Soft substrate materials

Updated June 27, 2010

Click here to go to our main page on materials for microwaves

Attention substrate material suppliers: don't send us info on any of your substrates unless you want to sponsor a page on this web site! We're cheap! Roger that, Rogers Corp!

Attention everyone else: we haven't updated this page in a while, so if you want the latest info on a specific material, contact the supplier. If you have any info on generic materials, please send it in!

Soft substrates are used in applications where packaged parts are soldered to the board. In some applications wirebonding can be done to soft substrates.

Manufacturer and material	Symbol or formula	Relative dielectric constant	Tolerance on dielectric constant +/-	Diss-ipation factor tan	Temp. coefficient of (ppm/C)	Mass density (gr/cc)	Specific heat (J/g/°C)	Thermal conduc- tivity (W/m°C)	Coefficient of thermal expansion PPM/°C x/y/z
Bakelite		4.8
Rogers Duroid 5870	PTFE/ Random glass	2.33	0.02	0,0012	-115	2.2	0.96	0.26	22/28/173
Rogers Duroid 5880	PTFE/ Random glass	2.2	0.02	0.0012	-129	2.2	0.96	0.26	31/48/237
Rogers Duroid 6002	PTFE/ Random glass	2.94	0.04	0.0012	0	2.1	0.93	0.44	16/16/24
Rogers Duroid 6006	PTFE/ Random glass	6	0.15	0.0027	-350	2.7	0.97	0.48	38/42/24
RogersDuroid 6010	PTFE/ Random glass	10.2-10.8	0.25	0.0023	-390	2.9	1	0.41	24/24/24
FR-4	glass/ epoxy	4.8		0.022				0.16
Polyethylene		2.25
Polyflon CuFlon	PTFE	2.1		0.00045					12.9
Polyflon PolyGuide	polyolefin	2.32		0.0005					108
Polyflon Norclad	thermoplastic	2.55		0.0011					53
Polyflon Clad Ultem	thermoplastic	3.05		0.003		1.27			56
PTFE	PTFE	2.1		0.0002		2.1	0.96	0.2
Rexolite No. 1422		2.55
Rogers R/flex 3700	Thermally stable thermoplastic	2.0		0.002					8
Rogers RO3003	PTFE ceramic	3	0.04	0.0013	13	2.1	0.93	0.5	17/17/24
Rogers RO3006	PTFE ceramic	6.15	0.15	0.0025	-169	2.6	0.93	0.61	17/17/24
Rogers RO3010	PTFE ceramic	10.2	0.3	0.0035	-295	3	0.93	0.66	17/17/24
Rogers RO3203	PTFE ceramic	3.02
Rogers RO3210	PTFE ceramic	10.2
Rogers RO4003	Thermoset plastic ceramic glass	3.38	0.05	0.0027	40	1.79		0.64	11/14/46
Rogers RO4350B	Thermoset plastic ceramic glass	3.48	0.05	0.004	50	1.86		0.62	14/16/50
Rogers RO4403	Thermoset plastic ceramic glass	3.17
Teflon		2.1		0.0001		2.13-2.22
Rogers TMM 3	ceramic/ thermos	3.27	0.032	0.002	37	1.78	0.87	0.7	15/15/23
Rogers TMM 4	ceramic/ thermoset plastic	4.5	0.045	0.002	0	2.07	0.83	0.7	16/16/21
Rogers TMM 6	ceramic/ thermoset	6	0.08	0.0023	-11	2.37	0.78	0.72	18/18/26
Rogers TMM 10	ceramic/ thermoset	9.2	0.23	0.0022	-38	2.77	0.74	0.76	21/21/20
Rogers TMM 10i	ceramic/ thermoset	9.8	0.245	0.002	-43	2.77	0.72	0.76	19/19/20
Ultralam 2000	glass reinforced	2.24-2.6	-.04	0.0019	-100				9.5/9.5/120

You are visitor number 10825 to this page.

All content copyright P-N Designs, Inc.