Abstract:
PURPOSE: A micro lens, a depth sensor including the same, and a method for manufacturing the micro lens are provided to prevent the performance degradation of the depth lens. CONSTITUTION: Photo-resist for forming a micro lens(110) is formed on a substrate. The photo-resist is exposed in order to form a photo-resist pattern. The viscosity of the photo-resist is 150 to 250cp. The thickness of the photo-resist is 0.1 to 9.9micrometers. The diameter of the photo-resist is 10 to 99micrometers. A photoelectric conversion element(160) creates a photo charge in response to infrared rays condensed through micro lens. A processer calculates distance of an object according to a signal outputted from a depth sensor.
Abstract:
PURPOSE: A shared pixel type image sensor is provided to improve a coupling property of a transmitting device and a floating diffusion region by symmetrically arranging a local wiring in a transmitting device which shares a floating diffusion region. CONSTITUTION: A shared pixel type image sensor includes a floating diffusion region(FD), a first photoelectric conversion region(PD1), a second photoelectric conversion region(PD2), two transmitting devices(TG1,TG2), a drive device(DG), a first contact(C1), a second contact(C2), and a local wiring(L1). The floating diffusion region is formed inside the semiconductor substrate. Two transmitting devices transmit electric charge charged in the first photoelectric conversion region and the second photoelectric conversion region to the floating diffusion region. The first contact is formed on the floating diffusion region. The second contact is formed on the drive device.
Abstract:
An image sensor and a method of fabricating the same are provided to adjust thickness of each region freely by having regions with different concentrations through epitaxial growth. An image sensor comprises a bare substrate(101), an epitaxial layer(102), and charge collecting holes(111). The epitaxial layer is formed on the bare substrate, including a first impurity region of a first conductivity(102a) and a second impurity region of second conductivity(102b). The first impurity region is formed on the bare substrate. The second impurity region is formed on the first impurity region. The charge collecting holes are formed within the epitaxial layer and doped with third impurity of second conductivity. The charge collecting holes occupy the first and second impurity regions, and have a second conductivity as a whole. The first conductivity is a P type and the second conductivity an N type.