Wave Technology List of News Articles

The required performance of developed products is increasing year by year, leading to a more challenging thermal situation due to the need to make products thinner and smaller, as well as the addition of circuit functions (such as communication functions), which increases the heat sources. In response, our company has decided to provide a service to understand the presence of thermal issues and the difficulty of thermal design early in the design phase (thermal issue preventive diagnosis). This report explains "Product Performance Requirements and Thermal Issues" and "Contents of Thermal Issue Preventive Diagnosis." [Contents] ■ About Thermal Simulation ■ Product Performance Requirements and Thermal Issues ■ Contents of Thermal Issue Preventive Diagnosis

The type of substrate and manufacturing methods (such as subtractive methods, semi-additive methods, etc.) can result in differences between the design values and the finished values for wiring width and layer spacing. This report introduces the various types of substrates available. WTI offers a variety of substrate design and prototyping services. Please feel free to reach out to us. [Contents] ■ Types of substrates and their applications

This document introduces antennas, which are essential for communication devices. It includes topics such as "Antennas used in wireless communication devices," "Grounding (GND) is important for antennas!" and "Be careful with the circuit board when using patch antennas!" You can find more details in related products and catalogs.

This report introduces a board called M5stack, which is equipped with a Wi-Fi module called "ESP32," along with examples of its use. The method is super simple: search for Wi-Fi signals and display the acquired data on the screen. That's all there is to it. Please take a moment to read it. [Contents] ■ How to make a simple Wi-Fi checker ・ Recipe

The "power supply" is an essential component in electrical circuits. The "power supply" has functions such as converting voltage levels and converting alternating current to direct current, but I would like to talk about the frequently used "DC-DC converter." A "DC-DC converter" is a device that converts direct current into direct current at different voltage levels. While detailed design methods can be referenced in specialized books, this report will introduce key points for beginners when designing. [Contents] ■ Key points in circuit design

Without delay, I will talk about the metal enclosures I am currently involved in developing. There are various processing methods for creating metal enclosures, and the design techniques change depending on the processing method. This report briefly introduces the representative processing methods and design techniques for metal enclosures, so please take a moment to read it. [Contents] ■ Press bending processing ■ Deep drawing processing ■ Die casting

What kind of failures do you think of when it comes to semiconductor failures? First, you might think of damage caused by static electricity, right? Of course, optical semiconductors can also fail due to static electricity, but they can also fail due to light itself. In this report, I will explain a bit more about failures caused by light. [Contents] ■Failures caused by light

By changing the semiconductor material from Si to SiC (silicon carbide), the breakdown voltage of Schottky Barrier Diodes (SBD) has improved, making it possible to use them in DC/DC converters for PCS. While performance improves with SiC, cost issues have previously hindered widespread adoption. However, in the last year or two, cost challenges have been addressed, leading to an increase in usage opportunities. This report will briefly explain the types and characteristics of diodes. [Contents] ■ Types and characteristics of diodes

While circuit boards are essential for electronic devices, it seems that even those who have been responsible for circuit design and have always handled circuit boards may not be fully aware of the structure (types) of circuit board data. Therefore, we are introducing this information in the document. It includes an overview of the general flow from circuit board design to manufacturing, as well as the names and file extensions of major circuit board design CAD software. You can find more detailed information in related products and catalogs.

This report introduces the "characteristic impedance (wiring impedance)" of the circuit board. With the recent increase in the speed of digital signals, the design of circuit boards for digital circuits requires the concept of distributed constant circuits rather than lumped constant circuits, making it necessary to consider the characteristic impedance of the circuit board in the design. So, how do we determine the characteristic impedance of the circuit board? [Contents] ■ Characteristic impedance of the circuit board

This document introduces the use of "interface circuits" that make measurements more convenient, which our Custom Technology Department is working on. It includes images of the configuration of interface circuits (analog isolation circuit boards) and examples of our initiatives, as well as the provision of services centered around custom measurement keywords. You can find more details in related products and catalogs.

When designing for waterproofing, many people tend to focus solely on the gasket parts of the enclosure. In fact, the screw areas require even more attention than the main waterproof sections. Therefore, in this report, we discuss the screw structures in waterproof design and the important points to consider, addressing common questions that arise regularly. We provide more detailed information through related products and catalogs.

In WTI's circuit board design, we conduct various types of board designs, including large-scale circuit boards, multilayer wiring boards, high-density mounting boards, and flexible printed circuits (FPC). One of the most requested designs is for small, high-density mounting boards used in IoT devices and wearable devices. To reduce the size of products and lower the cost of circuit boards, it is common to adopt BGA packages for microcontrollers and FPGAs. In this report, we discuss "BGA circuit board design." You can find more details in related products and catalogs.

In this report, we will discuss the analysis methods for "BGA packages." "BGA" stands for "Ball Grid Array," which is a type of package for integrated circuits (ICs). In simple terms, it is a surface mount package that has electrodes (lands) on the substrate, with solder balls formed on top to connect to the electrodes on the package side. You can find more detailed information in related products and catalogs.

In this report, I would like to introduce the automatic control of measurement devices related to optical devices. For the functional verification of optical devices, multiple characteristics such as optical output, light reception sensitivity, and frequency characteristics are measured and evaluated. To evaluate these characteristics, many measurement devices are used, including DC power supplies, temperature controllers, and optical component analyzers. You can find more details in the related products and catalogs.

This report will focus on the response to the discontinuation of parts using "FPGA." Rather than replacing the parts themselves with "FPGA," we will introduce designs that implement measures for the discontinuation of liquid crystal panel production using "FPGA." If you need designs such as "I want to process high-speed serial communication data with FPGA" or "I want to process signals from sensors with FPGA for data transfer," please feel free to contact us. You can find more details in the related products and catalogs.

★★Shirutoku Report: Useful Information You Can Benefit From★★ Suddenly, do you all know about "reliability testing"? In brief, it is a collective term for various tests that evaluate the reliability (performance, durability, safety, failure rate, etc.) of a product. The main objectives are to confirm whether the performance meets the design specifications and to evaluate whether it meets market quality requirements. In this report, we will introduce one of the durability tests for power devices, known as the "power cycle test." For more details, please refer to the related products and catalogs.

★★Shirutoku Report: Useful Information You Can Benefit From★★ The most challenging aspect of program development for me has been the implementation of algorithms. There are many interesting algorithms, and recently I had the opportunity to explore Q-Learning, which is one of the reinforcement learning methods related to machine learning. I created a program (Cheese Puzzle Simulator) to demonstrate it. Q-Learning is an algorithm in reinforcement learning that is utilized in various fields, from autonomous driving to fintech. In this report, I would like to briefly introduce the Q-Learning algorithm. For more details, please refer to related products and catalogs.

★★Shirutoku Report: Useful Information You Can Benefit From★★ When you want to confirm characteristics while changing a certain parameter, "automatic measurement" is convenient. In this report, I would like to briefly explain how to perform "instrument control" necessary for automatic measurement. For more details, please refer to related products and catalogs.

★★Shirutoku Report: Useful Information You Can Benefit From★★ In daily life, we don't often think about it, but when the temperature changes, objects undergo thermal expansion and contraction. The magnitude of this expansion and contraction varies depending on the properties of each material (coefficient of linear expansion). In this report, we will discuss the thermal stress caused by this thermal expansion and contraction. For more details, please refer to related products and catalogs.

This report introduces the consideration of component placement. It is rare to use the circuit board alone; it is often housed in a case or connected to other devices. In the component placement consideration, we first position components that are structurally fixed, such as connectors and switches. Other components are also placed while paying attention to structural placement constraints (height limitations of components, prohibited areas for placement and wiring). You can find more details in related products and catalogs.

When developing a new product, many may have experienced the dilemma of whether to use a microcontroller or an FPGA. Additionally, a common conversation is whether to process with software or hardware. In this report, we will discuss the key points of system design. You can find more details in related products and catalogs.

In this report, I will discuss the key points when creating embedded software (firmware), specifically about ensuring real-time performance: "creating it to flow continuously." At WTI, we receive numerous contracts for embedded software development from our customers, and we develop with a focus on reliability and quality, including the principle of "flowing continuously." If you have any issues with software development, please contact WTI. You can find more details in related products and catalogs.

In the Software Design Department, we create a lot of embedded software to control dedicated circuit boards. In this report, I will discuss the key points when creating embedded software. The key point when creating embedded software is to ensure real-time performance: to create it in a way that it "flows continuously." You can find more details in related products and catalogs.

The power supply circuits handled in the power supply design course come in various circuit configurations, but if broadly classified, most of them fall under the category of switching power supplies. In this report, I will discuss the characteristics of switching power supplies. You can find more detailed information in related products and catalogs.

We mainly engage in the design of enclosures for outdoor installation products. Through this work, we often hear customers say, "It's hot, what should I do?" In this report, we will answer what can be done in such cases. You can find more details in related products and catalogs.

To create IoT devices with wireless communication capabilities from scratch, there are several technically challenging issues to address. As a means to more easily achieve wireless communication functionality, one option is to mount a wireless module on the circuit board. In this report, we will introduce wireless modules. You can find more details in related products and catalogs.

This document summarizes the WTI blog of Wave Technology Co., Ltd., which is engaged in the "Development Design Promotion Business" to solve the shortage of engineers, from February 1, 2022, to February 22, 2022. It includes topics such as "Experience SDGs Motors and Power Generation" from February 1, 2022, and "Challenge LIN Communication Using Infineon’s In-Vehicle Microcontroller Evaluation Board AURIX(TM) TC375 Lite kitV2! (Part 1)" from February 8, 2022. Additionally, it features a wealth of useful information regarding products and industries. We encourage you to read it. [Contents] ■ February 1, 2022: Experience SDGs Motors and Power Generation ■ February 8, 2022: Infineon’s In-Vehicle Microcontroller Evaluation Board - Challenge LIN Communication Using AURIX(TM) TC375 Lite kitV2! (Part 1) ■ February 15, 2022: Introduction to the Sale of Disassembly Investigation Reports♪ ■ February 22, 2022: Examples of Issues in Waterproof Design

We are offering an online course titled "Fundamentals of Power Devices." In response to customer feedback such as "I want to improve my skills since I have more time at home" and "I can't understand even when studying on my own," we have prepared both on-demand courses and live streaming courses. You will understand the structure and operating principles of power devices, as well as key points from datasheets. Additionally, we provide confirmation tests and detailed explanations from instructors. If you have any requests regarding online courses other than the ones mentioned above, please feel free to consult us. You can find more details in related products and catalogs.

We would like to introduce our "Wireless Power Transmission Demo Unit." A brightness sensor, temperature sensor, and receiving circuit are installed on a rotating table, allowing for wireless power transmission from the power transmission circuit to the receiving circuit. The power transmission circuit collects sensor information simultaneously with wireless power transmission. The sensors can be replaced with various types, making it possible to install them in locations where it was previously not feasible. You can find more details in related products and catalogs.

We would like to introduce our "High-Frequency Power Board." Using our wireless power evaluation high-frequency power board and reference antenna, you can confirm the operation of wireless power transmission. The high-frequency power board can output up to 50W, and with the reference antenna, it can operate with a load of 35W at a power transmission distance of 40mm. We can accommodate custom antenna designs according to your requirements. You can find more details in related products and catalogs.

We would like to introduce our "Wireless Power Transfer Demo Unit." The receiving circuit is installed underwater, and wireless power is transmitted through glass from the power transmission circuit to the receiving circuit. The power transmission circuit collects sensor information simultaneously with wireless power transfer. It can be applied to monitor the vacuum level of a vacuum chamber, as well as to monitor the temperature inside a constant temperature bath. You can find more details in related products and catalogs.

This document summarizes the WTI blog of Wave Technology Co., Ltd., which is engaged in the "Development and Design Promotion Business" to solve the shortage of engineers, from January 11, 2022, to January 25, 2022. It introduces topics such as "What is Needed for Assembling Semiconductor Packages" from January 11, 2022, "Inquiry Cases from Circuit Board Manufacturers" from January 18, 2022, and "The Birth of WTI's Navigation Character 'Namirin' Air POP Balloon!" from January 25, 2021. In addition, it includes a wealth of useful information related to products and industries. We encourage you to read it. [Contents] ■ January 11, 2022: "What is Needed for Assembling Semiconductor Packages" - PCB Design Edition ■ January 18, 2022: Inquiry Cases from Circuit Board Manufacturers - Adjustments in PCB Design are Necessary for the Manufacturing Process of Circuit Board Manufacturers ■ January 25, 2021: The Birth of WTI's Navigation Character "Namirin" Air POP Balloon!

This document summarizes the Tech Sherpa blog from January 8, 2021, to December 20, 2021. Starting with "Utilizing Experts is Recommended for Troublesome Issues" on January 8, 2021, it also includes "What is EMC Anyway? - Basic Definitions and History of EMC" on February 18, 2021, and "What Performance Tests Are There for Packaging Materials of Semiconductor Products?" on April 26, 2021. We provide detailed introductions using photos and diagrams. Please take a moment to read it. 【Contents (Excerpt)】 ■ January 8, 2021: Utilizing Experts is Recommended for Troublesome Issues ■ January 13, 2021: We will exhibit at the "International Logistics Comprehensive Exhibition 2021 in Aichi" ■ February 5, 2021: Would you like to investigate the design rules for semiconductor IC packages? ■ February 18, 2021: What is EMC Anyway? - Basic Definitions and History of EMC

This document summarizes the WTI blog of Wave Technology Co., Ltd., which is engaged in "development and design promotion business" to solve the shortage of engineers, from December 7, 2021, to December 28, 2021. It introduces topics such as "Discussion on Wi-Fi Communication Standards" from December 7, 2021, "Easy Spice Simulation with Behavior" from December 21, 2021, and "Introduction to Semiconductor Package Assembly Process: 'Wire Bond'" from December 28, 2021. In addition, it includes a wealth of useful information related to products and industries. Please take a moment to read it. [Contents] ■ December 7, 2021: Discussion on Wi-Fi Communication Standards ■ December 14, 2021: What Does Quality Assurance Do? - Fault Analysis Method FTA Edition ■ December 21, 2021: Easy Spice Simulation with Behavior ■ December 28, 2021: Introduction to Semiconductor Package Assembly Process: 'Wire Bond'

This document summarizes the president's blog of Wave Technology Co., Ltd., a "development design promotion business" that addresses the shortage of engineers, from July 7, 2021, to December 3, 2021. It features posts such as "Nice to meet you, I'm Nakano" from July 7, 2021, "What is WTI's proud training program?" from October 22, 2021, and "WTI's anechoic chamber has become even easier to use!" from December 3, 2021. Additionally, it includes a wealth of useful information related to products and industries. We encourage you to take a look. [Contents (excerpt)] ■ July 7, 2021: Nice to meet you, I'm Nakano ■ August 31, 2021: Are you prepared for regulations on chemical substances in products? ■ September 14, 2021: Technology is shifting from "enhancement" to "co-creation."

We are offering our "Radio Wave Anechoic Chamber Rental Service" at a special campaign price to celebrate its 5th anniversary. This rental service includes the "Simple Radio Wave Anechoic Chamber" and the "Electromagnetic Wave Visualization System." We also have a variety of noise countermeasure equipment, such as the "Electromagnetic Wave Visualization System" and the "Noise Terminal Voltage Measurement System." Please consider applying for this opportunity. 【Campaign Details】 ■ Price: 5,000 yen per hour (including tax) * An additional equipment usage training fee of 3,000 yen (including tax) is required. Customers who have used our service within the past year are exempt from this fee. ■ Options - Electromagnetic Wave Visualization System - Δ-type Power Supply Impedance Stabilization Circuit Network * For more details, please refer to the PDF document or feel free to contact us.