Reinforced material made of glass fiber, respectively impregnate in resin to make core material, covered with copper foil after high temperature and hot pressing. It is the most used product of printed circuit board, referred to as FR-4. This type of material has single and double sided copper clad laminates.
| Type
類型 |
Tg（℃） | Td（℃） | CTE（%） | Dk/Df (@1Ghz) | Feature
特點 |
| FR-4 | ≥130 | 305 | 4.3 | 4.3/0.018 | ● UV阻擋 UV Blocking
● CTI 175V |
| ≥130 | 314 | 3.6 | 4.6/0.015 | ● UV阻擋 UV Blocking
● CTI 600V |
|
| ≥130 | 313 | 4.0 | 4.4/0.014 | ● UV阻擋 UV Blocking
● 较低 CTE Low CTE ● CTI 175V |
| Type
類型 |
Tg（℃） | Td（℃） | CTE（%） | Dk/Df
(@1Ghz) |
Feature
特點 |
| FR-4 | ≥140 | 350 | 3.3 | 4.6/0.013 | ● CTI 175V
● 無鹵素 Halogen-free |
| ≥150 | 365 | 2.8 | 4.6/0.013 | ● Anti-CAF
● CTI 175V ● 無鹵素 Halogen-free |
|
| ≥150 | 365 | 2.7 | 4.6/0.013 | ● Anti-CAF
● CTI 600V ● 無鹵素 Halogen-free |
|
| ≥150 | 376 | 2.6 | 4.6/0.013 | ● Anti-CAF
● HDI recommended ● 無鹵素 Halogen-free |
|
| ≥170 | 385 | 2.2 | 4.6/0.013 | ● Anti-CAF
● 無鹵素 Halogen-free |