SEMESTER-IV

EL - 403 Integrated Circuit Technology and CAD-VLSI

Integrated Circuit processing, concepts of fabrication of an IC chip from semiconductor wafer, Die fabrication, scribing, bonding and packaging, comparison of thin film, thick film, hybrid and monolithic integrated circuits.
NMOS, CMOS technologies, isolation techniques, self alignment, local oxidation, planarization, metallization, diffused, ion implanted and thin film resistors.

Design of NMOS inverter, stick diagrams, colour and monochrome codes in stick diagrams and mask layouts, pull up to pull down ratio, correspondence of design parameters with specifications, mask layout designs for NMOS/CMOS NAND, NOR gates.

The cost -volume trade-off, role of design center and foundry, design methodologies, custom and semicustom designs, standard cell, gate array, FPGA, CPLD and PLDs

Hierarchical design of VLSIs, interception levels, behavioral description, RTL, Logic circuit, gate, circuits, device, process, Circuit topology to patterning geometry to wafer fabrication, basics of silicon compiler.

CAD VLSI tools, simulators for logic, timing, circuit, device and process optimization, Xilinx, Spice, Minmos, Suprem simulation tools, Layout design, assignment, partitioning, placement, global and channel routing, compaction and verification algorithms and tools, Layout design verifiers, mask pattern generators.

Hardware description languages for VLSI design, VHDL and Verilog, programming and subsystem design concepts, design of multiplexer, parity generator leaf cell, adder, subtractor, multiplier, ALU, datapaths and FSMs, design for testability, processor design.

EL - 405 Industrial process control

Introduction to functional elements of control system, control strategies, continuous and discrete state controller, feedback, feed forward and adaptive control strategies, data logger, supervisory and direct digital control systems Application specific selection of transducers for measurement and control of process parameters like, temperature, pressure, flow, level, density, safety and weight. Synchro/servo motors, control valves, solenoids, electropneumatic converters, indicators, annunciators, alarms, displays, recorders.
Control loop characteristics, process equation, process, lead, lag, self regulation, control system parameters, error, variable range, control parameter range, control lag, dead time, cycling, controller modes, ON-OFF control, proportional mode, integral and differential actions, P, PI, PID modes, open/ closed loop tuning of PID, Ziegler-Nicholas method.

Mathematical models of systems, state variable models, analysis of state variable models of open and closed loop systems, stability criterion, Routh-Hurwitz stability criterion, root locus and frequency response methods of control system analysis.

Programmable logic controllers,, process event and space sequence description, ladder diagram, programming a plc, use of microcontrollers, fuzzy logic. Process control systems and automation, case studies of boiler, chiller, clean room, furnace, heat exchanger, pump, steam turbine, bottling plant and tea/coffee vending machine control.

CAD/CAM, Introduction to standard CAD/CAM softwares, computer integrated manufacturing, NC, CNC and computer controlled robots.

EL - 406 Transducers, actuators & electronic components

Transducer classification, requirements, basic physics, design considerations, practical difficulties associated with the fabrication of sensors, technologies such as thin/thick films, silicon micromachining, SAW used in different domains.
Mechanical, thermal, optical, electrical, magnetic, chemical sensors, displacement, strain, vibration, pressure, flow, force and torque, temperature transducers.

Actuators, electromechanical, electrothermal, electro-optical and electrochemical actuators, working principles, specifications and application examples, relays, motors, heaters.

Electronic components, specifications of commercially available components, modern package like SMDs, application circuits of sensors with electronic components, Signal conditioning circuits.