acid etching

Key Steps in Chip Manufacturing – Detailed Explanation of Chip Fabrication (Part 3)

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Key Steps in Chip Manufacturing - Detailed Explanation of Chip Fabrication (Part 3)

#04Equipment and Materials4.1 Key Equipment Photolithography Machine: As the core equipment in the fabrication process, its precision and stability have a decisive impact on the quality of chip pattern transfer. Modern photolithography machines utilize advanced optical systems and precise mechanical structures to project layout patterns onto silicon wafers with extremely high resolution, enabling the accurate … Read more

Optimization Solutions for Irregular BGA Solder Points on PCB Boards

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Optimization Solutions for Irregular BGA Solder Points on PCB Boards

The design of BGA (Ball Grid Array) on PCB boards is very common in the industry, and the issue of irregular BGA sizes can severely affect the soldering quality and electrical performance of PCBs. To effectively improve this issue, it is necessary to address it from the aspects of design and manufacturing processes.1. Package Design1. … Read more

From Introduction to Abandonment: A Detailed Manufacturing Process of Chips!

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From Introduction to Abandonment: A Detailed Manufacturing Process of Chips!

Source: Fresh Date Classroom Original Author: Little Date Jun This article mainly introduces the process of chip manufacturing. Oxidation First, on the wafers that have been cut and polished, we need to perform an oxidation step. The purpose of oxidation is to form a protective film (oxide layer) on the fragile surface of the wafer. … Read more

Etching Process in Semiconductor Technology

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Etching Process in Semiconductor Technology

Yangzhou Lattice Semiconductor specializes in providing high-purity, large-size single crystal silicon & polycrystalline silicon materials, and can perform deep processing customization such as cutting, grinding, polishing, and drilling, including silicon wafers, silicon components, silicon target materials, silicon seed crystals, silicon electrodes, silicon rings, silicon window pieces, and other silicon products. The etching technique is a … Read more

Analysis of Failure Causes for PCB Via Breakage (Corrosive Via Breakage)

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Analysis of Failure Causes for PCB Via Breakage (Corrosive Via Breakage)

1. Introduction The copper in the vias of a printed circuit board (PCB) is akin to the neural network (blood vessels) of the human body, interspersed within the substrate “body” to provide the basic pathways for signal transmission and current conduction. Once a via copper break occurs, it is like a nerve being severed, preventing … Read more

Overview of the PCB Industry Chain (Including Complete PCB Processing Process)

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Overview of the PCB Industry Chain (Including Complete PCB Processing Process)

The PCB industry chain is structured as follows: Upstream Raw Materials — Midstream Substrates — Downstream PCB Applications Upstream Raw Materials Upstream raw materials include copper foil, resin, fiberglass cloth, wood pulp, ink, and copper balls, among which copper foil, resin, and fiberglass cloth are the three main raw materials. Copper foil is the primary … Read more

Complete PCB Processing Workflow (Including List of Major PCB Manufacturers in Shenzhen)

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Complete PCB Processing Workflow (Including List of Major PCB Manufacturers in Shenzhen)

Most engineers send the PCB files or Gerber files to the manufacturer and then wait for the boards to be returned. However, many hardware development professionals may work for years without the opportunity to visit a PCB manufacturing facility to see the entire production process. Today, I will take you on a tour to see … Read more

DIY PCB Fabrication Using Acid Etching: A Step-by-Step Guide

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DIY PCB Fabrication Using Acid Etching: A Step-by-Step Guide

Abstract: This article introduces a very old PCB manufacturing process – the etching method. The advantages of this process include low cost and short time. However, there are also significant drawbacks, such as the complexity of making double-sided boards and environmental concerns! The specific manufacturing method is as follows: Designing the PCB 1. Design the … Read more

How the Chip 035 Lithography Machine Etches Chips

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How the Chip 035 Lithography Machine Etches Chips

What are the stages of chip manufacturing? First, let’s talk about the manufacturing environment. The chip factory has high requirements for environmental humidity, temperature, pressure, magnetic fields, vibrations, and the number of bacteria indoors. For example, its cleanliness is thousands of times higher than that of an operating room. Its raw materials, mainly silicon extracted … Read more