A tube shell structure for box packaging optical devices
A tube case and device technology, applied in the field of optical modules, can solve the problems of easy desoldering and failure of FPC of flexible circuit boards, and achieve the effect of simplifying the tube case production process, simple structure and improving device reliability.
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Embodiment 1
[0040] Embodiment 1 of the present invention provides a package structure for box packaging optical devices, such as figure 2 As shown, it includes a metal shell 201, a ceramic part 202 and a conductive pin 203, specifically:
[0041] The conductive pin 203 is buried inside the ceramic part 202 to realize the electrical connection between the inside and the outside of the shell; wherein, one end of the conductive pin 203 located inside the metal shell 201 is made into a gold wire bonding pad, and the conductive pin 203 is made into a gold wire bonding pad. One end of the contact pin 203 located outside the metal shell 201 is made into an FPC pad.
[0042] Wherein, the positions between the conductive pins 203 and the through holes in the ceramic part 202 and between the metal shell 201 and the ceramic part 202 may be positioned by brazing process.
[0043] Among them, between the above-mentioned conductive pin 203 and the through hole in the ceramic part 202, and between the m...
Embodiment 2
[0053] Figure 6 Shown is a schematic diagram of the installation of the existing ceramic shell, FPC and module PCB board. Figure 6 Indicated by the dotted line frame area marked 501 in ), there are through holes processed on each pad of the FPC. Before welding, it is necessary to drag and solder the pads of the FPC and the shell, and then align the FPC with the shell for pressure welding. , After the welding process is completed, judge whether there are any bad phenomena such as missing soldering and virtual soldering on each pad by observing the tin penetration in the through hole. In order to avoid the short circuit and virtual soldering caused by the misalignment of the soft tape pad and the shell pad, the FPC and the shell need to be accurately aligned under a microscope, which leads to a long time for the process; The area of a single pad is small, and the welding strength of the edge pad is poor. When the soft tape is reshaped during the module welding process, the ...
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Abstract
Description
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Application Information
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