Electronics assembly manufacturing

/Tag: Electronics assembly manufacturing

The Basic Knowledge of PCB in PCB Assembly

In today's society,PCB is used widely in our all-sides life.As a necessary part, it plays an important role. Therefore, we have to have a good knowledge of PCB. Today I summarized PCB knowledge for you.  Definitions: For standard PCB, it is the combination of bare board and components on it. While for bare board PCB, it is called printed wiring board. We usually call it PWB. (1) Traces: The base material of PCB is comprised of dielectric, heat insulation, uneasy to bend materials. On its surface, we can see thin traces, its material is copper. Originally the copper covered the [...]

Hitechpcb provides PCBA assembly manufacturing services

Hitechpcb provides PCBA assembly manufacturing services, low 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. Inspection Methods AOI Testing •Checks for solder paste •Checks for components down to 0201" •Checks for missing components, offset, incorrect parts, polarity X-Ray Inspection X-Ray provides high-resolution inspection of: •BGAs •Micro BGAs •Chip scale packages •Bare boardsIn-Circuit Testing In-Circuit Testing is commonly used in conjunction with AOI minimizing functional defects caused [...]

SMT assembly Processing / Patch Processing Basic Process Elements

The basic process elements of smt assembly processing / patch processing: Silk Screen (or Dispensing) --> Mounting --> (Curing) --> Reflow Soldering --> Cleaning --> Testing --> Rework Silk screen: Its function is to print solder paste or patch glue on the pad of PCB to prepare for soldering of components. The equipment used is a screen printing machine (screen printer), located at the forefront of the SMT production line. Dispensing: It is a glue that drops the glue to a fixed position on the PCB. Its main function is to fix the components to the PCB. The equipment used [...]

Who Can Benefit From Turnkey PCB Assembly Services?

Advantages of Full Turnkey PCB Assembly Services and Who Can Benefit From Turnkey PCB Assembly Services? • Shorter Lead Time As a fundamental form of electronic assembly, PCB assembly primarily contains three phases: PCB fabrication, components procurement and PCB assembly. Traditionally, you should quote and confirm design files with sales and engineers working for your PCB manufacturer, then components distributors and finally PCB assemblers. Such series of quotations and confirmations just need your time spent in contacting with different partners. If those partners are from different countries, you have to overcome some problems such as time zone, communication habits etc. Full-turnkey [...]

Electronics assembly manufacturing–Why Use Reflow Soldering?

Electronics assembly manufacturing Reflow soldering allows for the simultaneous processing of multiple connections. This prevents the disconnection of wires while you are soldering their neighboring wires. Reflow Soldering also improves the quality of resulting PCB Electronics assembly and offers many other benefits such as, Improved wettability of solder joints and surface mounted components. Improved solderability of a large variety of electronic components. Enhanced joint integrity for crucial electronic applications. Reduced board discoloration. Elimination of charred flux residues on heating elements and boards. Reduced formation of white haze from the oxidation of rosin or tin flux Optimized performance of low-residue and [...]

How to Identify Circuit Board Electronics Components?

How to Identify Circuit Board Electronics Components? Start by identifying the printed circuit board, or PCB. This is the underlying rectangular chip or board, often in green or blue. This chip is covered in conductive pathways--little lines of metal that are actually printed on the board by another machine during production. Notice that each of these lines starts with a dot and is most likely labeled with a number. Though they are not wires, each of these connective lines works in the same manner as a wire to transmit independent lines of electricity. Identify other "nuts and bolts" electronic circuit [...]

PCB Manufacturing Process: how are PCBs made

PCB Manufacturing Process: how are PCBs made PCB holes and vias Holes, often called via holes or vias are needed within a PCB to connect the different layers together at different points. Holes may also be needed to enable leaded components to be mounted on the PCB. Additionally some fixing holes may be needed. Normally the inner surfaces of the holes have copper layer so that they electrically connect the layers of the board. These "plated through holes" are produced using a plating process. In this way the layers of the board can be connected. Drilling is then accomplished using [...]

How should we inspect incoming materials in PCB assembly?

1.PCB size and appearance inspection PCB size inspection mainly includes the diameter of the processing hole, the spacing and its tolerance, and the small edge of the PCB; While PCB appearance inspection is about the solder mask and the pad alignment, for instance, whether the solder mask has impurities, peeling and wrinkling, the benchmark mark is qualified, the circuit conductor width (line width) and spacing meet the requirements or not.   2.PCB warpage and distortion detection The basic test principle: the PCB under test is exposed to the thermal environment and carry out the thermal stress test. In addition, a typical thermal stress test [...]