I am not learning electricity, the problem is not professional please understandFor example, in the past, we are in the physics of the secondary wire or wire that is connected to the resistance in the integrated circuit is how to reflect? I know it is the use of lithography technology, is not equivalent to the formation of a line into a line (corrosion into the groove)? And then connect the resistors and capacitors
First of all, the general circuit of the insulator, just a carrier, it plays the role of support and insulation. As for the integrated circuit, the bottom layer is called the substrate (generally P type semiconductor), is to participate in the work of integrated circuits. CMOS process, so the Nmos substrate are connected together, are the same substrate.Another image, that is, the integrated circuit is a combination of some electronic components and wiring, no insulation and insulation as a support. It is achieved by adding bias and other techniques to isolate.
Integrated circuit (integrated circuit) is a kind of micro electronic device or component. With certain techniques, the transistor, required a circuit of resistance, capacitance and inductance components and interconnect wiring together, produced in a small or a few bits of the semiconductor wafer or substrate, and then encapsulated in a tube shell, a micro structure required for the circuit function; all of them element in the structure has formed a whole, so that the electronic components to miniaturization, low power consumption, high reliability and intelligent a huge step forward. It is represented by the letter "IC" in the circuit. The inventor of the integrated circuit is Jack Kilby (based on Ge) and the (silicon based (Si) integrated circuit). Most of the semiconductor industry today is based on silicon integrated circuit.A new type of semiconductor device developed in the late 1950s of 60s. It is through oxidation, photolithography, epitaxy, diffusion, evaporation of aluminum and semiconductor manufacturing process, the connecting wire between the required circuit has a certain function of the semiconductor, resistors, capacitors and other components and they are integrated in a small piece of silicon wafer, and then welding electronic devices are encapsulated in a casing. The outer shell of the utility model is provided with a round shell type, a flat type or a double line type. IC technology includes chip manufacturing technology and design technology, mainly in the processing equipment, processing technology, packaging testing, mass production and design innovation ability.
And for why it's cheaper to use silicon, it's not because of its semiconductor nature that it uses it. The formation of P and N, a multi hole, a multi electron, and thus the role of different doping. GaAs expensive, but the performance is good, mostly for high-speed circuits and military aspects.
