The company has an independent and large-scale quality management and technology research and
development team. They follow industry international standards such as IPC-6012, IPC-TM-650, and
IPC-A-600G to set their own requirements. They have equipped with advanced quality inspection
equipment such as peel strength tester, metallographic microscope, line width detector, A01
optical inspection machine, and fully automatic tester, providing an effective guarantee for the
stability of product quality.
Meanwhile, the enterprise has implemented measures such as adding the vacuum etching process,
introducing high - resolution automatic photoplotting equipment, and adjusting the arrangement
and combination of water jets in the key DMSE tanks. As a result, it has now achieved multiple
leading indicators in the industry's process technology. Currently, the maximum number of layers
of the product is eight, the completed board thickness is 3.2mm, the minimum finished product
hole diameter is 0.20 mm, the line width of the inner and outer layers is 3 mils, the minimum
isolation ring of the inner layer is ≤7 mils, the maximum aspect ratio of electroplating is
1:10, the conventional solder mask bridge is 4 mils, the solder mask plugging hole capacity is
≤0.50 mm, the steel thickness on the finished product surface is 402 ounces, and the impedance
control range is ±10%. Without special instructions from customers, the company can provide
three different surface treatment processes, namely hot air solder leveling, electroless gold
plating, and organic solderability preservatives. To meet customers' requirements for special
products, the company has completed the research and development of technologies such as blind
slots, blind holes, and trumpet - shaped half - holes.
| Project | Content | Convention | |
| 22 | Hole Position Tolerance (Compared With CAD Data) | ±3mil (±0.076mm) | |
| 23 | PTH Hole Copper Thickness (Non Gold Plating) | ≥0.8mil (≥0.020mm) | |
| 24 | PTH Hole Copper Thickness (Gold Plating) | ≥0.6mil (≥0.015mm) | |
| 25 | Outer Layer Design Line Width/Space (Min) | H/HOZ: 3mil/3mil (0.076mm/0.076mm) 1/1OZ: 5mil/5mil (0.125mm/0.125mm) 2/2OZ: 7mil/7mil (0.152mm/0.152mm) |
|
| 26 | Inner Layer Design Line Width/Space (Min) | H/HOZ: 3mil/3mil (0.076mm/0.076mm) 1/1OZ: 5mil/5mil (0.125mm/0.125mm) 2/2OZ: 7mil/7mil (0.152mm/0.152mm) |
|
| 27 | Image Tolerance After Etch | ≤±25% | |
| 28 | Layer To Layer Image Tolerance | ±4mil (±0.10mm) | |
| 29 | Image To Hole Tolerance | ±4mil (±0.10mm) | |
| 30 | Image To Edge Tolerance | ±6mil (±0.152mm) | |
| 31 | Hole To Hole Position Tolerance | Φd > 1.0mm | ±5mil (±0.127mm) |
| Φd ≤ 1.0mm | ±3mil (±0.076mm) | ||
| 32 | Soldermask Registration | ±3mil (±0.076mm) | |
| 33 | Soldermask Thickness (Min) | (8~10) um | |
| 34 | Soldermask Bridge (Min) | 3mil (0.076mm) | |
| 35 | Soldermask Plug Hole Diameter | ≥0.75: Solder In Hole 0.55~0.75: Solder Ball On One Side ≤0.55: No Solder Ball |
|
| 36 | Spacing Between Gold Finger & Solder Pad (Min) | 8mil (0.203mm) | |
| 37 | Gold Finger Nickel Thickness (Max) | ≤200uin (5um) | |
| 38 | Gold Finger Gold Thickness (Min) | ≥30uin (0.76um) | |
| 39 | Gold Finger Height (Board Edge To Top Of Gold Finger) (Max) | 10" (254mm) | |
| 40 | Tolerance Of Chamfer Depth (Min) | ±7mil (±0.178mm) | |
| ±5mil (±0.127mm) | |||
| 41 | Range Of Chamfer Angle & Tolerance | 15°~75°: ±5° | |
| 42 | Nickel Thickness For Electroless Nickel Immersion Gold (Measured At The Point) (Max) | 150uin (3.8um) | |
| 43 | Gold Thickness For Electroless Nickel And Immersion Gold (Measured At The Point) (Max) | 3uin (0.076um) | |
| 44 | Nickel Thickness For Flash Gold Plating (Soft Gold) (Measured At The Point) (Max) | 200uin (5um) | |
| 45 | Gold Thickness For Flash Gold Plating (Soft Gold) (Measured At The Point) (Max) | 2uin (0.05um) | |
| 46 | Nickel Thickness For Flash Gold Plating (Hard Gold) (Measured At The Point) (Max) | 200uin (5um) | |
| 47 | Gold Thickness For Flash Gold Plating (Hard Gold) (Measured At The Point) (Max) | 4uin (0.1um) | |
The company has abundant production capacity, with strict control over raw material prices, quality and stable supply, laying a foundation for continuous production. The company adopts an ERP production management system to accurately monitor the production progress, process capacity analysis, and supporting process coordination of the internal manufacturing process, ensuring the accurate delivery of products.
Rough shape cutting
IPQA
Stripping and etching
AOI testing
QC
Copper deposition
Copper deposition
Electroplating
Solder mask
Surface treatment
OSP
FQC
FQA