ผู้ผลิตต้นแบบ Pcb จะหลีกเลี่ยงข้อผิดพลาดในการพัฒนา pcb ได้อย่างไร?2020-04-25
Fundamental rules in Pcb prototype manufacturing
Over the past decade, the demand for Pcb prototype manufacturer has remained healthy. Especially for highly accidental medical devices. USB obtains reliability and repeatability in PCB layout and PCB manufacturing process is transparency, integrity and authenticity. This is the main challenge of providing electronic solutions, especially in the medical industry.
What is Pcb prototype?
The prototype of a printed circuit board is its technological model, created as a result of design and construction. But not yet put into mass production.
How functional and effective the newly designed pcb prototype is?
Further testing and examination of the prototype allows developers to:
- identify and eliminate inaccuracies,
- design errors,
- defects in the created printed circuit board.
After Pcb prototype manufacturer tests pcb, the customer can check how functional and effective the newly designed printed circuit board is. Moreover, how it meets certain technological requirements?
The direct manufacturer of the future series of printed circuit boards can correlate the actual production capabilities with it.
วิธีการPcb prototype manufacturer avoid errors?
In the process of designing a printed circuit board, it is almost impossible to avoid errors and inaccuracies. That is why the launch of mass production without testing the prototype is likely to lead to the release of a large number of defective units.
As a result, the project as a whole will receive a substantial, but meaningless appreciation. Furthermore, its implementation will stretch over time.
Designing is one of the most crucial part for a Pcb prototype manufacturer. Simultaneously, it is the basic step to develop a flawless pcb prototype. In the development of the final manufactured PCB, there are often multiple prototype runs, which is for good reason.
What are Pcb Prototypes for boards with limited functions? pcb prototype manufacturer
Prototypes for boards with limited functions can be developed to test proof-of-concepts for individual functions before producing more complex finished products.
As functionality is added to the design, increasingly complex constructions can ensure:
- quality and
- expected results.
- This is especially useful in more complex PCB designs
Where failures after final manufacturing can lead to costly rework and redesign.
High-density or multilayer circuit board manufacturing is a scenario where prototype design can accelerate the process of PCB circuit concepts-to production. Generally, building cost-effective prototype boards by pcb prototype manufacturer is a professional service provided by some PCB manufacturers.
How pcb prototype board is better by its function?
As a design, the cycle prototype board is fine-tuned and verified by function and reliability. Moreover, it can accelerate the development of the final design of the work. Similarly, if demand or circuit board failures are discovered later in the process. The rework cost will increase significantly.
This makes prototyping software a valuable tool for Pcb prototype manufacturer and circuit designers.
Across multiple types-from porous phenolic model boards to glass and plated through holes-PCB prototype circuit boards are characterized by providing a non-conductive environment for following:
- The electronic components
- electronic vias
- electronic tracks, etc.
These single-sided or double-sided PCBs make circuit manufacturing cheap and fast, eliminating many complicated wiring methods.
What is the best material used for making pcb prototype?
The most commonly used material for making PCB prototype by pcb prototype manufacturer is the flame retardant epoxy glass cloth laminate. It is an eight-layer glass fiber material.
Furthermore, it is a multi-functional high-pressure thermosetting plastic laminate grade material with high Compressive strength.
This material has:
- very low water absorption and
- can be used in dry and wet conditions.
Based on the excellent electrical insulation properties of the material under various conditions, it can be applied in a wide range. And is the main material for manufacturing rigid PCBs. In view of FR-4’s:
- good compressive strength
- suitable cost and flame retardant characteristics
it is also commonly used in the production of the following:
- bus bars, etc.
How pcb prototype manufacturers are developing most reliable pcbs?
The current circuit board type is much more complicated than it was a few years ago. It has become ultra-small in size, more flexible, and even added wireless functions
The days when lead solders, giant boards, and large-size originals dominated the market have become a thing of the past.
Although many circuit boards still use basic perforation. Subsequently, many pcb prototype manufacturers have begun to prototype solder-free universal circuit boards. And then convert the originals into more permanent PCBs.
Similarly, there are many circuit boards, such as the Perma Proto board produced by pcb board manufacturer. Moreover, it still uses the basic half-circuit board layout. But the top is printed with white screen and matched with a poorly designed five-hole base suitable for traditional circuit boards.
There are four power buses on each side, no coverage, easy to cut and track. The holes are all electroplated and will not peel off when reworked. Finally, the surface is gold-plated and two mounting holes make it easy to install the PCB in the universal box.
How designing is important in pcb prototype manufacturing ?
Pcb prototype manufacturer use prototype PCBs early in the design process to test the functionality of PCB-based solutions. Before entering a more complex design, they often order multiple prototype runs to test the redesign or test a single function.
Generally, this allows them to discover elements that need to be corrected early in the process. The sooner these problems are discovered, the lower their cost will be. Therefore, in this way we know the importance of preheating the prototype board in the process of making it.
what is the role of preheating the prototype board?
Here are some important roles of preheating the prototype board:
- Evaporate the solvent in the flux and the moisture that may be absorbed on the PCB assembly board.
- Subsequently, the solvent and the moisture will boil over the crest and cause the solder to spatter (commonly known as the “expanded tin” phenomenon).
- The fried tin is like in a boiling oil pan Mixed into water one
In this way, pcb prototype manufacturer work and hence the fried tin will generate the
- forming hollow solder joints
- sand holes
- tin beads
- missing solder
- virtual solder
- air holes andsome other defects.
Therefore, preheating before SMT patch processing can reduce welding defects.
- Similarly, the rosin and active agent in the flux need a certain temperature to decompose and activate the reaction. The activation reaction can remove the oxide film on the surface of the printed circuit board pad, component ends and pins, and other contaminants.
- pcb prototype manufacturer Fully preheat the prototype pcb board.And components to avoid the rapid temperature rise. Caused by SMT patch welding and thermal stress damage to the printed board and components.
The preheating temperature and time of the printed board should be determined according to the type of
- activation temperature range
- the size and thickness of the assembled board
- size and number of components
- the number of mounted componentsthat is, the heat capacity of the assembled board.
The length of the preheating zone of the wave soldering machine is determined by the output and the speed of the conveyor belt. The higher the output, the longer the preheating zone is required for the assembled board to reach the required wetting temperature.
The preheating temperature is 90 ~ 130 ℃ (referring to the surface temperature of the PCB). Furthermore, temperature of the multi-layer board and more components are taken by pcb prototype manufacturer to take the upper limit.
Similarly, temperature of different PCB types and assembly forms is also different. But it must be combined the specific situation of pcba patch is set after the process test or test welding. As with reflow soldering, real-time temperature curves must also be measured.
pcb prototype manufacturer used pcb prototype in different ways like:
- high-tech medical devices
These are mainly used for:
- dosimeter product assembly
- inventory and hospital supply control devices
- remote transmitters and receivers for eye examination,
- body motion tracking gadgets
- blood glucose Blood pressure monitoring
- digital cell counting device
- ultrasound device
- laser treatment
- pacemaker measurement, etc.
People’s awareness of the upcoming high-health trend and the rapid transmission of new innovations have become the light to elevate pcb prototype manufacturer’s factories to a new level.