Things To Draw

Question 1

Draw the inductor symbol, with and without bulk

Answer 1

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Question 2

Draw an XOR and an XNOR schematic

Answer 2

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Question 3

Draw a six-transistor single-port SRAM. Draw an eight transistor dual-port SRAM.

Answer 3

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Question 4

Draw a block diagram of a SRAM core

Answer 4

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Question 5

Draw a block diagram of a PLL

Answer 5

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Question 6

Draw a block diagram of a bias

Answer 6

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Question 7

Draw a common ESD circuit

Answer 7

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Question 8

Draw some common IO buffers

Answer 8

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Question 9

Draw a simple tri-state buffer and an IO tri-state buffer

Answer 9

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Question 10

Draw two alternative layouts of bond pads and their P & N devices

Answer 10

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Question 11

Draw the symbol of a Schmitt Trigger (hysteresis) and a common circuit.

Answer 11

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Question 12

Draw a ring oscillator, and a quartz crystal oscillator.

Answer 12

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Question 13

Draw a schematic and and layout of how to match three gates in series.

Answer 13

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Question 14

Draw a current mirror schematic

Answer 14

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Question 15

Draw an OpAmp circuit and two matching placement plans.

Answer 15

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Question 16

Draw a bias circuit and and two matching placement plans.

Answer 16

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Question 17

Draw a capacitor array and a matching placement plan

Answer 17

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Question 18

Draw 4 different power and ground routing plans for mixed signal circuits, from worst to best.

Answer 18

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Question 19

Draw a cross section and layout of DNW.

Answer 19

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Question 20

1. Draw schematic, layout, and cross-section of a NPN.
2. Draw a layout of a two-emitter NPN and 2 collector NPN.
3. Draw a layout of a PNP.
4. Draw a layout of a PNP derived from a pfet.
5. Draw a layout of a 2 collector PNP.
6. Draw a layout of a regular diode from an NPN.
7. Draw a layout of a regular PN diode.
8. Draw a layout of a NPN zener diode.
9. Draw two other zener diodes.
10. Draw schematic symbols for all of the above, as well as Schottky NPN, Schottky diode, and Vertical PNP.

Answer 20

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Question 21

1. Draw a layout of a typical poly, N+ or P+ resistor.
2. Draw a layout of an nwell resistor.
3. Draw a layout of a thin-film resistor.
4. Draw a layout of a poly, N+ or P+ resistor in a silicide technology.

Answer 21

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Question 22

1. Draw a layout of a gate-oxide MOS capacitor.
2. Draw a layout of an ONO capacitor.
3. Draw a layout of an MIM capacitor.
4. Draw a layout of a junction capacitor.

Answer 22

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Question 23

Draw a cross sectional view of latch up, and the schematic for the parasitic circuit created.

Answer 23

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Question 24

Draw a finFET

Answer 24

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Question 25

Draw a DRAM

Answer 25

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Question 26

Draw a cross section of an E2PROM or FLASH NAND, a schematic of a flash NMOS and a NAND flash.

Answer 26

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Question 27

Draw a ROM

Answer 27

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Question 28

Draw the symbol of a fuse

Answer 28

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Question 29

Draw layout and cross-sectional view of High Field Stress Relief MOSFET

Answer 29

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Question 30

Draw schematic symbols for three common flip-flops. Draw a truth table for a JK flip flop.

Answer 30

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