This is not my field of expertese, but I do remember reading an article about this. I've tracked it down: http://www.elecdesign.com/Articles/Index.cfm?ArticleID=3D781 -tom -----Original Message----- From: Parthasarathy Sampath [mailto:parthsv@xxxxxxxxx]=20 Sent: Monday, April 21, 2003 7:41 PM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] Center of Mass of Transistors. Hi all, In layout of transistors, center of mass of transistors tend to affect the matching between transistors, i.e, if they do not have same center of mass. That is the reason common centroid layout is used.=20 Anybody can explain me whts center of mass and how does it affect the match/miss-match between transistors. Thanks in advance, Regards Partha! __________________________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo http://search.yahoo.com ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: =20 //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages=20 Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu =20 ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu