From: [log in to unmask] Return-path: <[log in to unmask]> To: [log in to unmask], [log in to unmask] Subject: Re: [TN] Micro-strip and Controlled Impedance Date: Fri, 8 Jan 1999 18:02:02 EST Mime-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Frank and Earl, Don't forget that if you must place construction characteristics such as line widths, and thicknesses on the drawing, make them for reference. The primary concern is that the impedance of the transmission line falls within the stated tolerance, not the individual features. Fabricators must tweak these features to match their process capabilities while meeting the final impedance requirement. Regards, Gary Ferrari Executive Director IPC Designers Council 860-350-9300