Hi GQ Chu, Check out the Metal Finishing Guidebook)2008/09. To reduce stress: Increase[Rh] Increase [H2SO4] Increase Temp. Carbon treat Remove inorg. Contaminants Avoid over-heating solution! Regards, David Roberts (Wafer Plating Specialist) Prodigy Surface Tech (408) 469-3203 cell 807 Aldo Ave., Suite 103 Santa Clara, CA 95054 Phone (408) 492-9390 FAX (408) 492-9391 -----Original Message----- From: GQ Chu [mailto:gqtchu@gmail.com] Sent: Friday, January 23, 2009 6:46 AM To: mems-talk@memsnet.org Subject: [mems-talk] Plated Rh Stress Hello, Does anyone know how to bring the stress of the Rh down and what causes the stress to go up for the Rh bath? Does anyone know where I can find an expert in Rh plating that I can hire as a consultant? -- Thank You Very Much, GQ Chu