- Excellent low-Dk/Df with low CTE property for the evolution of device.
- Stable signal values at high frequency and high temperature and humidity.
Circuit Board Materials
- Part Number
Low Dk glass cloth
Laminate R-G545L
Prepreg R-G540L
Normal glass cloth
Laminate R-G545E
Prepreg R-G540E
- Application
- Detailed use
・PKG
IC PKG for base station application, Module part, etc.
Properties
Dk 3.5 Df 0.003
@12GHz
@12GHz
CTE x, y-axis 10ppm/°C
CTE z-axis 22ppm/°C
CTE z-axis 22ppm/°C
Tg (DMA)
230°C
230°C
Df at Wide-frequency band
Frequency dependence by Transmission loss
TMAxy
TMAz
General properties
| Item | Test method | Condition | Unit | LEXCM GX R-G545L Low Dk glass cloth | LEXCM GX R-G545E Normal glass cloth | |
| Glass transition temp.(Tg) | DMA* | A | °C | 230 | 230 | |
| CTE x, y-axis | α1 | Internal method | A | ppm/°C | 10 | 10 |
| CTE z-axis | IPC-TM-650 2.4.24 | 22 | 22 | |||
| Dielectric constant(Dk) | 12GHz | Balanced type circular disk resonator | A | － | 3.5 | 4.0 |
| Dissipation factor(Df) | 0.003 | 0.004 | ||||
| Water absorption | IPC-TM-650 2.6.2.1 | D-24/23 | % | 0.06 | 0.06 | |
The sample thickness is 0.1mm
* Measurement in tensile mode
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.
