Stmicroelectronics S.a.

Stmicroelectronics (crolles 2) Sas

Stmicroelectronics (canada), Inc.

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Commissariat À L'énergie Atomique Et Aux Énergies Alternatives

Stmicroelectronics (rousset) Sas

Sébastien Jouan

Salim Boutami

Michel Marty

Laurent Frey

Axel Crocherie

Jean-Luc Huguenin

An integrated image sensor may include adjacent pixels, with each pixel including an active semiconductor region including a photodiode, an antireflection layer disposed above the photodiode, a dielectric region disposed above the antireflection layer, an optical filter disposed above the dielectric region, and a diffraction grating disposed in the antireflection layer. The diffraction grating includes an array of pads.

Image sensor with reduced spectral and optical crosstalk and method for making the image sensor

An integrated image sensor may include adjacent pixels, with each pixel including an active semiconductor region including a photodiode, an antireflection layer above the photodiode, a dielectric region above the antireflection layer and an optical filter to pass incident luminous radiation having a given wavelength. The antireflection layer may include an array of pads mutually separated by a dielectric material of the dielectric region. The array may be configured to allow simultaneous transmission of the incident luminous radiation and a diffraction of the incident luminous radiation producing diffracted radiations which have wavelengths below that of the incident radiation, and are attenuated with respect to the incident radiation.

A method for forming a buried mirror in a semiconductor component includes the steps of forming a structure comprising a semiconductor layer laid on an insulating layer covering a substrate; forming one or several openings in the semiconductor layer emerging at the surface of the insulating layer; eliminating a portion of the insulating layer, whereby a recess is formed; forming a second thin insulating layer against the wall of the recess; and forming a metal layer in the recess against the second insulating layer.

Semiconductor component comprising a buried mirror

Growing community of inventors

Crolles, France

Sébastien Jouan