The next day, January 27, Monday.

Evan, who confirmed that neither the Lyon family nor Danforth had any abnormal movement, returned to Pasadena as usual.

Carl and the school's patent specialist had a great disagreement about some of the terms of the patent, and Evan needed to give his opinion. After all, he was the main owner of the patent.

After rushing to the lab, Evan listened to what Carl said first.

"Evan, I think we should avoid this point of field effect devices. The reason is that, according to the information I found, a field effect-based device was applied for a related patent as early as 1925 by Julius Lilienfeld."

"I think we just need to reflect this key innovation in point contact."

Evan thought about it and decided to support Carl's opinion. Doing so would reduce the risk of being picked up by the Patent Office and get the patent more smoothly.

Moreover, in terms of commercial value, point-to-contact transistors are actually not very good. It is just the beginning, and there is still a lot of work to be done next, and Evan doesn't want to waste too much time on this.

After discussing with Leiden, Evan decided to publicly show their achievements to the school professors in the evening. As for who to invite, both of them felt that the more the better. Therefore, after making the necessary preparations, Evan and Leiden called separately.

In the afternoon, Evan went to the "Theoretical Physics" class. This time, the class was relatively normal, and Evan was not specifically targeted by the professor.

Since Evan posted a "Multi-World Interpretation" in class, Professor Anderson has completely given up on the idea of ​​accepting him as a student.

After the course, Evan took the initiative to approach Professor Anderson and invited him to attend the small results showcase in the evening.

Although Professor Anderson doesn't like Evan very much now, he still accepts his invitation.

He was curious about what research made Evan not only reject himself but also Pauling from the Department of Chemistry and Chemical Engineering.

At 7 p.m., Warren Leiden Solid Physics Group Laboratory.

The professors who accepted the invitation walked into the laboratory one after another.

Among these people, teachers in the Department of Physics, Mathematics and Electronic Engineering accounted for the majority, but there were also many teachers in other departments. Evan even saw several people wearing clothes with JPL.

Evan is sure that he has not invited the JPL person, and it seems that it is Leiden's relationship.

Of course, Evan did not forget to invite the department chair Professor Watson and Dean Mr. Dubridge, who gave them a lot of support.

The two gentlemen were very friendly and came to the laboratory in their busy schedule.

After a brief greeting with the dean and others, seeing that everyone was already here, Evan clapped his palms, attracted everyone's attention and announced the start of the public display.

Evan personally presided over the experiment and did not give the opportunity to Leiden.

"Gentlemen, since Faraday used silver sulfide for experiments in 1834 and found that its resistance decreases with temperature rise, materials like semiconductors have entered the sight of researchers. Later, the rectification effect of semiconductors was discovered, which gave semiconductors more attention..."

Only after briefly introducing the history of semiconductor research did Evan start to talk about their achievements.

"At this moment, we will show you another new application of semiconductors. Come and see..."

Evan first talked about their homemade device and then demonstrated the electrical amplification effect of the device.

“Wow!”

When they saw that the collector current showed clearly that it was much larger than the emitter current, the people present all showed a look of amazement.

Several professors who have a strong attainment in electronic engineering were particularly excited. They naturally understood how effective this little thing was. Not to mention, the vacuum tube that consumed a lot of power and had difficulty maintaining was about to be swept into the garbage dump.

Those who came from JPL also showed considerable interest.

"We named this device as a point-contact transistor. Point-contact transistor represents its structure. Transistor is our new word and is taken based on its resistance conversion characteristics."

"About the working principle of point-resistant transistors, we will publish the article in "PhysicalReview", you can pay attention to it."

Because it was just a display of results, Evan skipped the principle part and didn't say much.

When Evan finished introducing the article, Dean Dubridge took the lead in applauding.

"Evan, I really didn't expect you to make it so quickly."

Dubridge patted Evan on the shoulder kindly and said, "What surprised me even more was that you would actually think of showing your achievements publicly."

Evan said: "Dean, we do this with a purpose."

"The development and research of transistors cannot be achieved by me and Leiden alone. We need more manpower, not only theoretical research, but also engineering."

Dubridge nodded thoughtfully: "So, have you put your ideas on these people?"

Evan nodded openly and admitted: "I hope my plan will not fail, after all, it is quite risky to change careers."

"People are always willing to stay in their comfort zone. They will not want to change unless they have to."

As for Evan's other purpose - to preempt the small-scale announcement of the results and erect the first-person transistor flag to deal with possible unfair competition at Bell Labs, he would not say it explicitly.

After the experiment was demonstrated, some people who had watched the fun left on their own, and those who were really interested in transistors were naturally kept to the end.

Therefore, the original achievements exhibition became an academic exchange symposium.

At the symposium, Evan made a prophetic imagination of the future application of transistors.

"If you replace vacuum tubes with transistors, the electronic general-purpose computer at the University of Pennsylvania does not need to occupy a building. Its size and power consumption can be reduced by hundreds of times, or even more. And its computing power can increase by a certain proportion every once in a while."

Evan's imagination was recorded in his diaries by many people, and some even appeared in his biography.

It is called the most original version of later "Warren's Law".

The second day after the results show, the patent application for point-to-contact transistors was officially submitted. On the fourth day, the articles that had been revised were stamped and sent out. On the fifth day, the Solid Physics Group joined two newcomers.

On this day, Evan and Leiden were called to the dean's office.

"Please sit down!"

Dubridge smiled and said to the two, "I'm asking you to come, there are two things."

"First..." He looked at Leiden and said, "Dr. Leiden, our college decided to hire you as an assistant professor in the Department of Physics Mathematics and Electronic Engineering. Depending on the situation, you will be promoted to associate professor within three years at the latest."

"What do you think?"

Leiden seemed not too surprised, smiled relaxedly and said, "The honor is so great."

"Very good!" Dubridge nodded happily and turned to Evan and said, "Evan, the institute has decided to increase support for the Solid Physics Team. The team will become a formal laboratory, and the laboratory director is temporarily represented by Professor Watson, and the specific affairs are decided by you and Leiden."

"So, you will be responsible for the activities you have proposed to invite experts in solid physics and semiconductor research across the country to visit the school to contact transistors."
Chapter completed!