If you have ever received a batch of PCBA with solder balls stuck to boards, components placed in the wrong polarity, or intermittent field failures caused by ESD damage – the root cause is often not the equipment. It is the workshop environment and discipline.
At our PCBA facility, we do not just talk about quality. We live by 6S management (Seiri, Seiton, Seiso, Seiketsu, Shitsuke, Safety). This is not a poster on the wall. It is a daily, verifiable system that protects your boards from contamination, damage, and defects.
Here is exactly how we run our 6S system – and why it matters for your orders.
We keep the production floor lean.
Workstations: No old PCB offcuts, expired flux, broken stencils, worn squeegees, or damaged fixtures. Any unusable item is moved to a holding zone within hours.
Toolboxes: Only essential tools remain – tweezers (sharp tips), soldering irons (clean, non-oxidized tips), torque screwdrivers (calibrated), cutters, and solder suckers. Damaged tools are removed and replaced immediately.
Office areas: Only active production files, process change records, test reports, and quality traceability documents stay on desks. No clutter. No outdated papers.
Why it matters for you: A sorted workshop means no mix-ups, no wrong components used, and no obsolete processes accidentally followed.
Organization is the backbone of defect prevention.
PCB storage: Boards are stored by model and batch in ESD-safe bags on ESD racks. Each location shows batch number, date, trace code, and process stage (pre-SMT, post-wave, tested). Different stages never mix.
Component storage:
ESD-sensitive parts: sealed ESD packaging with proper grounding.
Moisture-sensitive devices (MSD): stored by moisture level with humidity indicators and date opened.
Fine-pitch small parts (0201, 01005): small, covered bins to prevent loss.
Special components ( precisionICs, optics):
temperature/humidity/light-controlled storage.
Tools: Every toolbox and workbench has a tool list and foam cutouts. ESD testers and ionizers have dedicated spots. Tools are numbered for traceability.
Aisles & markings: Clear, wear-resistant floor markings separate material lanes from personnel walkways. Emergency exits, height/weight limits, and transfer zone signs are always visible and unobstructed.
Why it matters: Organized storage eliminates wrong-part placement, reduces search time, and prevents ESD or moisture damage before assembly begins.
We clean before and after every shift – not once a week.
Work surfaces & equipment: No dust, oil, or solder residue. Inside reflow ovens and wave solder machines, air ducts and heater areas are regularly cleaned. Nozzles are cleared, rails are smooth, screens and vents are spotless.
Floors: No debris, no solder balls, no oil. The ESD coating is intact, and the floor is flat for smooth cart movement.
Common facilities: Covered bins (emptied before overflow), ventilation systems (clear ducts, working fans, effective filters), HVAC (clean filters, proper drainage), lights (bright, dust-free), and break areas (clean tables, water dispensers).
Why it matters: Solder balls cause shorts. Dust on optics causes false test failures. Dirty nozzles cause mis-picks. A clean workshop directly improves your yield.
PCBA production workshop
4. Seiketsu (Standardize) – Make Cleanliness a Habit
We do not rely on memory. We rely on checklists.
Detailed cleaning schedules: Daily, weekly, and monthly tasks assigned to named persons. Every cleaning action is logged (date, person, what was done).
Workshop environment: Walls, ceilings, windows – no stains, no peeling paint, no dust traps. No ceiling leaks. Good seals keep dust out and temperature/humidity stable.
Cleaning tools: ESD brushes and alcohol wipes stored separately from general cleaning tools. Tools are dried after use and replaced when worn.
Why it matters: Standardization means you get the same cleanliness on Tuesday night shift as on Monday morning shift. Consistency is reliability.
Rules only work when people own them.
100% training participation: Every employee completes training on PCBA process, 6S, ESD, quality standards, new equipment, safety, and environmental awareness. Missed training is made up individually.
Discipline: No unauthorized leaving of workstations. No shortcuts on soldering temperature, placement pressure, or process sequence. First violation: coaching. Repeated: formal action.
Proactive behavior: Employees protect components (gentle handling, no collisions). After each job, tools and parts are returned. Abnormalities (machine errors, damaged parts) are reported immediately. Improvement suggestions are encouraged and rewarded.
Why it matters: A disciplined team catches problems before they become defects. Your boards are handled by people who care.
Signs & guards: Clear warnings for ESD, electrical hazards, moving machinery, chemicals, hot zones, and radiation. Guardrails, safety doors, thermal covers, and shielding are intact and functional.
PPE: ESD smocks, wrist straps, safety glasses, earplugs, masks, safety shoes, heat-resistant gloves, and radiation aprons – worn correctly for each task.
Safety equipment: ESD eliminators, ground fault breakers, fire extinguishers (correct pressure), hydrants, smoke detectors, emergency lighting, interlock switches, and eyewash stations – checked regularly and logged.
Why it matters: A safe workshop is a controlled workshop. No unexpected shutdowns. No accidents. No damaged boards from uncontrolled ESD or chemical exposure.
We do not set and forget.
A 6S inspection team (supervisors, leads, safety officer) performs daily spot checks and weekly full audits.
Every finding is recorded by area and responsible person. Corrective actions have deadlines.
Results are linked to performance bonuses and employee recognition.
A monthly 6S review meeting analyzes trends and updates procedures – so our 6S system gets better every cycle.
When you work with us, you are not just buying assembled boards. You are buying a manufacturing environment designed to protect your product. Less contamination, less ESD damage, less human error. Higher yield, reliable delivery, and lower long-term risk.
PCBA production workshop
We invite industrial equipment, automation, and electronics brands to see the difference a true 6S workshop makes. Let us build your next PCBA in an environment as disciplined as your engineering.
