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Interface Device Laboratory, Kanazawa University http://ifdl.jp/
Impact of NDA-Free&Open Source
on LSI Design & Fabrication
Junichi Akita
Kanazawa University
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
Contents
Introduction & Background
LSI as Tools
Moore’s Law: its two faces
NDA-free & Open Source
LSI Design & Fabrication Project
Design rule
Libraries & Design Flow
Examples
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
What is “Moore’s Law”
More transistors on Single Chip
Continuous Size Reduction
ref: http://www.intel.com/jp/intel/museum/processor/index.htm
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
What Did Moore’s Law Achieved?
DEC VAX(1976)
1MIPS
Cray-1 (1978)
100MIPS
MIPS:Million Instruction Per Second
(World’s 1st Super Computer)
“Faster Super Computer” & “So-fast Computer Everywhere”
20000MIPS
10MIPS
100MIPS
20MIPS
20000MIPS
109MFLOPS
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
Paradigm Shift in “LED Blinking”
No reason to employ MCU for “LED Blinking”
Low Cost, High Functionality
Extended practical application area of computer
“Feature Size Reduction” is NOT the only way
MCU
#Component=1
$1
Oscillator(555)
#Component=4
$1.5
while(1){
a = 1;
sleep(1);
a = 0;
sleep(1);
}
Possible, but non-realistic by PC
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
What Did Moore’s Law Caused?
Drastic Increase in LSI Design & Fabrication Cost
Shuttle Fabrication Service 〜$1k
Initial Fabrication Cost (Masks) 〜$1M
Design Tools 〜$1M
NDA (Non Disclosure Agreement) : Priceless
Fabrication Facilities 〜$1G
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
What NDA affects?
We can’t share the designed circuits
on GitHub…!
We can’t fork the designed circuits by others…!
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
Is “LSI” a Tool for Everyone?: Survey
CMOS 0.18um 5Al
2.5mm x 2.5mm
RingOSC x 1001
T-FF (Div)
(※LSI=集積回路のこと)
https://www.youtube.com/watch?v=Pt9i2ABe_mE
Comments: Stupid, Waste of tech, Mottainai, …
= “LSI is NOT a “true” tool for realizing something
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
Is “LSI” a Tool for Everyone?
Most people CAN’T imagine
to “design original LSIs”
Too expensive, Too complicated, No Experiences
Most people simply consider to buy LSI
MCU, Sensors, …
Lots Realized
Restrictions in Thinking: Using Exsisting LSI
Everyone use Kinect, few can invent Kinect
Losing Chance of Innovation
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
What Required for “LSI as Tool”?
CAD Tool
Too Expensive Commercial Tools
Too Complicated CAD System
Fabrication Service
Too Expensive, Too Long TAT (several months)
Strict NDA s
User Community
Specialists who know not only “How to design”,
but also “What to use” LSIs.
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
MakeLSI: - Outline
Know-how Sharing
Freeware CAD
Basic Knowledges
Community
100+ in ML
LSI Specialists & Non-specialists
NDA-Free Design & Fabrication
http://ifdl.jp/make_lsi
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
MakeLSI: - Design Rule
1um-grid rule
Can “satisfy” some fab’s
design rules
PTS 0.6um (JP)
HHGrace0.35um (CN)
…
Independent on fab’s
“limit” of design rule
= NDA-free
https://github.com/makelsi/OpenRule1um
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
MakeLSI: - Libraries
Standard Logic Cells
Analog Components (under development)
Distributed development
by contributors
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
MakeLSI: - Tools
Layout Tool: Glade, K-Layout
Circuit Simulator: LTspice / Spice3
Logic Synthesize & P&R: Alliance, Qflow
*Open Source Softwares
RISC-V processor (subset)
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
MakeLSI: - Fabrication
Commercial Fab’s shuttle
Phenitec Semiconductors (JP)
HH Grace (CN) : (will try soon)
(Future) minimalfab by AIST, Japan
0.5in wafer, Mask-less exposure, 1week TAT
Order custom LSI like PCB…!
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
MakeLSI: - 1st Trial in 2015
8 Contributors
Free fee, Open & Share Contents
11 Circuits
Kilburn Adder
Guitar Effector
1bit CPU
4-16 Decoder
Ring VCO, LC-VCO, BGR
Wide Variety, Passionate Activity
Saw Oscillator
OPA
MOSFET TEGs
Timer“555”
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
MakeLSI: - 2nd Trial in 2016
11 Contributors
Free fee, Open & Share Contents
12 Circuits
ALU
Guitar Effector
RingOSC
PSG
Delta-sigma ADC
Wide Variety, Passionate Activity
R-2R DAC
NRZI Codec
GoldCoder
Inverter, FA
Timer“555”
2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/
Summary
Effect of Moore’s Law
High Performance & Wide Spread of Applications
Drastic Increase of Cost and Requirement of NDA
Technology MUST become a Tool for Everyone
Wide application, Seed of innovation
NDA-free & Open Source LSI Development
Open framework, NDA-Free
Rapid development & improvement in IP

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Impact of NDA-Free&Open Source on LSI Design & Fabrication

  • 1. Interface Device Laboratory, Kanazawa University http://ifdl.jp/ Impact of NDA-Free&Open Source on LSI Design & Fabrication Junichi Akita Kanazawa University
  • 2. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ Contents Introduction & Background LSI as Tools Moore’s Law: its two faces NDA-free & Open Source LSI Design & Fabrication Project Design rule Libraries & Design Flow Examples
  • 3. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ What is “Moore’s Law” More transistors on Single Chip Continuous Size Reduction ref: http://www.intel.com/jp/intel/museum/processor/index.htm
  • 4. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ What Did Moore’s Law Achieved? DEC VAX(1976) 1MIPS Cray-1 (1978) 100MIPS MIPS:Million Instruction Per Second (World’s 1st Super Computer) “Faster Super Computer” & “So-fast Computer Everywhere” 20000MIPS 10MIPS 100MIPS 20MIPS 20000MIPS 109MFLOPS
  • 5. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ Paradigm Shift in “LED Blinking” No reason to employ MCU for “LED Blinking” Low Cost, High Functionality Extended practical application area of computer “Feature Size Reduction” is NOT the only way MCU #Component=1 $1 Oscillator(555) #Component=4 $1.5 while(1){ a = 1; sleep(1); a = 0; sleep(1); } Possible, but non-realistic by PC
  • 6. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ What Did Moore’s Law Caused? Drastic Increase in LSI Design & Fabrication Cost Shuttle Fabrication Service 〜$1k Initial Fabrication Cost (Masks) 〜$1M Design Tools 〜$1M NDA (Non Disclosure Agreement) : Priceless Fabrication Facilities 〜$1G
  • 7. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ What NDA affects? We can’t share the designed circuits on GitHub…! We can’t fork the designed circuits by others…!
  • 8. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ Is “LSI” a Tool for Everyone?: Survey CMOS 0.18um 5Al 2.5mm x 2.5mm RingOSC x 1001 T-FF (Div) (※LSI=集積回路のこと) https://www.youtube.com/watch?v=Pt9i2ABe_mE Comments: Stupid, Waste of tech, Mottainai, … = “LSI is NOT a “true” tool for realizing something
  • 9. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ Is “LSI” a Tool for Everyone? Most people CAN’T imagine to “design original LSIs” Too expensive, Too complicated, No Experiences Most people simply consider to buy LSI MCU, Sensors, … Lots Realized Restrictions in Thinking: Using Exsisting LSI Everyone use Kinect, few can invent Kinect Losing Chance of Innovation
  • 10. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ What Required for “LSI as Tool”? CAD Tool Too Expensive Commercial Tools Too Complicated CAD System Fabrication Service Too Expensive, Too Long TAT (several months) Strict NDA s User Community Specialists who know not only “How to design”, but also “What to use” LSIs.
  • 11. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ MakeLSI: - Outline Know-how Sharing Freeware CAD Basic Knowledges Community 100+ in ML LSI Specialists & Non-specialists NDA-Free Design & Fabrication http://ifdl.jp/make_lsi
  • 12. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ MakeLSI: - Design Rule 1um-grid rule Can “satisfy” some fab’s design rules PTS 0.6um (JP) HHGrace0.35um (CN) … Independent on fab’s “limit” of design rule = NDA-free https://github.com/makelsi/OpenRule1um
  • 13. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ MakeLSI: - Libraries Standard Logic Cells Analog Components (under development) Distributed development by contributors
  • 14. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ MakeLSI: - Tools Layout Tool: Glade, K-Layout Circuit Simulator: LTspice / Spice3 Logic Synthesize & P&R: Alliance, Qflow *Open Source Softwares RISC-V processor (subset)
  • 15. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ MakeLSI: - Fabrication Commercial Fab’s shuttle Phenitec Semiconductors (JP) HH Grace (CN) : (will try soon) (Future) minimalfab by AIST, Japan 0.5in wafer, Mask-less exposure, 1week TAT Order custom LSI like PCB…!
  • 16. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ MakeLSI: - 1st Trial in 2015 8 Contributors Free fee, Open & Share Contents 11 Circuits Kilburn Adder Guitar Effector 1bit CPU 4-16 Decoder Ring VCO, LC-VCO, BGR Wide Variety, Passionate Activity Saw Oscillator OPA MOSFET TEGs Timer“555”
  • 17. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ MakeLSI: - 2nd Trial in 2016 11 Contributors Free fee, Open & Share Contents 12 Circuits ALU Guitar Effector RingOSC PSG Delta-sigma ADC Wide Variety, Passionate Activity R-2R DAC NRZI Codec GoldCoder Inverter, FA Timer“555”
  • 18. 2020/3/13 Interface Device Laboratory, Kanazawa University http://ifdl.jp/ Summary Effect of Moore’s Law High Performance & Wide Spread of Applications Drastic Increase of Cost and Requirement of NDA Technology MUST become a Tool for Everyone Wide application, Seed of innovation NDA-free & Open Source LSI Development Open framework, NDA-Free Rapid development & improvement in IP