PISTON. a production test platform for high-end imagers. Public Information

Transcription

1 PISTON a production test platform for high-end imagers

2 PISTON Introduction 2 10/7/2015

3 Introduction P(retty) I(mage) S(ensor) T(ester) (from) ON (Semi) PISTON = test head + manipulator + PC + SW ATE production test platform for Sort + Final test Full sensor portfolio + roadmap, high & low volumes 3 10/7/2015

4 Concept Passive loadboards for all (current) products Ample tester resources (IO, power, speed, ) Fix flaws of previous platform and commercial testers: Fully calibrated Support custom interface protocols Support pintest on all digital IOs (qty. 680) Support high frequencies (500 MHz SERDES) Uses industry standard system interfaces Modular for future/partial upgrades/expansion Proprietary customized version of STS from NI Leveraging PXI/PXIe/PCIe/cPCI standards 4 10/7/2015

5 Motivation No tester exists that could test our high-end imagers Custom designs have custom test requirements Open platform programming flexibility Single tester platform for full portfolio Custom product specifications, Custom test volumes: Low Med High Covering: slow-to-high speed, low-to-high-end, low-to-high volume, small-to-waferscale, 2D-to-linear, low-to high power, low-to-high pincount, low-to-high resolution TCO: Total Cost of Ownership Differentiation from competition Test quality Test cost 5 10/7/2015

6 DUT Resources 6 10/7/2015

7 Overview Per Test head: High power PSU channels High precision SMU channels High precisions DAC channels High precisions ADC channels PISTON FGs with frame buffer memory GPIO/Synchro board Light source system: internal or external Organized around PXIe chassis 7 10/7/2015

8 PISTON Framegrabber (FG) digital + PE boards IO bank: diff pairs or Single Ended (SE) IO Regional clocking Per pin configurable IOs Comparators for dynamic VOH/VOL checking PPMU allows for I-V curve tracing Terminated IO standards (50R impedance) Dual use: Timing engine + Frame grabbing RocketIO pins for multi-gigabit links DMA access to host controller or companion FG s Dedicated USB connection for in-system debug It s a digital ATE test module - But we use it as FG 8 10/7/2015

9 Genral Purpose IO (GPIO) Board Plugs on same digital board Functionality: 3V3 GPIO pins for loadboard (relays, ) Synchro board control (app clock and sync trigger) System monitoring/management: I2C + SPI Lightsource triggering Keysight triggering/control PE board power control Dedicated low jitter clocks for DUT Can be synchronized with FG 9 10/7/2015

10 Light source system Integrated inside test head with lock detect Light source head Motorized diaphragm: 1/f# Sealed for overtemp Internal and external LS 10 10/7/2015

11 Pogo Tower DUT resources available through pogo tower 5848 pins 11 10/7/2015

12 Software 12 10/7/2015

13 Software 13 10/7/2015

14 Software Based on C++, Python Fully 64-bit Interactive scripting for development/debug STDF data logging Gamma Hawk GUI Gamma Hawk GUI: Developer mode 14 10/7/2015

15 Miscellaneous System health monitoring system System voltages System temperatures (+ 400 locations) Moisture sensors Accelerometer (remote tilt detection) Fan speed control Interrupt based tester operation + 315,000 calibrated parameters, ISO compliant External AC connections for t&m equipment JTAG, USB, Ethernet, generic SPI, LS control on IO panel System mgmt: I2C bus for digital ID and HW rev, self-test CE marked 15 10/7/2015

16 Conclusions 16 10/7/2015

17 Conclusion Compared to Commercial ATE testers, PISTON is: Smarter: Interrupt based operation, health monitoring Open HW platform, calibration, self test Open SW platform, pipelined measure/process, DMA over PCIe Proprietary to ON Semiconductor More Efficient: Lower capital cost (at least less than 50%) Smaller footprint higher BW, higher processing power Full flexibility, modular, extendible proprietary digital 1Gbps supporting high-end imagers Integrated light source system 17 10/7/2015

18 Thank you!? Questions? 18 10/7/2015