Charles: Veeco has a model C-8 Caviderm. It's based on the four point resistance principal. When equipped with a special small hole probe it will measure down to a 10 mil hole. You can contact them at 516-738-9300, Ronkonkoma NY. I think they run about $9K for the full system. Of course that's in US$ :-) Regards Michael Barmuta Staff Engineer Fluke Corp. Everett Wa. 425-356-6076 -----Original Message----- From: Desroches, Charles [mailto:[log in to unmask]] Sent: Monday, April 26, 1999 6:24 AM To: [log in to unmask] Subject: [TN] Copper thickness measurement small PTH. Hello Technet world, I'm looking for non destructive method to measure copper thickness in small holes such as .020 inch and smaller. If anyone ever saw some equipment that has this capability, I would certainly appreciate some feed-back off-line. Thank you all for your support, Charles. Charles Desroches Technical Advisor Viasystems Canada inc. 379 Brignon Street Granby, Quebec, Canada J2G 8N5 Voice: 450-372-8111 (2257) Fax: 450-378-5110 [log in to unmask] <[log in to unmask]> ################################################################ 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 ################################################################ ################################################################ 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 ################################################################