Verification of an image sensor stucture to achieve 1 Gfps

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630155
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: Ritsumeikan University
• Principal Investigator: ETOH TAKEHARU 立命館大学, 総合科学技術研究機構, 教授 (20088412)
• Co-Investigator(Renkei-kenkyūsha): DAO Vu Truong Son 立命館大学, 総合科学技術研究機構, ポストドクトラルフェロー (40648028) ; TAKEHARA Kohsei 近畿大学, 理工学部, 教授 (50216933)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: イメージセンサ / 超高速 / 接合型

Outline of Final Research Achievements

The target is development of an image sensor with the highest frame rate of 1 Gfps and the photon detection sensitivity. The achievements in the two-year project period are as follows: (1) Device structure: a 3D-stacked image sensor with a sensor chip and a driver chip both with innovative structures, (2) Simulation results on the highest frame rate: 6 Gfps (the frame interval of 160 ps) can be achieved, (3) Evaluation of the test devices: the driver chip achieved the frame interval of 1 ns (the frame rate of 1 Gfps); the sensor chip was damaged in the process, which is now under re-process. Since the sensor chip is made with a CCD structure, it can achieve several-photon detectable sensitivity with deep cooling.

Free Research Field

工学