Chinese semiconductor industry

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Fedupwithlies

Fedupwithlies

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Soon all-Chinese mainstream gaming PC will be a reality.

Performance is middle of the pack for now, which is a bit surprising to me. 2060 or 3060 equivalent, they're saying.
The other gpu, from Jingjiawei, is said to be at the 1050 or 1080 equivalent. So these cards are basically one generation ahead of the Jjw ones.

12nm Process... Maybe possible to make it in a chinese fab in a year?

But supposedly some hardwares already been sent out so in a year we may be well into the product lifecycle.
 
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ansy1968

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From @Oldschool, to the experts at what Node or processes is Quantum Chip is based on? 40nm, 28nm or 14nm? or it is a specialized chip FAB differently from the established silicon based method. As what @Oldschool mentioned below .

zhejiang university built 2 experimental quantum chip.

Technically, it is an electronic circuit based on a superconducting Josephson junction, which can be flexibly constructed by semiconductor micro-nano technology.



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近年来，量子计算机的研制已成为全球科技战略的必争高地，而量子芯片研制是量子计算机研究的核心。12月17日上午，浙江大学发布“莫干1号”“天目1号”超导量子芯片，分别
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FairAndUnbiased

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ansy1968 said:
From @Oldschool, to the experts at what Node or processes is Quantum Chip is based on? 40nm, 28nm or 14nm? or it is a specialized chip FAB differently from the established silicon based method. As what @Oldschool mentioned below .

zhejiang university built 2 experimental quantum chip.

Technically, it is an electronic circuit based on a superconducting Josephson junction, which can be flexibly constructed by semiconductor micro-nano technology.



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近年来，量子计算机的研制已成为全球科技战略的必争高地，而量子芯片研制是量子计算机研究的核心。12月17日上午，浙江大学发布“莫干1号”“天目1号”超导量子芯片，分别
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Click to expand...
it is not a standard fab process. Josephson junctions are superconductor-insulator-superconductor junctions. It is not a transistor (no gate control), it is a quantum junction device.

Simply put, a silicon chip has transistors containing doped silicon channel controlled by a gate that has variable voltage applied. The doping allows for the channel to switch between high and low impedence states with application or removal of voltage at the gate. The gate voltage (Vg) is distinct from the bias voltage between source and drain (Vds)

A Josephson junction does not have a gate voltage applied to it. The bias voltage is applied directly to control the supercurrent. All phenomena are related solely to the bias voltage. The relevant part for fab processes is that there's no gate process (no need for trench etching) but requires high precision deposition processes to fabricate the junction. In addition, none of the materials used are silicon, so the entire structure has to be built from deposited films.
 
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ansy1968

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FairAndUnbiased said:
it is not a standard fab process. Josephson junctions are superconductor-insulator-superconductor junctions. It is not a transistor (no gate control), it is a quantum junction device.

Simply put, a silicon chip has transistors containing doped silicon channel controlled by a gate that has variable voltage applied. The doping allows for the channel to switch between high and low impedence states with application or removal of voltage at the gate. The gate voltage (Vg) is distinct from the bias voltage between source and drain (Vds)

A Josephson junction does not have a gate voltage applied to it. The bias voltage is applied directly to control the supercurrent. All phenomena are related solely to the bias voltage. The relevant part for fab processes is that there's no gate process (no need for trench etching) but requires high precision deposition processes to fabricate the junction. In addition, none of the materials used are silicon, so the entire structure has to be built from deposited films.
Click to expand...
@FairAndUnbiased bro thanks for the explanation, learned a lot and Happy new Year!
 
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dingyibvs

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FairAndUnbiased said:
it is not a standard fab process. Josephson junctions are superconductor-insulator-superconductor junctions. It is not a transistor (no gate control), it is a quantum junction device.

Simply put, a silicon chip has transistors containing doped silicon channel controlled by a gate that has variable voltage applied. The doping allows for the channel to switch between high and low impedence states with application or removal of voltage at the gate. The gate voltage (Vg) is distinct from the bias voltage between source and drain (Vds)

A Josephson junction does not have a gate voltage applied to it. The bias voltage is applied directly to control the supercurrent. All phenomena are related solely to the bias voltage. The relevant part for fab processes is that there's no gate process (no need for trench etching) but requires high precision deposition processes to fabricate the junction. In addition, none of the materials used are silicon, so the entire structure has to be built from deposited films.
Click to expand...

Without a second input in the form of Vg how can it perform logic operations? Or amplify anything for that matter? Or is it for an entirely different purpose than FETs?
 
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foofy

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The high-energy ion implanter equipment of Kingstone Semi has successfully passed the verification and completed the acceptance.

In May of this year, Kingstone Semi's low-energy large-beam ion implanter was the first to complete the equipment verification and acceptance work in the domestic 12-inch mainstream integrated circuit chip manufacturing plant.

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ansy1968

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From @Oldschool aside from computing and radar what else? any more application aside from the two mentioned?

Hi
An application of quantum computing is the quantum radar .

Anti stealth radar against stealth fighters such as F22, F35, B2

Quantum chips manufactured using different process than silicon chips so China is not restricted.

Taiwan media did one on China quantum radar. There is an image of B2
 
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