The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2004
Filed:
Jul. 17, 2001
Gil Perlberg, Yakov, IL;
Ziv Atsmon, Zihron-Yakov, IL;
Benjamin Sonnenreich, Haifa, IL;
Arie Bahalui, Yokneam Elite, IL;
Kulicke & Soffa Investments, Inc., Wilmington, DE (US);
Abstract
A bonding tool for bonding a fine wire to bonding pads having a very fine pitch is disclosed. The bonding tool comprises a working tip at an end thereof. The working tip includes i) a tapered section having a predetermined angle with respect to the longitudinal axis of the first cylindrical section, ii) a working face with a first annular chamfer formed at an outside portion of an end of the working tip and, iii) a second annular chamfer formed at an inside portion of the end of the working tip. The first and second annular chamfer adjacent one another and a substantially cylindrical axial passage coupled to an upper portion of the second annular chamfer. The bonding tool is formed from a material containing at least 80% ZrO by weight.