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BS Test & Measurement Techniquefor
Modern Semi-con devices & PCBAs
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QMAX a market leader in ATE for PCBA and Semiconductor industry.
04/21/23 © Qmax Test Technologies Pvt Ltd., 1997-2008 2
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QMAX Key Customer Segments DEFENCE
AEROSPACE
RAILWAYS
R&D LABS
INDUSTRIAL AUTOMATION
SEMI-CON
TELECOM
AUTOMOBILE
BIO-MEDICAL
EDUCATION
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Evolution of IC Packaging
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DIP SOIC SOJ
PGA QFP PLCC
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QFN
BGA
Evolution of IC Packaging-Cont...
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Leading to->Evolution in PCBA
Only DIP Package
Surface Mount SOIC,PLCC packages
SOIC and BGAs
Majority BGA Pkg
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Evolution summarySilicon Technology growth lead to miniaturization
of device packaging , leading to ….
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Surface mount packaging styles, leading to ….Double Sided and Multilayered PCBs , leading to ….Reduced or almost no access to test pins or pads
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The Problem ?How to test for manufacturing
defects inMass Production Hardware Design HousesPCBA Repair and Recovery
Industry
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The Solution
IEEE Std 1149.1 -JTAG Boundary Scan Standard
This allows pin level access to BS compliant devices independent of the packaging technology via a 4 wire serial interface.
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Boundary Scan Chip Architecture
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DIGITALLOGIC
TAP CONTROLLER
TAP CONTROLLER
TDI TMSTCLK
TRST* TDO
SCAN CELLS
JTAG TAP Interface Signals
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Using the Boundary Scan Path
TDI
TCK
TMS
TDO
DIGITALLOGIC
DIGITALLOGIC
DIGITALLOGIC
DIGITALLOGIC
PCB
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Boundary Scan with Multiple Chips
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JTAG-4 wire serial communication
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Boundary Scan Tests
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Scan Chain Test
Interconnect Test
Non-BS Devices Functional Test
Memory Interconnect Test
Cluster Testing
Core Logic Test ( BIST)
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Boundary Scan Tests-Cont…Digital I/o Via Edge Connector enhance test coverage
Same IEEE 1149.1 BS Test Port can be used for In-System Programming of CPLDs, FPGA & Flash Memory following the IEEE 1532 Standard.
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IEEE Std 1532 Concept
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Benefits of IEEE1532Allows configuring, programming, read back,
verify, erase of programmable devices after it has been assembled on the PCB.
Allows concurrent programming which improve significantly the time it cost to program a board with several programming devices.
Eliminate the need to have multiple vendor programming tools to program their respective devices.
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Qmax Products- Engineering Labs & Academy
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QMAX - QSCAN-QT900
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QT900-Boundary Scan Test System
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QT900 Testing BGA based PCB
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04/21/23 © Qmax Test Technologies Pvt Ltd., 1997-2008 21
QT-PXI-95 Controller and Digital Card
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QST4416-FC Linear & Mixed signal Test system
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QST4416-FC Tester Contents Standard PC with PCI or PCIe
interface Calibration Kit – Keithley 2100 USB Power Supply Modules
± 54V Analog ± 15V_Analog ± 5V_Analog +5V_ Digital + 3.3V_Digital
QST4416FC Test system – 6U, 9 slots cabinet with freely configurable Analog and Digital Instrumentations
Handler Interface Manipulator – Optional ( 3 models) GPIB interface - Optional Testing utility – QST Comprehensive
System software Application specific Load boards
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Qmax Product PackageA Complete package with Tutorial and
practical sessions from What is Boundary Scan ?
To How its used to test latest Digital IC, In-
Circuit and Out Circuit mode. ( Covering both the IEEE 1149.1 and IEEE
1532 Standards)
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Get to know the depth of Semiconductor IC Testing, out-circuit & In-circuit.
The right way to test a Populated PCB, Simple to complexAware of the various ATEs’ and the System requirements
for Board level and component level testing.Various Techniques & Technologies involved to test and
troubleshoot simple to complicated ICs on board.Art of parametric Testing.Challenges faced in today’s Testing & the need of Design
for Testability( board level & component level ) , its limitations.
Introduction to PCB Design and how it plays major role in PCBA Industry.
What do I learn from Test Engineering Course ?
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Product Application Development EngineerPCBA Industry (Design & Development,
Repair, QA )ATE Hardware Design EngineerHardware Test EngineerHardware Test Development EngineerPCB Layout & Design Engineer
Any possible Career Opportunities?
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Time for QUESTIONS
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From Rajiv VKDGM-Technology
DevelopmentQmax Test Equipments
Pvt., Ltd.,
You can visit us at www.qmaxtest.com
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