Abstract :

In order to protect delicate microelectronic devices from moisture-related malfunctions when exposed to the internal environment of the human body, hermetic sealing is necessary for implantable medical devices (IMDs). Due to its accuracy, automation potential, and low heat effect, laser hermetic welding has become the most popular joining technique in the manufacturing of medical devices. The application of laser hermetic welding to IMDs is thoroughly examined in this review, with particular attention paid to welding methods, crucial process variables, weld flaws, and hermeticity testing. It also describes present issues and potential paths forward for improving device performance, dependability, and miniaturization. For engineers, researchers, and manufacturers of medical devices looking to maximize hermetic packaging techniques, the review is a technical resource.

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Keywords :

Biocompatibility, Helium leak testing, Hermetic sealing, Implantable medical devices, Industry 4.0, Joint precision, Laser absorption, Laser beam, Laser welding, Real-time monitoring, Titanium welding, Weld defects

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