★ Welcome to Star Mark Guoke Hard Technology ★ Selling water is a highly profitable industry, with profit margins reaching 60% at one point, and selling gas might also be a good business. As the largest industrial gas supplier, the French Air Liquide Group has maintained a gross margin of over 60% in recent years, … Read more
Semiconductor materials include wafer manufacturing materials and packaging materials. Wafer manufacturing materials include silicon wafers, mask plates, electronic gases, photoresists, CMP polishing materials, wet electronic chemicals, target materials, etc. Packaging materials include packaging substrates, lead frames, bonding wires, encapsulation materials, ceramic substrates, chip bonding materials, and other packaging materials. Table 1-1 Classification of Semiconductor Materials … Read more