Update app.py

app.py

@@ -66,6 +66,7 @@ For open-source repository, please refer to: __TBA__
         examples=[
             "Describe different type of etching in semiconductor manufacturing process",
             "What is Photolithography ?",
+            "Describe in detail about PVD, CVD, and ALD and their role in semiconductor manufacturing",
             "What elements are necessary for miniaturization of semiconductor etch manufacturing equipment and what are their priorities?",
         ],
         cache_examples=True,