IPC TM-650 2.2.17A

Surface Roughness and Profile of Metallic Foils (Contacting Stylus Technique)

contributor author	IPC - Association Connecting Electronics Industries
date accessioned	2017-09-04T16:19:05Z
date available	2017-09-04T16:19:05Z
date copyright	02/01/2001
date issued	2001
identifier other	THBGQAAAAAAAAAAA.pdf
identifier uri	http://mapnamagz.yabesh.ir/std;query=autho1826AF6708/handle/yse/82477
description abstract	This method defines the procedure for determining the roughness or profile of metallic foils. The surface finish or roughness of foils shall be evaluated using Ra. Ra is defined as the arithmetic average value of all absolute distances of the roughness profile from the center line within the measuring length. The foil profile of foils shall be evaluated using the parameter RZ (DIN) or RTM, which is defined as the average maximum peak to valley height of five consecutive sampling lengths within the measurement length. This value is approximately equivalent to the values of profile determined from microsectioning techniques. RZ (ISO) is a different parameter from RZ (DIN) and is not applicable to this method.
language	English
title	IPC TM-650 2.2.17A	num
title	Surface Roughness and Profile of Metallic Foils (Contacting Stylus Technique)	en
type	standard
page	2
status	Active
tree	IPC - Association Connecting Electronics Industries:;2001
contenttype	fulltext