JLC (嘉立创) Turnkey Electronics Manufacturing & Mechatronics: Multilayer FR-4 1-64L, HDI, FPC, MCPCB, PCBA Assembly, Stencils & CNC Enclosures

JLC Multilayer FR-4 & High-Density Interconnect (HDI) PCBs (1–64 Layers, Laser Microvia Technology)

Turnkey contract manufacturing of rigid printed circuit boards by JLC (Shenzhen JLC Technology Group) across high-yield automated production lines utilizing grade-A copper-clad laminates from Shengyi (S1000-2), Nanya, and ITEQ.

The process supports fabrication from 1 to 64 layers, advanced HDI microvia structures with blind and buried vias, laser drilling down to 0.075 mm, and mechanical CNC drilling down to 0.15 mm.

Industrial-grade boards are built for demanding environments and certified under ISO 9001, ISO 14001, automotive IATF 16949, and UL94 V-0 flammability ratings.

• Multilayer rigid PCB stackups: 1 to 64 layer multilayer boards using standard FR-4, high-Tg substrates (Tg 150–180°C), halogen-free laminates, and copper foil weights from 1/3 oz (12 um) up to 13 oz (450 um) for heavy-copper industrial power systems
• High-Density Interconnect (HDI): 1+N+1, 2+N+2, and stacked microvia build-ups, laser-drilled microvias down to 0.075 mm diameter, and fine line/space down to 0.065/0.065 mm (2.5/2.5 mil) for dense FPGA and BGA fanout routing
• Controlled impedance profiling: precision single-ended and differential impedance calculation and verification with tight ±5-10% tolerance for PCIe Gen 4/5, USB 3.2, DDR4/DDR5 memory buses, Gigabit Ethernet, and RF communication modules
• Surface finish options: Electroless Nickel Immersion Gold (ENIG 1–5 u" Au), ENEPIG, Immersion Silver, lead-free HASL, and Organic Solderability Preservative (OSP) for high-reliability component soldering

JLC Flexible Printed Circuits (FPC) & Rigid-Flex Multi-Layer Assemblies (1–4 Layers, EMI Shielding)

Flexible printed circuit boards (FPC) and unified Rigid-Flex assemblies from JLC-FPC deliver rugged 3D packaging solutions for compact mechatronics, robotic articulating joints, medical probes, and automotive sensor arrays.

Manufactured on premium adhesiveless polyimide (PI) films ranging from 12.5 um to 50 um with both electro-deposited (ED) and rolled-annealed (RA) copper foils, JLC flexible circuits provide dynamic flexing endurance and resistance to vibration fatigue.

• FPC layer stackups: single-sided, double-sided, and 4-layer multilayer flexible circuits using adhesiveless polyimide base films with laser-cut yellow, black, or white polyimide coverlays
• Rigid-Flex hybrid architecture: monolithic integration of rigid FR-4 component sections and dynamic flexible polyimide interconnect ribbons, eliminating bulky board-to-board wire harness connectors
• Stiffener reinforcement & shielding: localized stiffeners using precision SUS304 stainless steel plates, rigid FR-4 sheets, and thick polyimide, complemented by laminated silver/black EMI shielding films
• Industrial motion applications: high-flex life cable tracks for automated assembly robots, pan-tilt-zoom camera gimbals, additive manufacturing printheads, linear encoders, and portable diagnostic instruments

JLC Metal Core PCBs (MCPCB): Aluminum & Direct-Thermal Copper Base Boards (Up to 380 W/(m·K))

Metal Core Printed Circuit Boards (MCPCB) by JLC provide thermal management for high-power semiconductor devices, high-flux LED emitters, industrial servo drives, motor inverters, and automotive DC/DC power converters.

The structural metal backplane rapidly conducts heat away from sensitive junctions into chassis heat sinks, preventing thermal throttling and extending operating longevity under continuous heavy-duty loading.

• Aluminum base circuit boards: single- and double-sided boards built on 5052/6061 aluminum alloy plates (0.8 to 3.0 mm thickness) with dielectric bonding layers rated at 1 to 3 W/(m·K) and 3000 V AC dielectric withstand voltage
• Direct-thermal copper base (Thermoelectric Separation): advanced copper substrate architecture where power pads contact the solid copper core directly, achieving 380–400 W/(m·K) thermal conductivity without dielectric barrier bottlenecks
• Heavy copper conductor tracks: copper foil weights from 1 oz (35 um) to 6 oz (210 um) engineered to conduct high current densities without trace heating in motor controllers and industrial switching power supplies
• Specialized solder masks: high-reflectance white solder mask (>85% luminous reflectance) for solid-state lighting arrays, alongside industrial-grade matte black and green high-temp masks

JLCSMT Automated Surface Mount (SMT) & Turnkey PCBA Assembly (01005 Chip to Fine-Pitch BGA)

JLCSMT delivers automated turnkey electronics assembly services covering rapid prototyping and mass-production PCB assembly (PCBA).

Production lines feature pick-and-place placement systems, multi-zone nitrogen reflow ovens, automated optical inspection (AOI) stations, and real-time 3D X-ray inspection to assemble fine-pitch ball grid arrays (BGA), quad-flat no-leads (QFN), and wafer-level chip scale packages.

• Ultra-broad component packaging coverage: reliable placement from 01005, 0201, and 0402 chip passives up to dense 0.3 mm pitch BGA, CSP, fine-pitch QFP, and heavy electromechanical connectors
• Live integration with LCSC component inventory: instant BOM matching and component fulfillment from LCSC's verified warehouse stocking over 500,000 genuine active and passive parts
• Rigorous automated quality verification: 100% pre- and post-reflow automated optical inspection (AOI) for alignment and polarity, backed by high-resolution X-ray inspection for BGA solder balls and QFN ground pads
• Post-assembly value-added processing: selective conformal coating for harsh environments, ultrasonic PCB cleaning, selective wave soldering for THT connectors, and automated functional firmware flashing

JLC Precision Laser-Cut & Step Stencils: Stainless Steel with Nano-Coating for SMT Assembly

Laser-cut solder paste and surface mount adhesive stencils manufactured by JLC deliver repeatable paste transfer on automatic and semi-automatic stencil printers.

Cut with industrial fiber laser systems from imported spring-temper stainless steel foils, JLC stencils feature tapered aperture walls, smooth aperture topography, and positional accuracy required for sub-0.4 mm pitch fine-pitch IC placement.

• Foil specifications & frame options: hardened stainless steel foils from 0.08 mm to 0.25 mm thickness, mounted with pneumatic tension in cast aluminum frames (370x470 mm, 420x520 mm, 550x650 mm) or delivered as frameless foils
• Multi-thickness stepped stencils: precision Step-Down and Step-Up micro-milled cavities on a single foil, enabling simultaneous optimal solder paste volume for ultra-fine QFNs alongside heavy current terminal lugs
• Electropolishing & advanced nano-coating: electro-chemical deburring creates mirror-smooth aperture walls, while permanent hydrophobic/oleophobic nano-coatings eliminate paste bridging and reduce bottom-side wiping frequency
• Aperture optical inspection: automated optical measurement verifying aperture dimensional fidelity and fiducial positioning against CAD Gerber data for a wide process printing window

JLC CNC Machining, Sheet Metal Fabrication & Industrial 3D Printing (Mechatronics Enclosures)

The mechanical fabrication division of JLC (JLC Mechatronics) manufactures bespoke structural instrument enclosures, CNC-machined heatsinks, mounting brackets, and chassis hardware for industrial instrumentation.

Production equipment incorporates 3-, 4-, and 5-axis CNC machining centers, high-power fiber laser sheet cutters, CNC press brakes, and industrial additive manufacturing systems.

• CNC milling & turning capabilities: multi-axis machining of aluminum alloys (6061-T6, 7075-T6), stainless steels (304, 316L), carbon steel, brass, copper, and engineering plastics (POM/Acetal, PEEK, Nylon, PTFE)
• Precision sheet metal forming: fiber laser profiling from 0.5 mm to 12 mm plate thickness, multi-bend CNC press braking, PEM self-clinching fastener insertion, structural spot-welding, and electrostatic powder coating
• Industrial 3D printing & additive prototyping: high-detail Stereolithography (SLA resin), Selective Laser Sintering (SLS Nylon PA12), and Selective Laser Melting (SLM direct metal printing in 316L and AlSi10Mg)
• Surface finishing treatments: Type II and Type III hard-anodizing in custom colors, bead blasting, chemical passivation, electroless nickel plating, and high-contrast fiber laser engraving

JLC Membrane Switches, Graphic Overlays & Front Bezel Panels (Industrial IP65/IP67 Ingress Protection)

Custom membrane switch assemblies, tactile keypads, and graphic front overlays engineered by JLC provide intuitive human-machine interface (HMI) solutions for industrial automation consoles, medical instrumentation, and test systems.

Built to withstand mechanical wear, industrial chemicals, cutting lubricants, and washdowns, these interface panels provide front-side IP65 and IP67 dust and water sealing.

• Tactile membrane switch architecture: multi-layer printed film assemblies incorporating stainless steel tactile metal domes delivering clear snap feedback rated for over 1,000,000 operating actuation cycles
• Embedded status LED illumination: integrated surface-mount SMD LEDs and light-guide diffuser films providing bright, uniform backlighting for functional symbols and status indicators
• Graphic overlay substrate choices: scratch- and solvent-resistant Autotex textured polyester (PET) and optical-grade polycarbonate (PC) featuring sub-surface silk-screen reverse printing to prevent graphic wear
• Rigid bezel panels & display windows: precision CNC-milled anodized aluminum front panels, optical acrylic display filter lenses laminated with optically clear adhesive (OCA), and perimeter environmental gaskets

LCSC Electronic Components Warehouse, Industrial Connectors & Custom Wire Harnesses

Direct procurement of authentic active semiconductors, passive passives, industrial interconnects, and custom wiring harnesses through JLC and LCSC Electronics.

As a core subsidiary of the JLC group, LCSC stocks authorized components from hundreds of global and Asian semiconductor manufacturers, providing manufacturer Certificates of Conformance (CoC), traceability, and rapid fulfillment for volume electronics manufacturing.

• Semiconductor portfolio: 32-bit ARM Cortex-M and RISC-V microcontrollers, SPI Flash/EEPROM memory, high-speed RS-485/CAN transceivers, gate drivers, and low-RDS(on) power MOSFET and IGBT switching devices
• Passive components & circuit protection: tight-tolerance thin-film resistors, multilayer ceramic capacitors (MLCC), SMD inductors, common-mode chokes, transient voltage suppressors (TVS), and industrial PCB signal relays
• Board-to-board & wire-to-board interconnects: fine-pitch mezzanine stacking headers, screw and push-in cage terminal blocks, rugged industrial RJ45 jacks, sealed USB Type-C receptacles, and circular multi-pin connectors
• Custom wire harnesses & IDC ribbon cables: automated wire cutting, stripping, crimping of JST, Molex, and TE Connectivity terminals, insulation resistance testing, and 100% electrical continuity verification