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Automatic Film Adding Line
Automatic Film-Stick Equipment
Hole Verifier
Inner Layer Brown Oxidation
Lamination Equipment
Laser Direct Image (LDI)
Pattern Plating
PCB Grinding Machine
PCB Inspection
PCB Pattern Developing
Solder Mask Pre-disposal Machine
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Automatic Film Adding Line Automatic Film Adding Line |
Automatic Film-Stick Equipment Automatic Film-Stick Equipment |
Hole Verifier Hole Verifier |
Inner Layer Brown Oxidation Inner Layer Brown Oxidation |
Lamination Equipment Lamination Equipment |
Laser Direct Image (LDI) Laser Direct Image (LDI) |
Pattern Plating Pattern Plating |
PCB Grinding Machine PCB Grinding Machine |
PCB Inspection PCB Inspection |
PCB Pattern Developing PCB Pattern Developing |
Solder Mask Pre-disposal Machine Solder Mask Pre-disposal Machine |
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Bicheng Electronics operates two major production bases, strategically located in Shenzhen and Jiangmen.
The Shenzhen factory employs over 300 staff and has a monthly output exceeding 10,000 square meters of PCBs. As a brand-new facility, it specializes in quick-turn prototypes and small-volume production.
The Jiangmen factory features two new industrial buildings spanning approximately 15,000 square meters, specifically designed for mass production. Equipped with state-of-the-art automated machinery sourced from Israel, Japan, Germany, and Taiwan, the Jiangmen facility produces up to 30,000 square meters per month for 2- to 10-layer PCBs. The establishment of this plant has significantly strengthened Bicheng’s capacity to supply high-end PCBs to both domestic and global markets.
With a strong and diverse product portfolio, Bicheng serves customers worldwide. Our offerings include multi-layer boards (up to 32 layers), flex-rigid combinations, heavy copper PCBs, high-frequency and high-speed boards, and HDI, among other types.
We are committed to becoming a leading diversified PCB supplier known for precision-engineered products. Our mission is to create lasting value for our customers while building a promising future for our employees.
About Us
We are a service-oriented company specializing in PCB fabrication and PCBA delivery. Our core team has over 20 years of industry experience, with in-depth knowledge of manufacturing processes for multi-layer PCBs, HDI boards, rigid-flex boards, high-frequency and high-speed boards.
We do not provide PCB design services. Our expertise lies in efficiently and reliably transforming customer-provided design files (Gerber, BOM, pick-and-place files, etc.) into manufacturable, high-quality products.
Our Services
OEM Manufacturing
With complete design files provided by customers, we manage the entire PCB fabrication and PCBA process:
DFM Review: Engineering validation of Gerber files before production—checking trace width and spacing, hole sizes, stack-up structure, impedance control, and other critical parameters to identify and resolve manufacturing risks early.
Production Resource Matching: Optimal production line allocation based on layer count, material type (FR4, high-frequency materials, metal-core, etc.), surface finish requirements (ENIG, OSP, HASL, etc.), and delivery schedule.
End-to-End Quality Control: Full-process monitoring from material cutting, lamination, drilling, and plating to solder mask, surface finishing, profiling, and electrical testing. Mandatory inspection hold points at critical stages, with 100% electrical testing on finished boards.
PCBA Assembly: Component sourcing, SMT placement, DIP insertion, AOI inspection, X-Ray inspection, ICT testing, functional testing (per customer requirements), assembly, and packaging.
Supply Chain Integration
Leveraging long-established supply chain partnerships, we offer:
Component Sourcing: BOM kitting services through reliable component channels, reducing customers' administrative costs of fragmented procurement.
Flexible Capacity Coordination: Agile capacity deployment across multiple manufacturing partners based on order volume, process complexity, and delivery urgency to ensure on-time delivery.
Cost Optimization Recommendations: Reference suggestions on material alternatives, panelization optimization, and surface finish selection to reduce costs without altering the original design.
Quality System
All manufacturing partners are certified with:
All products are RoHS and REACH compliant.
Each shipment includes a complete inspection report (impedance test, solderability test, cross-section analysis, etc.) with full traceability.
PCB Pattern Plating
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PCB Washing
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Developing
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Design For Manufacture
| Serial NO. | Procedure | Item | Manufacturing capability | ||
| Large volume (S<100 m²) | Middle volume (S<10 m²) | Prototype(S<1m²) | |||
| 1 | Inner layer (18um, 35um, 70um etc are finished copper. If not mentioned copper, finished 1oz is the default value ) | Min.isolation of layers | 0.1mm | 0.1mm | 0.06mm |
| 2 | Min.track and spacing | 5/5mil(18um) | 4/4mil(18um) | 3/3.5mil(18um) | |
| 3 | 5/5mil(35um) | 4/4mil(35um) | 3/4mil(35um) | ||
| 4 | 7/9mil(70um) | 6/8mil(70um) | 6/7mil(70um) | ||
| 5 | 9/11mil(105um) | 8/10mil(105um) | 8/9mil(105um) | ||
| 6 | 13/13mil(140um) | 12/12mil(140um) | 12/11mil(140um) | ||
| 7 | Min.distance from drill to conductor | 4 Layer 10mil,6 layer 10mil,8-12 layer 12mil | 4 layer 8mil,6 layer 8mil,8-12 layer 10mil,14-20 layer 14mil,22-32 layer 18mil | 4 layer 6mil,6 layer 6mil,8-14 layer 8mil,16-22 layer 12mil,24-32 layer 14mil | |
| 8 | Min.width of annular ring on inner layer | 4 Layer 10mil(35um),≥6 Layer 14mil(35um) | 4 Layer 8mil(35um),≥6 layer 12mil(35um) | 4 Layer 6mil(35um),≥6 Layer 10mil(35um) | |
| 9 | Inner layer isolation ring width(Min) | 10mil (35um) | 8mil (35um) | 6mil (35um) | |
| 10 | Min.via pad diameter | 20mil (35um) | 16mil (35um) | 16mil (35um) | |
| 11 | Min. distance from board edge to conductor(no copper exposured)(inner layer) | 14 mil(35um) | 12 mil(35um)) | 8 mil(35um) | |
| 12 | Maximum copper weight(Inner layer and outer layer) | 3 OZ( 105 um ) | 4 OZ ( 140 um ) | 6 OZ( 210 um ) | |
| 13 | Core with different copper foil on both sides | / | 18/35,35/70 um | 18/35,35/70 um | |
| 14 | Laminating | Tolerance of laminate thickness | ±10% PCB thick | ±10% PCB thick | ±8% PCB thick |
| 15 | Maximum laminate thickness | 4.0mm | 6.0mm | 7.0mm | |
| 16 | Laminate alignment accuracy | ≤±5 mil | ≤±4 mil | ≤±4 mil | |
| 17 | Drill (18um, 35um, 70um etc are finished copper. If not mentioned copper, finished 1oz is the default value ) | Min.drill bit diameter | 0.2 mm | 0.2 mm | 0.2 mm |
| 18 | Min.slot router diameter | 0.60 mm | 0.60 mm | 0.60 mm | |
| 19 | Min.tolerance of PTH slots | ±0.15mm | ±0.15mm | ±0.1mm | |
| 20 | Max.aspect ratio | 1:08 | 1:12 | 1:12 | |
| 21 | Hole tolerance | ±3mil | ±3mil | ±3mil | |
| 22 | Space of via to via | 6mil(same net),12mil(different net) | 6mil(same net),14mil(different net) | 4mil(same net),12mil(different net) | |
| 23 | Space of component hole to component hole | 12mil(same net),16mil(different net) | 12mil(same net),16mil(different net) | 10mil(same net),14mil(different net) | |
| 24 | Etching | Min.width of etching logo | 10mil(18um),12 mil (35um),12 mil(70um) | 8mil(18um),10mil(35um),12 mil(70um) | 6mil(18um),8 mil(35um),12mil(70um) |
| 25 | Etch factor | 1.6-2.2 | 1.6-2.2 | 1.6-2.2 | |
| 26 | Outer layer(18um, 35um, 70um etc are finished copper. If not mentioned copper, finished 1oz is the default value ) | Min.via pad diameter | 20mil | 16mil | 16mil |
| 27 | Min.BGA pad diameter | 12mil | 12mil | 10mil | |
| 28 | Min.track and spacing | 5/5mil(18um) | 4/4mil(18um) | 3/3.5mil(18um) | |
| 5/5mil(35um) | 4/4mil(35um) | 3/4mil(35um) | |||
| 7/9mil(70um) | 6/8mil(70um) | 6/7mil(70um) | |||
| 9/11mil(105um) | 8/10mil(105um) | 8/9mil(105um) | |||
| 13/13mil(140um) | 12/12mil(140um) | 12/11mil(140um) | |||
| 29 | Minimum grid | 10/10mil(35um) | 8/8mil(35um) | 4/8mil(35um) | |
| 30 | Min.space (conductor to pad, pad to pad) | 6mil(18um) | 5mil(18um) | 4mil(18um) | |
| 6mil(35um) | 5mil(35um) | 4mil(35um) | |||
| 9mil(70um) | 8mil(70um) | 7mil(70um) | |||
| 11mil(105um) | 10mil(105um) | 9mil(105um) | |||
| 13mil(140um) | 12mil(140um) | 11mil(140um) | |||
| 31 | Solder mask (18um, 35um, 70um etc are finished copper. If not mentioned copper, finished 1oz is the default value ) | Maximum via-plug diameter | 0.5mm | 0.5mm | 0.5mm |
| 32 | Min.width of solder mask bridge | Green:5mil(35um) | Green:4mil(35um) | Green:4mil(35um) | |
| 33 | Yellow:5mil(35um) | Yellow:4mil(35um) | Yellow:4mil(35um) | ||
| 34 | Blue:5mil(35um) | Blue:4mil(35um) | Blue:4mil(35um) | ||
| 35 | Black:6mil(35um) | Black:6mil(35um) | Black:6mil(35um) | ||
| 36 | White:6mil(35um) | White:6mil(35um) | White:6mil(35um) | ||
| 37 | All of Matt:6mil | All of Matt:6mil | All of Matt:6mil | ||
| 38 | Green:5mil(70um) | Green:4mil(70um) | Green:4mil(70um) | ||
| 39 | Yellow:5mil(70um) | Yellow:4mil(70um) | Yellow:4mil(70um) | ||
| 40 | Blue:5mil(70um) | Blue:4mil(70um) | Blue:4mil(70um) | ||
| 41 | Black:6mil(70um) | Black:6mil(70um) | Black:6mil(70um) | ||
| 42 | White:6mil(70um) | White:6mil(70um) | White:6mil(70um) | ||
| 43 | Open solder mask | 4mil(35um) | 4mil(35um) | 3mil(35um) | |
| 44 | Solder mask coverage | 4mil(35um) | 4mil(35um) | 3mil(35um) | |
| 45 | Min.width of solder mask text | 9mil(35um) | 9mil(35um) | 8mil(35um) | |
| 46 | Min.thickness of Solder mask | 9um(35um) | 9um(35um) | 9um(35um) | |
| 47 | Max.thickness of solder mask | 30um(35um) | 30um(35um) | 30um(35um) | |
| 48 | Silkscreen | Min.width of silkscreen text | 6mil | 6mil | 5mil |
| 49 | Min.height of silkscreen text | 35mil | 35mil | 30mil | |
| 50 | Min.space from silkscreen to pads | 6mil | 6mil | 5mil | |
| 51 | Colour of silkscreen | White, Black, Yellow | |||
| 52 | Carbon ink | Carbon ink covers conductor or pads | 14mil | 13mil | 12mil |
| 53 | Mid distance from carbon ink to pads | 12mil | 11mil | ||
Contact Person: Ms. Ivy Deng
Tel: 86-755-27374946
Fax: 86-755-27374848