STSetch2 Profile Characterization - Undercut Investigation for Silicon Trench Etching in STSetch2- Final Report PDF File: STSetch2 Profile Characterization - Undercut Investigation for Silicon Trench Etching in STSetch2- Final Report This should be displaying STSetch2 Profile Characterization - Undercut Investigation for Silicon Trench Etching in STSetch2- Final Report inline. If it's not, look to see if your browser is set to automatically download pdf files.