Download GTU B.Tech 2020 Winter 7th Sem 2170311 Biomedical Microsystems Question Paper

FirstRanker.com

GUJARAT TECHNOLOGICAL UNIVERSITY

BE- SEMESTER-VII (NEW) EXAMINATION - WINTER 2020

--- Content provided by⁠ FirstRanker.com ---

Subject Code:2170311 Date:30/01/2021

Subject Name:Biomedical Microsystems

Time:10:30 AM TO 12:30 PM Total Marks: 56

Instructions:

1. Attempt any FOUR questions out of EIGHT questions.

--- Content provided by​ FirstRanker.com ---

2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS

1. (a) What are Miller indices? 03
   (b) Explain Sputtering in detail. 04
   

   --- Content provided by⁠ FirstRanker.com ---

   (c) Explain PVD techniques used in MEMS technology. 07
2. (a) Discuss various alternate materials used for manufacturing of MEMS. 03
   (b) Explain Plasma etching with neat diagram 04
   (c) Explain CVD technique used in manufacturing of MEMS. 07
3. (a) Explain the effect of residual stress on MEMS device. Discuss the equation which is used to find residual stress. 03
   

   --- Content provided by​ FirstRanker.com ---

   (b) Explain sacrificial surface micromachining. Mention the different sacrificial used with different structural materials. 04
   (c) Explain Wet etching with neat diagram. 07
4. (a) Write and explain various CVD reactions. 03
   (b) Explain manufacturing of Silicon On Insulator (SOI) substrate with neat diagram. 04
   (c) Explain LIGA fabrication process. 07

--- Content provided by‍ FirstRanker.com ---

5. (a) Explain process of annealing in MEMS 03
   (b) Explain concept of electron tunneling. 04
   (c) Explain Lift off process with neat diagram. 07
6. (a) Explain concept of diffusion used in material doping. Give equation which governs the diffusion process. 03
   (b) With neat diagram explain the process of Implantation used in doping process. 04
   

   --- Content provided by‍ FirstRanker.com ---

   (c) Explain Diagnostic and Therapeutic Applications of Metal Nano shells. 07
7. (a) Explain current challenges in drug delivery and the remedies. 03
   (b) Write short note on Biosensors arrays and Implantable devices. 04
   (c) Explain Quantum dots usefulness as optical probes. Give one example. 07
8. (a) Discuss materials which are used in drug delivery. 03
   

   --- Content provided by‍ FirstRanker.com ---

   (b) Give classification of physical sensors, Integrated, Intelligent or Smart sensors 04
   (c) With neat diagram explain any one MEMS actuator design. 07

FirstRanker.com