We offer 1/16", 1/32" and 1/64" FR4 laminate with 1 ounce copper per square foot. This flame retardant laminate is translucent in color and made of continuous woven glass cloth impregnated with epoxy resin. The copper on 1 ounce boards is 1.34 mil thick (0.0341 mm, 34.1 microns). The boards are made of FR4 which is a flame retardant version of G-10 material.

Developed specifically for the circuit processing industries' requirements. Complies with UL #E214381 (select boards comply to UL #E213990).

Our presensitized boards provide high resolution and excellent fine line control. They are ideal for prototypes, small production runs, and student training.

Easy Cutting!! We also offer a large thin (12" x 18" x 1/32 inch) cat#675 paper phenolic presensitized board, perfect for cutting into smaller boards with no special equipment - perfect for the classroom.

Specifications

Property Treatment Condition Unit FR-4 Index Peel Strength (As received) A Ib/in >= 8.0 (After thermal stress) A Ib/in >= 8.0 Surface Resistivity at elevated temperature E-24/125 M Ohm >= 103 Volume Resistivity E-24/125 M Ohm · cm >= 103 Water Absorption (0.1-0.77MM) E-1/105+des+D-24/23 % <=0.8 (0.78-3.20MM) E-1/105+des+D-24/23 % <=0.35 Flexural Strength (Lengthwise) A Mpa >=410 (Crosswise) A Mpa <=340 Dielectric Breakdown Parallel to laminate D-48/50+D-0.5/23 KV >=40 Dielectric Constant Permittivity at 1MHZ C-40/23/50   <=5.4 Bow and Twist (Double sided) A % <=1.0 Flammability Rating A&E-1/105+des   UL 94 V-0 Thermal stress(288°C, 20 seconds) Unetched, A No defect   After etched A No defect Pressure vessel thermal stress A   No defect Dimensional stability E-4/105+des+E-2/150 Um/em +/-5.0 TG DSC °C >= 130°C TD ( °C/TGA 5% wt loss) °C 300-310°C

Available Sizes

Cat.No. Plain (metric) (approx. in imperial) FR4 1/16" (1.60mm), single sided 503 506 509 512 515 521 575 580 76 x 127 mm 101 x 152 mm 152 x 152 mm 152 x 228 mm 203 x 254 mm 304 x 304 mm 609 x 914 mm 914 x 1219 mm 3" x 5" 4" x 6" 6" x 6" 6" x 9" 8" x 10" 12" x 12" 24" x 36" 36" x 48" FR4 1/16" (1.60mm), double sided 540 550 555 576 585 76 x 127 mm 152 x 152 mm 304 x 304 mm 609 x 914 mm 914 x 1219 mm 3" x 5" 6" x 6" 12" x 12" 24" x 36" 36" x 48" FR4 1/32" (0.80mm), single sided 586 588 590 101 x 152 mm 152 x 228 mm 304 x 304 mm 4" x 6" 6" x 9" 12" x 12" FR4 1/32" (0.80mm), double sided 587 589 591 101 x 152 mm 152 x 228 mm 304 x 304 mm 4" x 6" 6" x 9" 12" x 12"