Burn-in and Test Board Laminate Data.

Following is data on typical board laminate materials for burn-in and test use.

LAMINATE MATERIALS
Type FR-4 / G-10
( 1)
FR-5 / G-11
( 2)
Addition
Polyimide

( 4)
Epoxy
Copolymer
(5)
Special
Epoxy

(6)
Teflon®
PTFE)
(3)
General Properties
General Applications Ambient Temp to 100°C Low-Cost 125°C Best to 210°C Best to 160°C Low Leakage Microwave Substrate
Water Absorption (% in 24 hrs) 0.08 - 0.20 0.11 - 0.25 0.16 - 0.40 0.11 - 0.20 0.08 0.01 - 0.02
Normal Color Whitish Green Whitish Green Reddish Brown Reddish Brown White or Natural Gray
Specific Gravity 1.80 - 1.93 1.80 - 1.90 1.80 - 1.85 1.80 1.8 (min) 2.20
Mechanical Properties
Peel Strength (lbs/in of width) 8.0 - 10.5 8.0 - 9.0 4.8 - 9.0 6.0 - 9.5 10.0 - 12.0 8.0
Flexural Strength L-W (psi x 10E3) 70 - 95 70 - 80 50 - 97 75 - 100 70 15
Izod Impact L-W (notched, ft-lbs/in) 13 - 15 11 - 12 10.3 - 13 N/A 11 N/A
Hardness (Rockwell M Scale) 110 110 120 N/A 115 Soft
Compression Strength (psi x 10E3) FW 55 - 65 65 N/A N/A N/A 4
Tensile Strength (psi x 10E3) 50 - 54 50 50 N/A N/A 4
Electrical Properties
Dielectric Constant (at 1 MHz, dry 24/23) 4.6 - 4.8 4.7 - 4.8 4.4 - 5.3 4.5 - 4.8 4.7 - 4.9 2.1 - 2.6
Dielectric Strength (volts/mil S-T) 500 - 800 500 - 800 22 kV - 60 kV 800 60 kV (min) 50 kV
Dissipation Factor (1 @ 1MHz dry 23/24) 0.019 - 0.021 0.02 0.003 - 0.02 0.002 - 0.015 0.02 0.0004 - 0.0008
Volume Resistivity (101E4‡-cm @ 23°C) 0.05 - 5.10 0.01 - 3.00 10.00 3.00 1.00 - 10.00 0.10 - 1.00
Surface Resistivity (‡/cmE2 @ 23°C) 0.01 - 0.90 0.001 - 0.04 5.00 0.30 0.50 0.01 - 3.00
Arc Resistance (seconds, dry 48/50) 75 - 120 120 127 - 180 123 100 180
Thermal Properties
Loranger Estimated Continuous Heat Resistance 100°C 125°C 210°C 160°C 125°C 210°C
Mfg’er Temp Rating - Electrical 130 - 138°C 140 - 149°C 260°C 200°C 130°C 260°C
(1)
FR-4 is the flame-retardant version of Nema G-10*
(2)
FR-5 is the flame-retardant version of Nema G-11 laminate for critical electrical applications
(3)
UL 94 VEO = 10-second flameout after source removed and no drip (i.e., socket adaptors, humidity tests)
(4)
UL 94 VEO = 10-second flameout after source removed and no drip
(5)
UL 94 VE2 = 30-second flameout after source removed with drip
(6)
UL 94 VE2 = 30-second flameout after source removed with drip

About Us


Loranger International Corporation designs and manufactures burn-in and test sockets, printed circuit boards and environmental chamber systems for the electronics manufacturing industry.

Loranger International Corporation sockets are optimized for today’s small, fine pitch electronic packages including QFN, as well as for older style packages.

Loranger International Corporation burn-in and test sockets are used worldwide in programs including defense, guidance, automotive, music, communication and space exploration.

Contact Us


Loranger International, Inc.
817 Fourth Ave.
Warren, PA 16365
303 Brokaw Road
Santa Clara, CA 95050
Phone
Asia and North America West: (408) 727-4234
Europe and North America East: (814) 723-2250
Email: sales@loranger.com
Sales Representative List: Contact Us