
MM 150	High pH alkaline etching and aggressive gold plating	50

Riston® MM 700 MultiMaster series

Robust resist with wide developing process window. Suitable for both conventional and LDI exposure (355nm)

Name		Thickness µm	PDF
MM 740	Acid and alkaline etching and Plating (inc Gold)	40

Riston® LDI 7000/7200 Laser series

Very high photospeed resists for laser direct imaging

Name	Etching environment	Thickness µm
LDI 7030	Acid and alkaline etching, plating	30
LDI 7040	Acid and alkaline etching, plating	38
LDI 7250	Acid and alkaline etching, plating	50
LDI 7262	Acid and alkaline etching, plating	62
LDI 7275	Acid and alkaline etching, plating	75
LDI 7299	Acid and alkaline etching, plating	100

Riston® FX 900 Special series

Designed to produce the new, high resolution innerlayers demanded for the leading edge PCBs. Excellent flow during lamination

Name	Etching environment	Thickness µm
FX 920	Acid etch	20
FX 930	Acid and alkaline etch	30
FX 940	Acid etch, Plating Cu, SnPb	40
FX 950	Acid etch, Plating Cu, SnPb	50

Riston® GM 100 Gold Master series

Thick plating film for selective Ni/Au plating and chemical milling

Name	Etching environment	Thickness µm	PDF
GM 130	Vacuum Lamination, Ni/Au Plating and Chemical Milling	75
GM 140	Vacuum Lamination, Ni/Au Plating and Chemical Milling	100

Riston® FX 250 Special series

Speciality product tough enough to stand up to harsh selective metalization processes, such as electroless nickel immersion gold (ENIG)

Name	Etching environment	Thickness µm	PDF
FX 250	ENIG and electrolytic Ni/Au plating	50

Riston® DI3000 Dry Film Photoresist for Multi-layered Boards

Next Generation T/E and P/E direct imaging photoresist. Excellent tenting, chemical resistance and wind operation window enable higher yield.

Features:

Superior tenting capability
Excellent chemical resistance with no ragged line
Wide operation window by fine line capability
Capable with i-line & h-line multiple wavelength DI equipment
Low sludge/foaming for easy maintenance

Name	Etching environment	Thickness µm
DI3030	High speed resist, plating Cu, SnPb, Ni/Au, Acid and alkaline etching, chemical milling	30
DI3038	High speed resist, plating Cu, SnPb, Ni/Au, Acid and alkaline etching, chemical milling	38
DI3050	High speed resist, plating Cu, SnPb, Ni/Au, Acid and alkaline etching, chemical milling	50
DI3062	High speed resist, plating Cu, SnPb, Ni/Au, Acid and alkaline etching, chemical milling	62
DI3075	High speed resist, plating Cu, SnPb, Ni/Au, Acid and alkaline etching, chemical milling	75
DI3099	High speed resist, plating Cu, SnPb, Ni/Au, Acid and alkaline etching, chemical milling	100