Dear MEMS fellas, Looking forward ordering SOI wafers for some microsystems activity (mainly optical switches) and just wonder what type of structural Si N or P should I use. In fact, I noticed that JDS Uniphase are using N type for there muti_user process (MUMP's SOI). My concern is about the reasons for which the N type is probably preferred for micromachining and in which cases, brief what are the cons and pros of using either types. Thank you in advance Sofiane --------------------------------- Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en français ! Testez le nouveau Yahoo! Mail