Abstract: A signal transmitting element is used to solve the problem that an additional surgery is required to remove the conventional vascular monitoring element after completing the detecting task. The signal transmitting element comprises a body made of a specific biodegradable material. The body includes a signal sensing portion including a structure configured to sense a blood flow information of a blood vessel surrounded and contacted by the body, thereby generating a blood vessel signal; and a signal transmitting portion coupled with the signal sensing portion for receiving the blood vessel signal and including a specific structure configured to convert the blood vessel signal into a transmission signal.

Abstract: An inspection method and apparatus for a substrate are provided. The inspection apparatus includes an optical unit generating a light illuminating the substrate to generate an image, a sensor array receiving the image having a light wave comprising a wave-band within a range between 700 nm to 1500 nm, and an image processing unit capturing the image.