Siheyuan: Starting from a fitter

Chapter 132 Report ([-])

On the second morning, Li Guocheng found the best three among the six circuit boards and soldered them himself.After completion, put in the special test tool and start debugging the three-level amplification of the chip.This work is very simple, just change the design parameters of each level and replace the resistors.

Soon, the debugging of the three circuit boards was completed.Put it into a sandalwood box and connect the knobs and switches.

Insert the battery, turn on the switch, and adjust the channel. Immediately, a model drama with a sense of the times comes from the speakers.Continuous channel tuning can be received normally.

Due to the addition of a damping design to the knob, it has completely solved the problem that after the radio is tuned, the adjustable capacitor will shift due to vibration and deviate from the radio channel, causing the speaker to make rustling noise and need to be re-tuned.

After installing the back panel, he took three radios and went to find Wu Liankui. Before leaving, he asked the three of them to continue optimizing the process.

"You reorganize the process of chip production and circuit board production. If you find something unreasonable, I will reward you."

"Old Wu, let's go find Director Li." Li Guocheng shook the radio in his hand.

"It's done, great, let's go." Wu Liankui had been waiting for this day for a long time.

Looking at the modern and beautiful radio, Director Li couldn't put it down. He no longer paid attention to the sound coming from the speaker, but looked over it again and again, groping for the casing with his hands, just like holding the parts.

"Yes, it's so beautiful. Today we will work separately to ensure that the submission is completed before the party's birthday." Li Huaide was full of confidence.

"Director, after discussion in our laboratory, we feel that all products can be called the Dawn series, such as Dawn II machine tools, Dawn I radios, etc. Do you think it is feasible?"

Li Huaide thought for a while and said, "I think it's okay. Let's report it to Shuguang first and see what the ministry's opinion is."

Li Guocheng used a pencil to simply draw a graphic of the trademark on the paper. On the left is the two big characters of Shuguang, and on the right is divided into two lines.

Forgive Li Guocheng's design ability. Apart from his talent in engraving, he is also a primary school student in fonts, let alone Li Huaide and Wu Liankui. Apart from saying yes, he has no suggestions at all.

Now that the style of the trademark was determined, Li Guocheng took three radios and carved the pattern on the reserved position.

Li Guocheng left two radios behind and returned to the laboratory first. He called Zhang's father and told him to report to his home that evening.

After dinner, in the study, the same three people, in the same position.

Mr. Zhao is playing with a large number of radios. Not to mention their appearance, compared to the mainstream radios on the market today, their volume is more than half smaller than the smallest ones, and their weight is less than one-tenth.

The definition of the knob is the same as that of most radios, so Mr. Zhao turned it on as soon as he got it and adjusted the station freely.

"This radio is not only compact, but the sound is clearer. Even if it is turned to the maximum volume, the noise is low," said Mr. Zhao with a curious look on his face.

For fun, Li Guocheng directly moved over the tried-and-tested receiving circuit of later generations, with three stages of amplification, each stage has a second-order filter, and the signal-to-noise ratio is well controlled.

If Li Guocheng is willing, he can write two papers.Unfortunately, this is no longer necessary.

"Yes, grandpa, there are multi-stage filtering inside, so the signal is more prominent. In fact, there is another advantage. Because of the high level of integration, the power consumption of the whole machine is much lower than that of other brands."

Li Guocheng opened the back cover and said, "Look, this is the special chip I told Dad Zhao on the phone. The high level of integration and high sound quality have a lot to do with him."

Mr. Zhao and Mr. Zhao looked around curiously, and Li Guocheng picked up the small box that had been prepared from his side, which contained the defective chip and a packaged chip.

"Look, this is the latest product developed by our factory, a radio-specific chip. The model is HX.LBQ.6701. This is the core of the wafer, and this is packaged."

"This is the chip. I always heard at the conference that the West is researching the chip. What exactly does it look like? It's about Yunshan fog cover. From this look, it's very clear, OK," Mr. Zhao said with emotion.

"How big is the gap between us and the West?" Dad Zhao is more concerned about this.

"I dare not say, because there is no channel for obtaining relevant information, but according to the description in the magazines in the library, it should be inferred that they are also in the initial stage." Li Guocheng dare not talk nonsense, otherwise how to explain.

"In fact, this chip is not the most important thing. The most important thing is that through the joint efforts of our laboratory, we now have a full set of production equipment from wafer preparation, chip production, to testing, and each equipment is no better than Western ones. behind".

"And our team has also been trained. Only with these equipment, we can design chips that meet all aspects of the country's needs."

"What you said made me want to visit your factory." Mr. Zhao's curiosity was aroused again.

"Dad, I'll go take a look first and bring the video equipment so you can have a reference then," Dad Zhao suggested.

"Okay, it's good to have a video. I will have a communication with the big leader in advance. Now the big leader just pays more attention to semiconductor technology." Mr. Zhao deliberately emphasized the big leader's intention.

"Dad, is it still necessary for Guocheng to keep a low profile now?" Dad Zhao was also confused about this.

"I'm afraid it will be difficult this time. According to Xiao Li, it seems difficult to cover up this time. As long as the big leaders pay attention, no one will dare to cover it up."

"Grandpa, Dad, I have a small request, that is, if it is exposed, follow-up activities will be inevitable. But now chip development is at a very critical moment. Do you think there is any way to allow me to do research with peace of mind."

"It's a bit difficult, given the current trend, but you can try to communicate with the big leaders. I guess the big leaders have a way." Mr. Zhao was not sure.

"If it works, that's great. Chips have just started and are officially in the stage of rapid development. If possible, let Wu Liankui show his face," Li Guocheng chuckled.

"You can try it." Mr. Zhao also laughed.

"There is one more important thing. I need your help to consider the feasibility." Li Guocheng thought of his second goal today.

"It's just a patent application." Li Guocheng's expression became serious.

Mr. Zhao looked unconcerned, "I've heard of patents. They are something foreigners play with, but they are not easy to use in our country."

Father Zhao obviously had different opinions, but he hesitated, glanced at Li Guocheng, and said nothing.

Li Guocheng noticed Father Zhao's movements and knew why without even thinking about it. He had no choice but to bite the bullet himself.

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(End of this chapter)