I would think direct fusion bonding in a standard lab furnace would be difficult because of the differences in glass transition temperatures and coefficients of thermal expansion between glass and silicon. However, during my PhD days, I recall another student who reported making his own anodic bonding setup with a hotplate and a HV power supply. He reported success with bonding silicon to glass but unfortunately I never saw the setup or have any more detailed knowledge of what he did! From my limited knowledge of anodic bonding I believe you will need around 1kV DC, about 500degC and glass with sodium ions (e.g. soda-lime). On Tue, Feb 10, 2009 at 18:11, jingru zhangwrote: > Dear all, > > Since we don't have equipment for anodic bonding in the lab, I need to > figure out how to bond silicon and glass together by fusion bonding? > However, I tried lots of pieces and they all failed. I did HF and RCA 1 > clean for both silicon substrate (with pattern on it) and glass before > bonding but it 's not bonding. Does anyone have done silicon and glass > fusion bonding before? Any suggestions will be appreciated. > > Thank you. > > Best, > Jingru >