Quality Is Not Inspected In— It's Built In
From incoming material to outgoing shipment, every part is monitored, measured, and traceable. Our five-stage quality system is why global OEMs trust E-Tech with millions of safety-critical sensor components each year.
First-Pass Yield Rate
Customer Defect Rate
Full Lot Traceability
Quality Control System
Our Approach
We don't chase zero-defect as a slogan — we engineer our processes so defects have nowhere to hide.
Quality at E-Tech is not an inspection gate at the end of the line. It's embedded in every process step — from how we qualify raw materials, to how we design molds for manufacturability, to how we monitor injection parameters in real time. Our IATF 16949-certified quality management system ensures consistency across every batch, every shift, every part.
Production control
Stable quality, at the volumes you ship
Different issues need different experts. Here's how to reach th
Process Capability (Cpk)
Defect rate at volume (PPM)
On-time delivery
Final inspection coverage
Quality & Assurance
Quality Built Into Every Step
Certified systems and sensor-oriented inspection — from incoming material to final electrical test.
Automotive QMS
Quality Management
Environmental
Compliant
Compliant
Inspection criteria tailored to sensor structural parts, not generic metal goods.
Lot-level traceability from raw metal and resin to the finished component.
Statistical process control on stamping and molding for stable mass production.
Vision and electrical testing on critical dimensions before shipment.
Quality Process
Five Stages, Zero Gaps
Every sensor connector passes through five quality gates — from incoming material to outgoing shipment. Each stage has defined methods, acceptance criteria, and responsible personnel.
IQC -Incoming Quality Control
Every material batch verified before entering production.
Raw material and purchased components are inspected upon receipt. We verify material certificates (RoHs/REACHcompliance), run dimensional sampling per AQL standards, and test mechanical properties where applicable.Non-conforming lots are quarantined and returned.
Stage 01
Material Certificate Verification
AQL Sampling
Dimensional Check
RoHS/REACH Compliance
IoT Quarantine Protocol
DFM - Design for Manufacturability
Quality designed in before first tool cut.
Our engineering team reviews every new design for moldability, assembly feasibility, and critical-to-quality (CTO)dimensions. Moldfiow simulation predicts fll patterns, warp, and sink marks - fixing problems in software, not on the shopfloor.Raw material and purchased components are inspected upon receipt. We verify material certificates (RoHS/REACH compliance), run dimensional sampling per AQL standards, and test mechanical properties where applicable. Non-conforming lots are quarantined and returned.
Stage 02
Moldflow Simulation
CTQ ldentification
Tolerance Stack-Up
FMEA Review
Gate & Runner Optimization
IPQC — In-Process Quality Control
Real-time monitoring throughout production
During production, key process parameters (injection pressure, temperature, cycle time) are monitored in real time. First-article inspection is performed at every shift start and after any tool change. SPC charts track critical dimensions with CPK ≥ 1.33 targets.
Stage 03
SPC Monitoring
CPK ≥ 1.33 Target
First Article Inspection
Patrol Inspection
Process Parameter Logging
FQC — Final Quality Control
Comprehensive finished-product verification
Completed parts undergo full dimensional inspection on 3D CMM, functional testing (electrical continuity, sealing, insertion force), and visual audit under controlled lighting. Critical automotive connectors receive 100% inspection on key parameters.
Stage 04
3D CMM Measurement
Electrical Continuity
Sealing / IP Rating Test
Insertion Force Test
Visual Audit
OQC — Outgoing Quality Control
Final gate before shipment to customer
Before any lot ships, OQC verifies packaging integrity, label accuracy, quantity, and performs a final sampling inspection. Shipping documentation includes CoC, dimensional reports, and material certifications as required by each customer.
Stage 05
Packaging Audit
Label Verification
Final Sampling
CoC Documentation
Shipment Records
Inspection Capabilities
What We Test & How
Our inspection lab covers five major testing dimensions — each with dedicated equipment and defined acceptance criteria.
Verifying that every critical dimension meets drawing specification — from overall geometry to micro-feature tolerances.
- Zeiss CMM — 3D coordinate measuring, accuracy 0.001mm
- Keyence Vision System — 2D optical measurement
- Profile Projector — contour and cross-section inspection
- Pin Gauges & Go/No-Go — fast pass/fail on bore & shaft
Ensuring IP-rated connectors meet ingress protection requirements for automotive and industrial environments.
- PFEIFFER Helium Leak Detector — sensitivity 10⁻⁹ mbar·l/s
- Air Leak Tester — pressure decay method
- IP67/IP69K Test Chamber — water jet & immersion
Validating material properties, plating quality, and surface finish to ensure long-term durability and contact reliability.
- FISCHER Coating Gauge — plating thickness measurement
- Hardness Tester — Rockwell / Vickers scale
- Salt Spray Chamber — corrosion resistance (48–1000h)
- Surface Roughness Tester — Ra measurement
100% electrical verification on all wiring assemblies and connector products to guarantee signal integrity and safety.
- Continuity Tester — 100% automated testing per assembly
- Insulation Resistance — hi-pot testing up to 1500V
- Contact Resistance — mΩ-level measurement
- Insertion/Extraction Force — terminal retention validation
Simulating real-world conditions to verify that connectors survive the harshest automotive and industrial environments over their full service life.
- Thermal Cycling Chamber — -40°C to +150°C, 1000+ cycles
- Humidity Chamber — 85°C/85%RH accelerated aging
- UV / Xenon Aging — material degradation under light exposure
- Vibration Test System — random & sinusoidal per USCAR / ISO
- Thermal Shock — rapid transition between temperature extremes
- Chemical Resistance — exposure to oils, fuels, coolants
Our Lab
Inspection Equipment
Global-brand metrology and testing equipment, maintained and calibrated per ISO 17025 schedules.
Dimensional
Zeiss
Accuracy 0.001mm. Full 3D dimensional verification for complex geometries.
Dimensional
Keyence IM Series
Automated 2D optical measurement. Up to 300 dimensions in seconds.
Sealing
PFEIFFER
Sensitivity 10⁻⁹ mbar·l/s. For IP67/IP69K sealed connector validation.
Surface
FISCHER
X-ray fluorescence for precise plating thickness on terminals and contacts.
Material
Mitutoyo
Rockwell & Vickers scale. Verifying heat-treated and stamped part hardness.
Environmental
Espec
-40°C to +180°C range. Programmable thermal cycling and shock testing.
Traceability
Every Part, Fully Traceable
Our MES (Manufacturing Execution System) creates a digital thread from raw material receipt to final shipment — so any part can be traced back to its material lot, machine, operator, and process parameters.
APQP & PPAP
Automotive Launch Readiness
We follow the full APQP (Advanced Product Quality Planning) framework and deliver PPAP packages up to Level 5 — standard practice for every automotive program.
Failure mode analysis at design stage to eliminate risks before tooling.
Documented process flow diagram with all operations and control points
Detailed control plan covering every CTQ dimension and process parameter.
Measurement system analysis and statistical process control per AIAG standards.
Part submission warrant with full dimensional, material, and performance reports.
Certifications & Standards
Independently Verified Quality
Externally audited and certified by internationally recognized bodies.
Automotive Quality Management System.
Quality Management System.
Environmental Management System.
Hazardous Substance Compliance.
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