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Can a cold solder connection cause fire on the PCB?

2019-03-20

Not really. Cold solder: Little solder around the solder point that is only easy to cause bad contact instead. Possible reason: Poor solder paste or processing technology;

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Why is copper used in PCB instead of aluminum?

2019-03-20

It depends. According to the metal base material, both copper and aluminum are used in PCB but with various application; However, if we discuss this question from PCB Plating perspective, then we’ll get another totally different answer:

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Where are most semiconductors manufactured?

2019-03-19

At present, USA is the most semiconductors manufacturer around the world; While in China, Taiwan should be the No.1 in terms of manufacturing semiconductors.

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What is the direction of the current flow when a switch is closed?

2019-03-19

If I understand what you mean correctly: “What is the direction of the current in the outside of the power supply when a switch is closed?” Normally, in the outside of the power supply, the current flows from the positive electrode to the negative el

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What causes the filament of a light bulb to glow so bright?

2019-03-19

The light bulb makes good use of the heat effect of current, that’s to say, as long as the light filament heats up to an incandescent state, which will glow so bright.

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How is a PCB designed?

2019-03-18

PCB Design Procedures: 1)Product Function Requirements+PCB Design Software+ Schematic 2)PCB Design+BOM 3)PCBA Prototype & Test 4)Optimization Design+Mass Production

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Are CPU pins really gold?

2019-03-18

Not really. Frankly speaking, the main raw material of the CPU pins is copper with gold-plating.

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What do I need to design a PCB for LEDs?

2019-03-18

You need basically the following stuffs if you design a PCB for LEDs: “PCB board+LED +Electric Wires+Switch+Batteries” Sure, you can also add something else in the PCB if you like.

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What is the difference between Proteus and Protel 99 SE in PCB Design?

2019-03-16

The difference between Proteus and Protel 99 SE : Proteus: To emulate schematic and verify the feasibility of circuit; Protel99SE: To design schematic and PCB, a professional PCB design software.

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What is the electronic circuit in the black box of aircraft?

2019-03-16

Two parts electronic circuit in the black box of the aircraft: The first part: Signal transmitting circuit, which is controlled separately and automatic cuts off after 30 days; The second part: Signal storage circuit, which is also controlled sepa

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