| abstract |
The subject of the present invention is to achieve further reduction in transmission loss of a flexible metal-clad laminate. The invention of the present application can solve the above problems by using a flexible metal clad laminate, the flexible metal clad laminate is characterized in that it has a microstrip line structure, and the flexible metal clad laminate at least sequentially has a signal line (3) / a first poly For the imide layer (2)/ground layer (1), the thickness of the first polyimide layer (2) is 75 to 200 μm, and the dielectric loss at 10 GHz is 0.008 or less. |