Popularize the basic standards and precautions

by:Top Talent     2020-03-15
FPC: Flexible Circuit Board (Flexible PCB): Abbreviated as 'soft board', also known as 'flexible circuit board', also known as 'flexible circuit board, flexible circuit board' or 'flexible circuit board, flexible circuit board', Widely used in mobile phones, notebook computers, PDAs, digital video cameras, LCM and many other products. Generally divided into flexible circuit boards (flexible printed boards, commonly known as flexible boards) and rigid flexible printed boards (also known as flexible and rigid boards). Based on the above products, our company provides a non-standard test overall solution provider to provide (design-programming-production-debugging-installation) one-stop service! The main FPC test functions include FPC open circuit test, FPC short circuit test, FPC dummy welding test, FPC missing part test, FPC wrong part test, FPC reverse test, etc. (non-standard customization). PLC automatic control, real-time data acquisition, automated testing and more. The test range includes single-sided, double-sided and multilayer boards for flexible circuits. The flexible circuit boards mentioned in this standard refer to single, double and multi-layer flexible copper foil substrates based on polyimide (PI) or polyester (PET), including glued and glueless Flexible copper foil substrate. The purpose of the test is to establish a general rule for judging the appearance quality of flexible circuit boards. As a basis for determining the rejection of the appearance quality of flexible board products between Tianpai and suppliers, it will help improve manufacturing technology and reduce unnecessary scrap Waste of resources and environmental pollution. Test method The test method uses visual inspection, magnifying glass, and ruler as the main inspection methods and tools. If necessary, other applicable testing instruments or equipment may be used for inspection. Test basic standards: appearance of substrate film; appearance of cover layer; deviation of connection pad and cover layer; leakage of adhesive and cover coating; discoloration of conductor under cover layer at 40 ° C and 90% humidity, 96 After an hour's humidity resistance test, it must still meet the requirements for voltage resistance, bending resistance, bending resistance, and welding resistance; missing coating of the coating; and poor electroplating bonding.
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