胚騰小小兔Pattern II ss

陳竹一中央大學 電機系

GroupforReliable Computing

2005.07.06

PATTERN.2

” 主角”…“豬腳”• 考生 --- 不會吧 ?! 是被折磨的對象。 --- 是的 ! 就是他

• 高中老師 --- 不會吧 ?! 跟著著急的對象。 --- 是的 ! 就是他• 家長 --- 不會吧 ?! 也是跟著著急的對象。 --- 是的 ! 就是他• 監考老師 --- 不會吧 ?! 數完考卷，領了錢就沒他事了。 --- 是的 ! 就是他• 命題委員 --- 不會吧 ?! 出完考卷，領了錢就沒他事了。 --- 是的 ! 就是他• 閱卷電腦 --- 不會吧 ?! 它又不會講話，會是它嗎 ? --- 是的 ! 就是它• 閱卷老師 --- 不會吧 ?! 又不知道”他”是誰 ? --- 是的 ! 就是他• 消防隊員 --- 不會吧 ?!” 他”沒被考。 --- 是的 ! 就是他• 路人甲 --- 不會吧 ?! 干他何關。 --- 是的 ! 就是他• 賣考古題的 --- 不會吧 ?! --- 是的 ! 就是他

• 最後您選定了誰 ? _________ 為何 ? _______________________________• ( 有沒有不在以上的對象 ?)

PATTERN.3

契子

"Made in Germany"從

談起

商標 + 製造地

百靈果汁機打出的果汁又香又甜 !

PATTERN.4

Outline• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?

• Where to Look for “Testing”?

• Test Errors

• The Challenges in Testing

• The Most Important in Testing -- 胚騰• Summary

PATTERN.5

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?

• Where to Look for “Testing”?

• Test Errors

• The Challenges in Testing

• The Most Important in Testing -- 胚騰• Summary

PATTERN.6

• Labeling

• Feeling

• Marketing

…

What Is the Difference betweenthe 3.2 and 3.0 GHz CPU’s?

?

3.0G3.2G

PATTERN.7

• By different designs- Groups, Spec’s …, or

• By different factories, or

• By testing (speed-sort)

How Are They Produced?

PATTERN.8

一樣米養百樣人P4-3.2G Hz P4-3.0G Hz

PATTERN.9

Speed Sort: Multiple Test Spec’s

Better

Spec-1 Spec-2

Good Bad

313 ps(3.2 GHz)

333 ps(3.0 GHz)

PATTERN.10

The Cost of Poor Testing

• Intel sales 100M cpu per year

• $(cpu@3.6G – cpu@3.4G) = NT$ 5,000

• Revenue loss = NT$ 500,000,000,000

PATTERN.11

好的產品 :不僅是要有好的 設計、製造

更需要好的 測試

PATTERN.12

IC Signed-Off by Test ManagerIn the near future

PATTERN.13

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow• What Is Testing?

• Where to Look for “Testing”?

• Test Errors

• The Challenges in Testing

• The Most Important in Testing -- 胚騰• Summary

PATTERN.14

IC Development Flow

Design

Layout

Process

WaferAccept

Test

Circuit Probe

Package

Final Test 1

Burn-In

Final Test 2

Sampling Test

Shipment

Wafer Test

PATTERN.15

Test Applications and Objects

CP1

Package

Final Test 1

Burn-In

Final Test 2

Final Test 3

Gloss Test (open/short) Function TestRedundancy AnalysisInkingLaser Trimming

CP2

Temperature = 25˚C

Temperature = 80~90˚C, At-speed

Temperature = 0˚C

PATTERN.16

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?• Where to Look for “Testing”?

• Test Errors

• The Challenges in Testing

• The Most Important in Testing -- 胚騰• Summary

PATTERN.17

What Is Testing?

•測試 – 是一個反覆 /循環的評估 /決策過程， 用來衡量標的物的能力相對於選定規格的適切性。

PATTERN.18

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?

• Where to Look for “Testing”?

• Test Errors

• The Challenges in Testing

• The Most Important in Testing -- 胚騰• Summary

Everywhere!!!

PATTERN.19

IC Validation, Verification and Test Flow

Spec’s

Design

Manufacturing

Wafer Test

Burn-In

Final Test

Shipment

Customer’sNeed

Quality Control (QC)

Validation

Verification

SPCOn-site monitoring

WAT

On-site monitoring:

Wafer Acceptance Test:

Process parameters

Device parametersTesting:

. Chip function

.. Electrical parameters

Quality Assurance(QA)

PATTERN.20

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?

• Where to Look for “Testing”?

• Test Errors • The Challenges in Testing

• The Most Important in Testing -- 胚騰• Summary

PATTERN.21

IC Development

Design Manufacturing Test

Idea ICD M T

PATTERN.22

Perfect Testing

MGood

Bad

TPass

Fail

Y = G/N

N

@True yield

Yt = P/N@Test yield

Y = Yt

• Errors (systematic & random) may be introduced.

PATTERN.23

Test Classification with Errors

M

N

Good

Bad

※ True yield: Y

• Manufacturing IC produced to be GOOD or BAD

TPass

Fail

※ Test yield: Yt

• Testing IC distinguished to be PASS or FAIL

Producer's risk:

Killing error

Consumer's risk:

Missing error

PATTERN.24

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?

• Where to Look for “Testing”?

• Test Errors

• The Challenges in Testing• The Most Important in Testing -- 胚騰• Summary

PATTERN.25

Home Run Derby

Manufacturing

CHIP Testing

Design

?

IC Development Project

Vs.

PATTERN.26

Hierarchy of Multi-Level Parameters

Process Parameters Diffusion, Oxidation, Metalization, …

Design Parameters Vth, Cox, µ, …

Circuit Parameters Delay, Power dissipationGain, Logic function, Waveform…

Characterization ParametersDelay, Power dissipationGain, Logic function, Waveform …

Test ParametersDelay, Power dissipationGain, Logic function, Waveform …

11MM

1010

11

100100

11KK

PATTERN.27

Multi-Thread Diagram

• One parameter a degree of freedom

ComponentsTemp

Mismatch

Bias, Offset

Signal integrity

PATTERN.28

Testing in Multi-Thread Diagram

=?=> To find

• Inscribed polygon -> No missing, more killing

•• Circumscribed polygon -> No killing, more missing

!!!??? But,……

Killing

Missing

Test point 1

Test point 2

Test point 4

Test point 3

PATTERN.29

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?

• Where to Look for “Testing”?

• Test Errors

• The Challenges in Testing

• The Most Important in Testing -- 胚騰

• Summary

PATTERN.30

胚騰 良率不覺好，品質有煩惱，測試復測試，胚騰知多少。

由 pattern 可知。

！

Pattern 可使之 !

?

Pattern 何來 ?

PATTERN.31

Outline

• What Does Testing Play in IC Industry?

◎ 一樣米養百樣人• IC Development Flow

• What Is Testing?

• Where to Look for “Testing”?

• Test Errors

◎大隊接力選拔• The Challenges in Testing

• The Most Important in Testing -- 胚騰• Summary

PATTERN.32

” 主角”…“豬腳”• 考生 --- 不會吧 ?! 是被折磨的對象。 --- 是的 ! 就是他

• 高中老師 --- 不會吧 ?! 跟著著急的對象。 --- 是的 ! 就是他• 家長 --- 不會吧 ?! 也是跟著著急的對象。 --- 是的 ! 就是他• 監考老師 --- 不會吧 ?! 數完考卷，領了錢就沒他事了。 --- 是的 ! 就是他• 命題委員 --- 不會吧 ?! 出完考卷，領了錢就沒他事了。 --- 是的 ! 就是他• 閱卷電腦 --- 不會吧 ?! 它又不會講話，會是它嗎 ? --- 是的 ! 就是它• 閱卷老師 --- 不會吧 ?! 又不知道”他”是誰 ? --- 是的 ! 就是他• 消防隊員 --- 不會吧 ?!” 他”沒被考。 --- 是的 ! 就是他• 路人甲 --- 不會吧 ?! 干他何關。 --- 是的 ! 就是他• 賣考古題的 --- 不會吧 ?! --- 是的 ! 就是他

• 最後您選定了誰 ? _________ 為何 ? _______________________________• ( 有沒有不在以上的對象 ?)

PATTERN.33

理性 vs. 感性• 情感上， pattern 是測愈多愈好；

• 理性上，若不知道有多好，那測再多也沒用。

PATTERN.34

理性 !感性 !