PCB Assembly
PCB Substrate Processing Capability
- Substrate Type：Normal PCB、HDI、Flex Board、Rigid-Flex Board...
- Material：Normal FR-4、HF/HS Materials、Polyimide...
- Layers：1~64
- Thickness：0.1mm~10mm
- Max Size：534*610mm
- Min Size：50mm*50mm
SMT Placement Accuracy and Process Capability
- Min BGA ：0.2mm
- Min BGA Pitch：0.15mm
- Max Aspec Ratio ：16:1
- PTH Diameter Tolerance ：±0.05mm.
- Minimum Solder Mask Bridge Width ：3mil（Green）、5mil（others）
- Bow and Twist ：≤0.5%
- Impedance Tolerance ：± 10%
- HDI：≤ 12L Any Layers HDI
- SMT Component Placement Accuracy：45μm@3σ（High-Speed Machines） ；25μm@3σ（General-Purpose Machines）
- Supported Component Sizes ：0.4mm×0.2mm×0.12mm~75mm×75mm×25mm
Testing and Quality Control
- Inspection Methods：ICT、FCT、AOI.
- Quality standard ：IPC-A-610 F and Customer Standards.
- IQC Pass Rate per Batch ：99.0%
- Solder Joint Defect Rate ：<0.01%
Special Processes & Surface Treatments
- Special Processes：Carbon Ink、Blue Glue、Long and Short Gold Fingers、Controlled Depth Drilling、Countersink Hole、Metalized Half-Hole、Plated Back Drill、Controlled Depth Routing for Blind Slot、POFV、
- Bell-Mouth Hole、Plated Filled Via.
- Surface Treatments：ENIG、HASL、Lead-Free HASL、OSP、Immersion Silver、Immersion Tin、ENEPIG、Gold Plating...
- Selective Surface Treatment：ENIG + OSP、ENIG + Gold Fingers、HASL (Leaded/Lead-free) + Gold Fingers、ENIG + HASL (Leaded/Lead-free)、ENIG + Selective Gold Plating、HASL (Leaded/Lead-free) + Selective Gold Plating
| Line | Process Flow | Loading Machine（YITHO） | PastePrinter（GKG） | SPI （Magic-ray） | NXT/M6（ FUJI） | AIMEX（ FUJI） | Reflow Oven （JT-ele） | AOI （Magic-ray） | Unloader （YITHO） |
| Line1 | R→L | YTUB250 | G9 + | / | NXT3 (H24S) *2 + M6 3(08M) *1 | / | JTR-1000 | / | / |
| Line2 | L→R | YTUB250 | G9 + | VSP3000 | NXT3 (H24S) *2 | AIMEX3 (H08M+H02F) C *1 | JTR-1000 | V5000H | YT-DBW |
| Line3 | R→L | YTUB250 | G9 + | VSP3000 | NXT3 (H24S) *4 | AIMEX3 (H08M+H02F) C *1 | JTR-1000 | V5000H | YT-DBW |
| Line4 | L→R | YTUB250 | G5 | VSP3000 | NXT3 (H24S) *6 | AIMEX3 (H08M+H02F) *1 + AIMEX3 C(H08M+H02F) *1 | JTR-1000 | V5000H | YT-DBW |
BQ-Circuit is a professional PCB and PCBA manufacturer dedicated to high-quality prototype and small-to-medium batch production.
© 2025 BQ-Circuit
Service Hours 0:00-12:00
Contact:Lillian Yan
Whats APP/ Teams/ Wechat:+86 13760153421
Contact:Carol Lv
Whats APP/ Teams/ Wechat:+86 13692173670
Contact: Rachel Fu
Whats APP/ Teams/ Wechat:+86 13418855617
Service Hours 12:00-24:00
Contact:Annie Stark
Whats APP/ Teams/ Wechat:+86 18883182783
Contact:Nikki Huang
Whats APP/ Teams/ Wechat:+86 19126042597
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