Probo No.41 Details
Technical Paper
Power Integrity Control of ATE for Emulating Power Supply Fluctuations on Customer Environment
| Author | Technology Development Group 5th R&D Department FT Technology R&D Section 2 Takashi Kusaka others |
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| Summary | This article proposes a power integrity control technique for dynamically controlling power supply voltage fluctuations for a device under test (DUT). The proposed method controls the power supply voltage on an automatic test equipment (ATE) system in a feed-forward manner by supplying a compensation current into the power supply line based on the power supply voltage waveform difference between the ATE and the customer operational environment of the DUT. A method is described for calculating the compensation current from an impulse response of the device power supply network in the ATE and a target power supply voltage waveform. Experimental results with a prototype circuit are demonstrated to confirm the proposed concept. Limitations and applications of the proposed method are also discussed. |
| Key Words | Not Specified |
Real-time photoacoustic imaging system for clinical burn diagnosis
| Author | New Concept Product STeLS Project Taiichiro Ida others |
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| Summary | We have developed a real-time (8~30 fps) photoacoustic (PA) imaging system with a linear-array transducer for burn diagnosis. In this system, PA signals originating from blood in the noninjured tissue layer located under the injured tissue layer are detected. The phantom study showed that thin light absorbers embedded in the tissue-mimicking scattering medium at depths of > 3 mm can be imaged with high contrast. The diagnostic experiments using rat burn models showed good agreements between the injury depths (zones of stasis) indicated by PA imaging and those by histological analysis. These results demonstrate the potential usefulness of the present system for clinical burn diagnosis. |
| Key Words | photoacoustic imaging, real-time, burn diagnosis, zone of stasis, phantom, rat burn model |
Low Cost Test Method for RF Communication Devices Using Equivalent EVM Approach
| Author | Technology Development Group 10th R&D Department Algorithm R&D Section Koji Asami others |
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| Summary | Since recent mobile terminals, i.e. smart phones and tablet PCs, support multiple communication standards, the tests for the standards installed on the terminals are required for the wireless communication LSIs. Among the various standardized tests, an Error Vector Magnitude (EVM) especially requires a complex standardized waveform and signal analysis algorithm, and this causes a long test development time and the test time itself. In this paper, we propose an Equivalent EVM test method, which does not require any standardized waveforms but a simple waveform. The EVMs for multiple communication standards can be calculated by a unique algorithm, which uses a single measurement data. Since it performs a channel correction particular to each standard, the EVM values equal the standardized measurement results. The validity of this method is confirmed using an actual wireless transceiver on the T2000. |
| Key Words | Not Specified |
A slim column cell of 12nm resolution for wider application of E-beam lithography
| Author | Nanotechnology Business Division Akio Yamada others |
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| Summary | The authors designed novel electron beam slim column cells that have the outer diameters of 60mm and 40mm in width for an Ebeam exposure of patterns down to 12nm and below. The column has maximum magnetic flux density of less than 2.2Tesla in the pole-piece of objective lens. No magnetic saturation occurs in the lens. The 12-88% blur at shaped beam edges through the column is better than 12nm to expose 12nm 1:1 LS patterns. Calorific power by lens coil of the column is smaller than 200watt. This slim column cell of high resolution and small size will provide various types of electron beam exposure systems with single or multiple exposure columns. |
| Key Words | Not Specified |
High aspect wiring by the inkjet
| Author | Advantest Laboratories Co., Ltd. Takeshi Tanaka others |
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| Summary | In order to draw a thin line using an ink-jet method, it is necessary to control a spread caused by wettability of base material after impact. In this study,by modeling the state of the actual drawing using a thermal fluid analysis by the finite element method, it was possible to understand the operation of the spread of the ink. It caused possible to derive important temperature conditions to achieve the thin line drawn by using a laser-assisted method by it. |
| Key Words | Not Specified |
Technical Description
Test technology of CMOS image sensor device
| Author | Software Development Group 2nd Software Department Hiroshi Nagasawa |
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| Summary | Recently, the CMOS image sensor devices are producing more pixels and higher frame rates for their image data along with changes in the marketplace. With that, the specifications for the device output interface are multifaceted. To cope with this change, we have developed the T2000 3Gbps CMOS Image Capture Module (3GICAP module) which allows reconfiguration of the image data protocol conversion block even after the tester is shipped and 3GICAP Module Software, which allows product updates and support of the new standard. |
| Key Words | Not Specified |
Application
Multi-Domain Test - A New Test Strategy to Reduce the Cost of Test
| Author | System Solution Group SoC Solution COE Satoshi Nomura |
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| Summary | Multi-domain test is a novel test strategy to reduce the Cost of Test (COT). This strategy involves the uniquely enhanced multiinsertion concurrent test. This strategy can efficiently utilize tester resources in the same way as a concurrent test, but without any DFT (Design For Testability) implementation on the DUT side. It can also simplify the load board circuits associated with multi-site test. This paper describes the concept of multi-domain test, how to implement it on the V93000, and the result in an actual device application. |
| Key Words | Not Specified |
Tablet coating evaluation technique and analysis examples in the pharmaceutical industry using terahertz wave
| Author | New Concept Product Initiative TAS Project TSD Section Naomi Sato Other |
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| Summary | The Imaging technique of TAS7500IM using a reflection of terahertz electromagnetic wave is explained from hardware and software side, and analysis examples are introduced. The technique visualizes coating thickness and density distribution of the pharmaceutical tablet in 3D image. |
| Key Words | Not Specified |