"Oh yes!" Zheng Xinwang shouted excitedly, and it took more than half a month to finally carve out the original piece he was responsible for.

"Is it done?" Zhao Gong hurriedly walked over and asked.

Zheng Xinwang nodded excitedly: "I have already asked the instrument to check it three times, and it is exactly the same as the design of the star map." ”

"Great, I'm ready to install the carbon nanoneedles and invert the mold right away." Zhao Gong patted Zheng Xinwang on the shoulder and ordered.

"No problem." Zheng Xinwang and a few others hurriedly went to prepare.

The installation of carbon nano needles is to inject silver atoms into the grooves of the carved circuit as the control circuit of C31, and then import C31, so that the original carbon nano printing head is completed.

And the inverted mold, in fact, is because the original carbon nano printing head carved out by them is exactly the same as the design drawing.

Anyone who has ever used a seal knows that the words or patterns on the seal are the opposite of the words or patterns that are printed.

Therefore, if you do not reverse the mold, then the circuit printed on the original chip will be the opposite of the design drawing, although this can also be used, but for unnecessary trouble, it is still used to reverse the mold.

The speed of the original film according to the carbon nano needle is very fast, and in just over half an hour, Zheng Xinwang and others completed the installation of the carbon nano needle.

Next, the carbon nano printing head is directly used to perform reverse mold printing.

After the original mold is printed, the original printing head of the mold is made on top of the original mold.

In this way, the printing head of the first layer of the circuit is completed, and the printing head can be installed on the circuit printing machine for debugging.

Of course, for the sake of efficiency, a circuit printing machine cannot have only one printing head, after all, a printing head can only print one chip at a time.

Therefore, Zheng Xinwang and others spent three days to complete a circuit printing machine that can be used with 30 centimeter square wafers, which is neatly arranged with dense printing heads.

The mobile phone chip industry often sees 28nm, 14nm, 10nm, 7nm, etc., where xxnm refers to the width of the gate of the complementary oxide metal semiconductor field-effect transistor formed on the CPU, because it is called the gate length, not the chip size that many people think.

In fact, if the size of the chip is 5 nanometers, it is the same as a hair. And those graphics card chips and mobile phone chips that you often see are millimeters in length and width.

Because it has not been reasonably designed, the 5-nanometer chip designed by Xingtu Company has only integrated a total of 13 billion transistors, and the average layer is about 3~500 million transistors.

If the 5nm chip is reasonably designed, at least 30 billion transistors can be integrated, and the most powerful core on the market is Qualcomm Snapdragon 845, which is a 10nm process processor with up to 5.5 billion transistors.

Even with such an unreasonable design, Xingtu's experimental chip can still integrate 13 billion transistors.

In addition, due to Galaxy Semiconductor's silicon wafer cutting technology, it is also different from the traditional one.

Generally speaking, after Sanxin and Taiji Electric complete the integrated circuit on the silicon wafer, they will use wire saws or lasers to cut the chips on the silicon wafer.

Because the silicon wafer itself is very fragile, if you are not careful, the chips on the silicon wafer may be affected, in order to avoid this situation, there are considerable intervals between the chips on the silicon wafer, which leads to a further decline in the utilization area of the silicon wafer.

However, in traditional chip manufacturing, this situation is unavoidable, otherwise if you get too close, there will be a little mistake in cutting, and the chip will be scrapped.

Galaxy Semiconductor's cutting process is designed based on the material handling capability of C31, which can be cut at the nanometer level.

Therefore, the silicon wafers of Galaxy Semiconductor are chips, which are densely packed and almost connected together.

As more and more original films are completed, Zhang Rujing and Wang Bosi have begun to prepare for production in Galaxy Semiconductor's factory.

Semiconductor factories must adopt dust-free and anti-static spaces, and workers must wear clean clothing.

These are mainly to ensure that the working environment of the particles, temperature, humidity up to standard, any particles and temperature and humidity do not meet the standard, may affect the performance and reliability of the manufacturing device.

In addition, traditional semiconductor factories are exposed to radiation hazards, and the most serious thing is ion implantation (once every six months, and once every year for other types of work), because of the presence of harmful ion excitation.

Photolithography is actually the same as the place where the photo is printed, and the yellow light area also has a certain amount of radiation.

Other departments are slightly slight, but the general equipment in the manufacturing plant is more dense, and some radiation you may be exposed to even if you do not work in this department, of course, it is very slight, so the purification clothing also has a certain radiation protection effect, and generally speaking, the safety of the work can still be guaranteed.

Of course, these radiation hazards are relatively few for Galaxy Semiconductor, because the process that Galaxy Semiconductor will adopt does not have lithography machines and ion implanters.

Wang Bosi and Zhang Rujing were constantly busy with the affairs of the semiconductor factory, and as time passed, circuit printing machines were installed in the factory.

On October 27, 2017, history will remember this moment.

Huang Haojie, Zhang Rujing, Wang Bosi and others are watching the engineers carefully debugging the production line, and the first chip production line of Galaxy Semiconductor has been completed.

Moreover, this production line of Galaxy Semiconductor is a universal production line, as long as the original inverted die on the printing head is replaced, other chips can be produced, and there is no need to build a new production line for a new chip.

"Mr. Huang! We're almost ready, shall we give this line a try?" Zhang Rujing was already a little impatient.

Looking at the eager crowd, Huang Haojie nodded.

"Good! All departments are in place and the trial production of chip 0 is started. Zhang Rujing shouted loudly.

Engineers and workers begin to operate the equipment.

First of all, the 30 centimeter wafer after cleaning is accurately and smoothly put into the circuit printing machine of the first layer of the circuit by the industrial robot.

Unlike the slow swallowing of lithography machines, circuit printing machines are very fast, how fast are they?

The exposure time required by the lithography machine is calculated in hours, so it often takes about one to two weeks for a chip to be cut from the integrated circuit on the silicon wafer.

However, the speed of the circuit printing machine is extraordinary, and the engraving of the first layer of circuit grooves is completed in just five minutes.

The next step is to inject conductive impurities into the grooves of the first layer of the circuit to form a switch, that is, to make a transistor.

After a process, the first layer of the circuit takes about 20 minutes to complete the transistors of the first layer of the circuit, and then continue to the process of the second layer of the circuit.

The 32-layer circuit plus the cutting chip took about 12 hours in total.

Since it was a trial production, the production line only produced 3 wafers.

Zhang Rujing looked at the chip that was cut off, and his hands couldn't help but tremble:

"Quick, check what the yield rate is?"

"Okay!"

Although everyone has been waiting here for 12 hours, it is an honor to witness the birth of the world's first 5-nanometer chip.

The size of this 5-nanometer chip is about the size of a fingernail, with a side length of 9 millimeters and a thickness of 200 microns.

A 30 centimeter wafer can cut 900 chips.

After carefully testing 2,700 chips, the chip quality inspector hurriedly handed a test report to Zhang Rujing.

"How?" Huang Haojie asked with a smile.

Zhang Rujing replied excitedly: "It's amazing, only two pieces of waste products were found, and the rest are finished products, and the excellent products are about 70%, the good products are about 28%, and the defective products are less than 2%, which is a miracle." ”

"Haha, it's not a miracle, it's the power of technology." Huang Haojie picked up a chip the size of his finger and said.

"That's right! It was just perfect! The era of chips belonging to Galaxy Technology has arrived. Wang Bosi clenched his fists excitedly.