performing a first electric flame off (EFO) on the end of the bond wire at a first setting to pre-form a free air ball (FAB) on the end of the wire, and performing a second EFO on the end of the bond wire at a second setting, after performing the first EFO, to fully form the...
An image of the free air ball disposed at a lower portion of the wire bonding tool is provided to the imager via the prism and the at least one lens.David T. BeatsonDeepak SoodNorman LucasZhijie Wang
The currently high price of gold wire has led to the development of bonding wire made from palladium-coated-copper as a lower cost alternative. Increasing the uniformity of the Pd distribution in free-air balls, formed by melting the wire end with an electric spark, is of interest as it ca...
In thermosonic wire bonding, a free air ball (FAB) created by electronic flame-off (EFO) is crucial to a reliable first bond. To reveal the mechanisms of FAB and ripple formation, the dynamic FAB formation process was monitored and analyzed with a high-s
bonding pad [′bän·diŋ ‚pad] (electronics) A metallized area on the surface of a semiconductor device, to which connections can be made. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. ...
The formation of good free air ball (FAB) in palladium coated copper wire depends on many factors including the type of protection gas used, flow rate, Electric Flame Off (EFO) current, firing time and gap between the tip of wire and EFO wand. These factors can individually or, in combin...
Chunjin Hang, Chunqing Wang, Yanhong Tian. Microstructural study of copper free air balls in thermosonic wire bonding.Microelectronic Engineering2008(85): 1815-1819 Rong An, Chunqing Wang, Yanhong Tian. Determination of the Elastic Properties of Au5Sn and AuSn from Ab Initio CalculationsJournal ...
Define Supercomputing. Supercomputing synonyms, Supercomputing pronunciation, Supercomputing translation, English dictionary definition of Supercomputing. n. A mainframe computer that is among the largest, fastest, or most powerful of those available at
See also bonding; earthing. Dictionary of Military and Associated Terms. US Department of Defense 2005. ThesaurusAntonymsRelated WordsSynonymsLegend: Switch to new thesaurus Noun 1. grounding - education or instruction in the fundamentals of a field of knowledge; "he lacks the foundation necessary ...
A ball forming device includes a first current control circuit to control discharge current arranged between a leading end of a wire and one electrode of a discharge continuing powe