A Ferritic stainless steel, non Ferritic stainless steel or carbon steel based lead frame and method for producing same is provided. The lead frame is preferably used for Tantalum/Niobium capacitors but could possibly be applicable to other integrated circuits with the same operating parameters. Any reference to Tantalum capacitors in this application applies equally to Niobium capacitors unless otherwise noted. The lead frame is prepared by choosing one of Ferritic stainless steel, non Ferritic stainless steel or carbon steel as a base metal and rolling it to a final required thickness. The base metal is then preferably plated with a nickel strike or other conventional barrier layer and then with final outer plating layers(s). The exact thickness and choice of layering varies and can be tailored to meet the requirements of each lead attach process.
申请公布号
US2012075828(A1)
申请公布日期
2012.03.29
申请号
US201113245079
申请日期
2011.09.26
申请人
SEMCER, SR. FRANK J.;SANTORO STEVEN G.;MCCLINTOCK JAMES;JANKOSKI, JR. FRANK J.
发明人
SEMCER, SR. FRANK J.;SANTORO STEVEN G.;MCCLINTOCK JAMES;JANKOSKI, JR. FRANK J.