Surface mount technology (SMT)

DTVS provides SMT assembly services for printed circuit boards (PCBs). Surface-mount assembly is carried out on four automated production lines, ensuring high precision, productivity, and manufacturing flexibility:

Three lines are equipped with high-performance FUJI NXT II placement machines (a total of 42 modules).
One line is equipped with Yamaha YS12, Yamaha YS12F, and the high-speed Yamaha YSM20R component placement machines.

The total production capacity of the lines exceeds 1 million components per hour according to the IPC standard.

Specifications

Minimum PCB size

50 mm x 50 mm

Maximum PCB size (L x W)

460 mm × 510 mm

Maximum PCB thickness

4 mm

Minimum component size (EIA)

01005

Maximum number of component types for simultaneous placement

460 (different component types)

Placement accuracy

30 μm

All SMT lines are equipped with modern KTR-1200-N convection reflow ovens designed for soldering in a nitrogen atmosphere. For processing large-size PCBs (including server boards up to 600 × 800 mm), an HC-850 automatic stencil printer is used. All production lines are equipped with laser marking systems that apply unique identification information to each PCB. Combined with the company’s in-house Traceability system, this ensures full lifecycle control of the products.

Efficient post-soldering PCB cleaning is performed using a BC320 spray cleaning system.

A multi-level quality control system has been implemented at the facility, covering all stages of the production cycle:

Automated 3D solder paste inspection (SPI) — Parmi SigmaX Large and Omron VP9000 systems.
Dual automated 3D optical inspection (AOI) — Parmi Xceed Large and Omron VT-S530 / VT-S730 systems.
Comprehensive X-ray inspection — AXI-7300 inline system and PCBA-ANALYZER offline station.