NiCr is used most often for micro heaters since its resistance changes very little with temperature.Best wishes,Mike > Date: Wed, 24 Oct 2007 21:36:01 +0800 > From: steven030505@gmail.com > To: mems-talk@memsnet.org > Subject: [mems-talk] Which metal is better for micro heater > > Hi,all > To fabricate a micro heater with metal pattern, which metal is better, > Al, Pt, or Au? Better means using low power to achieve the same > temperature, lets say cost less than 10mW to get temperature around > 100-200 degree with line width around 20um.