We also monitor Knoop hardness of the plated deposit from our soft gold bath on a monthly basis. Knoop hardness should be under 80 knoop for gold wire bonding. Kim Hadco Ca. ______________________________ Reply Separator _________________________________ Subject: Wire Bonding Author: [log in to unmask] at SMTPLINK-HADCO Date: 10/15/96 7:08 PM Advice please ! Is there a quantitative test that can be carried out on soft gold electroplate to qualify its suitability for wire bonding ? Gold thickness and purity already to customers spec. Note in this instance gold is on a nickel undercoat. Jim Douglas Kam Circuits *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************