After Hu Yiting inspected the Chongguang Central Research Institute, he had a meeting with the R&D personnel to understand the current progress of the R&D project, and discussed with Kang Yaoxiang and Wu Shihuan after the meeting, and decided that Kang Yaoxiang and Wu Shihuan and other five people would join the technical research of the Institute of Microelectronics together with Hu Yiting.

For the next two weeks, the Chongguang technical team was trapped in the microelectronics institute, working with the technicians here.

Hu Yiting wore a set of camouflage colors of "the top genius prodigy in the domestic IC industry", personally answered a series of process questions about the 0.8-micron integrated circuit technology of the Institute of Microelectronics, and personally participated in the fine-tuning and transformation of the test line.

Coming out of the dust-free laboratory, after passing through two isolation doors, Hu Yiting, Wu Dengchao, Kang Yaoxiang and other technicians took off their heavy dust-proof and anti-static work clothes in the locker room.

After a day of intense work, Director Wu still couldn't hide his excitement: "Hu Yiting, you are so godly! How did you know today that the problem lies in the temperature of the objective lens of this step-by-step repeated projection lithography machine?"

Hu Yiting smiled and covered up: " I also guess, a few days ago we have repeatedly checked the ion sputtering machine several times, adjusted the ion implantation concentration, since there is still a problem, it is likely to be caused by the instability of the projection line width of the lithography machine, and Wu you found no, we have been taped out 104 times in the past few days, the beginning of 48 times, each time is an hour apart, although the yield rate per hour is different, but there are also regular weak fluctuations, at the beginning, the peak of the high value is always at noon during the day, and the trough data is always after the early morning. In the subsequent 46 tape-outs, the machine ran continuously, and as a result, there was an obvious fluctuation curve of the good product first low, then high and then low, so I guess it is very likely that the objective lens is overheated, and there is a working temperature difference, and the projection width of the objective lens is affected by the temperature difference of about 1 degree Celsius inside the machine. ”

Kang Yaoxiang was surprised: "So you judged that there was a problem with the vacuum working mode of the lithography machine's objective, resulting in the objective lens not being able to maintain a constant temperature?"

Wu Shihuan said excitedly: "As a result, Mr. Hu guessed accurately, and asked the engineers of the Institute of Optics to turn off the vacuum pump and replace the electrostatic ion gas circulation system, and the yield rate was stabilized at the highest value at once!

Director Wu Dengchao said excitedly: "After continuous debugging from last night to this afternoon, the yield rate can now be stabilized at 50% to 55% for 10 consecutive tape-outs!

Hu Yiting's stomach suddenly made a rumbling sound.

Wu asked, "Are you all hungry?"

Shang Qi, a senior engineer at the Institute of Microelectronics, complained while changing his shirt: "At noon, everyone thinks it's too troublesome to change into dust clothes in and out, and they haven't eaten.

Wu Shihuan opened the front of his suit, touched his stomach and said, "That's it, I'm hungry!"

Wu Suo laughed: "Eat! It's delicious! A yield rate of 55 percent means that production can finally achieve profitability! No matter how much you eat, it's not too much! Hu Yiting, what do you want to eat?"

After Wu finished speaking, he took out his watch from the closet and looked at it: "Ah, it's half past nine! ”

Hu Yiting said tiredly: "It's too tired to stay up late, let's not run far, find a restaurant at the door, get some stir-fry, and come back to sleep after eating." Tomorrow we'll continue to work on the barometric pressure compensation system I mentioned. I think there is a problem with this circulating pump, and the air pressure is unstable. ”

After two weeks of cooperation, Chief Engineer Shang Qi has reached the level of superstition about Hu Yiting's ability, listened attentively to Hu Yiting's words, and immediately said: "I will arrange for people to replace the SE3111 control system of Texas Instruments on the gas circulation system with the satellite air pressure sensor and control system provided by the China National Space Administration. ”

Hu Yiting nodded weakly: "Then it's hard for you, but the system of the space agency can't be used directly, I have to rewrite the processor control software of the gas compensation system tomorrow morning, not tonight, I have to sleep." ”

Wu Suo hurriedly said: "Yes, yes, the body is important, and health is the capital of the revolution." ”

Wu Shihuan said: "I read the process improvement plan you wrote before, and I think I can also write part of this control software, or I will write it overnight, and you will help me revise it tomorrow?"

Kang Yaoxiang said: "Why don't you ask the Software Research Institute for a favor? The control software of this system needs to be reprogrammed, which will take at least a week's effort, and then it will be combined with the system to adjust the operating parameters. ”

Wu said: "That's okay, Xiaohu has been too tired recently, and he always has to do everything himself, so if he turns on the shaft, his body can't support it." I will dispatch capable personnel early tomorrow morning to quickly set up the project and write out this control system. ”

Hu Yiting thought about it and felt that it was okay, although he had a mature template to copy, it was better to use this opportunity to train the domestic team. Now that I have made the software plan, those senior software engineers have mature plans and definite goals, and there is no reason why they can't get results.

So the group hurried up and ate a belly round in the private room of a nearby restaurant. After that, Hu Yiting returned to his temporary single dormitory in the Institute of Microelectronics, went to bed and lay down, and fell asleep as soon as he closed his eyes.

With the help of Hu Yiting, the 0.8 micron process process improvement project is progressing very smoothly, the progress is fast, the two senior software engineers dispatched by Director Wu and the two experts seconded from the software research institute work together, in less than a week, the product was written out with Hu Yiting's software plan, and successfully realized the operation on the controller, and is currently combining the equipment, nervously debugging the operating parameters, until the perfect combination of software and hardware.

In a blink of an eye, on December 20, Wang Lili had already informed Hu Yiting that ARM executives would arrive in Beidu today to visit their top customer in Asia, China Chongguang Company.

ARM had already sent personnel to the front station and rented a luxury office building in the newly opened Beidu Jingcheng Building for branch operations.

On the 15th floor of the Beijing Tower, Hu met ARM Chairman John Buchanan and CEO Simon Segas for the first time, as well as his old acquaintance, ARM Marketing Manager Harold, who has now been appointed President of ARM Asia Pacific and is based at ARM's Asia Pacific headquarters in Hong Kong.

Wang Lili and Hu Yiting entered the conference room after a greeting with ARM executives, and the two sides had a friendly communication on the sales of CMP1J1 chips in the morning, and checked the sales data and the general sales target for next year.

Chairman Buchanan presented gifts to Hu Yiting and Wang Lili, two sets of British-made golf clubs, and Hu Yiting and Wang Lili also presented Buchanan and Segas with two sets of hardcover English versions of China's four famous novels as a return gift.

At noon, Chongguang Company made the east, entertained the other party to eat roast duck in Quanjude, and in the afternoon, Hu Yiting and Wang Lili led each other to visit the Great Wall.

On the beacon tower of the Great Wall, Hu Yiting proposed to Buchanan that he hoped to acquire the remaining 14.7% of ARM's shares in the hands of Olividi and become a shareholder of ARM.

Buchanan did not object to this, the old man who was over the age of sixteen was gray-haired, but his spirit was still strong: "I heard that Olivia is now in financial crisis, and your acquisition is very likely to be completed, as long as the British government does not intervene, I don't think there is any problem." ”

Hu Yiting remembered that in 1985, because of the rapid development of the business and excessive self-aggrandizement, the Italian company Olivier was stupidly optimistic about the ARM3 processor newly developed by ACRON and the 486 showdown with Intel, and nervously bought ACORN49.3% of the shares with 12 million pounds, but at the same time that ARM lost its pants, these shares shrank sharply, and had to sell about 35% of them in 93 The stake was sold to Apple Inc. for just $3 million. According to the original purchase price, it has shrunk by 80%. Later, Olivia almost went bankrupt in '96 and sold the remaining 14.7 shares of ARM to Lehman Brothers, an American investment bank, this time for another $3 million.

Hu Yiting said sincerely: "Mr. Buchanan, we are very optimistic about ARM, and the reason why we want to become a shareholder of your company is to maintain close cooperation with ARM for a long time, so please be sure to facilitate this transaction." ”

Buchanan looked at the green mountains around the beacon tower and thought to himself that if Chongguang could replace Olivier and get this insignificant shareholding, it would not make any movement in the board of directors, but it would be enough to tie this powerful emerging IC company into the ARM camp, which would indeed be beneficial to the development of ARM.

So Buchanan turned around and said to Hu Yiting: "I promise you, please send out a special person as soon as possible and come up with an acquisition plan, I estimate that you can prepare a $500 is enough, maybe not so much, but if you are financially relaxed, the probability of achieving the goal will be higher." ”

Hu Yiting nodded and smiled happily: "Okay, I will immediately arrange personnel to follow up." ”

Buchanan laughed: "But because your chips have made great profits, ARM95's profit statement will be very good, otherwise you can keep the purchase price lower." ”

Hu Yiting shrugged helplessly: "Who knew it would be like this, I hope our two companies can become close partners through this transaction." ”

Buchanan nodded, "I suggest you set up an office near Cambridge to work with us on this acquisition." If you do become a shareholder of ARM, it can be used as your UK office in the future, with your head attending board meetings.

Hu Yiting immediately replied affirmatively: "This is a great suggestion, we don't have a European branch yet, so let's simply set up a European branch in the UK." ”