9:07 AM OFFICE MEMO Time: Subject: Mechanical Properties of SiNx, Au and... 6/26/96 Date: Mr. Bolin: I have found some Young's modulus values for SiNx, Au and Si thin films. 1. SiNx 290 nm thick, Young's modulus: 222 (+/-) 3 GPa Reference: J. J. Vlassak and W. D. Nix, J. of Materials Research, Vol 7, No.12 Dec 1992, pp3242-3249. 2. Au 0.87 micro-meter thick, Young's modulus 57 Gpa. 3. 3. Si Young's modulus 163 GPa Reference for 2 and 3: William D. Nix, "Mechanical Properties of Thin Films," Metallurgical Transactions A, Vol. 20A, Nov. 1989, pp 2217-2245. Also, please put my name on the distribution list of MEMS e-mail. Thank you. Dick Chang Mechanics and Materials Technology Center The Aerospace Corporation (310)-336-5808 e_mail: dick_chang@qmail2.aero.org