Lab 8 - EE 421L - Digital Integrated Circuit Design

Generate a test chip layout for submission to MOSIS for fabrication 

Authors:

Allis Hierholzer: hierholz@unlv.nevada.edu

Francisco Mata Carlos: matacarl@unlv.nevada.edu

Biruk Gebremeskel: gebreb1@unlv.nevada.edu

12/5/18

Link to Directory: Chip4_f18

Pre-Lab:

• Back-up all work from the lab and the course
• Go through Cadence Tutorial 6
• Read through the lab before starting to work on it
  

Lab Description:

• Each test circuit should have its own power but ground should be shared between the ciruicts.
• Power should not be shared between the ciruicts so that a vdd!-gnd! short in one circuit doesn't make one of the other circuits inoperable
• Ground should be pin 20

Chip Schematic	Chip Layout

• Ring Oscillator:

Symbol	How to test
	Ground pin<20>  Connect 5V VDD to pin<19> Measure the output at pin<18>

• NAND gate

Symbol	How to test
	Ground pin<20> Connect 5V VDD to pin<10> Apply inputs to pin<11> and pin<12> Measure the output at pin<9>

• NOR gate

Symbol	How to test
	Ground pin<20> Connect 5V VDD to pin<14> Apply inputs to pin<15> and pin<16> Measure the output at pin<13>

• Inverter

Symbol	How to test
	Ground pin<20> Connect 5V VDD to pin<7> Apply input to pin<8>  Measure the output at pin<6>

• PMOS

Symbol	How to test
	Apply 5V VDD to body at pin<33> Drain connection at pin<35> Source connection at pin<34> Gate input at pin<36>

• NMOS

Symbol	How to test
	Ground the body at pin<20> Drain connection at pin<38> Source connection at pin<37> Gate input at pin<390-->

• Voltage Divider

Symbol	How to test
	Ground pin<3> Apply Vin at pin<5> Measure Vout at pin<4>

• Serial To Parallel Converter

Symbol	How to test
	Ground pin<20> Apply 5V VDD to body at pin<21> Apply input to pin<22> Apply input clock to pin<23> Measure the output at pin<25:32>, these are parallel output of the system Measure the clock out at pin<24>,

• Boost SPS: 

Symbol

How to test

Ground pin<20> Measure the output of SPS at pin<1> This pin connects to a 30uH inductor and to a schottky diode. The inductor is connected to VDD on the other side. The other side of the diode is connected to a 5uF capacitor and load resistor of 250 Ohm. The node connected to the capacitor and load resistor is Vout and is used as the feedback into the system of the SPS. This ciruict composes a Boost SPS. Measure the feedback inpu at pin<2> which is labeled Vout

• Final DRC AND LVS