Advancing the Analog Custom
Design Interoperability
Tom Quan
18th Synopsys EDA Interoperability Developers’ Forum, Santa Clara CA, November 9, 2006
AWR Product Solutions
System Components
Satellite 3G-Wireless WiMax UWB 802.11a,b,g.. Bluetooth xDSL Cable Optical
Communications
Subsystems
Design
Subsystem IP
Component
Libraries
Microwave IC,
Module & PCB
Design
Analog & RFIC
Design
Silicon
SiGe/CMOS
Foundry PDKs
GaAs
InP/InGaP/…
Foundry PDKs
Circuit Components
LNAs Mixers Amps Transceivers QAM QPSK Laser Drivers &
Detectors
PLLs Synthesizers
Filters CDRs MUXs
AWR – Tom Quan – EDA Interoperability Developers’ Forum
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Interactive Design Environment
(fully parametric with built-in statistical analysis & optimization)
RF 3D Extractor
Interactive DRC
Assisted Place & Route
IC/Package/PCB Layout
Intelligent Net™
EM Simulator(s)
HSPICE Simulator
Aplac Simulators
HB/Linear Simulator
Visual System Sim
Integrated Waveform Display & Analysis
Design Capture
C++, Visual Basic Scripting Environment
AWR Solution Architecture
System Libs & Process Design Kits (Si, SiGe, GaAs, InP)
Integrated Database/Object-Oriented Data Model
Unified Data Model & UI for
All Phases of Design
AWR – Tom Quan – EDA Interoperability Developers’ Forum
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Data and Tool Interfaces
Analog Office Design Flow
Full Chip Integration
With Digital Blocks
System
Models
Silicon
Foundry
PDKs
Full Chip Schematic
Full Chip Layout
Full Chip Extraction
Current Design
Schematics
Layout
LVS Netlist
Post Layout Simulation
Full Chip DRC/LVS
RFIPs
System Design/Sim
VSS
Design Entry
AO
Circuit Simulation
HB/HSPICE/APLAC
Circuit Simulator
Spectre
Block/Chip Layout
AO
Router
Pulsic’s Lyric
On-the-Fly Extraction
AO
Inductance
Helic’s VeloceRF
Net Extraction
AO/Net-An
EM Extraction
CST, IE3D, Sonnet,..
DRC/LVS
AO Interface
DRC/LVS
Calibre
Tapeout
Tapeout
AWR – Tom Quan – EDA Interoperability Developers’ Forum
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AWR Open Design Platform
• Unified data model interoperable with OpenAccess
– Support easy-to-use & highly interactive design environment
– OA data model compliant
– Clean interfaces with other OpenAccess compliant tools
• Open API/Open Sockets
– EM simulation/extraction – 7 tools plugged in today
– Circuit simulation – 4 simulators plugged in today
– Physical design – layout editor, auto P&R, and layout
compaction plugged today
– Physical verification – 2 DRC/LVS tools today
• Open PDK
– Standard Pcell development language – C++, Python, Tcl
Open Platform Ù Interoperability
AWR – Tom Quan – EDA Interoperability Developers’ Forum
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AWR Interoperability
System/T&M
APLAC models
Spectre/Matlab
Verification
Mentor Calibre
ICED LVS/DRC
Cadence Assura
Design Capture
Cadence Schematic I/F
Cadence Open Access
Mentor Boardstation
EM Analysis &
Extraction
Circuit Simulation
Sim Socket
EMSight
CST
OEA
Sonnet
Zeland
Optimal
MEM Res
Vector Fields
APLAC
HSPICE
Spectre
HyperLynx
Layout
PDKs
GDSII <> Cadence/Synopsys
OpenAccess <> Pulsic
Mentor PCB Products
TSMC, Jazz,
Peregrine, IHP
AWR – Tom Quan – EDA Interoperability Developers’ Forum
AWR Company Confidential
6
RF Process Design Kit
¾Configurable passive & active components
¾Scalable active devices
¾Accurate RF non-linear device models
¾Symbols, models, layout generators, DRC/LVS rules
¾Temperature variations, corners
• Active devices
• NPN transistors for digital/high performance/high breakdown
• RF and standard N- & P-channel MOSFETS
• Junction varactor
• MOS varactor
• N+ P-well diode/P+ N-well diode
• Passive devices
• Metal-insulator-metal capacitor
• Scalable octagonal inductor
• N-well resistor with multiplicity for series/parallel connection
• Polysilicon resistors with multiplicity for series connection
• Diffusion resistors with multiplicity for series connection
AWR – Tom Quan – EDA Interoperability Developers’ Forum
SiGe NPN
Inductor
Varactor
Resistor
7
PDK Interoperability Requirements
• Design constraints
– Electrical
– Physical
– Manufacturing
• Simulation Models
Symmet r y
Di st ance bet ween i nduct i ve el ement s
Pl acement of dummy el ement s
Pl acement of pass capaci t or s
P&R of guar d banc
Common cent r oi d
Pl acement of par i Tr . s
Zi g zag pl acement of Rs
Encl osed R, C and MOS
I sol at i on of N-r egi on, Addi t i onal subst r at e f or MO
– HSPICE, Spectre, others
• Electrical
– Schematic symbol
– Naming conventions
– Electrical/physical parameters
• Physical
– Parameterized Cells (Pcells)
– DRC/LVS/LPE/DFM rules
(from foundry)
– GDS layer map (from foundry)
AWR – Tom Quan – EDA Interoperability Developers’ Forum
Gen:Bic35:SPIRAL
ID=L1
NTURNS=2.5
W=5 um
S=2 um
IDia=50 um
Gen:Bic35:npn1
ID=Q1
N=1
Imax=1.5 mA
1
4
2
Sub
npn1
3
8
PCell on OpenAccess
PyCell PCell
SKill PCell
Scripted
TCL PCell
Python PCell
PyCell Library
C++ PCell
Compiled
Skill Evaluator
TCL Evaluator
Python Evaluator
Python Evaluator
API
OA PCell API
OA PCell API
OA PCell API
OA PCell API
OA PCell API
OpenAccess API
Reference OpenAccess Database
•
•
Which approach used does not matter that much
Pcells created using any of the approaches could be ported to any OA
system
– Compiled PCells will require compilation on each supported platform
– Scripted PCells will only require the supporting plug-in to be compiled on
each platform
AWR – Tom Quan – EDA Interoperability Developers’ Forum
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Steps to Ensure PDK Interoperability
1. Validating several sets of generic Pcells
written in Python, C++ and Tcl on one OAcompliant design platform (AWR)
2. Validating one set of generic Pcells on
different OA-compliant design platforms
3. Defining a common format for electrical and
physical parameters
4. Defining a common format for design
constraints
5. Validating a generic PDK on different OAcompliant design platforms
AWR – Tom Quan – EDA Interoperability Developers’ Forum
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Thank You!
Tom Quan (tomq@appwave.com)