1. Wire dia selection is made based on current carrying capacity(thick wire can carry more current for burn-out) , bond strength(mold pressure and transfer speed) and wire length. e.g. 1.25 mil wire is more often used where wire length is more than 120 mils(to control wire sweep or sag as case may be) 2. 1-3% wire is more stiff as compared to 2-4%. 2-4% will have more sagging for long wires if loop-back(reverse motion) is not used. > ---------- > From: Mike Coleman[SMTP:[log in to unmask]] > Sent: April 2, 1998 9:45 AM > To: [log in to unmask] > Subject: [TN] Wire bonding > > I'm looking for information on the advantages/disadvantages of two > things: > 1. 1 mil gold wire and 1.25 mil gold wire > 2. 1-3% elongation or 2-4% elongation > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV > 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with > following text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC web site (http://jefry.ipc.org/forum.htm) for > additional information. > For the technical support contact Dmitriy Sklyar at [log in to unmask] or > 847-509-9700 ext.311 > ################################################################ > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################