Gallery View: Further improvements in PCB assembly techniques

Global SourcesUpdated on 2023/12/01

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Manufacturers of PCB assemblies in China, the global hub for this key production process in the electronics industry, consider it paramount to fully meet the specific demands of customers around the world. In addition to assembly, they provide design, materials sourcing, testing, packaging and shipping services, and are investing continuously in technology and equipment upgrades.

Companies leverage China's mature electronics supply chain as an advantage to offer diverse options starting from PCBs. They welcome requests for single-double-sided and multilayer boards, which may be FR-4HDI, CEM and flexible kinds with HASL, ENIG, OSP, immersion gold, silver or tin, or flash gold surface finish.

Consistent with the objective to satisfy custom specifications, sources of main components, such as ICs, PCBs, passive components and connectors, are not limited to the domestic supply.

In terms of component placement, suppliers have the facilities to accommodate preferences for traditional THT, advanced SMT or mixed SMT and THT. Their range covers 0.2mm minimum IC pitch, 0201 chip size, 0.3mm minimum leg distance and 0.2mm uBGA diameter. By package type, SMT efficiency also extends to SOP, CSP, SSOP, PLCC, QFP, QFN, BGA and FBGA.

PCB assemblies are expected to benefit from the resumption of economic activities, which will boost demand from established markets such as the consumer electronics and communications sector. The trends for automation and electric vehicles will also be growth catalysts.


Based on up to48-layer PCB

Creat Electronic Group Co. Ltd's CEG2021 PCB assembly uses an FR-4, high-Tg FR-4, aluminum or flexible board with up to 48-layer count and HASL, ENIG, immersion tin or OSP surface finish. Available PCB colors are green, white, black, red, blue and yellow.

The minimum order is one unit. Lead time is 15 days.

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High-frequency PCB option

Creat Electronic Group Co. Ltd markets this CEG2021010 PCB assembly based on an aluminum, flexible or high-frequency board with up to 48 layers and HASL, ENIG, immersion tin or OSP surface finish. Laminate material may be FR-4 or high-Tg FR-4, depending on the requirement. PCB color options are green, white, black, red, blue and yellow.

An order of one unit is accepted and has a 15-day lead time.

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For industrial control boards

This PCBA-01 PCB assembly from Shenzhen Vipsten Electronic Co. Ltd is suitable for industrial control boards. The negotiable order quantity has a lead time of 30 days.

The manufacturer offers full turnkey services.

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Full turnkey service

Shenzhen Vipsten Electronic Co. Ltd offers a full turnkey service, which includes this PCBA-02 PCB assembly for industrial control boards.

Order quantity is negotiable. Delivery takes 30 days.

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SMT & THT

From Tortai Technologies Co. Ltd, this TT-17190 PCB assembly consists of fine-pitch BGA and QFN components as small as 0201, with up to 0.787in height and placed via SMT and THT. Conformal coating is included. A high-TG single or multilayer PCB with buried and blind holes, and impedance control is used. Board size is 0.2x0.2in to 25.2x24in. IC programming, AOI, X-ray and visual inspection, function testing and ICT are done. Order volume is negotiable. Lead time is 10 days.

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0201, fine-pitch components

Based on a single or multilayer FR-4 or flexible board with impedance control, this GS-062-0593 PCB assembly from Tortai Technologies Co. Ltd has fine-pitch, up to 0201 BGA and QFN components placed using SMT and THT. The unit, with conformal coating, undergoes IC programming, and AOI, X-ray and visual inspection, function testing and ICT. Order quantity is negotiable. Delivery takes 10 days.

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