東京都港区 PCB設計会社 東和サーキット マスコット

ABOUT東和サーキットについて

Why Choose
Towa Circuit

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基板 沿面距離 Flexible PCB Design

Flexible PCB Design

Our customers often praise us for our "responsiveness," "flexibility," "speed," and "support." These qualities stem from our commitment to being a trusted development partner who stands by our clients’ aspirations to create better products. Whether it’s sudden specification changes or shortened lead times, we strive to accommodate all requests to the best of our ability. To achieve this, we continuously enhance our problem-solving capabilities and proposal skills, ensuring we’re ready to meet any challenge.

基板 沿面距離 Extensive Experience and Expertise

Extensive Experience and Expertise

As a team of seasoned design professionals, we leverage both time-honored and state-of-the-art design techniques and tools. Our goal is to deliver high-quality PCB designs by combining expert craftsmanship with the latest advancements in technology. In the ever-evolving electronics industry, we remain committed to meeting customer demands and adapting to the latest standards. Our approach prioritizes understanding customer requirements and pursuing optimal designs in terms of reliability, performance, and cost-efficiency. From the project’s initial stages, we work closely with clients to understand their needs, validate designs, and exceed expectations.

基板 沿面距離 One-Stop Service

One-Stop Service

Have you ever thought, “I want to create something like this, but I’m not sure who can handle it for me” or “I haven’t finalized the detailed specifications yet, but I need some proposals”? We understand the desire to leave the entire process in capable hands, and we’re here to help bring your vision to life through our one-stop service. By partnering with experts in every stage of the process, we provide the best possible solutions. From circuit design, PCB design/manufacturing, component procurement/assembly, and enclosure design/manufacturing to wiring integration, we’ve got you covered. No matter the complexity or uncertainty, feel free to consult with us. Drawing on our extensive experience, we are fully committed to supporting you every step of the way and turning your ideas into reality.

Maintain High Quality
FiveKeyPoints to

〜Ensuring the Basics are Done Right〜

基板 沿面距離 必要十分な領域を確保する。ただし、領域を広く取り過ぎるとノイズの発生源となるため、セパレートラインやビアの配置を考慮して調整(DEMITASNXによる共振解析も導入)

Power Layer
(Resonance Analysis)

Ensure sufficient area is allocated. However, if the area is too large, it may become a source of noise. Adjust by considering separation lines and via placement (resonance analysis using DEMITASNX is also implemented).
基板 沿面距離 For multiple capacitors with different values, place the smaller ones closer to the pins. The routing should pass through the decoupling capacitors to the power pins (for BGA, place them near the supply vias).

Position of Decoupling Capacitors
(Placed Close to Power Pins)

For multiple capacitors with different values, place the smaller ones closer to the pins. The routing should pass through the decoupling capacitors to the power pins (for BGA, place them near the supply vias).
基板 沿面距離 Add a GND guard to the clock lines. For differential, paired, or matched-length routing, consider pattern width and spacing. Verify these with routing reports. For serpentine routing, ensure a spacing of 2W or more.

Condition Routing
(Pattern Gap)

Add a GND guard to the clock lines. For differential, paired, or matched-length routing, consider pattern width and spacing. Verify these with routing reports. For serpentine routing, ensure a spacing of 2W or more.
基板 沿面距離 Follow the device datasheet precisely. Carefully consider current and voltage values to set the pattern width, number of vias, and spacing.

Power Section Placement and Routing
(1A Current -> 1mm Width or More)

Follow the device datasheet precisely. Carefully consider current and voltage values to set the pattern width, number of vias, and spacing.
基板 沿面距離 Review the calculated values proposed by the PCB manufacturing factory and route with feasible settings. (Measurements using test pieces).

Impedance Line
(Line Width and Spacing (Adjacent Gap))

Review the calculated values proposed by the PCB manufacturing factory and route with feasible settings.
(Measurements using test pieces).
基板 沿面距離 漕いでさん協業会社大募集
基板 沿面距離 漕いでさん実物

Our in-house developed product, “Koide-san” (Trademark Registered), is a device that connects to a bicycle hub dynamo to charge smartphones, mobile phones, and other devices. We are seeking companies interested in developing a dynamo capable of generating power even while the bicycle is stationary. In times of emergency or natural disasters, as long as a bicycle is available, this device enables charging of smartphones and mobile phones, providing peace of mind during such critical situations.