Company Profile
Simple introduction
KLA Corporation (formerly KLA-Tencor Corporation, ticker: KLAC) is an American company providing process control and yield management services related to semiconductor manufacturing.
Formed by the merger of two companies
The current KLA was formed in 1997 through the merger of KLA and Tencor, founded in 1975 and 1977 respectively. The merged company was initially called KLA-Tencor, and on January 10, 2019, it announced its name change to KLA. The name change officially took effect in July 2019.
KLA vs. Applied Materials and Lam Research
KLA’s Strengths
KLA differs significantly from leading chip equipment manufacturers Applied Materials and Lam Research. KLA’s business is not primarily focused on deposition, etching, lithography, or large-scale wafer fabrication equipment. KLA’s core strength lies in semiconductor process control.
KLA-Tencor’s competitive advantage lies in wafer inspection, metrology, yield management, defect detection, and manufacturing quality assurance. This makes KLA-Tencor one of the most distinctive business models among major semiconductor companies.
KLA-Tencor almost merged with Lan Research
In October 2015, Lan Research announced plans to acquire wafer inspection equipment supplier KLA-Tencor for $10.6 billion, a move seen as a major consolidation in the semiconductor industry. However, in October 2016, Lan Research announced the termination of the acquisition offer, citing concerns that the transaction would not receive regulatory approval from the U.S. Department of Justice due to antitrust issues.
Top 3 US Chip Equipment Vendor
Without KLA, impossible to manufacture chips
The specialties of the three U.S. companies among the world’s top five semiconductor equipment manufacturers are as follows:
- Applied Materials specializes in equipment for depositing chemical thin films on silicon wafers during the wafer fabrication process.
- Lan Research specializes in etching circuitry equipment for silicon wafers.
- KLA-Tai possesses some of the world’s best equipment, capable of detecting nanometer-level errors on wafers and lithography masks.
One thing is certain: essentially without Applied Materials, without Lam Research, there is no KLA-Tai; even with equipment from Japanese semiconductor equipment manufacturers, it’s impossible to produce chips.
World top 5 chip equipment vendors
According to Bloomberg data, the world’s top five semiconductor equipment manufacturers in 2018 were:
- Applied Materials (ticker: AMAT): see my post of “How does Applied Materials, lord of semiconductor equipment, make money?”
- ASML (ticker: ASML): see my posts of “Why was ASML founded?” and “ASML, who dominate TSMC’s fate“
- TEL (Tokyo Powertech)
- Lam Research (Lam Research): see my post of “How does Lam Research, top chip equipment player, make money?“
- KLA: this post
- NAURA: China’s NAURA has become the world’s sixth-largest semiconductor equipment supplier.
These five semiconductor manufacturers accounted for over 70% of the global semiconductor equipment manufacturing market in 2018, thanks to their leading technology and strong financial backing. See my post of “Top five semiconductor equipment providers” for details.
Main Business Overview
Wafer Quality Control
Unlike Applied Materials and Lam Research, KLA typically does not perform the actual wafer manufacturing steps. Instead, KLA is responsible for checking whether manufacturing is completed correctly. You can think of KLA as the “quality control layer of the semiconductor industry.”
Three Business Units
- Wafer Inspection: KLA’s core business and largest segment, accounting for over 50% of total revenue. Its purpose is to detect microscopic defects on wafers.
- Patterning: Patterning tools are used to ensure that wafer patterns are correctly aligned after photolithography. It accounts for over 18% of total revenue.
- Services Segment: Accounts for 22% of the company’s total revenue.
Capital Market Performance
Valuation
As of June 5, 2026, KLA-TEX’s price-to-earnings ratio was 54.62, with a market capitalization of US$252 billion.
Stock Price Performance
As of June 5, 2026, KLA-TEX’s stock price has increased by 51.37% from 2026 to June 5; and by 132.63% over the past year.
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