Exemple de utilizare a Board surface în Engleză și traducerile lor în Română
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Programming
Used weekly, it will help maintain your board surface in prime condition.
And the board surface is small, increasing the workload of tailor welding.
The first thing to deal with is the silk screen logo on the PCB board surface.
The solder mask of the PCB board surface will reduce the Z0 value of the signal line by 1 to 3 Ω.
The former will have to be trimmed so thatit sits no more than 13mm above the board surface.
However, sometimes due to poor design on the board surface, there will be a large area of the substrate surface without a copper layer, with a few through holes or lines distributed.
Because of complex processors, USB devices andantennas are printed directly on the circuit board surface.
To be able to continue with level Q2- aligning the joint area with continuous transition to the board surface with ready-mix FUGA& FINISH, the absolutely necessary requirement is the first layer, level Q1 to be completely dried(this could take up to 24 hours).
It is a series of complete software files developed by American company Gerber for circuit board surface pattern and holes.
The board surface can be printed with any colors which you like, what's more on the outlayer it can be laminated and inflaming retarding, PVC crust foamed board with the feature of Anti-moisture, anti-acid, anti-corrosion and alkali-resistant.
Tracking resistance determines how the material resists high voltage electrical discharges creeping over the board surface.
Refers to a conductor on the circuit board surface, from its edge to the edge of another nearest conductor, the span of the insulating substrate surface covered by it, which is called the conductor spacing, or commonly known as the spacing.
Place enough of the compound on the trowel to completely fill the joint andpress well to ensure thin continuous transitional layer aligning the join area to the board surface.
In the PCB manufacturing and inspection process, in order tocorrectly position the negatives on the board surface, a certain point, line, or hole surface is specifically selected as the reference reference for the figure, which is called Datum Point, Datum Line Also known as Datum Level(Plane), also known as Datum Hole.
When the drill bit is drilled, the drill tip touches the copper foil of the substrate board generates micro-current to sense the height of the board surface, and then drill down according to the set drilling depth.
In order to facilitate downstream assembly on the board surface and facilitate the operation of its visual aid system, a large-scale IC is added to the open space on the outer edge of each pad on the board assembly position, and a triangular"optical target" is added to the upper right and lower left to assist An example is the placement of a machine for optical positioning.
Some large-area conductor areas on the circuit board surface, in order to obtain better adhesion between the board surface and the green paint, often the copper surface of the sensing part is turned away, leaving a number of cross lines that cross vertically Like the structure of a tennis racket, this will eliminate a large area of copper foil, and the floating crisis due to thermal expansion.
English Principle andintroduction of PCB board OSP surface treatment process.
Principle and introduction of PCB board OSP surface treatment process[Dec 04, 2019].
Excellent cutting 3D illuminated letters for advertising andchannel letters on metal surface board. 6.
This machine is applicable for board profile surface treatment, wrapping foil on window sills, door panels, foam board. .
Excellent performance on cutting 3D illuminated letters for advertising andchannel letters on metal surface board 4.
This model we pressed a wide squares embossed on the surface board, so it has a wonderful decoration too, to let you feel relaxed and comfortable.
Principle and introduction of PCB board OSP surface treatment process Summary of content: Principle: An organic film is formed on the copper surface of the circuit board, which firmly protects the fresh copper surface, and can also prevent oxidation and pollution at high temperatures.