Boosting Placement Capability in PCB Assemblies

To meet diverse requirements in orders for PCB assemblies, Chinese manufacturers continue to invest in state-of-the-art production and test equipment, sourced both domestically and abroad. This is to increase their presence in the high-end electronics market, mainly industrial robotics, automotive electronics and IoT devices.

Current capability spans placement of components using through-hole and SMT processes on various PCB types, from single- and double-sided to rigid-flex, flexible and multilayer boards. As small as 0201 components can be mounted, with minimum pin spacing of ICs and BGAs as tight as 0.1mm and maximum precision of IC assemblies at ±0.01mm. For assembly checking, bridge testing, AOI, X-ray, and in-circuit (ICT) and functional circuit (FCT) testing are commonly used.

As for PCBs, ICs and other electronic components, they are usually purchased from domestic or foreign sources. Some PCBA companies offer their own PCBs to their customers.

Chinese suppliers cater mainly to the demand for PCB assemblies in the consumer electronics, communications, medical, automotive and industrial markets. As such, they ensure products are RoHS-compliant and manufactured in facilities with ISO 9001, 14001 or ISO/TS 16969 certification.

China is one of the largest production bases for this category, with a total market scale that could reach $56.4 billion by the end of 2023, according to Gongyan Consulting.

PCB assembly, undergoes ICT, FCT

Company: Shenzhen Landztop Technology Co. Ltd

The PCBA-23-7-18-36 from Shenzhen Landztop is made using 1206, 0805 and 0603 components and SMT and through-hole methods. This PCB assembly undergoes ICT and FCT. It meets UL, CE, FCC and RoHS standards.

MOQ: Negotiable

Lead time: 10 days

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PCB assembly with up to 0603 chip components

Company: Shenzhen Landztop Technology Co. Ltd

Shenzhen Landztop uses SMT and through-hole methods in completing the PCBA-23-7-18-34. It can mount chip components as small as 0603. This PCB assembly is subjected to ICT and FCT. It conforms to UL, CE, FCC and RoHS requirements.

MOQ: Negotiable

Lead time: 10 days

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PCB assembly with high-Tg PCB, 0201 components

Company: Shenzhen STHL Technology Co. Ltd

The STHL-PCB-A17-3239-2723 has a 0.2x02in to 25.2x24in high-Tg PCB with buried and blind holes and impedance control and up to 0201 components mounted using THT and SMT. It is RoHS-compliant. Shenzhen STHL offers IC programming and uses AOI, X-ray, functional testing, ICT and visual inspection.

MOQ: 5 units

Lead time: 7 days

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PCB assembly, up to 0.787in component height

Company: Shenzhen STHL Technology Co. Ltd

The STHL-PCB-A14-7915-3974 from Shenzhen STHL has a high-Tg PCB with impedance control and components as small as 0201 and with up to 0.787in height mounted using THT and SMT. This RoHS-compliant unit undergoes IC programming, AOI, X-ray, functional testing, ICT and visual inspection.

MOQ: 5 units

Lead time: 7 days

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PCB assembly, 0.2 to 6mm-thick PCB

Company: Syhogy (Xiamen) Tech Co. Ltd

Syhogy’s PCBA-1001 is based on an aluminum, FR-4 or CEM-1 PCB with a UL94V-0 rating. The board used is 0.2 to 6mm in thickness, depending on the requirement, with copper thickness ranging from 0.5 to 5oz.

MOQ: 1,000 units

Lead time: 7 days

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Humidifier PCB assembly

Company: Syhogy (Xiamen) Tech Co. Ltd

Syhogy’s PCB assembly for humidifiers, the PCBA-1009, has components mounted on an aluminum, FR-4 or CEM-1 UL94V-0-rated PCB with thickness ranging from 0.2 to 6mm. Copper used is 0.5 to 5oz.

MOQ: 1,000 units

Lead time: 7 days

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