Hello, I'm trying to deposit a 0.5 micron layer of titanium/gold on a portion of a PMGI mesa, but after the lift-off there are no metals left. I use titanium only to improve the adhesion between metal and resin. Note that the PMGI is previously baked at 230 °C for 5 minuts and reflowed at 300 °C for 7 minuts. I wonder whether anybody has an idea how I could increase the adhesion between PMGI and metals. Thanks ! Giuliano