Before we clarify the semiconductor chip, we should first understand two points. One is what a semiconductor is, and the other is what a chip is.

1. 5 Layers Take You Through The Internal Structure Of A Chip : This Is
What Professionals Do
Before we clarify the semiconductor chip, we should first understand two
points. One is what a semiconductor is, and the other is what a chip is.
Semiconductor
semiconductor, a material with conductivity between insulator and
conductor at room temperature. People usually call materials with poor
conductivity, such as coal, artificial crystals, amber, ceramics, etc., insulators.
And the conductivity of the better metals such as gold, silver, copper, iron, tin,
aluminum, etc. called conductors. Compared with conductors and insulators,
the discovery of semiconductor materials is the most recent, until the 1930s,
when the material purification technology improved, the semiconductor only
received the attention of the industry. Common semiconductor materials
include silicon, germanium, gallium arsenide, etc., while silicon is the most
influential of the various semiconductor materials in terms of commercial
applications.
Chip
A chip, also known as a microchip, integrated circuit, or IC, is a silicon chip
containing an integrated circuit that is small in size. Generally speaking, chip
(IC) refers to all semiconductor components, is a collection of electronic
components on a silicon board to achieve a specific function of the circuit
module. It is the most important part of electronic devices, undertaking the
functions of computing and storage. It is widely used in almost all electronic
devices for military and civil applications.
So far you probably have a brief understanding of semiconductors and
chips, next let's talk about semiconductor chips.
What is a semiconductor chip?
In general, the semiconductor, integrated circuit, and chip these three
things can be equated, because the talk is actually the same thing.
The semiconductor is a material, divided into four categories in the table
because the proportion of integrated circuits is very high, more than 80%, the
industry is used to the semiconductor industry called the integrated circuit
industry.

2. And the chip is the carrier of the integrated circuit, in a broad sense, we
equate the chip with the integrated circuit.
So for the white, just remember, when the chip, integrated circuits, and
semiconductors appear, do not panic, is the same code thing.
Semiconductor chip internal structure
Semiconductor chips are small in size. But the internal structure is very
complex, especially since it's a core micro unit - thousands of transistors. We
will explain the internal structure of semiconductor chip integrated circuits in
detail. In general, we use the structure hierarchy from large to small to know
the integrated circuit, so that it will be better understood.
(1) System level
Let's take the cell phone as an example again. The whole phone is a
complex circuit system that can play games, make phone calls, listen to music,
and beep-. Its internal structure is composed of multiple semiconductor chips
as well as resistors, inductors, and capacitors interconnected, called the
system level. (Of course, as technology has evolved, the technology to make
an entire system on a single chip has been around for years - SoC technology)
(2) Module level
The whole system is divided into many functional modules with their own
functions. Some manage power, some are responsible for communication,
some are responsible for the display, some are responsible for sound, some
are responsible for the overall calculation, and so on. We call this the module
level. Each of these modules is a magnificent field that gathers the
crystallization of countless human wisdom and feeds many companies.
(3) Register Transfer Level (RTL)
So what does each module consist of? Take for example the digital circuit
module (which specializes in performing logic operations and processes
electrical signals that are discrete zeros and ones), which accounts for a large
percentage of the overall system. It is made up of registers and combinational
logic circuits.
A register is a circuit structure capable of temporarily storing a logic value,
and it requires a clock signal to control the length of time that the logic value is
stored.

3. In practical applications, we need clocks to measure the duration of time,
and circuits need clock signals to coordinate the arrangement. A clock signal is
a rectangular wave with a stable period. In reality, one second is our basic time
scale, and a rectangular wave oscillating for one cycle in a circuit is a time
scale for their world. The circuit components act accordingly and fulfill their
obligations according to this time scale.
What is combinational logic? It is a combination of many "AND", "OR", and
"NOT" logic gates. For example, if two light bulbs are connected in series,
each with a switch, the light will be on only when both switches are turned on.
A complex functional module is made up of many registers and
combinational logic. Call this level the register transfer level.
(4) Gate level
The registers in the register transmission stage are actually also
composed of with or without logic, subdividing it into with, or, or without logic,
you reach the gate level (they are like a door, blocking/allowing the entry and
exit of electrical signals, hence the name).
(5) Transistor level
Whether it is a digital or analog circuit, at the bottom of the hierarchy is the
transistor level. All logic gates (with, or, non, and non, and non, different, or,
with or, etc.) are composed of a single transistor. Therefore, the integrated
circuit is full of transistors, and the wires that connect them, from macroscopic
to microscopic, reach the bottom level.
The bipolar transistor (BJT) was used more in the early days and is
commonly known as a triode. It is connected to a resistor, power supply, and
capacitor, and itself has the function of amplifying signals. Like building blocks,
it can be used to form a variety of circuits, such as switches, voltage/current
source circuits, the logic gate circuits mentioned above, filters, comparators,
adders, and even integrators, etc. A circuit built from a BJT is called a TTL
(Transistor-TransistorLogic) circuit, and the circuit symbol for a BJT looks like
this.
But then the emergence of metal-oxide-semiconductor field-effect
transistors (MOSFETs), with excellent electrical characteristics, ultra-low
power consumption sweep the IC field. Except for analog circuits where BJTs
still have a presence, basically all ICs nowadays are made up of MOS tubes.
Likewise, thousands of circuits can be built from it. The circuit symbols of

4. MOSFETs are as follows.
In summary, in the actual industrial production, the manufacture of chips,
in fact, is the manufacturing process of thousands of transistors. Only in reality,
the manufacturing of chips in the reverse order of layers, from the bottom of
the transistor layer up to build.
In other words, according to the order of "transistors -" chip -" circuit
board", we can finally get the core components of electronic products - circuit
board.