Download GTU BE/B.Tech 2019 Winter 7th Sem New 2170311 Biomedical Microsystems Question Paper

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Subject Code: 2170311
Subject Name: Biomedical Microsystems

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Time: 10:30 AM TO 01:00 PM
Instructions:
1. Attempt all questions
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

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Q.1
(a) What is LIGA process? [03]
(b) How MEMS technology will be useful in various fields? [04]
(c) What is significance of Lift off process? Explain it in detail. [07]

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Q.2
(a) Define the terms: MEMS and Microelectronics. [03]
(b) List out different techniques used for Wafer bonding. Explain any one technique in detail. [04]
(c) Explain chemical mechanical polishing in fabrication of MEMS. [07]

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OR
Explain Bulk micromachining in detail. [07]

Q.3

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(a) Define Sensor Noise. [03]
(b) Explain Smart sensors. [04]
(c) Describe the process of plasma etching. [07]

OR

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Define Electron Tunneling. [03]

Q.4
(a) Explain Biosensors arrays in detail. [04]
(b) Describe the process of wet etching. [07]

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Q.5
(a) Explain Bio sensing Principles of Micro biosensor. [03]
(b) Explain MEMS Chemical Sensors. [04]
(c) Write a short note on the processes of Physical Vapor Deposition (PVD) with necessary diagrams. [07]

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OR
Explain Material Doping in fabrication process. [03]

Q.5

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(a) Explain the steps of packaging in detail. [04]
(b) Write a short note on the processes of Chemical Vapor Deposition (CVD) with necessary diagrams. [07]

(c) Explain Microsystems for Biological Imaging. [03]
(d) Define sacrificial layer and structural layers used in MEMS. [04]

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(e) Explain different Diagnostic applications of Metal Nano shells. [07]

OR
Explain MEMS Actuators. [03]

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Q.5
(a) Explain Classification of micro physical sensors. [04]
(b) Explain mechanism and working of micro devices for oral drug delivery system. [07]

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- VII (New) EXAMINATION — WINTER 2019
Date: 03/12/2019
Total Marks: 70