lecture38 - Lecture #38 ANNOUNCEMENTS Prof. King's Office...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 38, Slide 1 EECS40, Fall 2003 Prof. King Lecture #38 ANNOUNCEMENTS Prof. King’s Office Hour today is changed back to 4-5 PM HW#11, Problem 4 : The number of dice per wafer must be rounded down to an integer value! Reminder: Tutebot projects are due beginning 12/2 HW#12 (short assignment) will be due 12/5 Discussion sections and lab sections will continue as usual OUTLINE • Propagation delay with interconnect • Inter-wire capacitance • Pi model for capacitive coupling • Coupling capacitance effects – loading – crosstalk Lecture 38, Slide 2 EECS40, Fall 2003 Prof. King Propagation Delay with Interconnect wire wire dr fanout wire dr intrinsic dr p C R R C R R C R t ) 38 . 0 69 . 0 ( ) ( 69 . 0 69 . 0 + + + + = wire wire dr fanout wire dr intrinsic dr D p C R R C R R C R t ) ( 69 . 0 ) ( 69 . 0 69 . 0 69 . 0 + + + + = = τ Using the lumped-RC interconnect model: In reality, the interconnect resistance & capacitance are distributed along the length of the interconnect. Æ The interconnect delay is actually less than R wire C wire : The 0.38 factor accounts for the fact that the wire resistance and capacitance are distributed.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lecture 38, Slide 3 EECS40, Fall 2003 Prof. King B Wire B has additional sidewall capacitance to neighboring wires C
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/23/2009 for the course EECS 40 taught by Professor Chang-hasnain during the Fall '08 term at University of California, Berkeley.

Page1 / 6

lecture38 - Lecture #38 ANNOUNCEMENTS Prof. King's Office...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online