PCBA assembly services

/Tag: PCBA assembly services

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 [...]

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 [...]

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 [...]

PCB Assembly Rework & Repair Guidelines

PCBA Boards can be reworked and repaired. However, only reasonable operations based on scientific guidelines can guarantee the quality of PCBA boards; PCBA rework and repair basis Rework and repair of PCBA must be performed in accordance with PCB design documents and repair regulations, and there also must be a unified rework and repair process. The rework times allowed for each solder joint Rework is allowed for defective solder joints, and rework for each solder joint shall not exceed three times, otherwise it will cause damage to the solder joints. Use of removed components In principle, the disassembled components should not be used anymore. If they need to be used, [...]

How much do you know PCB Assembly First Article inspection?

First Articles Inspections (FAI) are generally less common than other inspection types, like visual inspection, AOI, X-ray and SPI in the mind of people who are involved in Printed Circuit Board (PCB) Assembly Manufacturing industry. And many of PCB assembly or SMT assembly suppliers who are unaware of the customer’ requirements might resist outside inspection.   It’s even more important to outline your PCB assembly requirement for a first article inspection in your fabrication drawing documentation, and check with the circuit board assembly manufacturer whether it has capability to conduct the FAI work and meet your requirement. If the requirement [...]