Scott, You could reference IPC-6015 or IPC-6016. These address the cleanliness of the whole board, purity of the metals (by reference to other specs), and plating thickness. Minimum thickness broken down by class and wire bonding process. But, I think what the others have said still applies. Glenn -----Original Message----- From: Buscomb, Scott [mailto:[log in to unmask]] Sent: Monday, July 02, 2001 7:36 AM To: [log in to unmask] Subject: [TN] Specs for Wire Bond Pads I am looking for information on specifying a gold plated surface for wire bond pads, specifically plating, surface roughness and contamination. Does a standard industry spec exist? Is there an authoritative text on the subject? Thanks in advance. Scott Buscomb ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------