21. The appearance of thin films and coatings is directly affected by interference effects. 22. Likewise, thin film encapsulation can trap fabrication byproducts in the cavities. 23. The process is often used in the semiconductor industry to produce thin films . 24. RHEED is an extremely popular technique for monitoring the growth of thin films . 25. "You have to spread it into a thin film , and that's not practical. 26. The Cool Chip contains two thin films , separated by a narrow vacuum layer. 27. Usually, a thin film of molecular hydrogen forms on the metal. 28. Such paper-thin films are made of 200 to 1, 000 layers of material. 29. Thin films sacrifice some light gathering efficiency but use less material.30. They are used as a thin film for full-spectrum colour displays.
