Hello Alex There are many : 1 The planarity (flat for devices requiring close placing tolerances) of fine pitch and for BGA's , as you mentioned 2 The applications where it is sufficient (low end of contact frequency) to avoid any selective or more expensive gold deposits ; like plug & forget commercial cards with "gold fingers" 3 As my versatility favorite performing all above + the switching functions via carbon pills mounted on silicon pads (most of mobile and other phones, alarm pads; etc.) ; where we life tested the No. of switch cycles over a million without impairing the resistivity and integrity of the plating . 4 ? I'm sure I forgot some Correctly utilised the application is most versatile, clean, and cheap on the market . See you Paul Klasek http://www.resmed.com > ---------- > From: ccfswr[SMTP:[log in to unmask]] > Sent: Saturday, 15 August 1998 15:47 > To: [log in to unmask] > Subject: [TN] The Application of ENIG > > This message uses a character set that is not supported by the > Internet Mail Service. To view the original message content, open > the attached message. If the text doesn't display correctly, save the > attachment to disk, and then open it using a viewer that can display > the original character set.<<File: message.txt>> > ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################