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Digital Integrated Circuits© Prentice Hall 1995 Interconnect COPING WITH INTERCONNECT.

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Presentation on theme: "Digital Integrated Circuits© Prentice Hall 1995 Interconnect COPING WITH INTERCONNECT."— Presentation transcript:

1 Digital Integrated Circuits© Prentice Hall 1995 Interconnect COPING WITH INTERCONNECT

2 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Impact of Interconnect Parasitics

3 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Nature of Interconnect

4 Digital Integrated Circuits© Prentice Hall 1995 Interconnect INTERCONNECT

5 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Capacitance: The Parallel Plate Model

6 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Typical Wiring Capacitance Values

7 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Fringing Capacitance

8 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Fringing Capacitance: Values

9 Digital Integrated Circuits© Prentice Hall 1995 Interconnect How to counter Clock Skew?

10 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Interwire Capacitance

11 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Interwire Capacitance

12 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Impact of Interwire Capacitance

13 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Capacitance Crosstalk

14 Digital Integrated Circuits© Prentice Hall 1995 Interconnect How to Battle Capacitive Crosstalk

15 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Driving Large Capacitances

16 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Using Cascaded Buffers

17 Digital Integrated Circuits© Prentice Hall 1995 Interconnect t p in function of u and x

18 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Impact of Cascading Buffers

19 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Output Driver Design

20 Digital Integrated Circuits© Prentice Hall 1995 Interconnect How to Design Large Transistors

21 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Bonding Pad Design Bonding Pad Out In V DD GND 100  m GND Out

22 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Reducing the swing Reducing the swing potentially yields linear reduction in delay Also results in reduction in power dissipation Requires use of “sense amplifier” to restore signal level

23 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Charge Redistribution Amplifier

24 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Precharged Bus

25 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Tristate Buffers

26 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Using Bipolar Versus MOS But: Bipolar does not scale well with voltage!

27 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Bipolar Versus MOS (cont.)

28 Digital Integrated Circuits© Prentice Hall 1995 Interconnect INTERCONNECT

29 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Wire Resistance

30 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Interconnect Resistance

31 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Dealing with Resistance

32 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Polycide Gate Mosfet

33 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Modern Interconnect

34 Digital Integrated Circuits© Prentice Hall 1995 Interconnect RI Introduced Noise

35 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Power and Ground Distribution

36 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Electromigration (1)

37 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Electromigration (2)

38 Digital Integrated Circuits© Prentice Hall 1995 Interconnect RC-Delay

39 Digital Integrated Circuits© Prentice Hall 1995 Interconnect RC-Models

40 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Reducing RC-delay Repeater

41 Digital Integrated Circuits© Prentice Hall 1995 Interconnect The Ellmore Delay

42 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Penfield-Rubinstein-Horowitz

43 Digital Integrated Circuits© Prentice Hall 1995 Interconnect INTERCONNECT

44 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Inductive Effects in Integrated Circuits

45 Digital Integrated Circuits© Prentice Hall 1995 Interconnect L di/dt

46 Digital Integrated Circuits© Prentice Hall 1995 Interconnect L di/dt: Simulation

47 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Choosing the Right Pin

48 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Decoupling Capacitors

49 Digital Integrated Circuits© Prentice Hall 1995 Interconnect The Transmission Line

50 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Lossless Transmission Line - Parameters

51 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Wave Propagation Speed

52 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Wave Reflection for Different Terminations

53 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Transmission Line Response (R L = 

54 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Lattice Diagram

55 Digital Integrated Circuits© Prentice Hall 1995 Interconnect ECL Gate Line Response

56 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Output Buffer Model

57 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Output Buffer - Response

58 Digital Integrated Circuits© Prentice Hall 1995 Interconnect When to Consider Transmission Line Effects?

59 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Packaging

60 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Bonding Techniques

61 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Tape-Automated Bonding (TAB)

62 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Flip-Chip Bonding

63 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Package-to-Board Interconnect

64 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Package Types

65 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Package Parameters

66 Digital Integrated Circuits© Prentice Hall 1995 Interconnect Multi-Chip Modules


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