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So far Andy Liu has created 223 blog entries.

LED aluminum PCB design

LED Aluminum PCB is composed of the circuit layer (copper foil layer), thermal insulation layer and the metal core layer. Circuit layer require great current-carrying capacity, thus should use thicker copper foil and generally the thickness is from 35um to 280um; Thermal insulation layer is the core technology of aluminum PCB, it is usually made up of special ceramics and fill special polymers, with small thermal resistance, good viscoelasticity, and has thermal aging ability, and can be able to withstand mechanical and thermal stress. Thermal insulation layer of IMS-H01、IMS-H02 and LED-0601 and other high-performance aluminum PCB are using this technology, [...]

LED aluminum PCB design

LED Aluminum PCB is composed of the circuit layer (copper foil layer), thermal insulation layer and the metal core layer. Circuit layer require great current-carrying capacity, thus should use thicker copper foil and generally the thickness is from 35um to 280um; Thermal insulation layer is the core technology of aluminum PCB, it is usually made up of special ceramics and fill special polymers, with small thermal resistance, good viscoelasticity, and has thermal aging ability, and can be able to withstand mechanical and thermal stress. Thermal insulation layer of IMS-H01、IMS-H02 and LED-0601 and other high-performance aluminum PCB are using this technology, [...]

How to prevent warp on printed circuit boards?

The bow and twist issue on Printed Circuit Board can cause components and parts registration in PCB assembly process, when handling with SMT or THT, if the component pins are positioning not trim, which will bring a lot of difficulties on assembly and installation. IPC-6012 standard define the maximum bow and twist 0.75% on circuit boards of SMB—SMT, other PCB bow and twist is generally not exceed 1.5%; Electronic assembly plants allow bow and twist (double/multilayer PCB) is usually 0.70---0.75%. As a matter of fact, many rigid PCB boards (board thickness 1.6 mm) require bow and twist is less than [...]

Tips of high frequency PCB (RF PCB) design

In order to achieve more reasonable design and better anti-interference ability for high frequency PCB(Microwave RF PCB), design engineer should consider the tips as following: Use inner layer as power ground layer, which will have the effect of shielding and even decreasing spurious inductance, shorten length of signal wire, reducing Cross interference between signals. Circuit layout must be turn with 45 degree angle, which will help to reduce high frequency signal emission and coupling between each other. The shorter the better for length of circuit layout. The less the better for through holes. Layout between layers should be in vertical [...]

A Look Inside The PCB Design Process

Printed Circuit Board (PCB) Design, also referred to as PCB Layout, is the first step toward a successful PCB assembly. At this stage in the PCBA Manufacturing process, an engineer has decided the circuitry of the printed circuit board, and the layout can be designed.     Using PCB design software, the designer will design the component placement and routing of electrical connectivity on the printed circuit board. From RF/Microwave to High-Speed Designs, the Hitech Circuits design team can tackle any type of technology you require. Hitech Circuits designs with manufacturing in mind, meaning a smooth transition to production. Once [...]

Successful Flex Circuit Design Guidelines

With the use of sensors and technology in everything from mobile phones to refrigerators to automobiles to wearable medical devices, circuit boards are a component in many different types of products. In today’s world of electronics, any product with an on/off switch contains a circuit board. Due to their versatility, the use of flex circuits is one of the fastest growing product market segments.   With the introduction of flex and rigid-flex circuits, engineers have been given the opportunity to be more creative in designing new and innovative products. Flex and rigid-flex boards are built to fit into tight, three-dimensional [...]

High Speed PCB Design

Hitechcircuits’ experts work closely with customers to provide consulting and guidance for EMC and SI design throughout the PCB design process in the following areas:   System-Level Architecture and floor-planning, main boards, daughterboards, backplanes, connectors, cables, grounding. Enclosure design and shielding, installation practice.   Schematic Review High-speed signals, differential signaling, I/O interfaces (digital/analog, telecom and local-area network), magnetics, filters, connectors, power supply filtering and board decoupling/bypassing.   PCB Design Stackup selection and layer assignment, partitioning, routing high-speed and other critical nets, termination, noise-coupling mechanisms and prevention, common-mode suppression, I/O and filtering, high-voltage clearances, power-supply, decoupling and bypassing, power and ground [...]

FR4PCB vs. Aluminum PCB vs. Copper base PCB vs. Ceramic PCB for led headlight

For the PCB boards now in application to LED headlight, there are mainly four kind of materials, FR4 PCB, Aluminum PCB, Copper PCB and Ceramic PCB. It is a good deal to understand the distinctions for these four types PCB. Which PCB you choose depends on the circuit design construction of the headlight. FR4 PCB vs. Aluminum PCB Price Comparison In the cost comparison, the Aluminum PCB is more expensive than FR4, as well as more superior in performance. Thermally conductivity Aluminum PCB has a great capability of thermal conductivity than FR4 which makes them play an important role in [...]

PCB Laminate Suppliers

Our normal PCB laminate suppliers have ShengYi, Rogers, KB, Isola, ITEQ, Bergquist, Arlon Ventec, etc. Different laminate materials used to fabricate printed circuit boards for advanced electronic applications. Among these are materials with a range of dielectric constants, low dissipation factor, and controlled mechanical properties. Some materials are priced for low-cost commercial applications. For more information on Laminates or you need download the material datasheet, please visit the following official websites. SHENG YI – www.syst.com.cn ROGERS – www.rogerscorp.com ISOLA – www.isola-group.com ITEQ – www.iteq.com.tw TACONIC – www.taconic-add.com NAN YA – www.npc.com.tw DUPONT – www.dupont.com NELCO – www.parkelectro.com VENTEC--www.ventec-group.com.cn KB GROUP--www.kingboard.com BERGQUIST-www.bergquistinc.com

2021-01-21T16:40:01+00:00Categories: Material Datasheet|Tags: , |

PCBA assembly manufacturing services–Hitech Circuits Co., Limited

Hitech Group provides PCBA assembly, from PCBA sample  to medium MASS production volume. Our professional SMT factory has advanced equipments, such as the world-class stencil printing, SMT chip pick & place, solder reflow, and in-line testing and steel mesh manufacturing. AOI test machine and X-ray testing machines for quality check. Here below is our main services for PCB assembly: Please provice BOM, so we can check and quote parts and assembly prices. Thanks. Surface Mount Technology Pin Through-hole Assembly RoHS  Selective Wave Soldering Conformal Coating Complete box build Inspection Methods Surface Mount Technology POE all products follow IPC2 standards.With 18 [...]