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SEGMENT INFORMATION (Net Revenue by Capital Equipment End Markets Served) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 02, 2021 | Oct. 03, 2020 | Sep. 28, 2019
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenue |  | $ 1,517,664 | $ 623,176 | $ 540,052
Capital Equipment |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenue |  | 1,312,576 | 462,059 | 386,820
Capital Equipment | General Semiconductor |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenue | [1] | 928,259 | 290,220 | 209,885
Capital Equipment | Automotive & Industrial |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenue |  | 129,817 | 60,169 | 77,365
Capital Equipment | LED |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenue |  | 187,568 | 76,574 | 56,138
Capital Equipment | Memory |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Revenue |  | $ 66,932 | $ 35,096 | $ 43,432
[1] | The Company noted a growing portion of the general semiconductor and LED end market is increasing in complexity and driving more capital intensity, therefore demanding more advanced packaging solutions. This has reduced the relevance of the advanced packaging end market. In view of this, sales previously defined as advanced packaging will be primarily categorized within the general semiconductor end market.

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