Low transmission loss flexible multi-layer circuit board materials | R-BM17

Low transmission loss flexible multi-layer circuit board materials R-BM17

 

  1. Thinner replacement of coaxial cable
  2. Better handling at fabrication
  3. Faster & lower loss for FPC cable

Circuit Board Materials

  • Part Number

Bonding sheet R-BM17

Core R-F705S

Halogen-free
  • Application
  • Detailed use
Mobile
・Mobile
Antenna module for mobile product (Smartphone, tablet PC) etc.

Properties

For thinner structure
replacing coaxial cable
with Multi-layer LCP PCB
For bonding sheet requiring
better handling & lamination process
For FPC cable requiring
high speed & low loss

Low transmission loss flexible multi-layer circuit board materials 3layers (example)

Low transmission loss flexible multi-layer circuit board materials 3layers (example)

Transmission loss

Transmission loss

Better handling at fabrication

  Panasonic Low Dk bonding sheet
(R-BM17)
Other company LCP bonding sheet
Lamination temperature (180-200°C)
180-200°C

310°C
Keeping temperature (20°C)
Electric property (Transmission loss)

General properties

Item Test method Condition Unit       R-F705S + R-BM17      
Solder heat resistance Between LCP and bonding sheet 60sec. Float
limited temperature
A °C 270 Pass
C96/40/90 260 Pass
Between copper and bonding sheet A 270 Pass
C96/40/90 260 Pass
Dielectric constant (Dk)td> 10GHz Cavity resonator A 2.85
C96/40/90 2.84
Dissipation factor (Df) A 0.0021
C96/40/90 0.0021
Peel strength Between LCP and bonding sheet IPC TM-650 90° N/mm 1.08
Between copper and bonding sheet 0.73
MIT folding endurance test JIS C6471 R0.38/135°/
175cpm/500gf
Number 55
Weight load flexibility Circuit outside Internal method A Number 19
Circuit inside 11
Flammability Combination with LCP Internal method
(Equivalent to UL)
A 94VTM-0

Our Halogen-free materials are based on JPCA-ES-01-2003 standard and others.
Contain; Chlorine:≤0.09wt%(900ppm), Bromine:≤0.09wt%(900ppm),
Chlorine+Bromine:≤0.15wt%(1500ppm)

The above data are typical values and not guaranteed values.

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