Tutorials

Summary:Learn the basic PCB design process — schematic creation, BOM management, Gerber documentation, component placement, thermal design, and DRC.

Summary:Learn about IPC standards for PCBs — what IPC is, why standards matter, key benefits for quality and cost, and the three product classes.

Summary:Countersink vs. counterbore in PCB fabrication: cone-shaped vs. flat-bottomed holes, and the angle, diameter, depth, side and plating specs required for each.

Summary:This Gold Phoenix PCB article explains flex PCB stiffeners — materials (FR-4, polyimide, stainless steel, aluminum), when to add them, and attachment methods.

Summary:Add stiffeners where SMT parts, heavy components or ZIF connectors sit, not on the bend; FR4 laminates in cycle, PI needs a separate lamination.

Summary:This Gold Phoenix PCB article covers PCB assembly basics including surface mount, through-hole, and mixed technology — with their pros, cons, and history.

Summary:Learn PCB layout guidelines for SMPS design — covering grounding, trace widths, capacitor placement, creepage/clearance and IPC/UL standards.

Summary:Compare rigid and flexible PCBs by cost, applications, manufacturing steps, coverlay requirements and total cost of ownership for PCB design decisions.

Summary:Compare flex PCBs with stiffeners and rigid-flex PCBs by functionality, cost, assembly impact, component support, ZIF requirements and design flexibility.

Summary:Learn about PCB copper trace surface finishes — compare HASL, immersion tin, OSP, ENIG, hard gold and carbon ink plating methods with their pros and cons.

Summary:Learn what multilayer PCBs are, their key benefits, disadvantages, real-world applications across industries, and how they compare to single-layer boards.

Summary:PCB stack-up design principles — EMC considerations, layer arrangement rules, and standard configurations for 4, 6, and 8-layer boards.

Summary:Learn about controlled impedance in PCBs — when it matters, how impedance control works, and microstrip impedance parameters for your circuit board.

Summary:PCB safe distance depends on voltage and insulation class: primary-to-secondary clearance 4 mm, creepage 6.4 mm, plus reinforced insulation thickness rules.

Summary:When to panelize PCBs — covering cost savings, assembly efficiency, separation methods (mouse bites and V-scores), and manufacturer collaboration.

Summary:Pick components by footprint, package height, grounding and decoupling; run BOM for virtual parts, complete vendor data, sort designators and tie spare gates.

Summary:Flex-to-install bends need 6x board thickness, 12x for 3+ layers; dynamic flex needs about 100x thickness, with copper on the neutral axis of the bend.

Summary:Learn what an annular ring is, how to calculate annular ring width, and DFM inspection options including tangency and minimum annular ring standards.

Summary:SMT stencil-prints paste, places SMDs and reflows in IR, convection or vapor-phase ovens, then cleans flux and runs AOI inspection on dense assemblies.

Summary:Include a 1:1 Gerber mechanical layer with exact board outline, slots, reference drill, PTH/NPTH marks, V-score calls and layer stack-up drawing.

Summary:Learn how UV laser cutting meets modern FPC design trends — covering stress-free cutting, narrow cut widths, material applications, and precision depaneling.

Summary:PCB terms defined: annular ring, DRC, drill hit, finger, mouse bites, via, land, trace, plane and other common words PCB designers meet in layout.

Summary:Through vias are cheapest; blind and buried vias save routing space on multi-layer boards but cost more, and minimum drills run about 12 mil with 6 mil annulus.

Summary:Transfer netlists at 1 mil grid, fix missing footprints, forward/back annotate carefully, renumber designators top-to-bottom and locate parts by highlight.

Summary:Wave soldering suits through-hole parts at volume; reflow solders SMT paste in an oven. Use both sides, and control temperature profiles for yield.

Summary:Why most multilayer PCBs have even layers: lower cost, balanced stacking and less warpage, plus how to balance an odd-layer design without bending.

Summary:Stiffeners rigidize flex areas for ZIF connector thickness, flat component zones, handling, plated-hole support and solder-joint protection, per IPC-2223.

Summary:PCB bake times at 120±5°C by shelf age (1 to 6 hours), stack limits, and precautions for OSP, HASL and immersion-tin boards before assembly.

Summary:Understand solder mask layers and solder paste layers in PCB design, including their functions, file requirements, and visual examples of top-layer masks.

Summary:Understand PCB structures and terms, including PTH vias, HDI microvias, pads, anti-pads, lands, traces or tracks, and planes for PCB design.

Summary:Steer clear of CPU over-spec, steep clock edges, excessive decoupling caps, unused I/O, random resistor values and blind auto-routing in PCB design.

Summary:This Gold Phoenix PCB article introduces PCB vias — types (blind, buried, through-hole), parasitic capacitance and inductance, and high-speed design tips.

Summary:Learn about all PCB layer types — signal layers, power/ground planes, mechanical, solder mask, silkscreen, keepout, drill and system layers with a summary.

Summary:Via tenting covers holes with mask; plugging fills them non-conductively; via-in-pad fill supports BGA pads; compare conductive versus non-conductive fills.

Summary:Compare through, buried, blind and micro vias in flex circuits, with design rules on location, pad size, bend radius and clearance from stiffeners.

Summary:Compare single-point, multi-point and hybrid PCB grounding, plus connections between split ground planes via wires, resistors, capacitors and ferrite beads.

Summary:How flex vias are drilled and plated, their routing pros and cons, and the polyimide, rolled-copper, adhesive and coverlay stack-up that makes flex boards work.

Summary:From circuit and schematic through footprints, outline, design rules, placement, routing, DRC and Gerber output, follow 11 steps to a manufacturable PCB.

Summary:Learn about PCB copper pouring — its significance for EMC and signal integrity, advantages and disadvantages, and common pour shapes.

Summary:Design PCBs for moisture, temperature, chemicals and vibration: rugged-grade electronics, material choice, shock mounting and heat-transfer with heat sinks.

Summary:Recognize 17 common SMT solder defects such as bridges, tombstones, cold joints, voids, pinsholes and gray joints, with their typical causes.

Summary:Compare adhesive-backed and rigid stiffeners, and choose FR4, polyimide, stainless steel or aluminum for support, heat, EMI and ZIF connector needs.

Summary:Choose PCB laminate by thermal, electrical, chemical and mechanical specs: Tg, Td, CTE, thermal conductivity, Dk, Df, flammability and peel strength.

Summary:Learn how thick PCB solder mask should be, how to measure it on copper, and design rules for annular rings, isolated pads, test points and gold fingers.

Summary:Manage flex-circuit heat for LED and high-current apps: thin polyimide cores, copper planes, aluminum heat sinks and thermally conductive PSA.

Summary:Understand PCB laminate from paper-based epoxy to FR4 Tg130/170/180, lead-free needs, IPC-4101 specs, and why to avoid over-specifying brands.

Summary:PCB shorts and opens: how they occur in layout and manufacturing, how a netlist prevents them, and cost-effective ways to manage errors after production.

Summary:When to use conductive copper fill to carry heat and current versus non-conductive mask-plugged vias for via-in-pad, plus CTE and pad-wall fracture trade-offs.

Summary:This Gold Phoenix PCB article covers key PCB design considerations including physical border creation, component layout, wiring rules, and network verification.

Summary:PCB recycling: recover copper and tin from printed circuit boards—edge trim, wastewater sludge, etching, rack stripping, solder stripping, hot air leveling.

Summary:Via-in-pad saves BGA board space but requires filled vias; compare epoxy versus copper fill, pad-size and annular-ring rules, and the cost trade-offs.

Summary:SMT placement tips: manage CTE mismatch, place connectors and power first, add vias on high-current transitions, and review layout after placement.

Summary:How to choose laminate for rigid PCBs: IPC standards, impedance control, Dk/Tg values, high-speed requirements, and lead-free assembly considerations.

Summary:Controlled impedance sets a circuit's opposition to AC for timing and signal integrity, and matters for high-frequency analog and high-speed digital boards.

Summary:Learn about PCB gold finger surface treatments (nickel gold plating and immersion gold) and design tips for chamfering and copper clearance.

Summary:Membrane switch circuit design guide: graphical overlays, circuit layers, ZIF connectors, keep-out areas, switch matrices, and waterproofing best practices.

Summary:Types of PCB pads: common designs (square, circular, oval, open-shaped) and special pads (plum blossom, cross-shaped, teardrop) for PCB manufacturing.

Summary:Understand PCB base materials and copper foil — substrate, lamination, solder mask, silkscreen, copper thickness, and the role of copper in circuit boards.

Summary:Learn about PCB voids, including plating voids and solder voids, their causes, impact on circuit performance, and prevention methods during PCB manufacturing.

Summary:Common PCB questions answered — covering heat dissipation, copper thickness, gold finger plating, pad spacing, and UL94 flame retardant ratings.