Patent ID: 8749035

Claim:
A lead carrier for manufacture of semiconductor packages, comprising in combination: at least one die attach pad formed of electrically conductive material; said die attach pad having a top side opposite a bottom side with edges between said top side and said bottom side; at least one terminal pad formed of electrically conductive material and spaced from said die attach pad; said terminal pad having an upper side opposite a lower side, with edges between said upper side and said lower side; at least one of said die attach pad and said plurality of terminal pads being a multi-material pad formed of at least two different materials including a first material in a lower layer and a second material in a body portion above and adjacent said lower layer; wherein said body portion of said at least one multi-material pad is formed of a sintered electrically conductive material; wherein a plurality of package sites, each with at least one of said die attach pads and at least one of said terminal pads are located upon a common flexible stainless steel support member having a melting point higher than a sintering temperature of said electrically conductive material forming said body portion of said at least one multi-material pad; and wherein said pads are electrically isolated from each other, other than through said support member.