Manufacturing Capabilities

Five processes run under a single inspection system. Each page lists the specification, the equipment behind it, and — equally important — the cases where you should use a different process instead.

Summary

Our in-house capabilities are 3-, 4- and 5-axis CNC milling, CNC turning with live tooling, sheet metal fabrication including laser cutting and welding, surface finishing through anodising and powder coating, and dimensional inspection on a CMM rated to ±0.002 mm. Heat treatment, forging, casting and non-destructive testing are subcontracted to audited suppliers and remain under our inspection gate.

Semiconductor Packaging

Automated power device packaging in Shenzhen: die attach, wire bonding, moulding, trim and form, 100% electrical test. 50 million units per month capacity.

  • 50 million units per month
  • 2021, fully automated lines; equipment expanded in 2024
Specification and equipment

Reliability Testing

In-house reliability testing to JESD22 methods: HTRB, H3TRB, HT/HU, temperature cycling, thermal shock, solderability, HTSL, RSH and HPC.

  • HTRB, H3TRB, HT/HU, HTSL, TCT, thermal shock, solderability, RSH, HPC
  • JESD22 methods; test conditions stated per report
Specification and equipment

SiC Device Assembly

SiC MOSFET and SiC Schottky die assembly for 175 °C operation: high-temperature die attach, copper bonding, high-Tg moulding and two-point RDS(on) test.

  • 650 V and 800 V SiC MOSFETs; 650 V SiC Schottky diodes
  • 175 °C maximum
Specification and equipment

Custom Device Development

Custom power device development: die selection with foundry partners, DFN/QFN/TOLL outline qualification, custom marking and packing for OEM programmes.

  • CNY 10 million in 2024; 5.6% of revenue in 2023
  • IC design, application design, high and low voltage MOSFET, DFN/QFN outlines, custom products
Specification and equipment

Traceability & Quality System

Lot traceability from foundry wafer to shipping carton through ERP, MES and WMS records, under an ISO 9001:2015 quality system with PCN change control.

  • ISO 9001:2015; certificate and scope available on request
  • ERP, MES, WMS and CRM with lot-level records
Specification and equipment
Process selection

Tolerance and cost by process

The same feature can often be produced three ways at three different price points. This table shows what each process realistically holds.

Process Typical tolerance Surface finish Economical quantity Lead time
3-axis milling±0.02 mmRa 1.6 µm1 – 10,0005–10 days
5-axis milling±0.005 mmRa 0.4 µm10 – 50,0007–15 days
CNC turning±0.005 mmRa 0.4 µm50 – 100,0007–12 days
Sheet metal±0.1 mmAs-formed or coated50 – 20,00010–18 days
Surface finishingN/A — adds 5–80 µmPer specificationAny2–6 days

Surface finishing changes dimensions: coating thickness is added to the part, so bores, threads and press fits must be specified with finish allowance in the drawing. This is decided at DFM, not after machining.

Send the part number and the operating conditions

Tell us the voltage class, current, switching frequency and what the device is replacing. You will get a datasheet, a parameter comparison at matched conditions, and a quotation with MOQ and lead time.