Optical microscopes, usually considered the alternative to magnifying lamps, have the disadvantage of a small field of view which limits your working area and thus making it difficult for the operator to work under the microscope. Therefore digital microscopes are a great alternative and one that comes with many great benefits for the user but for the business as well.
QUALITY CONTROL AND QUALITY ASSURANCE
In electronics quality control (QC) process by which entities review the quality of all factors involved in production, a visual product inspection is often performed. Here, every product is examined visually, often using a microscope due to the miniaturization before the product is sold into the external market.
Inspectors will be provided with lists and descriptions of unacceptable product defects such as cracks or surface blemishes. Using a digital inspection microscope enables the inspector to faster detect product defects by checking the magnified boards in FULL HD image quality.
Preventing mistakes or defects in manufactured products and avoiding problems when delivering solutions or services to customers are natural concerns to EMS providers. Digital microscopes integrated as part of the Quality Assurance in production and R&D departments can often play an important role to clear these concerns.
Quality Assurance using a digital microscope could also be used by R&D engineers who need to inspect a prototype of a board manually, since there is currently no procedure to inspect it automatically. This process is also called First Article Inspection (FAI) and is crucial to prevent quality issues later on when the product hits production and thereby the damage is far less comprehensive.
VISUAL INSPECTION OF PCB
When inspecting PCB’s, bare solder boards, connectors or other components, digital microscopes allows the operator to zoom in on the product to either proof quality or to detect mistakes and defects and thereby change the production setup, preventing errors to continue. There are multiple stages in a PCB assembly where a visual inspection microscope can be necessary in the detection of quality issues. For example you can use the digital microscope to inspect wires on a bare board, solder paste, checking the placement of components on the board or a post reflow check.
Focus stacking is a digital microscope application developed to reduce blured images and create ultra sharp images to enable accurate and precise inspection.