March 15-18, 2015 Hilton Phoenix / Mesa Hotel Mesa, Arizona Archive Session 8

Transcription

1 Proceedings March 15-18, 2015 Hilton Phoenix / Mesa Hotel Mesa, Arizona Archive Session BiTS Workshop Image: BCFC/iStock

2 Proceedings Session 8 Morten Jensen Session Chair BiTS Workshop 2015 Schedule Solutions Day Wednesday March 18 10:30 am Looking For That Four Leaf Clover "A Test-Cell-Solution for 81GHz Automotive Radar ICs" Jason Mroczkowski, Peter Cockburn, & John Shelley - Xcerra Corporation "Universal Device Interface DUT Solutions for ATE Test" Bob Bartlett- Advantest Corporation "Where No Tester Has Gone Before" Roger Sinsheimer -Teradyne Inc.

3 Proceedings Copyright Notice The presentation(s)/paper(s) in this publication comprise the Proceedings of the 2015 BiTS Workshop. The content reflects the opinion of the authors and their respective companies. They are reproduced here as they were presented at the 2015 BiTS Workshop. This version of the papers may differ from the version that was distributed in hardcopy & softcopy form at the 2015 BiTS Workshop. The inclusion of the presentations/papers in this publication does not constitute an endorsement by BiTS Workshop or the workshop s sponsors. There is NO copyright protection claimed on the presentation content by BiTS Workshop. However, each presentation is the work of the authors and their respective companies: as such, it is strongly encouraged that any use reflect proper acknowledgement to the appropriate source. Any questions regarding the use of any materials presented should be directed to the author(s) or their companies. The BiTS logo and are trademarks of BiTS Workshop. All rights reserved.

4 Universal Device Interface DUT Solutions for ATE Bob Bartlett Advantest Corporation Conference Ready mm/dd/ BiTS Workshop March 15-18, 2015

5 Agenda Universal Device Interface (UDI) introduction UDI concepts Use Cases Tester Characterization Interfacing to Reference Boards Extending HSIO performance RFPA 18GHz extension module Harmonic measurement module Summary Universal Device Interface DUT Solutions for ATE 2

6 Universal Device Interface (UDI) Introduction UDI components are engineered to be shared across different applications Standardized interface to provide same tester look and feel to users We leverage development efforts through R&D across Advantest s installed base Extends the DUT interface in the Z axis with compatible docking and electrical interfaces Standard cable assemblies for fast interfacing Lower DUT fixture costs for RF applications Universal Device Interface 3 DUT Solutions for ATE

7 UDI concepts: Hybrid Stiffener The hybrid stiffener is fully compatible with standard V93K load boards The PCB mounting holes can be used for the assembly of evaluation boards Docking hardware, inlays and pickup points same as standard V93K stiffeners Universal Device Interface DUT Solutions for ATE 4

8 UDI concepts: Standard Channel Anti-Pogo Universal Device Interface DUT Solutions for ATE 5

9 UDI concepts: High Speed Anti-Pogo Requires the hybrid stiffener Can be connected to any pogo channel location For high performance ATE channels PS9G, PS-SL Assembly length and connector type can be customized SMA, SMP, custom Universal Device Interface DUT Solutions for ATE 6

10 Measurement of V93000 HSIO Channels Universal Device Interface DUT Solutions for ATE 7

11 Fast Interconnect to PCB s & Reference Boards Universal Device Interface DUT Solutions for ATE 8

12 Development of Active Test Fixtures Universal Device Interface DUT Solutions for ATE 9

13 Extending HSIO Signal Performance 32 Gbps 40 Gbps 32 Gbps 40 Gbps Extends standard PS-SL performance beyond 16Gbps Performance to 51Gbps Typical signal performance fs rms jitter - <10 ps transition times (20%-80%) Universal Device Interface DUT Solutions for ATE 10

14 UDI Board for RFPA Fixtures UDI Stiffener used with PA evaluation boards in an engineering environment for fast bring-up of manufacturers reference boards UDI production solution for HVM shortens TTM and lowers fixture costs UDI in Production UDI in Engineering Universal Device Interface DUT Solutions for ATE 11

15 18GHz Solution: Overview A compact external synthesizer is used as an LO to bring signals up to 18GHz down to a frequency range that is measureable by the native V93000 PSRF tester With FE24 card and PSRF 8GHz measurement solution this 18GHz module extends measurements to 18GHz We can measure CW or modulated signals to 18GHz Our prototype was validated with connectorized components 12

16 18GHz Solution: Synthesizer Foundation of this solution is Hittite HMC-C070 synthesizer Typical output power of +21dBm Capable of driving two mixers with a 2-way power splitter (6dB loss). Connects to 10MHz BNC on test head Controlled by SPI commands from standard SmarTest UTM 13

17 18GHz Solution: Block Diagram The 18 GHz solution is an external module (load board solution) To reduce cost, one synthesizer is shared between two sites Site GHz to PSRF LPF IF RF 8-18GHz from DUT LO Mixer - Hittite HMC773 Hittite HMC-C070 Integrated Synthesizer 5.5GHz 10.5GHz, +21dBm 1:2 6 db 10MHz Reference from Tester Site 2 3.6V 6V 20V LO DC to DC GHz to PSRF IF RF LPF Mixer - Hittite HMC773 SBI (3) UP5V 8-18GHz from DUT 14

18 18GHz Solution: Performance Synth set to 10.5GHz, RF signal power (from Agilent E8257D sig gen) varied with freq. and power (top axis) Very linear over power range -30dBm to -90dBm Measurable to -90dBm with very good linearity Applied RF Signal vs. Measured RF Power LNA Path Direct Path GHz 8 GHz 9 GHz 10 GHz 11 GHz 12 GHz 13 GHz 14 GHz 15 GHz 16 GHz

19 18GHz Solution: Performance Transfer Curves Top Axis: Applied Power (dbm) Blue: Measured Power (dbm) Red: Conversion Loss (db) 7 GHz 12 GHz 16 GHz 16

20 18GHz Solution: Calibration Advantest will build these as hermetically sealed modules with factory calibration on an EEPROM with no further calibration needed Reduce burden of calibration for the end user Has slightly reduced accuracy compared to user-based calibration Eliminates need to have power meters and rack equipment on test floor Performance results indicate that calibration will be relatively easy to implement due to linearity of conversion loss The power supply and RF module are built to attach as a UDI anti-pogo assembly on one standard tester utility block 17

21 18GHz Solution: DC Supply Overview The V V Utility supply is used to generate three (3) separate voltages to power the synthesizer used with the 18GHz measurement module To keep tester costs down, we want to avoid using DPS resources Required power Synthesizer pin VD1, Synthesizer pin VD2, Synthesizer pin VD3, This is accomplished with 3 circuits All connected to the V93000 UP5V supplies UP5V powers up when DUT board is docked All on same power supply UDI module 18

22 18GHz Solution: DC Supply Block Diagram L UP5V UGND C +5V SW TI LMR10510 DC Buck Switcher SHDN FB L GND R R C C Murata BNX EMI Filter UGND GND R +3.6V@125mA to VD1 of HMC-C070 GND UP5V UGND C +5V SW TI LMR62014 DC Boost Switcher SHDN FB L GND R R C C Murata BNX EMI Filter UGND GND R +20V@100mA to VD2 of HMC-C070 GND UP5V UGND C +5V SW TI LMR62421 DC Boost Switcher SHDN FB GND R R C C Murata BNX EMI Filter UGND GND R +6.5V@375mA to VD3 of HMC-C070 GND 19

23 Isolation of 10MHz Reference 10MHz Reference Output from Tester(BNC Connector) DC Block Transformer 10MHz Reference To Synthesizer Synthesizer output at 9GHz Without DC block/transformer With DC block/transformer 20

24 18GHz Solution: DC Supply Learnings HMC-C070 contains LT1764 LDOs on 3.6V and 6.5V inputs Hittite did this allow the user to apply a simple 12V to both inputs Problem is that this would lead to additional heat dissipation HMC-C070 already generates a lot of heat Approach we took was to have regulation and conversion on the separate DC supply board and supply exactly the required voltages to the HMC-C070 Grounding Multiple signal and power grounds: UGND, RF-GND, D-GND, PS-GND, 10MHz REFOUT BNC shield (tester chassis GND) RF-GND, D-GND and PS-GND s are connected at HMC-C070 10MHz REFOUT is isolated from the rest with DC block transformer We can produce a UDI power supply and 18GHz extension module for less than $3k 21

25 RF Harmonic Measurement (HM) Module RFPA Harmonic Filtering Built for dual site LTE/CDMA high and low band RFPA Applications Target LTE, CDMA, ac Up to 18GHz 22

26 RFPA HM Low Band Universal Device Interface DUT Solutions for ATE 23

27 LTE RFPA UDI and HM Module Universal Device Interface DUT Solutions for ATE 24

28 Summary UDI Lowers cost of DUT fixtures Extends performance of standard ATE instruments UDI allows rapid prototyping and fast bring up for HSIO, RF and complex MX reference boards Compatible with our standard docking and electrical interfaces 18GHz RF Solution Available in 2015 as a packaged UDI module solution We also do a DUT board based connectorized version Key learnings from building the DC supply for the 18GHz solution Base for RF module, EEPROM calibration support, ground management, UDI base Results indicate that calibration will be relatively easy to implement due to linearity of conversion loss Harmonic Measurement (HM) module One board eliminates four (4) wideband directional couplers HM has same performance at <10% of the cost of traditional couplers Working on UDI anti-pogo version for 4 sites Evaluating higher frequency versions for additional applications Higher power, modulated signals, fast signal switching All Rights Reserved - ADVANTEST CORPORATION 25