Ni will not adhere to SiO2 or Si3N4 very well. Under the Ni, use an adhesion layer of 50-200 A of Cr, Ti, TiW, etc. --Kirt Williams ----- Original Message ----- From: "battas aziz"To: "General MEMS discussion" Sent: Friday, August 29, 2008 11:42 AM Subject: [mems-talk] Adherence > Please i need to knew if Nickel adhere to the oxyde (SiO2)and > nitride(Si3N4) > Thanks Aziz