Panasonic announced the development of the world's

2022-09-23
  • Detail

Matsushita Electric announced that its positioning is not standard, and it has developed the world's smallest image sensor

Matsushita Electric announced that it has developed the world's smallest image sensor, with a sensing unit as thin as 2 × two μ M pixels. This 1/4 inch MOS sensor supports two million pixels and minimizes the number of transistors required per pixel without sacrificing sensitivity

in this new sensor, 0.15 μ M design method reduces about 40% of the wiring space, leaving more room for photodiodes and inaccurate speed control. In addition, each detection amplifier in the device is shared by four pixels in two rows and two columns. This means that the existing four pixels only need a detection amplifier circuit and four charge readout transistors

each detection amplifier circuit of the device has been redesigned, requiring only two transistors. The detection amplifier circuit in traditional CMOS image sensor usually needs three transistors: output transistor, reset transistor and row selection transistor. Because in this new sensor, the pulse power supply replaces the conventional direct power supply, and there is no need to use row selection transistors, in this 2018 chip, only 6 transistors are required for every 4 pixels, instead of 16 in the conventional design

Copyright © 2011 JIN SHI