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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS (Notes) | 9 Months Ended
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Jul. 03, 2021
Commitments and Contingencies Disclosure [Abstract] |
COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS | COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS Warranty Expense The Company's equipment is generally shipped with a one-year warranty against manufacturing defects. The Company establishes reserves for estimated warranty expense when revenue for the related equipment is recognized. The reserve for estimated warranty expense is based upon historical experience and management's estimate of future warranty costs, including product part replacement, freight charges and labor costs incurred in correcting product failures during the warranty period. The following table reflects the reserve for warranty activity for the three and nine months ended July 3, 2021 and June 27, 2020:
| Three months ended |  | Nine months ended
(in thousands) | July 3, 2021 |  | June 27, 2020 |  | July 3, 2021 |  | June 27, 2020
Reserve for warranty, beginning of period | $ | 15,574 |  |  | $ | 14,368 |  |  | $ | 9,576 |  |  | $ | 14,185 |
Provision for warranty | 4,325 |  |  | 3,331 |  |  | 15,654 |  |  | 9,749 |
Utilization of reserve | (3,004) |  |  | (3,189) |  |  | (8,335) |  |  | (9,424) |
Reserve for warranty, end of period | $ | 16,895 |  |  | $ | 14,510 |  |  | $ | 16,895 |  |  | $ | 14,510 |
Other Commitments and Contingencies The following table reflects obligations not reflected on the Consolidated Condensed Balance Sheet as of July 3, 2021:
|  |  | Payments due by fiscal year
(in thousands) | Total |  | 2021 |  | 2022 |  | 2023 |  | 2024 |  | 2025 |  | thereafter
Inventory purchase obligation (1) | $ | 671,864 |  |  | $ | 56,825 |  |  | $ | 615,039 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
(1)The Company orders inventory components in the normal course of its business. A portion of these orders are non-cancellable and some orders impose varying penalties and charges in the event of cancellation. From time to time, the Company is party to or the target of lawsuits, claims, investigations and proceedings, including for personal injury, intellectual property, commercial, contract, and employment matters, which are handled and defended in the ordinary course of business. The Company accrues a contingent loss liability for such matters when it is probable that a liability has been incurred and the amount can be reasonably estimated. When a single amount cannot be reasonably estimated but the cost can be estimated within a range, the Company accrues the minimum amount. The Company expenses legal costs, including those expected to be incurred in connection with a loss contingency, as incurred. Concentrations The following table reflects significant customer concentrations as a percentage of total net revenue for the nine months ended July 3, 2021 and June 27, 2020:
| Nine months ended
| July 3, 2021 |  | June 27, 2020
ASE Technology Holding | 19.4 | % |  | *
* Represented less than 10% of total net revenue The following table reflects significant customer concentrations as a percentage of total accounts receivable as of July 3, 2021 and June 27, 2020:
| As of
| July 3, 2021 |  | June 27, 2020
Haoseng Industrial Co., Ltd (1) | 16.1 | % |  | 13.1 | %
Huatian Technology Group | 12.9 | % |  | *
Xinye (HK) Electronics. Co (1) | * |  | 14.9 | %
(1)Distributor of the Company's products. * Represented less than 10% of total accounts receivable

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