Abstract:Scanning Acoustic Microscope, known as SAM, is a device that is used to investigate, measure or image an object. It is widely used for a non-destructive evaluation which is its biggest plus point. A Scanning acoustic microscope is useful for detection of defects in multilayered structures by a low time consuming process. The aim of this review is to understand the applications, uses and structure of this microscope. A systematic search strategy was employed and articles were found using keywords. Literature was taken from databases like PubMed and Google Scholar. Articles that discussed the use of SAM and its uses were included. Other articles which had data regarding the structure and its applications in different fields were also included. A total of about 100 articles were collected initially. Multiple articles were added later from other sources. After eliminating articles that did not meet the inclusion criteria, more than 50 studies were finally obtained. This review summarized the use of a Scanning Acoustic Microscope. Its structure, and other applications among different fields were also discussed in detail.