WELL-18 · Wellness Electronics
Facial Microcurrent and Vibration Massager PCBA
A representative facial-device platform combining controlled low-energy electrical output, electrode-contact supervision, mechanical vibration, rechargeable power, local controls, and optional wireless guidance.
Project context
A representative engineering program
A representative facial-device platform combining controlled low-energy electrical output, electrode-contact supervision, mechanical vibration, rechargeable power, local controls, and optional wireless guidance.
System architecture
How the electronics are organized
A battery-powered MCU and low-noise analog front end generate and limit the electrode output, sample contact quality, drive a vibration motor, and manage keys, charging, session timing, and optional BLE communication.
Engineering risks to close
What must be resolved before release
- Maintain stable output across dry contact, conductive media, low impedance, and edge-current-density variation.
- Keep motor PWM and startup current from corrupting low-level analog measurement.
- Protect electrode plating, seals, and adhesive joints from sweat, cleaning agents, and moisture.
Validation plan
Evidence expected before production
- Measure output current, compliance, polarity or charge balance, level monotonicity, contact detection, and short-circuit response on equivalent loads.
- Test motor current and vibration alongside analog-noise, wireless, charging, ESD, and power-interruption scenarios.
- Run electrode contact-resistance, seal, sweat, cleaning-agent, high-humidity, drop, and thermal-cycle aging.
Decision-ready evidence packet
What a comparable RFQ should define
This checklist turns the technical story into reviewable inputs and release records. It describes what buyers and manufacturers should agree—not a claim that every listed record applies to every build.
Design baseline
Released schematic or block diagram, interface table, power states, critical constraints, and revision owner.
Manufacturing release
Gerber or ODB++, stack-up, centroid data, assembly drawings, approved DFM dispositions, and panel assumptions.
Material control
Released BOM revision, manufacturer part numbers, AVL or alternate rules, no-substitute lines, MSL handling, and exception approvals.
Validation record
Test method, acceptance criteria, sample or serial identity, measured result fields, and disposition. Example scope: Measure output current, compliance, polarity or charge balance, level monotonicity, contact detection, and short-circuit response on equivalent loads.
Production release
First-article status plus the agreed SPI, AOI, X-ray, ICT, FCT, programming, rework, OQA, labeling, and packing records.
Project-specific fields, retention periods, sampling rules, measured limits, and customer approvals are confirmed during RFQ and protected under the applicable confidentiality agreement.
Development and production controls
Manufacturing scope represented here
- Controlled microcurrent output and contact sensing.
- Vibration-motor and UI integration.
- Rechargeable wireless facial-device control.
Technical image review
Board-level evidence
White-background views are published to make component placement, interfaces and assembly boundaries easier to inspect.
