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 1.34mil thick (0.0341mm, 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). Provides ultraviolet blocking and fluorescence when using automated optical inspection (AOI).

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 172 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 550 555 576 585 152 x 152 mm 304 x 304 mm 609 x 914 mm 914 x 1219 mm 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 587 589 591 596 101 x 152 mm 152 x 228 mm 304 x 304 mm 914 x 1219 mm 4" x 6" 6" x 9" 12" x 12" 36" x 48" FR4 1/64" (0.40mm), single sided 597 152 x 228 mm 6" x 9" FR4 1/64" (0.40mm), double sided 598 152 x 228 mm 6" x 9"