abstract |
A copper-clad substrate having a barrier structure includes a plurality of load-bearing regions and a plurality of barrier regions, each of which is electrically connected to each of the wafers, and each of the barrier regions is formed around each of the load-bearing regions. Thereby, the barrier region of the present invention can avoid the problem of short circuit caused by contact with other signal lines after the tin sheet is formed into liquid tin in the reflow furnace. |