IEC 60191-6-3 pdf download.MECHANICAL STANDARDIZATION OF SEMICONDUCTOR DEVICES 1 Scope This part of IEC 60191 stipulates a method for quad flat packs (QFP) measuring dimensions which are classified into Form E. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 60191. For dated references, subsequent amendments to,...