As circuit design becomes increasingly complex and high-speed, how to ensure the integrity of various signals (especially high-speed signals), that is, to ensure signal quality, has becomes a problem.At this point, will take advantage of transmission line theory to analyze. Control signal characteristic impedance matching becomes the key point. Non-strict impedance control will cause considerable signal reflections and signal distortions, leading to design failures. Common signals such as PCI bu...
Anson Bao
Mar 06,2018
1612 views
Good news !!! Now you can redeem ARDUINO UNO REV3 in PCBWay website:Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get start...
Anson Bao
Mar 05,2018
1132 views
Good news !!! Now you can redeem RASPBERRY PI in PCBWay website:1.Raspberry Pi ZeroTECHNICAL SPECIFICATIONS:The Raspberry Pi Zero is half the size of a Model A+, with twice the utility. A tiny Raspberry Pi that’s affordable enough for any project!1GHz single-core CPU512MB RAMMini HDMI portMicro USB OTG portMicro USB powerHAT-compatible 40-pin headerComposite video and reset headersCSI camera connector (v1.3 only)2.Raspberry Pi Zero WTechnical Specifications:The Raspberry Pi Zero W extends the Pi...
Anson Bao
Mar 05,2018
1694 views
Automated optical inspection (AOI) is an automated visual inspection of printed circuit board manufacture where a camera autonomously scans the device under test for both catastrophic failure (such as missing component) and quality defects.It is commonly used in the manufacturing process because it is a non-contact test method. This guarantees the high reliability of Multi-CB multilayer circuit boards.It is especially important for the following application areas:l Line width violationsl Spaci...
Anson Bao
Mar 01,2018
1424 views
High density interconnect (HDI) PCB, represent one of the fastest growing technologies in PCBs. Because of its higher circuitry density than traditional circuit boards, the HDI PCB design is able to incorporate smaller vias and capture pads, and higher connection pad densities. HDI Boards contain blind and buried vias and often contain micro vias of 0.006 or less in diameter. By using HDI technology, designers now have the ability to place more components on both sides of the raw PCB if desired....
Anson Bao
Mar 01,2018
1770 views
What is PCB?A printed circuit board (PCB)mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. Components are generally soldered on the PCB.-Printed circuit boards are used in all but the simplest electronic products. They are also used in some electrical products, such as passive switch boxes. The base pcb material (CCL-Copper Clad Laminate) is a composite materi...
Anson Bao
Mar 01,2018
1397 views
Gold plating: Gold plating is a method of depositing a thin layer of gold onto the surface of another metal through plating way. The gold particles attached to the pcb, as strong adhesion also known as hard gold. The gold finger of memory bank is hard gold and abrasion resistant. Immersion gold: Immersion gold through chemical reaction to make gold particles attached to pcb. As weak adhesion it is also known as soft gold.Why use gold plating?As IC become more and more integrated and IC pins are ...
Anson Bao
Mar 01,2018
3684 views
A ball grid array (BGA) is a type of surface-mount packaging used for integrated circuits. BGA packages are used to permanently mount devices such as microprocessors. A BGA can provide more interconnection pins than can be put on a dual in-line or flat package, each pin is provided with a solder ball. All connections are distributed in a uniform surface grid or matrix on the component. The whole bottom surface of the device can be used instead of just the perimeter. The leads are also on average...
Anson Bao
Mar 01,2018
1100 views
SMD Adhesive is also called Surface Mount Adhesive.Before soldering, components with pin contacts or SMDs are often bonded to the PCB with adhesive. This allows, for example, several capacitors, electrolytic capacitors and coils to be positioned on a circuit board and cured within just a few seconds to prevent their falling over or sliding out of position on the PCB. The secured components can then be reflow-soldered in a single work step, which saves time and speeds up production. The SMD adhes...
PCBWay
Feb 28,2018
1393 views
Combine Automatic optical alignment system and the traditional flying needle machine together,with the help of image-processing software and flying-pin-only cameras, flying probe test is easier and more accurate.The electronic test for circuit boards is performed after manufactured. All the pcb manufactured by PCBWay must be checked with flying probe test. The layout is analysed according to the pcb file for short circuits and interruptions. This is important because only the E-test detects inco...
Anson Bao
Feb 28,2018
868 views
PCB surface finish is a coating between a component and a bare board PCB. It is applied for two basic reasons: to ensure solderability, and to protect exposed copper circuitry. As there are many types of surface finishes,selecting the right one is no easy task, especially as surface mounts have become more complex and regulations such as RoHS and WEEE have changed industry standards.HASL(Hot Air Solder Leveling) / Lead Free HASLHASL is the predominant surface finish used in the industry. The pro...
PCBWay
Feb 28,2018
1473 views
Flexible PCB (also variously referred to around the globe as flex circuits, flexible printed circuit boards, flex print, flexi-circuits) are members of electronic and interconnection family. They consist of a thin insulating polymer film having conductive circuit patterns affixed thereto and typically supplied with a thin polymer coating to protect the conductor circuits. The technology has been used for interconnecting electronic devices since the 1950s in one form or another. It is now one of ...
PCBWay
Feb 28,2018
1912 views
Rigid-Flex printed circuit boards are boards using a combination of flexible and rigid board technologies in an application. Most rigid flex boards consist of multiple layers of flexible circuit substrates attached to one or more rigid boards externally and/or internally, depending upon the design of the application. The flexible substrates are designed to be in a constant state of flex and are usually formed into the flexed curve during manufacturing or installation.Rigid-Flex designs are more ...
PCBWay
Feb 28,2018
1826 views
What is Aluminum PCB?Among all Metal core PCBs, Aluminum PCBs is the most common type - the base material consists of aluminum core with standard FR4. It features a thermal clad layer that dissipates heat in a highly efficient manner, while cooling components and increasing the overall performance of the products. Currently, Aluminum Backed PCBs is regarded as the solution to high power and tight tolerance applications. Price ComparesFR-4 PCB is a very conventional PCB type of electronic industr...
PCBWay
Feb 28,2018
3031 views
Plated half holes（castellated holes）are holes that made off the edge of the boards plated withcopper using a specialized process. It is predominantly used for board-on-board connections, mostly where two printed circuit boards with different technologies are combined.Through connecting the PCBs together directly, the whole system is considerably thinner than a comparable connection with multi-pin connectors. The plated edges are also useful in producing mini PCB modules. Plated half holes are av...
PCBWay
Feb 26,2018
2672 views
The Glass Transition Temperature (Tg) is one of the most important properties of any epoxy and is the temperature region where the polymer transitions from a hard, glassy material to a soft, rubbery material.Circuit board material must flame-resistant, it can’t be burned at a certain temperature and only be soften. The temperature point is called the glass transition temperature (Tg).The higher Tg point means higher temperature requirement during lamination. And the boards will be hard and crisp...
Anson Bao
Feb 26,2018
2080 views
Thank you very much for your enthusiastic participation and support “share your video story with PCBWay”activity. In this competition we received total 54 videos, the video shows all kinds of projects and it’s very interesting. The originally scheduled to announce the result is on 6th,Feb. Considering there are so many god videos, at last we add two Merit prize and delay the result to 7th,Feb. Now let's see who won the prize.The 1st prize winner is Bugra from Turkey, the award is $350 cash+$...
Anson Bao
Feb 09,2018
634 views
We are excited to announce our new Sponsorship of Maker Faire NoVa with NOVA Labs a 10,000 sq-ft non-profit community maker space in Reston, VA. This year, it is targeting 150 exhibitors and 6,000-7,000 attendees! It’ll reach over 150,000 people through outreach efforts on our website, social media and traditional media. We invite you to join us on Sunday, March 18, 2018 from 11am – 5pm at George Mason University in Fairfax, Virginia.
PCBWay
Feb 09,2018
745 views
In order to regulate behavior of employees better and improve the operating skills of employees. To inspire the enthusiasm of employees and create good atmosphere that learn from each other, the SMT department of PCBWay held the first employee skill contest. We set up a review team, developed the corresponding competition rules and rewards.The competition is divided into silkscreen, SMT, THT(Through Hole Technology) three groups. There are total 46 staffs participate in the competition. The winn...
Anson Bao
Feb 02,2018
1102 views
HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package. From 2cm to 400 cm or 1" to 13 feet. It operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It comes complete with ultrasonic transmitter and receiver module". Module m...
PCBWay
Feb 02,2018
1119 views
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Support | 4 |
| 2 | Engineer | 2 |
| 3 | Engineer | 1 |
| 4 | John Fitter | 1 |
