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Material Type	Glass Transition	Dielectric Constant
FR4 Standard Multifunctional	135 C	3.9 - 4.4
FR4 High Tg	170 C	3.9 - 4.4
Nelco 4000-11	175 C	3.8 - 4.1
Allied Signal FR408	180 C	3.7 - 3.8
BT Epoxy	180 C	3.6 - 4.1
Getek	180 C	3.9 - 4.1
Isola IS410	180 C	3.9 - 4.6
Polyclad FR-370HR	180 C	4.4 - 4.7
ITEQ IT-180TC	180 C	4.6
Nelco 4000-13	200 C	3.8 - 3.9
Polyimide (Rigid and Flex)	260 C	4.0 - 4.6
Rogers 4003	280 C	3.48
Rogers 4350	280 C	3.48
Other - Taconic, Arlon, Speedboard, Ceramic
Mixed material constructions are available

Surface Finishes
Hot Air Solder Level
Electroless Nickel / Immersion Gold
Immersion Tin
OSP's
Immersion Silver
Carbon Ink
Selective Hard Gold
Electrolytic Hard Gold
Electrolytic Soft Gold
Peelable Solder Mask

Direct Immersion Gold on Copper

Lead Free Hot Air Level

Via Fill

Conductive:

DuPont CB100

Non-Conductive:

Hysol 1C

SAN-EI PHP900IR-10F

Peters PP2795