About Us
WELLER is a leading Electronic Manufacturing Services provider that specializes in high-density PCB Design/Layout, high-quality PCB Manufacturing & Assembly, and Cable & Wire-Harness solutions. We deliver global turnkey solutions, ensuring seamless migration from design to production. Leveraging advanced technology and rigorous quality standards, we support customers across electrical/electronic manufacturing and injection-molded plastics industries.
Moved to a new manufacturing facility, strengthening our competitiveness in High-Mix&Low-Volume (HMLV) electronics manufacturing.
Invested the new SMT machine equipment.
Received ISO 9001: 2015 certification upgrade.
PCB assembly division WELLER found.
Hong Kong and U.S. Sales Representative Offices Officially Launched
Focus on multi-layer PCB fabrication from 4L up to 10L, and started HDI PCB fabrication (1+n+1) with micro-via holes by laser drilling.
Started rigid PCB fabrication from 2L up to 10L.
086 (0755) 2828 2776
Don’t hesitate, contact us to start discussing your projects. We prioritize your inquiries and aim to respond within 12 hours.
We work best when cooperated with our clients at the early concept development stage. Together we explore multiple approaches to obtain the best technical and commercial solution with a quick time-to-market.
WELLER offers a broad range of capabilities that supporting behind our customers: A talented engineering staff with electronics manufacturing background, a broad range of capital manufacturing equipment, and the ability to develop new manufacturing process. We are continuously improving to our capabilities, enabling us to develop and deliver solutions that would typically require managing multiple suppliers.
Our experienced engineering and production technicians in the electronic manufacturing industry, as well as experienced procurement engineers, enable us to know and understand how to help customers optimize design and save costs; our in house manufacturing can help customers shorten manufacturing time and launch the product in turn quick time-to-market.
The client and WELLER discuss and collect the primary requirements and goals for the project. Typically an NDA is executed before starting, followed by communications (by e-mail/web/phone/instant message tooling) to gather up the various details, which can include the following:
Whether you have a new idea to create from the ground up, or want to optimize upon an existing product, WELLER’s talented team has developed processes to efficiently progress through each stage of a project to quickly deliver the most cost-effective modules that fully meet your technical requirements.
WELLER’s Feasibility Evaluation Framework provides de-risked project launch: Our phase-gated engineering analysis delivers validated technical/commercial insights, featuring these key outputs:
This phase can be iterative and concludes when the clients and WELLER agree on a technically and commercially acceptable approach to developing the desired end product.
WELLER will generate a proposal for development and production supply. At this phase, some development costs and production pricing may still be preliminary and subject to change. The project proceeds upon receipt of purchase order and agreement from customer.
It is very important that final design requirements are provided by customer before beginning the detailed design phase. The following are activities that are commonly involved:
3.1 Schematic diagram development, component selection, firmware design, or software creating (as required).
3.2 Printed circuit board/substrate layout and stack-up design.
3.3 Mechanical design and materials selection, physical product design.
3.4 Signal integrity simulation and thermal analysis (as required).
3.5 Preliminary production process evaluation.
3.6 Internal design reviews including manufacture-ability, reliability and comprehensive testing.
3.7 Client design reviews at the appropriate key design milestones. It is not uncommon to have weekly project coordination for complex projects during the design phase.
WELLER will fabricate the printed circuit boards, source components, and assemble the first prototypes.
If relevant production test assets (e.g., firmware, software, procedures) are fully or partially available, WELLER will test the prototypes.
Design validation can be directly done in-house by WELLER or by the customer, as agreed
Note: In some projects, particularly those involving multiple bare die, WELLER and customer may agree that a dual-stage prototype approach may be taken. For example, a quick prototype build using all packaged parts may be quickly designed and built so that the hardware design can be validated and software work can begin before the final production design using bare die is available.
Depending on the complexity of the manufacturing process, ISI may engage in multiple small pre-production builds to fine-tune the manufacturing process and increase production yield.
WELLER can quickly ramp to production volumes. We utilize the same process and equipment for production parts that was developed during the prototype and pre-production builds.
Our ISO 9001:2015 certified manufacturing facility operates to IPC Class 3 standards with in-house IPC-certified operators, ensuring the highest level of quality and reliability in our production processes.
All materials used by WELLER must be UL-certified and fully traceable.
WELLER’s manufacturing facilities are audited and approved by leading smart electronics companies across Europe and North America.
The aerospace and defense industries demand complex specifications, rigorous production processes, and the highest compliance standards. WELLER delivers precision manufacturing to meet these critical requirements—ensuring your product performs as intended.
Our ISO 13485-compliant operations, experienced engineering team, advanced SMT equipment, and high-grade production facilities enable us to deliver a full range of high-quality, compliant PCB fabrication and assembly solutions for the medical device industry.
Our rigorous quality commitment delivers measurable value to customers, as demonstrated by our IATF 16949 certification. With deep expertise in automotive industry standards—including Advanced Product Quality Planning (APQP) and Production Part Approval Process (PPAP)—we ensure full compliance with our customers' most demanding requirements.
New 5G networks and satellite communication systems demand hardware that optimizes bandwidth while ensuring secure, reliable connectivity. WELLER's experienced engineering team designs and delivers communication hardware solutions that meet the industry's rapidly evolving requirements.
Across the energy market—from Clean Energy and Smart Energy to traditional Oil & Gas—WELLER leverages its unique design and manufacturing expertise to optimize electronic devices for the sector. Our solutions deliver enhanced performance and value, empowering the industry to navigate rapid transformation.
We bring extensive experience in designing industrial and commercial electronic products. Our Embedded Systems team offers both ready-made solutions and the specialized expertise needed to develop custom solutions tailored to your requirements.
For over a decade as a trusted EMS provider, we’ve specialized in serving niche consumer device markets. WELLER focuses not only on delivering superior quality and reliability but also on maintaining cost competitiveness.
Whether you're developing a new system or re-designing an obsolete product, our team of experienced electronics engineers and technicians offers two flexible approaches: full turnkey design implementation to your exact specifications, or collaborative development of specific subsystems with your team.
