Automotive Electronic PCB & PCBA Solutions for Vibration and Thermal Reliability

We address z-axis thermal expansion fatigue through two primary controls:
Hole Wall Integrity: Vertical Continuous Plating guarantees a minimum through-hole copper thickness of ≥ 25 µm (1.0 mil) with high ductility (> 20% elongation), eliminating barrel fractures.
Material Selection & Assembly: We mandate High-TG laminates (TG ≥ 170°C, Td ≥ 350°C), low-voiding solder paste formulations (< 10% voiding under 3D X-Ray), and selective underfill dispensing around BGA/QFN packages to absorb vibrational shear stress.

Yes. We fabricate heavy copper boards up to 10oz (350 µm) capable of conducting continuous 200A+ current loads with planar heat dissipation. To eliminate surface dielectric tracking at 800V to 1500V DC working potentials, we utilize High-CTI substrates (CTI ≥ 600V, Material Group I) and CNC-milled isolation air slots (width ≥ 1.5 mm). Every high-voltage production panel undergoes 100% Hipot dielectric withstand testing (> 4000V AC, leakage current < 0.5 mA).

We procure components exclusively through authorized, franchised distribution networks (Digi-Key, Mouser, Arrow, Avnet, and direct silicon foundries). We enforce zero open-market broker sourcing for automotive builds. Incoming materials are verified via barcoded lot date-code tracking, original manufacturer Certificates of Conformance (CoC), optical microscopes, and non-destructive 3D X-Ray inspection to eliminate counterfeit or refurbished ICs.

We provide hybrid multilayer laminations combining Rogers high-frequency ceramic laminates (RO4835/RO4350B) with High-TG FR-4 cores. Key technical parameters include:
Dissipation factor Df ≤ 0.0037 @ 10 GHz with tightly managed dielectric constant tolerances (Dk ± 0.05).
Any-Layer HDI with 0.075 mm (3 mil) UV laser-drilled microvias and VIPPO planarized copper-capped pads.
Controlled impedance tolerance held to ±5%, verified through inline TDR test coupons.

Every automotive assembly passes through a multi-tier testing gate:
Optical & Radiographic: 100% 3D SPI for paste volume, dual-angle 3D AOI for component placement, and micro-focus 3D X-Ray for hidden solder joints.
Environmental Protection: Programmable 4-axis robotic selective conformal coating (polyurethane, acrylic, or silicone) applied to custom keep-out geometries, validated with UV inspection lamps.
Vibration & Moisture Hardening: Polyurethane potting options achieving IP67/IP68 ingress ratings for chassis- and wheel-well-mounted sensors.