公开(公告)号：US20220406954A1

公开(公告)日：2022-12-22

申请号：US17790523

申请日：2021-01-08

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Massimo Cataldo MAZZILLO ,  Tim BOESCKE ,  Wolfgang ZINKL

IPC: H01L31/107 ,  H01L31/109 ,  H01L31/118

Abstract: A semiconductor photodiode (600) comprises a top side (602) with an active surface area (604) for light entry, a bottom side (606), a bulk structure (610) made of a single semiconductor material, the bulk structure comprising a p-type layer (612a) and an n-type layer (612b), which together form the p-n junction (612) of the photodiode, wherein one of the two layers of the p-n junction is an upper p-n junction layer (612a) and the other one is a lower p-n junction layer (612b), wherein the upper p-n junction layer (612a) is located proximate to the active surface area (604), and a semiconductor light absorption layer (614), wherein the light absorption layer (614) defines the active surface area (604) and is arranged on top of the bulk structure (610), above the upper p-n junction layer (612a), and the semiconductor material of the light absorption layer (614) is different from the semiconductor material of the bulk structure (610), the light absorption layer (614) and the upper p-n junction layer (612a) thus forming a heterojunction, and the photodiode (600) further comprises a precursor layer (620) arranged between the bulk structure (610) and the light absorption layer (614), the light absorption layer (614) being grown on the precursor layer.

公开(公告)号：US20220228908A1

公开(公告)日：2022-07-21

申请号：US17614391

申请日：2020-05-27

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Andrey LYSOV ,  Tim BOESCKE

IPC: G01J1/42

Abstract: An optoelectronic sensor component for measuring light may include a first signal channel, a second signal channel, a first light-sensitive detection assembly, a second light-sensitive detection assembly, a further light-sensitive detection assembly, and an assigned further signal channel. The first signal channel may provide a first electrical signal, which represents the intensity of light incident on the sensor component. The second signal channel may provide a second electrical signal representing the intensity of the light incident on the sensor component. The first and second light-sensitive detection assemblies may generate the first and second electrical signals, respectively, and be assigned to the first and second signal channels, respectively. Both detection assemblies may have an identical spectral sensitivity and are thus redundant with respect to one another. The spectral sensitivity of both detection assemblies may have a photopic profile. The further light-sensitive detection assembly may be configured for detecting only infrared light.

公开(公告)号：US20220006433A1

公开(公告)日：2022-01-06

申请号：US17293936

申请日：2019-11-20

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Tim BOESCKE

IPC: H03F3/45 ,  H03K3/033

Abstract: A transimpedance amplifier may include a voltage-controlled operational amplifier having a non-inverting input connected to ground, an inverting input receiving a current signal to be amplified, an output coupled to the inverting input via a coupling resistor, and a power-down input (PWDN input) activated upon receipt of at least one power-down signal (PWDN) such that at least one internal current source is thereupon deactivated.

公开(公告)号：US20220353013A1

公开(公告)日：2022-11-03

申请号：US17622244

申请日：2020-05-19

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Andrey LYSOV ,  Tim BOESCKE

IPC: H04L1/00 ,  H03M13/09

Abstract: A method and an optical sensor are described herein. The optical sensor may include a communication interface for receiving data from a control unit and for transmitting data to the control unit, a storage unit with at least one register for storing data, and a CRC generator for generating a CRC checksum. The optical sensor may be configured in such a way that when data stored in the storage unit is to be transmitted to the control unit, the communication interface receives from the control unit a device address specific to the optical sensor and an address of a register in which the data to be transmitted is stored. The CRC generator may be initialized using the device address received from the communication interface and/or the register address received from the communication interface, before the CRC generator generates a CRC checksum for the data to be transmitted.