| |
Soft
substrate materials
Updated
June 27, 2010
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suppliers: don't send us info on any of your substrates unless you
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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 |
|
|
