公开(公告)号：DE68910243T2

公开(公告)日：1994-05-05

申请号：DE68910243

申请日：1989-07-12

Applicant: IBM

Inventor： COX DENNIS THOMAS ,  GUERTIN DAVID LEROY ,  JOHNSON CHARLES LUTHER ,  RUDOLPH BRUCE GEORGE ,  TURNER MARK ELLIOT ,  WILLIAMS ROBERT RUSSELL

IPC: G01R31/28 ,  G01R29/02 ,  G01R31/30 ,  G06F11/22 ,  G11C29/00 ,  G11C29/02 ,  G11C29/56 ,  H01L21/822 ,  H01L27/04 ,  H03K19/003

Abstract: A performance-sensing element (PSE) circuit (300) detects the actual speed of other circuits on the same chip (200) by launching a pulse into a tapped cascade of circuits on the chip, then detecting how far the pulse has progressed after a known interval. Control signals indicating circuit speed can stabilize parameters of the other circuits, such as rate of change of current (di/dt) in driver circuits, absolute delay of clock signals from one chip to another, and relative delay of multiple clock signals within the chip.

公开(公告)号：DE68910243D1

公开(公告)日：1993-12-02

申请号：DE68910243

申请日：1989-07-12

Applicant: IBM

Inventor： COX DENNIS THOMAS ,  GUERTIN DAVID LEROY ,  JOHNSON CHARLES LUTHER ,  RUDOLPH BRUCE GEORGE ,  TURNER MARK ELLIOT ,  WILLIAMS ROBERT RUSSELL

IPC: G01R31/28 ,  G01R29/02 ,  G01R31/30 ,  G06F11/22 ,  G11C29/00 ,  G11C29/02 ,  G11C29/56 ,  H01L21/822 ,  H01L27/04 ,  H03K19/003

Abstract: A performance-sensing element (PSE) circuit (300) detects the actual speed of other circuits on the same chip (200) by launching a pulse into a tapped cascade of circuits on the chip, then detecting how far the pulse has progressed after a known interval. Control signals indicating circuit speed can stabilize parameters of the other circuits, such as rate of change of current (di/dt) in driver circuits, absolute delay of clock signals from one chip to another, and relative delay of multiple clock signals within the chip.