As soon as I got on the bus, I saw a lot of thin people, such as Lu Xuedong and Zhang Jingjian. He asked, "Xuedong needs more rest. The body is revolutionary money and Lao Zhang, and so are you."
"Thank you, Chairman." Zhang Jingjian leaned over and made a way.
Liu Xuedong, on the other hand, didn’t digress too much. The topic "Xiu Yuan, you came back just in time. Today is just the second time."
"Which car?"
"No.5 workshop" Lu Xuedong said as he led the way.
Many employees greeted him all the way, and the semiconductor base was in a hurry, which was similar to his Texas semiconductor base.
What he saw in the face was that the employees were tired and full of hot eyes, which was a kind of confident light.
This is also the phenomenon that the researcher is different from other companies. People are more confident and full of fighting spirit.
Come to No.5 factory building.
A production line equipped with "Yi Yi-2" chip was used in Fuxi chip stream 2.
When Huang Xiuyuan put on protection and entered the testing room, the production line had already lost more than 20 large pieces.
A large piece without deep processing was cut into pieces by a laser cutting machine, and Huang Xiuyuan picked up the pieces of semi-finished chips.
The chip is very small, a circle smaller than a finger.
Lu Xuedong introduced that "Fuxi chip has become 1.6 billion transistors, and it performed well in the initial test and operation."
"What about the problem?" Huang Xiuyuan put that half-finished chip.
Liu Xuedong took out a tablet computer and called up the phase test situation, which listed hundreds of large and small problems.
He is not surprised by this. It is absolutely impossible to design a chip for the first time or this difficult CPU chip in one step.
Even if it is a mature design scheme, there may be some unexpected problems due to machining errors in the actual tape-sliding process.
Or a slight vibration, or a dust particle or aging equipment may lead to different results.
Textile method is better, if it is photolithography method, not only the processing environment is very demanding, but also the processing efficiency is high.
Slip-side textile method can make 20,000 to 40,000 pieces in a single time, while photolithography method can’t be done without tens of millions.
Streaming is also one of the advantages of the new chip body.
China, ZTE, Ziguang and Datang are based on alternating design and streaming. For example, Ziguang high-end chips have been streamed more than five times this month alone.
If it is photolithography, according to the frequency of purple light, when their chip design is mature, it is estimated that the number of chips will be several billion
Low-cost streamers give many semiconductor companies more opportunities to design streamers, which is the advantage of low-cost trial and error.
In this way, many novice semiconductor designers have grown up rapidly.
Anyway, just build it hard once, and if it doesn’t work, it will flow once or once.
Huang Xiuyuan saw that the problem of Fuxi chip was mainly because it was very difficult to ensure 1.6 billion crystals in the first design, but it was very difficult for employees of various companies not to interfere with each other.
"One fifth of the transistors have failed in different degrees due to mutual interference, and it is still immature." Huang Xiuyuan shook his head.
Liu Xuedong is also a face of embarrassment.
"Chairman, we didn’t expect it to be so serious. No problems were detected in the simulation calculation," Zhang Jingjian explained.
Huang Xiuyuan comforted while continuing to look at the details of the tablet problem. "I didn’t blame you for this situation. I expected it."
There is no problem in supercomputing simulation calculation, but there are a lot of problems after actual manufacturing, which are caused by insufficient accumulation of industrial software databases