Frequently asked questions
What types of products does JS Circuit manufacture?
JS Circuit manufactures flexible PCBs (FPC), rigid-flex PCBs, rigid PCBs, HDI boards, and provides integrated PCBA services, supporting customers from bare board fabrication to assembled electronic products.
What are your core product strengths?
Our core strengths lie in flex and rigid-flex manufacturing, where bend reliability, process stability, and assembly compatibility are critical—especially for medical and high-reliability electronics.
What layer structures can you support?
We support single-layer, double-layer, and multi-layer flexible circuits, as well as complex multi-layer rigid-flex structures, depending on electrical and mechanical requirements.
Do you support HDI and fine-pitch designs?
Yes. We support HDI structures, including fine line/space layouts and high-density interconnect designs used in compact medical and industrial devices.
Are your products suitable for medical devices?
Yes. Many of our products are used in medical electronics, where reliability, traceability, and process consistency are essential throughout the product lifecycle.
Can your flex circuits withstand long-term or dynamic bending?
Yes. We support both static flex and dynamic flex applications, with design and process controls adjusted for bending radius, frequency, and mechanical stress.
How do you control reliability in flex bend areas?
We apply bend-zone DFM review, controlled processes, micro-section analysis, AOI, and electrical testing, focusing on copper integrity and adhesion stability.
Are your products suitable for life-critical or long-term use?
Our processes are designed for stable and repeatable performance, making our products suitable for long-term medical and industrial applications when properly designed.
Do you provide DFM or engineering support?
Yes. We provide engineering-led DFM reviews, covering stack-ups, layout risks, bend zones, impedance, and assembly considerations to reduce re-spins.
Can you support prototyping and small-batch production?
Yes. We support rapid prototyping and small-batch builds, helping customers validate designs before scaling.
Can you scale from prototype to volume production?
Yes. Our workflows are designed to maintain prototype-to-volume consistency, reducing risk during scale-up.
Do you offer PCB assembly (PCBA)?
Yes. We provide SMT assembly, component sourcing, inspection, and testing, delivering complete PCBA solutions.
How do you ensure product quality?
Quality is ensured through controlled processes, in-process inspections, AOI, and electrical testing, aligned with medical manufacturing expectations.
Is material and process traceability maintained?
Yes. We maintain lot-level material traceability and production records, supporting audits and incoming quality control.
Are your processes aligned with medical standards?
Our manufacturing processes are ISO 13485–aligned, supporting medical device quality management requirements.
What payment methods do you accept?
We accept standard international B2B payment methods, primarily bank wire transfer (T/T).
Are payment terms the same for all customers?
Payment terms are confirmed during quotation. Long-term or repeat customers may discuss flexible arrangements.
What shipping methods are available?
We support international express courier services, air freight, and other logistics options, depending on urgency and destination.
Do you ship regularly to the U.S. and Europe?
Yes. We ship frequently to North America and Europe, with logistics processes familiar with international delivery requirements.
How is delivery lead time managed?
Shipping is coordinated closely with production completion, and tracking information is provided after dispatch.
How are PCBs and flex circuits packaged?
Products are packaged using anti-static materials, protective separation, and reinforced cartons to prevent ESD, bending, and transport damage.
Can you support custom packaging or labeling?
Yes. We support custom packaging, labeling, and lot identification, especially for medical and regulated supply chains.
What if there is shipping damage or delivery issues?
Customers should contact us immediately. We assist with investigation, documentation, and corrective action to minimize disruption.
How do you handle quality or quantity discrepancies?
Any discrepancy is reviewed promptly using production and shipment records, with corrective support provided as needed.
Who should I contact for technical or order-related questions?
Customers can contact their assigned sales or engineering support, who coordinate internally across production, quality, and logistics teams.
Engineering Assurance
Process Discipline
ISO 13485–aligned workflows, controlled materials, and standardized inspections ensure every build follows the same verified process—from prototype to volume.
Engineering Accountability
Engineering-led DFM reviews, bend-zone validation, and traceability-ready documentation help reduce re-spins and support audits with confidence.
Quick Answers Before You Ask
Medical Program Readiness
Four proof points buyers check first: process control, traceability, inspection, and engineering support.
ISO 13485–Aligned Control
Process discipline built for medical electronics.
Lot Material Traceability
PI/Cu/coverlay tracked by batch records.
AOI + Electrical Test
Inspection and test as standard workflow.
Engineering-Led DFM
Stack-up, bend-zone, assembly risk review.
Need a Reliable Flex or Rigid-Flex Build?
Talk to our engineers about stack-up, bend zones, testing, and traceability.
