Multi-DUT Smartphone Manufacturing Test

Transcription

1 Multi-DUT Smartphone Manufacturing Test Parallel Calibration and Verification 2012 LitePoint Corp LitePoint, A Teradyne Company. All rights reserved.

2 Cellular Is Now Open to Everyone Little differentiation on features and dfunction mostly price In the past, vertical integration High entry barrier Droid-COM lowers entry barrier and reduces development cycle 2012 LitePoint Corp. 86

3 Smartphone Growth is Driving the Mobile Industry B total cellular units in >600M Smartphone shipments expected (almost 50% of total units) - Represents almost 25% CAGR , LitePoint Corp. Source: InStat Dec

4 Product Complexity is Increasing More Testing is Required Cellular 2G/ 3G/ LTE TDD / TD-SCDMA RF Interfaces Cellular WiFi Navigation Dual-band ac MIMO GPS / GLONASS Compass / Galileo GPS Bluetooth WiFi Diversity MIMO Other Connectivity Bluetooth LE NFC ad (?) 2012 LitePoint Corp. 88

5 New Technologies Drive Test Cost Margin At the same time, prices of smartphones are coming down to reach mainstream global consumers Shrinking margins Test Cost Innovation is required to reduce test cost Mobile Phone Technology Generations 2012 LitePoint Corp. 89

6 How to deal with Increasing Complexity of next generation phone? Limit testing? - Risks lower quality Buy more testers? - Dramatically increases costs A new test philosophy? - Increase efficiency of test cell 2012 LitePoint Corp. 90

7 Traditional solution Single-DUT output: 1X 25 UPH 25 UPH 25 UPH 25 UPH 2012 LitePoint Corp. 4 Test cells: 100 Units per hour 91

8 Why Multi-DUT? Parallel Test Improves Test Cell Throughput Four-DUT output: 3X ½ the required test cells 50% more throughput 75 UPH 75 UPH 75 UPH 75 UPH 2012 LitePoint Corp. 4Test cells: 300 Units per hour 92

9 Why Multi-DUT? Test Cell Reducing cost-of-test: - Fewer test cells, operators, floor space, test t fixtures, PCs, Increasing the throughput of the test cell CapEx OpEx Increasing the efficiency of test cell resources Optimize capital investment for large cost savings 75 UPH 75 UPH 2 Test cells: 150 Units per hour 2012 LitePoint Corp. 93

10 How Much Is Throughput Worth? The mobile test cell is becoming dominated by operating cost Capital cost tends to decrease year-over-year Labor cost tends to increase year-over-year y Manufacturing Test Cell Increasing the test cell efficiency (units per test cell per year) reduces cost Key metric: throughput per test cell 2012 LitePoint Corp. 94

11 Multi-DUT Testing Considerations Multi-DUT testing yields large benefits in cost and efficiency, but presents some potential challenges: Multi-DUT Challenges: Increased complexity of test fixture Possibilities for device cross talk If 1 DUT fails, does it cause others to fail? Increased solution development time Increased amount of data to process and analyze 2012 LitePoint Corp. 95

12 Multi-DUT Test Fixture Considerations Increasing fixture complexity Who manages calibration? How to control switching? 2012 LitePoint Corp. Robust for production? How to handle retest & failures? Noise and DUT crosstalk? 96

13 Multi-DUT Test Considerations Integrated multi-dut signal routing Automatic management of fixture loss calibration per DUT per path Synchronous sequencing of DUTs eliminates DUT-to-DUT interaction Multi-threaded signal processing automatically managed by the tester 2012 LitePoint Corp. 97

14 Test Program Development Considerations Turnkey non-signaling solutions enable fastest production ramp 2012 LitePoint Corp. Optimal Solution: - Built-in non-signaling support for cellular chipsets - Turnkey DUT Control for multi-dut test - Deliver test solutions in days instead of weeks or months - Make multi-dut like single-dut 98

15 LitePoint Multi-DUT Cellular Test Solutions All Challenges can be solved by IQxstream + IQVector Turnkey Solution Multi-DUT Challenges: Solution Increased complexity of test fixture Possibilities for device cross talk If 1 DUT fails, does it cause others to fail? Increased solution development time Increased amount of data to process and analyze Shielding box Multi-DUT Cellular Test Solution 2012 LitePoint Corp. 99

16 LitePoint Multi-DUT Cellular Test Solutions Industry s 1st 4-DUT / 8-DUT cellular manufacturing test solution - Pioneering multi-dut test Easiest to deploy multi-dut test solution - Integrated signal routing & calibration - Native multi-dut signal processing Providing turnkey solutions non-signaling multi-dut test t made easy 2012 LitePoint Corp. 100