EXHIBIT 21 SUBSIDIARIES OF THE COMPANY (1) Jurisdiction of Name Incorporation - ---------------------------------- ------------------- Kulicke and Soffa AG Switzerland Kulicke & Soffa (Asia) Limited Hong Kong Kulicke and Soffa (Japan) Ltd. Japan and Delaware Kulicke and Soffa (Israel) Ltd. Israel Kulicke and Soffa Investments, Inc. Delaware Micro-Swiss Limited Israel Kulicke and Soffa Leasing, Inc. Delaware Kulicke & Soffa Singapore, Inc. Delaware Kulicke and Soffa Pte Singapore Kulicke & Soffa Export, Inc. Barbados AFWH Sub, Inc. (Formerly Circle "S" Industries, Inc.) Alabama American Fine Wire Corporation Alabama American Fine Wire, Limited Cayman Islands Dr. Muller Feindraht AG Switzerland Semitec (2) California Flip Chip Technologies, LLC (2) Delaware (1) Certain subsidiaries are omitted; however, such subsidiaries, even if combined into one subsidiary, would not constitute a "significant subsidiary" within the meaning of Regulation S-X. (2) The shares of Semitec and the Company's equity interest in Flip Chip Technologies, LLC and Advanced Polymer Solutions, LLC are held by Kulicke and Soffa Holdings, Inc., a Delaware corporation.