Materials

Rigid laminate/prepreg resin systems:

FR4, std. & improved BT-EPOXY Glass/Polyimide Thermount®/Polyimide

GF GM GI BI

Microwave materials:

RO3003, RO3006, RO3010, RO3203, RO3210, R4003, RO4350, RT6002,RT6006, RT6010LM, RT5870, RT5880, TMM3, TMM4, TMM6, TMM10 DiClad 527, D522, D870, D880, CuClad 217, C233, C250, AD300, AR320, AR350, AR450, AR600, AR1000, CLTE, 25N, 25FR

Flexible laminate systems:

With adhesive:          Butyral based          Acrylic based          Epoxy based Adhesiveless

GPV Printca stocks (12),17,35,70 µ copper foil, all foil is HTE type. ( ) Only used with buried / blind vias. To have superior surface quality, CAC foil is used.

Copper Resistivity

With designs of finer lines, distributed resistance of copper is becoming increasingly important. The formula for calculating resistivity in copper traces is given by the following equation:

       
         R=(0.679 X 10^-6 ohm/inch) / (width X thickness inches)

Example: In fine-line designs, using 0.5 oz. Copper, a .005 trace, 5 inches long, the resistivity will be:

        ( (.679 X 10^-6) / (5 X 0.7 X 106) ) X 5 = 0.97 Ohm

STANDARD STOCK MATERIALS AT GPV PRINTCA A/S

Copper thickness codes for all laminates: H = Half ounce which equals 17µ 1 = One ounce which equals 35µ 2 = Two ounce which equals 70µ

FR4 Double sided (Rigid laminate)

0,80mm H-H 1,55mm H-H 1,55mm 1-1 1,55mm 2-2 2,00mm 1-1 2,00mm H-H 2,40mm H-H 2,40mm 1-1 3,20mm 1-1

FR4 Multilayer (Thin laminate)

0,002 H-H 0,005 H-1 0,005 1-1 0,008 1-1 0,008 1-2 0,008 2-2 0,010 1-1 0,014 H-1 0,014 1-1 0,014 2-1 0,014 2-2 0,018 H-1 0,018 1-1 0,022 H-1 0,022 1-1 0,022 1-2 0,022 2-2 0,028 1-1 0,028 2-2 0,028 H-1 0,036 1-1

Polyimide laminate

0,005 H-1 0,005 1-1 0,008 2-1 0,008 2-2 0,008 1-1 0,010 1-2 0,010 2-2 0,022 1-2 0,022 2-2

Thermount® laminate

0.0037 H-H 0.0037 H-1 0.0037 1-1 0.0076 H-H 0.0076 H-1 0.0076 1-1 0.0140 H-H 0.0140 H-1 0.0140 1-1 0.0220 H-1

Flexible laminates

Rogers product series 2000:
20FR-C-110 2 mils polyimide, 1 mil acrylic adhesive
20FR-C-210 2 mils polyimide, 2 mil acrylic adhesive

Dupont AP series:

AP8525 2 mils adhesiveless 17/17 copper
AP9121 2 mils adhesiveless 35/35 copper
AP9222 2 mils adhesiveless 70/70 copper

COPPER FOILS

17µ and 35µ (12µ and 70µ only used on laminates)

Glass/epoxy prepregs GFN

1080 thickness 0.0026"
2125 thickness 0.0040"
7628 thickness 0.0070"

Glass/polyimide prepregs GIL

1080 thickness 0.0033"
2113 thickness 0.0043"

Glass/polyimide prepregs GIJ

1080 thickness 0.0033"
2116 thickness 0.0046"

Thermount®/polyimide prepregs BI

210 thickness 0.0018"
220 thickness 0.0029"
230 thickness 0.0037"