1 - 24 Layers SMT PCB Assembly Consumer Electronics DIP PCB Assembly

HTF provides a comprehensive small batch mixed SMT and DIP PCB assembly service that combines surface mount technology with through-hole soldering in a single integrated production workflow. Operating from our manufacturing facility in Guangdong, China, this service is engineered to address the requirements of projects that demand both advanced SMT component placement and traditional through-hole assembly on the same board. Supporting a flexible range from single prototype units to small batch production runs, our mixed technology assembly capability eliminates the need to coordinate multiple vendors for boards containing both surface mount and through-hole components. From FR4 and aluminum substrates to ROGERS high-frequency laminates and High TG materials, we process a wide variety of PCB materials across 1 to 24 layer designs with copper weights ranging from 0.5 oz to 6 oz, ensuring robust electrical performance and mechanical durability in every assembled board.

1. Mixed SMT and DIP Assembly: Single-facility integration of surface mount technology and dual in-line package through-hole soldering eliminates multi-vendor coordination, reducing lead times and ensuring consistent quality across both assembly processes on the same PCB.
2. Flexible Small Batch Production: Accommodates production quantities from 1 piece prototype to several hundred units per batch, providing the scalability needed for design verification builds, pilot production runs, and low-to-medium volume commercial orders.
3. 1-24 Layer PCB Support: Full multilayer capability from simple double-sided designs to complex 24-layer high-density interconnect boards, with impedance control and controlled dielectric specifications available for RF and high-speed digital applications.
4. Extensive Material Compatibility: Process FR4 standard laminates, aluminum-based boards for thermal management, ROGERS materials for microwave and RF circuits, and High TG substrates rated for elevated temperature operation exceeding 170 degrees Celsius.
5. Nine Solder Mask Color Options: Choose from standard green, matte green, black, matte black, red, yellow, white, blue, and purple solder mask finishes to meet functional requirements, branding specifications, or aesthetic preferences for end-user visible assemblies.
6. Turnkey Manufacturing Service: Complete end-to-end solution covering component sourcing, stencil fabrication, SMT placement, wave and selective soldering for through-hole parts, cleaning, conformal coating when specified, and comprehensive electrical testing before shipment.

The mixed SMT and DIP assembly capability serves a broad spectrum of consumer electronics and industrial applications where board designs incorporate both surface mount and through-hole components. Typical projects include power supply boards combining SMT regulators with through-hole transformers and large capacitors, audio amplifier modules mixing surface mount preamplifier circuits with through-hole power transistors, industrial control interfaces integrating fine-pitch microcontrollers with robust DIP connectors and relays, and LED driver boards pairing high-density SMT driver ICs with through-hole terminal blocks. Design engineers appreciate the flexibility of placing high-current connectors, electromechanical relays, large inductors, and heat-sinked power devices as through-hole components while using SMT for dense digital and analog circuitry on the same board. This approach is particularly valuable for prototyping consumer products that will transition from mixed-technology proof-of-concept designs to fully SMT-optimized volume production, allowing the same manufacturing partner to support the entire product lifecycle from initial prototype through pilot runs and into mass production.

Finished boards are individually sealed in anti-static moisture barrier bags with desiccant and humidity indicator cards, then packed with electrostatic discharge protective foam in corrugated shipping cartons sized at 15.0 cm x 10.0 cm x 10.0 cm per single unit with approximately 0.5 kg gross weight. HTF maintains ISO9001 certified quality management with documented process controls at every production stage including incoming component inspection, solder paste print verification via solder paste inspection systems, pre-reflow and post-reflow automated optical inspection, through-hole solder joint evaluation, and final electrical test with custom test fixtures developed per project requirements. For mixed-technology assemblies where both SMT and DIP processes interact, our quality engineers perform cross-process verification to ensure thermal profiles during wave soldering do not compromise previously placed SMT components. Additional services including conformal coating for environmental protection, functional burn-in testing, and detailed first article inspection reports are available to support customer quality documentation requirements for regulated industries.