EXHIBIT 21 SUBSIDIARIES OF THE COMPANY Jurisdiction of Name Incorporation Kulicke and Soffa AG Switzerland Kulicke and Soffa (Asia) Ltd. Hong Kong Kulicke and Soffa (Japan) Ltd. Japan and Delaware Kulicke and Soffa (Israel) Ltd. Israel Kulicke and Soffa Investments, Inc. Delaware Micro Swiss Ltd. Israel Kulicke and Soffa Leasing, Inc. Delaware Kulicke & Soffa Singapore Inc. Delaware Kulicke & Soffa Export Inc. Barbados Circle "S" Industries, Inc. Alabama American Fine Wire Corporation Alabama American Fine Wire Ltd. Cayman Islands Mueller Feindraht, AG Switzerland