Soldermask Specification

Overview

This specification applies to all boards manufactured in our standard pooling.

Other configurations are only available upon request, a minimum order quantity or other restriction may apply.

Specification

We use high-quality Peters Elpemer AS 2467 SM-DG green soldermask by default for all boards in our standard pool. This soldermask is very well suited for the HASL and ENIG finishes we offer. The high resistance against scratches and solvents make our PCBs easy to handle.

Electrical Characteristics

(as per product datasheet)

Characteristic Test method Result
Dielectric Constant εr IPC 4101A @ 1MHz 3,7
Loss Tangent δ IPC 4101A @ 1-100 MHz 0,029 ± 0,003
Dielectric Breakdown VDE 0303, Part 21 IPC-TM-650, 2.5.6.1 160-190KV/mm
Surface Resistance VDE 0303, Part 30 DIN IEC 93 2 x 10^14 Ohm
Trough Resistance VDE 0303, Part 30 DIN IEC 93 10^16 Ohm x cm
Isolation Resistance Bellcore GR-78-CORE Passed

Mechanical Characteristics

(as per product datasheet)

Characteristic Test method Result
Pencil Hardness Test IPC-SM-840 C, 3.5.1 6-8 H
Thermal Class After DIN IEC 60 085 F = 155°C