Tomorrow March 8th, 2020 will be the Women’s Day! As it’ll be Sunday, so everyone in Best Technology get the gift today: One box of facial mask, one bottle of eye cream, and one bottle of moisturizer
We hope every lady in Best Technology keep happy, beautiful,
while they’re working so hard, even working in middle night, in order to give
our customers immediate reply. This is one of reason why you can see email reply
within one hour sometimes even in the evening!
It’s the first time that every girl in Best Technology take a photo with a face mask! Everyone in Best Technology want the Coronavirus to be finished ASAP, so that everyone doesn’t need to have a face mask and global economic turn back to normal level. At that time, we can take a photo again so that you can see the smiling face of our girls😊 and we believe that day will come in soon!
If you want to ask some information about our product (FR4 PCB, metal core PCB, ceramic PCB, PCBA) or service, you’re welcome to send email or call us anytime!
This is another test for China and the world community
after SARS. At this moment, any slamming, taunting, fanning, and gloating are
all manifestations of lack of humanity. The virus does not recognize the
country, nation, race, rich or poor. There is no difference in virus
transmission.
China’s powerful system and the
effective measures it has taken to prevent and control novel
coronavirus-related pneumonia are rarely seen in the world, Director-General of
the United Nations’ World Health Organization Tedros Adhanom Ghebreyesus said
on Tuesday.
Ghebreyesus made the remarks while
meeting with State Councilor and Foreign Minister Wang Yi in Beijing.
The WHO and the international
community highly appreciates, and fully affirms the decisive measures the
Chinese government has taken to deal with the outbreak and also thank China for
its tremendous efforts to curb the spread of the contagion, he said.
China set a record in identifying
the pathogen in a short time following the outbreak of the contagious disease,
Ghebreyesus said, and he praised the country’s timely sharing of the virus’ DNA
information with the WHO and other countries.
I don’t know the source of the so-called news of many foreign friends. As a Chinese, I saw the initial panic, and I also saw the current stability.
Chinese government extended holiday
In response to the GVM’s call, the school has delayed the start of school, and most companies have extended the Spring Festival holiday from original Feb 2nd to Feb 9th and resume on Feb 10th. This is not a sign of lack of confidence in controlling the virus, it is one of the measures to put people’s lives first.
Everyone knows that this is the most effective way to
control the spread of the virus.
I went to supermarkets, fruit shops, etc., and there was
no snap-up like it was fabricated by some media. Prices have not skyrocketed.
The price department is also strictly controlling the prices of daily
necessities to protect people’s daily lives.
Relevant departments have made the unified deployment of
some protective supplies such as masks to ensure timely and adequate supply.
Which country can make such an appropriate response in the first place?
It’s really boring to stay at home every day, but who
wants to joke with life? As someone who is very busy working every day, having
more time to spend with his family may also be a good thing. After all, too
many people complain that the Spring Festival holiday in just a few days is not
long enough.
The internet is well developed. Although I can’t meet my
relatives, friends, colleagues to celebrate the Spring Festival, isn’t it
convenient for video chat, using WetChat of Facetime for people around the word?
Why not give up the temporary joy in exchange for the safety of life?
We are very grateful to the medical staff, community
service staff, and social service staff who gave up their holidays and took
great risks in helping patients, maintaining social stability and creating a
more secure environment.
I am grateful for living in such a country. I believe that
every Chinese thinks so.
In such a severe situation, in order to eliminate the
virus as quickly as possible and ensure the safety of people’s lives, any
measures are reasonable.
Every Chinese should understand and understand.
People of all countries in the world who have experienced
various natural and man-made disasters should marvel at China’s timely and
effective measures.
As an international trade practitioner, I have sincerely
explained to each of my customers our current status. We don’t need to
whitewash or conceal anything, because we have done our best to do a good job.
I believe that the Chinese people will be able to
eliminate the disease as soon as possible. Because we eliminated more severe
SARS than this time in 2003, didn’t we?
Here everyone in Best Technology in China was in good health condition, and our office & facility will be opened on Feb 10th. During that period, our sales reps. will try to reply the email ASAP and thanks for the caring from all of our customers around the word! Much appreciated!
The primary advantage of ceramic multilayer PCBs lies in their thermal properties. The most significant of these is thermal conductivity, which outperforms traditional materials by a tremendous margin. In the table below, the most used board material, FR4, is compared with the ceramic multilayer board in a number of important categories.
ceramic pcb
MULTILAYER PCB MATERIAL COMPARISON
Ceramic
Versus
FR4
28 – 280
Thermal Conductivity (Wm-K)
0.8 – 1.1
Component Comparable
Coefficient of Thermal Expansion (CTE)
Component Comparable
High
Frequency Performance
Low – Mid
Fragile
Handling
Easy
Low
Availability
High
Mid – High
Cost
Low – Mid
As shown above, ceramic multilayer PCBs have advantages and disadvantages as compared to FR4. However, the advantages point to a continued increase in the use of ceramic boards for high-speed and high-power applications that are criteria for more functionality in smaller packages.
ceramic pcb
Best Technology, the industry leader in fast, precision and high-quality PCB manufacturing, has a wide range of material options including to meet your design objectives. This includes accommodating the special process of using ceramic materials for your board if desired. We also strive to provide you with the best manufacturing experience.
HDI PCB (High Density Interconnector PCB), is a printed circuit board having a relatively high line distribution density using the micro-blind and buried hole technology.
It is a process that includes an inner layer line and an outer layer line, then uses a hole and a metallization in the hole to realize a joint function between the inner layers of each layer.
HDI PCB-1
With the development of high-density, high-precision electronic products, the requirements of high-density and high precision are imposed on printed circuit boards. The most effective way to increase the density of pcb is to reduce the number of through holes, and to accurately set the blind holes and buried holes to achieve this requirement, thereby an HDI PCB came into being.
HDI PCBs are finding their way into a growing number of products:
Military communications devices and other strategic equipment
Aerospace – smaller space requirements and light weight are ideal for such applications
Computers and smartphones – phones and computers are taking full advantage of smaller profiles, reduced weight, and increased functionality, made possible through the integration of HDI circuits.
HDI PCB-2
Medical equipment – diagnostic and monitoring equipment has become more reliable and expanded with technical features that aid medical teams with patient treatment, and all of this is powered by HDI PCBs and advanced software.
HDI PCB utilizes buried or blind vias, or a combination, and may also incorporate microvias with an incredibly small diameter. This facilitates the incorporation of more technology in less space, with fewer layers. Multi-layer HDI PCB are also in common use, with many layers being accommodated through various construction methods utilizing blind, buried, stacked, and staggered vias.
With smaller components and blind via in pad technology, components may be placed closer together, resulting in faster signal transmission rates while also reducing crossing delays and signal loss. These are key considerations that generate improved performance of HDI PCBs.
HDI PCBs are preferred for applications where space, performance, reliability, and weight are concerns. This makes them more suitable for nearly every application related to electronics, consumer products, computers, and aeronautics.
Multi-layer HDI PCB can provide strong interconnection of stacked vias, resulting in high levels of reliability, even in more extreme environments.
Considering this, do you ever think about choosing HDI PCB on your next project?
FR4 is the most common material grade that comprises fabricated PCB. FR indicates the material is flame retardant and the 4Â indicates woven glass reinforced epoxy resin. Single or double-sided PCB structures consist of an FR4 core and top and bottom copper layers. Multi-layer boards have additional prepreg layers between the center core and top and bottom copper layers. Now, the core consists of a substrate with copper covering, also referred to as a copper clad laminate. The core, laminate, and prepreg may all be FR4 with the copper sheets between the signal and ground layers.
FR4 PCB
The properties of FR4 may vary slightly depending on the manufacturer; however, it generally has favorable strength and water resistance attributes that support its widespread usage as an insulator for many electrical applications. It serves the same purpose in PCBs, namely to isolate adjacent copper planes and provide overall bending and flexural strength for the structure. FR4 is a good general purpose material for PCB fabrication; however, alternative materials are available.
Alternative PCB Materials
Prior to the explosion of multilayer FR4 PCBs, there were many alternative board materials to FR4. These included FR2, CEM 1, and CEM 3, which were paper-based. However, the strength of FR4, especially for multilayer boards, was a major factor in separating it from alternatives to become the industry standard. Today, there are other materials that are used for single-sided, double-sided, non-plated through-hole (NPTH), and multilayer PCBs, in addition to FR4. These are compared in the table below:
FR4 Material VS Other Materials
The results above clearly indicate that FR4 is a good general purpose material as its parameters are mostly comparable to the other alternatives. It excels in structural integrity with a 2.0 N/mm copper adhesiveness and matches the alternatives in bending strength.
FR4 PCB
FR4 is the most widely-used material in PCB construction. Boards made from FR4 are strong, water resistant, and provide good insulation between copper layers that minimizes interference and supports good signal integrity. At Best Technology, the industry leader in fast, high-quality PCB prototype and PCB manufacturing, we are capable to meet your board material needs for any case. We will work with you to help you select the materials that will best implement your design intent.
Should you have any queries about FR4 material, contact us anytime, and our sales representative will give you a response at our soonest convenience.
As a matter of fact, PCB experts will always know the major benefits of automated assembly processes: reduced errors, increased output and consistent quality, however, is automation always better?
The usage of SMT line machines has become standard practice in PCB assembly and is thought to be more efficient; however, SMT machines are not appropriate for every job. Manual assembly is a better option for assembling boards in low quantities or low-volume orders using components with unique properties.
SMT MachineManual Assembly
Volume Limits
Volume can be a determining factor of whether or not to assemble by hand. Orders of 10 or less boards, are often best assembled by hand- for reducing production time and faster turnaround.
Characteristics of Component Choices
The characteristics of chosen components should be taken into consideration before assembly. Careful and potentially time-consuming SMT calibration is required to minimize the risk of damage when using components with:
Heat sensitivity
Unusual shape and center of gravity
Inadequate packaging and/or documentation from the manufacturer
Therefore, low-volume orders using components with unique properties and insufficient packaging or documentation should be manually assembled by a skilled technician.
In general, it is best practice to manually assemble boards with a volume limit of 10 or less, simple technology, and when there are a few individual components per board.
SMT lines are preferred for large-volume assembly because they consistently produce quality PCBs and reduce the possibility of error associated with manual assembly. The key to ensuring quality of manual assembled boards is having a well-defined manual process, which is bound to passing through failsafe quality checks that hold hand and automated orders to the same standards.
Anyway, before starting your project, it is highly recommended that you should consult with your PCB service provider regarding your PCB assembly options.
Best Technology, a China- based assembly manufacturer will be exhibiting at PCB West 2020 in Santa Clara, CA at booth No. 514 on September 9, 2020(Western Time). Actually, we have participated in this exhibition for continuous 2 years. Here are some pictures for your reference. At Best Technology’s exhibition booth, attendees will be able to learn more about our company for PCB manufacturing and assembly technology.
at the exhibition boothCeline is talking with customersMarina is talking with customersCoco is talking with customersat the exhibition booth
For interested professionals, Best Technology had on hand experts to offer detailed insights and experience on PCB assembly, covering prototype and low/high-volume production. For more information on PCB assembly and fabrication, please visit Best Technology’s exhibition booth No.514 at PCB West 2020.
You are warmly welcome to talk more to see how we manage the components wastage and efficiency to help save your time, money and energy.
About PCB West
SANTA CLARA, CA, PCB WEST 2020 PCB West is an annual event sponsored by major electronics manufacturing vendors and attended by electronics engineers, technicians, managers and more. PCB West is a marketing, product launching and career enhancement event that offers a 1-day exhibit and a 3-day conference. You will get more closely connection with new Technology in PCB field from PCB West.
Welcome to visit us at Booth 514 on September 9, 2020(Western Time).
OEMs, especially those requiring only a few boards to be assembled, may want to outsource their Printed circuit boards to a professional PCB prototype assembler, rather than assemble the boards in-house. Instead of investing in expensive production equipment, they would prefer to obtain their product from a PCB prototype manufacturer, and have an expert assemble it, so that they have reliable PCBs. Fortunately, an eminent enterprise, Best Technology, provides expert solutions for both manufacturing and assembling PCBs.
Turnkey PCBA services
OEMs are experts in the products they manufacture, but may not be so knowledgeable about the PCBs and assemblies that make up their product. Therefore, some guidelines are necessary to enable them select the professional PCB prototype assembler most suited to their requirements. Technical Expertise It is very important to ensure the assembler has the necessary processes in place. For instance, if the OEM requires BGAs on their PCB, they must ensure the assembler is capable of BGA assembly and rework, and they have X-ray machines for verifying their assembly. As most PCBs use surface mount devices, the assembler should be familiar with them to the extent of using automated machinery for SMT assembly. Working Closely If the OEM is outsourcing for prototype manufacturing and assembly, it is important that the assembler be willing to work with them for fixing errors in the layout, mistakes in the BOM, and parts that do not match the footprints on the board. The OEM should be able to make the most of the existing board while resolving the problems with the assembler. Objective of the Outsourcing To be effective, OEMs must also set their objectives that they expect from the outsourcing partner. This is important, as the objectives may vary. For instance, some may be planning to outsource a single product, others may be shifting their growing volumes to a partner with a higher production capacity, while still others may be looking for reducing costs. Request for Quotation
FR4 PCB Manufacturing
When the OEM sends an RFQ or request for quotation to a PCB prototype assembler, it is important they provide all the commercial and technical information the assembler would need. This holds true even when the OEM is looking for a potential PCB prototype manufacturer. Management Aspects To ensure smooth working with the prototype assembler, it will be advantageous to the OEM if they periodically audit their partner, making sure the team has as wide range skills as possible. If necessary, the OEM can transfer some of their skills and knowledge to their partner. A good management practice is to establish regular meetings to make sure activities move on schedule, and the relationship can be discussed at higher levels, while the OEM outlines their strategic plans for the future. Conclusion Best Technology, both a professional PCB prototype manufacturer and a PCB prototype assembler, can handle not only prototype jobs, but also take up regular production works and turnkey projects. It meets all the above criteria, has the necessary quality management systems in place, and has the necessary technology and expertise to handle the most complicated board assemblies.
Every electronic appliance in your home contains a printed circuit board (PCB). But do you ever wonder what happens to PCB’ s after they have been used? Tons of PCB’ s are thrown away every year, but thanks to some very creative people, used PCB’ s are being turned into artistic and functional products. We have selected some of our favorites below.
PCB Cufflinks
The PCB cufflink set is the perfect gift for the fashion conscious gent. Each cufflink uses a 16mm square of PCB. What makes these PCB cufflinks even more special is that no two sets will ever be the same.
PCB Cufflinks
PCB Art
Mr.Steven Rodrig, working for an OEM company, is exposed to PCB’ s often at his workplace and his prior knowledge of ‘Structural Mechanics’ led him to the interesting practice of modelling small sculptures from spare or used PCB’ s.
Steven’s PCB sculpting abilities stretch far beyond single objects or creatures, he can make full scenes from unused PCB’ s. Take a moment to appreciate the sheer intricacy of these sculptures. Countless hours of planning and practice must have gone into getting these to look so neat and tidy.
PCB Art
PCB Business Card
A savvy electrical engineer from The University of Waterloo thought up another fantastic purpose for PCB manufacture – his business cards, with an integrated USB connection!
Could this be a sign of the future? Imagine the data that could be passed over. Not just simple contact details and addresses, but full-on portfolios, video presentations, games, and any other form of digital media. This is a fantastic concept and a great use of PCB’ s.
PCB Business Card
PCB’ s have more uses than you might think. Just remember, Best Technology, always being here, dedicates to being your best supplier of printed circuit boards(PCB) with consistent good quality in Asia.
Metal core printed circuit boards(mcpcb) are suitable alternatives for FR4/CEM1-3 variants. These circuit boards use metal as a core base material and are differentiated on the basis of their construction. There are a few types such as single layer, double layer, double sided, and multi-layer PCBs. What are heavily used in advanced electronic circuits are the double layer and double sided metal core printed circuit boards. These two types arise confusion due to their similar names. What are the differences between both? What advantages do they offer? Now you can get the answer from the following description.
Definition of a Double Sided and Double Layer MCPCB:
In a double sided MCPCB, the metal core lies in the middle of two conductor layers. There is also a dielectric layer between the metal core and a copper layer. The metal core and conductors are connected to each other through Vias. The SMD can be populated at the bottom and top.
A double layer MCPCB has a metal core at the bottom, with two conductor layers on its top. In short, the conductor layers lie in same side of the metal core. Generally, metals like aluminum, copper, and iron alloys are used as metal cores. The dielectric layer lies between a copper layer, and the bottom metal core. The SMD can only be populated on the top.
Both these variants offer the same benefits as other metal core PCBs. They are as follows:
Reliable Performance at High Temperatures: Many double sided CEM3 or FR4 PCBs with high power and density face difficulties in heat dissipation. The CEM3 or FR4 material have weak thermal conductivity, which means the electronic components are destroyed at high temperatures. However, double sided metal core circuit boards feature a metal core, which has an excellent inter-layer insulation and thermal conductivity. Both these factors contribute to its reliable performance at high temperature.
Excellent Thermal Expansibility: Thermal expansion and contraction is an important feature of all objects. The ability to contract with cold, and expand with heat is termed as coefficient of thermal expansion. Most FR4 PCBs have low CTE, which means they cannot effectively deal with issues of contraction and expansion. However, both double sided and double layer PCBs can effectively deal with thermal expansibility. Thus, they are in demand.
The choice of the either type will depend on your application requirements. If you are still confused about the two types and their benefits for your application, you can always approach an industry expert or a reliable metal core pcbs manufacturer like Best Technology, which provides different types of MCPCBs in diverse specifications.
