Text this: Fabrication of 90° wall of {100} plane on (100) Si by NaOH solution via design of experiments

  _____      ___      ______   _    _     _____   
 |__  //    / _ \\   /_____// | || | ||  /  ___|| 
   / //    | / \ ||  `____ `  | || | || | // __   
  / //__   | \_/ ||  /___//   | \\_/ || | \\_\ || 
 /_____||   \___//   `__ `     \____//   \____//  
 `-----`    `---`    /_//       `---`     `---`   
                     `-`