APD-TIA coaxial type photoelectric assembly

A photoelectric component, coaxial type technology, applied in the field of optical communication, can solve the problems of large parasitic resistance and capacitance, affecting the sensitivity of photoelectric components, etc., to achieve the effect of reducing parasitic resistance and inductance, and improving sensitivity

Inactive Publication Date: 2016-06-15
DONGGUAN MENTECH OPTICAL & MAGNETIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing APD-TIA coaxial photoelectric components are composed of common ball lenses, common stems, TIA (trans-impedance amplifier, transimpedance amplifier), APD (Avalanche PhotoDiode, avalanche photodiode) and other components. Gold wires are used to

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Examples

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Example Embodiment

[0033] The embodiment of the present invention provides an APD-TIA coaxial photoelectric component for improving the sensitivity of the photoelectric component.

[0034] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0035] The technical solutions of the present invention will be further described below in conjunction with the drawings and specific implementations.

[003...

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Abstract

The invention discloses an APD-TIA coaxial type photoelectric assembly, and the sensitivity of the photoelectric assembly is improved. A trans-impedance amplifier, an avalanche diode and a diode filtering capacitor are arranged on a tube base of the APD-TIA coaxial type photoelectric assembly. Electric appliance elements are mutually electrically connected through gold leads, wherein the gold leads having critical influences on the performance include PD+ wires, signal wires and ground wires, the horizontal length of each PD+ wire is smaller than or equal to 0.3 mm, the camber height of each PD+ wire is smaller than or equal to 0.15 mm, the horizontal length of each signal wire is smaller than or equal to 1 mm, the camber height of each signal wire is smaller than or equal to 0.2 mm, the horizontal length of each ground wire is smaller than or equal to 0.4 mm, and the camber height of each ground wire is smaller than or equal to 0.15 mm. According to the invention, the structures of the gold leads at sensitive positions are optimized, and that is to say, the lengths and the camber heights of the gold leads are limited in a quantified manner, so that the parasitic resistance and the inductance of the gold leads are better lowered.

Description

Technical field [0001] The present invention relates to the field of optical communication, in particular to an APD-TIA coaxial photoelectric component. Background technique [0002] High-speed APD-TIA coaxial optoelectronic components are widely used in the optical communication industry, such as passive optical networks, optical synchronous digital transmission networks, Ethernet, optical fiber transmission channels or other long-distance transmission systems, with a transmission rate of up to 10Gb / s. The existing APD-TIA coaxial optoelectronic components are composed of common ball lenses, common tube holders, TIA (trans-impedance amplifier), APD (Avalanche PhotoDiode, avalanche photodiode) and other components. Gold wire leads are used to realize electrical connection, but in the prior art, the radian and horizontal length of the gold wire leads are not strictly controlled, resulting in excessive parasitic resistance and capacitance, which greatly affects the sensitivity of t...

Claims

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Application Information

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IPC IPC(8): H01L25/00H01L21/50H01L21/60
CPCH01L24/47H01L25/00H01L21/50H01L2224/4901H01L2224/48137H01L2224/48463
Inventor 杨智黄劲威
Owner DONGGUAN MENTECH OPTICAL & MAGNETIC
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