PCB design layout

Based on our extensive track record, we provide optimal component layout and cost proposals from a manufacturing perspective, as well as solutions to customer issues and concerns

KYODEN leverages its handles 5,000 PCB design projects a year. We can handle all types of PCB ranging from single-sided to multilayer types, as well as IVH, buildup, and flexible PCBs.
Moreover, because our services are not biased towards any particular sector, we handle a wide range of fields including automotive, medical, and industrial machines. Our team of 100 designers with Printed Circuit Board Manufacturing Technician, Level 1 or Level 2 qualifications realize artwork design with short lead time in consideration of mass production efficiency.
We can make proposals based on assessment data available precisely because we are a manufacturer.

PCB design layout

List of CAD software

Category Tool name Manufacturer
PCB design layout CR-8000 Design Force Zuken
CR-8000 Board Designer Zuken
Allegro PCB Designer Cadence
OrCAD PCB Designer Cadence
Xpedition Layout SIEMENS
PADS SIEMENS
Manufacturing verification Valor NPI SIEMENS
DFM Center ADM Zuken
Viewer conversion XDF Interchanger Zuken
NDB Writer Sohwa&Sophia Technologies

We can also handle products in all sorts of fields

  • Aviation / Aerospace / Defense

    Aviation / Aerospace / Defense

  • Social Infrastructure / Energy

    Social Infrastructure / Energy

  • Medical / Healthcare

    Medical / Healthcare

  • Machines / Robotics

    Machines / Robotics

  • Measurement / Control

    Measurement / Control

  • AV / Broadcasting Devices

    AV / Broadcasting Devices

  • Automobiles / Transport Machines

    Automobiles / Transport Machines

  • Automatic and Service Devices

    Automatic and Service Devices

  • Servers, PCs / Peripheral Devices

    Servers, PCs / Peripheral Devices

  • Wired and Wireless Communication Devices

    Wired and Wireless Communication Devices

  • Disaster Prevention / Security

    Disaster Prevention / Security

  • Household Electrical Appliances

    Household Electrical Appliances

Leave High-density interconnect (“HDI”) design to KYODEN too

As the pitch of devices becomes increasingly narrow, many customers are faced with wiring difficulties.
In BGA/CSP packages, many of which increasingly have pitch of less than 0.4 mm recently, wiring is difficult in through-hole PCBs.

Because KYODEN manufactures High-density interconnect (“HDI”), we have abundant experience in designing such PCBs.
Laser via holes (LVH) used in High-density interconnect (“HDI”) have smaller diameters than drilled holes and are non-penetrating (penetrating only one layer), so they enable higher density mounting and more compact board sizes than through-hole boards and IVH PCBs.
They are also suitable for high-speed signal transmission, as via stubs can be avoided.

設計イメージ 設計イメージ

PTH PCBs

貫通基板

High-density interconnect (“HDI”)

ビルドアップ基板

Simulation

In development of electronic devices, one of the objectives of simulation is to “visualize things that are invisible to the eye.”
Full-time engineers, who also have experience of PCB design, leverage various types of simulation to provide high-quality PCBs.

シミュレーションイメージ

SI analysis

Pre-analysis

This is carried out before the board design. We examine the floor plan and construct a realistic design guide.
Layout of main components / Placement and values of passive components / Wiring layers, wiring lengths and connection methods / Device drive strength / Slew rate / Setting of interior termination

Post analysis

This is carried out using CAD data after the board design. If the specifications are deviated from, corrections are made to satisfy the requirements.
Signal quality verification / Delay and skew verification / Taking into account delay caused by vias and the difference in propagation speed between inner and outer layers

* Normally, handling is from post analysis, but pre-analysis can be handled if requested.

Before
Before
After
After

PI analysis

IR-Drop analysis (DC-Drop analysis)

Voltage drop in the power plane (pattern) is analyzed.
The maximum current consumption is assumed, and verification is performed to ensure that it is within the operating voltage range of the device.
If the specifications are deviated from, corrections are made to satisfy the requirements.

Before
Before
After
After

PDN Impedance analysis (decoupling analysis)

This is analysis with an aim of determining the effectiveness of bypass capacitors.
The input impedance seen from the power supply terminal of the device is analyzed, and the number, value, installation location, via design of the bypass capacitor, etc., are optimized.
Evaluation is performed in the frequency domain, and verification is performed using the target impedance as a guideline.

Before
Before
After
After

Electromagnetic field analysis

Highly precise analytical solutions are provided through the use of three-dimensional full-wave electromagnetic field analysis based on the finite element method, or a hybrid solver that incorporates the moment method.
Unlike SI analysis tools that handle transmission lines as equivalent circuits, the use of S-parameters in modeling takes frequency characteristics into account, enabling analysis that takes into account return paths, crosstalk, etc.

Before
Before
After
After

EMI suppression support

Plane resonance analysis

When resonance occurs between the power supply and GND planes in a multilayer board, EMI increases if the operating frequency in the circuit matches the resonance frequency.
Measures are taken to suppress these resonances.

EMI rule checking

The error screening function is used to identify the causes of EMI that have been made into rules, the necessary parts for countermeasures are extracted, and those are resolved at the PCB design stage.

Before
Before
After
After

Thermal fluid analysis

The device temperature on the PCB and the amount of heat generated by the current flowing through the wiring pattern and via are analyzed.
In addition to thermal fluid analysis with the PCB installed in the housing, the cooling effect of the heat sink and fan can also be analyzed.

Before
Before
After
After

List of CAD software

Category Tool name  Manufacturer
SI HyperLynx SI  SIEMENS
PI HyperLynx PI  SIEMENS
Electromagnetic field HFSS  Ansys
SIwave  Ansys
HyperLynx Full-Wave Solver  SIEMENS
EMI suppression DEMITASNX   NEC
Thermal fluid Simcenter Flotherm  SIEMENS
Simcenter Flotherm Pack  SIEMENS

Noise consulting

In AI, 5G, IoT and other fields concerned with electronics, transferred signals are becoming faster and of higher frequency.
KYODEN offers assistance for resolving “noise” issues that cause concern to the engineers that work with such technologies.

Have you ever experienced the following kinds of problems regarding noise?

  • Need to revise the
    design because the
    noise generated by
    the existing PCB is
    too large
  • Need to take care of
    noise even with a
    short development
    schedule
  • Need to take
    measures for the
    housing and cables
    and pass EMC
    testing
  • Need to solve noise
    issues from a third-
    party perspective

KYODEN will support you in solving these
noise-related problems!

KYODEN’s strengths in noise consulting and the benefits for customers

  • For the cost and time of PCB
    production plus a little extra,
    design that takes care of noise
    can be made.

    The cost of noise consulting alone will not
    exceed the cost of PCB production.

  • For development,
    support at any stage is possible
    (from component selection to EMC testing).

    It doesn’t matter whether you start
    from the circuit
    design stage
    or after the device has been made.

  • Even if
    there are no designers familiar
    with noise,
    design and countermeasures can be done.

    iNARTE/KEC EMC Senior Design
    Engineers provide strong support.

  • Know-how (thought process + results)
    as a
    deliverable
    is delivered.

    Deliverables include know-how
    and numerical values
    from the design
    and countermeasure processes.

  • In addition to PCBs, cables
    and mechanical parts
    are handled from a systems perspective.

  • Measures taken based on
    actual equipment
    are possible
    (moving your hands to get results).

Noise consulting by iNARTE EMC Engineers

(1) PCB noise-reducing design consulting

Proposals for noise countermeasures at the circuit diagram, component placement and wiring levels

基板低ノイズ化設計コンサルティングの流れ

(2) Noise countermeasures consulting

Countermeasure proposals examined on paper, countermeasures implemented on actual equipment and at the site, and on-site observation of testing

ノイズ対策コンサルティングの流れ

Circuit diagram input,
fair copy, BOM creation

Do you want to do your own circuit design, but don’t have the time or internal resources to input it into circuit diagram CAD?
KYODEN can also provide CAD input support.
In addition to converting hand-drawn circuit diagrams into CAD data, we can also merge reference boards with existing circuit diagrams, etc., regardless of whether they are new or revised, so please use us if you are having any problems.

■ Circuit diagram editors supported
  • OrCAD Capture
  • CR-8000 Design Gateway
Deliverable
- Circuit diagrams/netlists, BOMs, etc.

Parts library creation

We can also create parts libraries for use in PCB design.

  • If you provide us with just a BOM, we will register and provide the components by the manufacturer’s model number in the BOM.
  • We can provide libraries with layer structures that match your CAD environment.
  • CAD software we can provide in: BoardDesigner, Allegro
  • We have a parts library with over 190,000 parts, so we can provide them quickly.
  • We can also create libraries that match your footprint creation standards.

CONTACT

Please feel free to contact us.

We can meet your needs with total in-house production, from product planning and development to design, procurement, manufacturing, mounting, assembly, and delivery of finished products, as well as the manufacture of PCBs.
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