The “opening pad” process for image sensors (especially CMOS image sensors, CIS), officially known as “aluminum pad layer etching” or “passivation layer opening” process, is a critical step in the backend of chip manufacturing. The purpose of this step is to open the insulating layer (passivation layer) on the pads that electrically connect the internal … Read more
The quality of semiconductor materials directly impacts the manufacturing of semiconductor products. For instance, the performance of photoresists can directly affect the performance and integration of chips, determining the feasibility of photolithography processes. Therefore, selecting high-quality semiconductor material suppliers is crucial. Companies like JiuRi New Materials and Nanda Optoelectronics not only possess strong capabilities but … Read more
The major stocks include Zhongwei Company, Xinyuan Co., Ltd., Haiguang Information, Lanke Technology, SMIC, Northern Huachuang, Loongson Technology, and others primarily from the Science and Technology Innovation Board.The trend stocks include Demingli, Liyang Chip, Wavelength Optoelectronics, Fuzhijing Technology, Zhangjiang Hi-Tech, Qingshuo Kaimeteqi, HuaSoft Technology, and Chengbang Co., Ltd.The panic selling at the end of the … Read more
The domestic production of semiconductors is actually a response to external pressures. After the US-China trade war in 2018, with the US cutting off supplies (such as halting chip supplies to Huawei), we realized how dependent we are on imported high-end chips. The government quickly invested heavily to achieve self-sufficiency, with the National Integrated Circuit … Read more
Metal halide perovskite materials (MHPS) exhibit excellent optoelectronic properties and have broad application prospects in fields such as photovoltaics, light-emitting diodes, and lasers. A key step to fully exploit the potential of these materials is to achieve high-resolution, top-down patterned large-scale chip integration. Developing such a patterning method for perovskite films is challenging due to … Read more
After a peak yesterday, the robotics sector continues its momentum today. The strength of Wolong is undeniable, and last night, analysts were optimistic about the main rise of robotics, with the robotics sector index reaching a new high, being the only sector willing to actively expand its heights. The core capacity is supported by Wolong, … Read more
1 The mask is a key consumable in the photolithography process. The main processes in semiconductor wafer manufacturing include wafer preparation, pattern transfer, material doping, deposition, etching, and packaging. The photolithography process is the core procedure in semiconductor manufacturing, which includes: incoming material cleaning, drying, HDMS adhesion promotion, cold plate, pre-coating baking, cold plate, edge … Read more
Click the blue text Follow us Chips, as the “brain” of modern technology, are ubiquitous from smartphones to aerospace satellites. But did you know? This precision device, the size of a fingernail, originates from unassuming quartz sand. Today, we will unveil the mystery of chip manufacturing and see how it transforms from “sand” into the … Read more
The most challenging aspect of handcrafted circuit boards lies in the wiring of the circuits. Most existing technologies can only utilize planar wiring principles, making it difficult to adopt three-dimensional wiring, indicating that this is also a direction for development. Below is a sound-controlled clap switch circuit, which can be constructed with just thirty components. … Read more
This article is authorized to be reproduced from the public account “Semiconductor Industry Observation”, ID: icbank, Author: Du Qin Today, almost everyone knows about lithography machines; the most advanced EUV lithography machines are as tall as a new Boeing jet. In the development history of lithography machines, various manufacturers from different countries have emerged, the … Read more