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Laser diode device

A technology of laser diodes and electrode parts, which is applied to laser components, semiconductor lasers, electrical components, etc., can solve the problems of inability to improve the recognition speed and effect, slow down the driving speed of laser diodes, and loss of signal strength, etc., to achieve enhanced convenience The effect of reducing the distance of traces and reducing the surface area

Active Publication Date: 2020-11-27
SHANGHAI ORIENT CHIP TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the longer the trace used to transmit the driving signal, the driving signal will cause loss and decrease in signal strength due to the electrical properties (such as impedance) of the trace itself, resulting in a slowdown in the driving speed of the laser diode, which cannot be improved. The speed and effect of recognition

Method used

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  • Laser diode device
  • Laser diode device
  • Laser diode device

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Embodiment Construction

[0028] In order to fully understand the purpose, features and effects of the present invention, through the following specific embodiments, and in conjunction with the accompanying drawings, the present invention is described in detail, as follows:

[0029] Please also refer to figure 1 , figure 2 as well as image 3 , figure 1 It is a schematic diagram of a packaging structure of a laser diode device 1000 according to an embodiment of the present invention, which includes a laser diode module 100 and a driver chip module 200, figure 2 is a schematic diagram of a separate structure of a laser diode module 100 according to an embodiment of the present invention, image 3 Then it is a schematic diagram of the separate structure of the driver chip module 200 according to the embodiment of the present invention.

[0030] The laser diode module 100 includes a first carrier for accommodating and carrying a laser diode element 180 (such as a laser diode chip) and a lens 190, wh...

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Abstract

Provided is a laser diode device, which comprises a laser diode element, a lens, a first bearing member, a driving chip and a second bearing member, wherein the first bearing member is used for accommodating the laser diode element and the lens; and the second bearing member is used for accommodating the driving chip and is arranged under the first bearing member to bear the first bearing member,and is electrically connected with the first bearing member. The first bearing member and the second bearing member are directly superimposed, thereby greatly reducing wiring distance between the laser diode element and the driving chip and reducing signal loss caused since the wiring distance is too long; the surface areas of the laser diode element and the driving chip on the circuit are greatlyreduced, and wiring convenience is improved; and through the two bearing elements, the laser diode element and the driving chip are thermally and electrically isolated from each other, thereby preventing thermal energy of the laser diode element from affecting the performance of the driving chip.

Description

technical field [0001] The invention relates to a laser diode device, in particular to a laser diode device with reduced signal transmission distance. Background technique [0002] Laser diodes are widely used in fields such as reading, communication, measurement or sensing due to their advantages of linear propagation, micro-light spot, and high optical density. In recent years, they have been widely used in mobile devices (such as smart phones, Face recognition or object recognition applications in tablet computers, etc.), such as face recognition with Time of Flight (ToF) technology. The conventional laser diodes often cooperate with the driving signal generated by the driver chip to perform corresponding operations, that is, the laser diode emits light according to the received driving signal, so the driving speed of the laser diode is controlled by the received driving signal. Among them, the driving speed of the laser diode directly affects the quality of the identifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/022
CPCH01S5/0231
Inventor 不公告发明人
Owner SHANGHAI ORIENT CHIP TECH CO LTD
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