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ams OSRAMが2024年年次報告書を発行

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ams OSRAM、オーストリアに新設される半導体製造施設に最高2億2700万ユーロの投資助成金についてEU委員会の承認を獲得

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フォトンカウンティングテクノロジー：医療画像処理における精密さの新時代

高精度・低線量の診断を可能にするフォトンカウンティングでの次世代CT画像処理

AS5920Mフォトンカウンティングパッケージソリューション ビデオをご覧ください

第4四半期と2024年会計年度決算の発表、2月11日火曜日

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ams OSRAMとFraunhoferの研究チームがデジタルライトでDeutscher Zukunftspreis 2024（2024年ドイツ未来賞）を受賞

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IR:6次世代赤外線LEDで高輝度赤外線チップ技術に注力   

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製品の特長

ams AS5920M Photon Counting Module

ams AS5920M Photon Counting Module

Product status: Pre-Production The AS5920M is a 72x24 pixel, four-side buttable module solution for photon counting applied for spectral computed tomography detectors. The 1728-channel proprietary Buttable System-In-Package (BSIP) integrates three AS5920 photon counting ICs as well as passive components. The BSIP allows on the top side to form electrical connections to the direct conversion CdTe or CZT sensor material, which converts each X-ray photon into charge pulses. The bottom side of the BSIP forms the digital interface to the FPGA, supply connections as well as the thermal heat dissipation to the carrier. During a CT scan, the AS5920 IC counts the X-ray photon generated charge pulses with an amplitude proportional to the energy deposited by the photon. 576-channel per AS5920 discriminates the incoming photon energy by counting the number of pulses exceeding 5 different energy thresholds. The threshold levels are adjustable by 8-bit DACs with a step size of typ. 0.7 keV/LSB, the number of comparators enabled per channel are selectable for power optimizations. Lowest power dissipation with all 5 comparators enabled is as low as typ. 0.64 mW/pixel in non-paralyzable mode having BLR enabled and typ. 0.58 mW/pixel in paralyzable mode with only static leakage compensation. A 15-bit counter register accumulates the comparator output events and transmits 14/16-bit LVDS data within an integration time of minimum 104 µs. During its maximum frame rate of 9615 Fps, the AS5920 transfers the output data via a high-speed LVDS interface to the FPGA, the device operates up to an input count rate of 250 Mcps per pixel (2 Gcps/mm²). The AS5920 has both paralyzable and non-paralyzable counting mode implemented that are selectable via SPI. In paralyzable mode, it allows for a maximum output count rate of 15 Mcps/pixel (120 Mcps/mm²) at 25 keV and exceeding 40 Mcps/pixel (>320 Mcps/mm²) in non-paralyzable mode. The signal chain of the AS5920 with its low-noise charge sensitive amplifier (CSA) and its high-speed shaper allows for lowest electronic noise of 330 electrons resulting in an ASIC-intrinsic energy resolution of the measured photon of 3.5 keV FWHM. The photon counting IC AS5920 features an on-chip voltage reference and internal temperature sensor and is embedded in the AS5920M. The AS5920M is delivered as 1728-channel, 4-side buttable module integrating three ICs in one 24.52 mm x 8.75 mm Buttable System-In-Package (BSIP). Pixel sizes of the BSIP are 341 µm x 365 µm and customizable for pixel pitch of 340 µm and above. The performance temperature range of AS5920 and AS5920M is specified from 20°C to 70°C. Gain deeper insights about Photon Counting
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ams AS5952M CT Sensor Module

ams AS5952M CT Sensor Module

Product status: Pre-Production The AS5952 is a sensor chip for 64-slice CT detectors that combines the photodiodes and the readout circuit on a single CMOS chip. This sensor solution, which includes an array of 32 x 8 photodiodes with ultra-low dark current and a 256-channel ADC side-by-side, allows the assembly of the pixel array on three adjacent edges of the device. Two AS5952 ICs can be placed in Z-direction enabling the design of CT detectors with 40 mm of Z-coverage in ISO center.The AS5952 has a sensor dimension in Z-direction of 36.125 mm with a pixel dimension of 1.130x1.002 mm². Pixel dimensions can be customized on request. The sensor can be directly assembled on a substrate using a wire bonding process for manufacturing of a CT module.Improved low dose performance can be achieved because of superior dark current of max. 1 pA due to the near zero offset voltage across the photodiode. The input-related noise is very low, a max. noise level of 0.36 fC can be reached including photodiode for an input current range of 200 nA.The max. power dissipation of 1.46 mW per channel in normal mode and 1.23 mW per channel in low power mode reduces self-heating effects and lowers the overall cost of cooling the system. An internal reference voltage and bias generator reduces the bill of material. Featuring on-chip photodiodes, the AS5952 offers a cost-optimized solution for 64-slice CT detectors.The digital data readout can be accessed via a 110 MHz LVDS interface. A SPI interface is used for device configuration such as mode of operation, input current range, selection of reference voltage and enabling the calibration mode. An integrated temperature sensor enables monitoring of the junction temperature. The AS5952 is delivered as die on foil on frame.In addition we are offering the AS5952M. This module consists of 3x AS5952 integrated circuits, which are mounted onto a substrate and connected with wire bonding protected by glob top. The interface is on the bottom side through a flex connector that accepts a standard 0.3 mm thick Flexible Printed Circuit (FPC). All required passive components are located on the bottom side of the substrate. The module is available both with and without scintillator array. Watch the product video
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ams OSRAMの詳細情報
110+
年の設計および製造の経験
約19,700人
の世界中の従業員、うち技術者が5,000人
20,000+
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25
主な研究開発拠点
13,000
件の特許取得・出願
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