Wide view down an SMT assembly hall in Penang with placement machines, reflow ovens and board conveyors running under production lighting

Facility / Bayan Lepas Free Industrial Zone

Inside the Factory

Six SMT lines, three wave lines and one selective-soldering cell sit inside 4,100 m² of ESD-controlled production area. This page lists the equipment classes, the capacity envelope they produce and the environment controls that keep component damage out of the process.

SMT Capability

6 SMT lines 3 chip-shooter / 3 high-mix
40-80k CPH chip-shooter placement rate
4,100 m² ESD-controlled production area

Equipment and capacity

What is installed, what it holds, and how it is monitored

Equipment is listed by class rather than by machine label, because a buyer is buying a process window: placement rate, pitch, board envelope and the inspection that follows each operation. Capacity figures are the envelope the lines can produce at the stated shift pattern, not a measured output.

Assembly equipment and capacity envelope - Bayan Lepas plant
Equipment or area Class Specification Capacity or monitoring
SMT lines 6 lines 3 high-speed chip-shooter lines plus 3 flexible high-mix lines Two shifts, five days, with a third shift used for peak ramps
Chip-shooter placement High-speed 40,000-80,000 CPH on the high-volume lines Smallest chip placed is 01005 (0.4 × 0.2 mm)
High-mix placement Flexible 0.35 mm leadless and 0.4 mm leaded pitch at ±15-25 µm Fine-pitch, odd-form and connector work
Board handling Conveyor and magazine Board thickness 0.4-4.0 mm; 1 to 32 incoming layers Panel envelope up to 510 × 460 mm
Stencil printing In-line printer 100 µm, 120 µm and 150 µm foils In-line SPI on 100% of printed boards
Reflow ovens 10-zone forced convection SAC305 at a 217 C liquidus, peak held at 235-245 C Profile verified per paste lot and logged per panel
Wave soldering 3 DIP lines Pot temperature 250-265 C with pallet support First-off plus hourly coupons on each line
Selective soldering 1 cell Dedicated nozzle with soaked preheat for heavy joints Used for connectors, press-fit and thick copper planes
AOI In-line optical Programmed to the IPC-A-610 class on the drawing 100% coverage on every SMT build
X-Ray 2D and 3D Void measurement on hidden joints Every BGA and QFN, images retained per serial
ICT Bed-of-nails fixture Fixture cost band 2,000-50,000 USD, 4-8 weeks lead time Program developed in house against your netlist
Flying probe Fixtureless Roughly 3-10 USD per board with no fixture cost Used for prototypes and low-volume programmes
Functional test Custom fixture Fixture cost band 1,000-10,000 USD, 1-2 weeks lead time 100% or sampled, per the programme test plan
Placement capacity 6 SMT lines Up to 1.6 million placements per day at chip-shooter rates Zero MOQ on prototypes, MOQ 1 panel on production
Floor area 6,400 m² total 4,100 m² ESD-controlled to ANSI/ESD S20.20 Temperature and humidity logged continuously
Headcount ~240 staff Engineering, test development, quality and planning on site Three shifts across the assembly floor

Equipment gallery

Six views along the production route, in the order a panel follows from print to final test.

SMT line operator loading feeders at the start of a high-mix changeover with the setup sheet and AOI program staged alongside the machine

How the floor is run

Capacity, changeover and maintenance on a mixed high-volume, high-mix floor

Line assignment by board class

High-volume programs with a stable BOM run on the three chip-shooter lines, where the placement rate does the work and the setup cost is amortised over a long run. Boards with fine pitch, connectors, shielding or odd-form parts run on the high-mix lines, where feeders and nozzles change more often but the process window is wider. A panel never moves between the two classes without the AOI program, the reflow profile and the first-article record being requalified on the destination line.

Changeover as a controlled process

Feeders are loaded and verified offline against the BOM before the previous job finishes, and the stencil, the AOI program and the test fixture are staged at the line. The first article then goes through SPI, AOI and X-Ray before the line is released, which is the step that keeps a high-mix week from turning into a scrap week. Recent high-mix changeovers average 34 minutes from last board to first article.

Maintenance and calibration

Reflow ovens are profiled per paste lot, printers are checked against the SPI baseline at the start of every shift, and X-Ray, test fixtures and torque drivers sit on a 12-month calibration cycle with the status recorded in the traveller. Solder pots are checked daily for temperature and chemistry, because a wave pot drifts slowly enough that the first sign is usually a joint defect rather than an alarm.

Line utilisation

Availability, performance and quality for one measured month

OEE is the product of three ratios, so a number that looks healthy on availability alone is easy to check. The block below is the format returned to a customer when a programme needs the loading evidence.

line-utilisation / 2025-12 / six SMT lines
window        December 2025, 3 chip-shooter and 3 high-mix lines
planned       2 shifts x 5 days, 392 scheduled machine hours
availability  92.4%  unplanned stops and maintenance removed
performance   88.1%  actual rate against the rated rate
quality       99.4%  first-pass, no rework counted as good
oee           80.9% = 0.924 x 0.881 x 0.994
changeover    34 min average on the high-mix lines
utilisation   86.2% of planned hours booked to customer work
scrap        0.9% of placements, screened by AOI and X-Ray
wip          under 1 shift of work in front of the lines

ESD and environment control

The nine controls that protect components before soldering

Static damage does not announce itself: a latently damaged input can pass every inspection gate and fail in the field. These are the control limits the floor is held to, with the interval each one is checked at.

ESD and environment control limits - ANSI/ESD S20.20 programme
Control Limit held How it is monitored
Temperature 22 ± 3 C across the assembly hall Continuous logging with an alarm outside the band
Relative humidity 30-60% RH, the band that keeps paste behaviour stable Continuous logging per zone, reviewed daily
Flooring Conductive tile between 1 × 106 and 1 × 109 ohm Resistance measured at fixed points on a monthly cycle
Wrist straps 1 MOhm series resistance at every bench and line position Tested at the start of each shift, logged per operator
Footwear and heels Conductive footwear inside the EPA boundary Tested at the gate on entry, with a daily record
Ionisers Balanced to within ±35 V offset at the manual stations Offset verified quarterly and after any emitter cleaning
Moisture-sensitive parts Dry storage below 5% RH with floor life tracked per J-STD-033 Cabinet logs plus a floor-life clock on every reel opened
Baking 125 C for 24 h for parts at MSL 3 and above that exceeded floor life Bake log retained with the panel record
Calibration Test equipment, X-Ray and torque drivers on a 12-month cycle Status recorded on the traveller before a job is released

Buyer questions

Audits, growth and changeover on this floor

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