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REVENUE | 12 Months Ended
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Dec. 31, 2023
REVENUE |
REVENUE | NOTE 3. REVENUE Disaggregation of Revenue The following tables present additional information regarding our revenue: ​ Revenue by Market
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Years Ended December 31,
​ |  |  | 2023 |  | 2022 |  | 2021
Semiconductor Equipment | ​ | ​ | $ | 743,794 | ​ | $ | 930,809 | ​ | $ | 710,174
Industrial and Medical | ​ | ​ |  | 474,449 | ​ |  | 426,763 | ​ |  | 341,176
Data Center Computing | ​ | ​ | ​ | 249,874 | ​ | ​ | 327,466 | ​ | ​ | 270,924
Telecom and Networking | ​ | ​ | ​ | 187,693 | ​ | ​ | 160,384 | ​ | ​ | 133,680
Total | ​ | ​ | $ | 1,655,810 | ​ | $ | 1,845,422 | ​ | $ | 1,455,954
​ Revenue by Region
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Years Ended December 31, |
​ |  |  | 2023 |  | 2022 |  | 2021 |
North America | ​ | ​ | $ | 724,481 | ​ | 43.8 | % | $ | 857,490 | ​ | 46.5 | % | $ | 665,479 | ​ | 45.7 | %
Asia | ​ | ​ | ​ | 713,571 | ​ | 43.1 | ​ | ​ | 754,997 | ​ | 40.9 | ​ | ​ | 597,830 | ​ | 41.1 | ​
Europe | ​ | ​ | ​ | 212,368 | ​ | 12.8 | ​ | ​ | 219,119 | ​ | 11.9 | ​ | ​ | 179,056 | ​ | 12.3 | ​
Other | ​ | ​ |  | 5,390 |  | 0.3 | ​ |  | 13,816 |  | 0.7 | ​ |  | 13,589 |  | 0.9 | ​
Total | ​ | ​ | $ | 1,655,810 |  | 100.0 | % | $ | 1,845,422 |  | 100.0 | % | $ | 1,455,954 |  | 100.0 | %
​ Revenue by Significant Countries ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Years Ended December 31, |
​ |  |  | 2023 |  | 2022 |  | 2021 |
United States | ​ | ​ | $ | 598,359 | ​ | 36.2 | % | $ | 723,564 | ​ | 39.2 | % | $ | 561,312 | ​ | 38.5 | %
China | ​ | ​ | ​ | 165,940 | ​ | 10.0 | ​ | ​ | 180,355 | ​ | 9.8 | ​ | ​ | 188,708 | ​ | 13.0 | ​
All others | ​ | ​ | ​ | 891,511 | ​ | 53.8 | ​ | ​ | 941,503 | ​ | 51.0 | ​ | ​ | 705,934 | ​ | 48.5 | ​
Total | ​ | ​ | $ | 1,655,810 |  | 100.0 | % | $ | 1,845,422 |  | 100.0 | % | $ | 1,455,954 |  | 100.0 | %
​ We attribute revenue to individual countries and regions based on the customer’s ship to location. Apart from the United States and China, no revenue attributable to any individual country exceeded 10% of our total consolidated revenues during the periods presented. Revenue by Category
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years Ended December 31,
​ |  | 2023 |  | 2022 |  | 2021
Product | ​ | $ | 1,484,007 | ​ | $ | 1,686,053 | ​ | $ | 1,318,213
Services and other | ​ | ​ | 171,803 |  | ​ | 159,369 |  | ​ | 137,741
Total | ​ | $ | 1,655,810 |  | $ | 1,845,422 |  | $ | 1,455,954
​ Other revenue includes certain spare parts and products sold by our service group. ​ Significant Customers During the year ended December 31, 2023, Applied Materials, Inc. accounted for 22% of our total revenue. During the years ended December 31, 2022 and 2021, Applied Materials Inc. and Lam Research Corporation accounted for 20% and 14%, respectively, and 20% and 10%, respectively, of our total revenue. As of December 31, 2023 and 2022, the account receivable balance from Applied Materials, Inc. accounted for 26% and 18%, respectively, of our total accounts receivable. No other customer’s account receivable exceeded 10% of our total accounts receivable in the periods presented.

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