PCB Dimensions Guide: Board Size, Thickness and Tolerance Standards What PCB Dimensions Really Include PCB dimensions are the complete set of mechanical parameters that define a bare board, not just its length and width. A full dimension set covers the board outline, the finished thickness, the copper weight on each…

SMT Mounting Principle: Placement Machine Mechanics The SMT mounting principle explains how a placement machine picks a component from its feeder, verifies its position, and places it exactly on the pad of a PCB. SMT stands for surface mount technology, and the mounting machine is the key equipment that performs…

PCB In Circuit Test (ICT) Guide: Process, Fixtures and Costs What PCB In Circuit Test (ICT) Means PCB in circuit test, usually shortened to ICT, is an automated electrical test applied to an assembled board to verify that every component is present, correctly placed, correctly valued and properly connected before…

SMT Red Adhesive Process and Mounter Belt Maintenance The SMT red adhesive process uses chip adhesive to hold surface mount components on the PCB before wave soldering. The adhesive is often red, which makes it easy for the operator and AOI system to see where it was applied. Red adhesive…

SMT Factory Cleaning and Inspection Guide SMT factory cleaning is much more than sweeping the floor. Cleaning removes garbage, dust, and stains that can contaminate solder paste, block machine nozzles, and cause intermittent quality problems. In an SMT workshop, cleaning is an equipment maintenance activity as well as a housekeeping…

SMT Connector Design Guide: Four Key Elements SMT connector design must provide reliable solder joints, mechanical support, and stable electrical contact in a small surface mount package. Connectors are different from ordinary chip components because they are inserted and removed many times during service. The repeated insertion force and thermal…

PCB Solder Mask Touch Up: Process, Standards and Cost Guide What PCB Solder Mask Touch Up Means PCB solder mask touch up is the controlled repair of local solder mask defects on an otherwise good board, using matching mask material instead of scrapping the whole panel. Solder mask protects the…

5S Implementation in SMT Factory: Practical Guide 5S implementation in SMT factory creates a clean, organized, and disciplined production environment. The five steps are sort, set in order, shine, standardize, and sustain. When applied in an SMT workshop, 5S reduces lost materials, prevents operator errors, improves machine reliability, and makes…

Smart Water Meter PCB: Design, Material and Cost Guide What a Smart Water Meter PCB Does A smart water meter PCB is the electronic core of a modern metering device, replacing the simple register of a mechanical meter with sensing, computing, storage and wireless communication on one board. The smart…

SMT Visual Management and Factory Process Guide SMT visual management helps factory operators see the normal state of the production line at a glance. A well-organized SMT workshop uses labels, color codes, instruction boards, and clear process displays so that every person can understand the job requirement without searching for…