Satoshi Takaya

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OBJECTIVES With increasing global interest in intentional food contamination, expert meetings have been held by the G8, while the U.S. government has proposed policies for preventing food terrorism and intentional contamination. However, Japan has no food defense policy, and some food companies are concerned about an impending terrorism and contamination(More)
A three dimensional (3D) chip stack featuring a 4096-bit wide I/O demonstrator incorporates an in-place waveform capturer on an intermediate interposer within the stack. The capturer includes probing channels on paths of signaling as well as in power delivery and collects analog waveforms for diagnosing circuits within 3D integration. The collection of(More)
A silicon physically unclonable function (PUF) using ring oscillators (ROs) has the advantage of easy application in both an application specific integrated circuit (ASIC) and a field-programmable gate array (FPGA). Here, we provide a RO-PUF using the initial waveform of the ROs based on 65 nm CMOS technology. Compared with the conventional RO-PUF, the(More)