Interpretation:
Similarity between wet etching and plasma etching should be explained.
Concept introduction:
Microfabrication is a process through which nearly all the semiconductor type materials and circuits are fabricated. The microfabricated devices are formed over the substrate surface with one or more thin films. In most of the devices, silicon wafers are generally used as substrate.
The insertion of desirable pattern is done through masking, in which a certain portion of the film is detected which is to be removed for insertion.
Etching is the process of removing a small portion of that thin film or substrate from the device.
This etching can be of two types; dry etching (plasma etching) or wet etching (chemical etching).
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
Chemistry for Engineering Students
- True or false? In general, a large atom has a smaller electro-negativity. Explain.arrow_forward7.63 What physical concept forms the premise of VSEPR theory?arrow_forwardAcetic acid has the structure CH3CO(OH), in which the OH group is bonded to a C atom. The two carbonoxygen bonds have different lengths. When an acetic acid molecule loses the H from the OH group to form the acetate ion, the two carbonoxygen bonds become equal in length. Explain.arrow_forward
- Compare the properties of an ionic material such as sodium chloride with a room-temperature ionic liquid. Explain this difference.arrow_forwardThe lattice energy of LiF is 1023 kJ/mol, and the Li—F distance is 200.8 pm. NaF crystallizes in the same structure as LiF but with a Na—F distance of 231 pm. Which of the following values most closely approximates the lattice energy of NaF: 510, 890, 1023, 1175, or 4090 kJ/mol? Explain your choice.arrow_forwardWhat are the representative elements? In what region(s) of the periodic table are these elements found? In what general area of the periodic table are the metallic elements found? In what general area of the table are the nonmetals found? When in the table are the metalloids located?arrow_forward
- 7.84 Which of the following molecules is least likely to actually exist OF4,SF4,SeF4 , or TeF4 ? Why?arrow_forwardConsider the reactions of silver metal, Ag(s), with each of the halogens: fluorine, F2(g), chlorine, Cl2(g), and bromine, Br2(l). What chapter data could you use to decide which reaction is most exothermic? Which reaction is that?arrow_forwardhat does temperature measure? Are the molecules in a beaker of warm water moving at the same speed as the molecules in a beaker of cold water? Explain? What is heat? Is heat the same as temperature?arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning