TRANSMISSION CABLE AND PROCESS FOR PRODUCING SAME

摘要

A plurality of signal lines 2 are formed on one side of an insulating layer 1 and ground lines 3 are formed between the signal lines 2. The ground lines 3 are electrically connected with a shield layer 4 formed on a back surface of the insulating layer 1 through metal bumps 5 formed and embedded in the insulating layer 1. Insulating layers 1 and 6 and shield layers 4 and 7 may be formed on opposite sides sandwiching the signal lines 2 and the ground lines 3. In this case, the ground lines 3 are electrically connected with the shield layers 4 and 7, respectively, through metal bumps 5 and 8 on both sides thereof. Consequently, a highly reliable transmission cable capable of high rate transfer and large capacity transfer can be provided.