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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS
 12 Months Ended
Sep. 28, 2024
Commitments and Contingencies Disclosure [Abstract]  
COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS 16. 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 related labor costs expected to be incurred to correct product failures during the warranty period.
The following table reflects the reserve for product warranty activity for fiscal 2024, 2023 and 2022: 
 Fiscal
(in thousands)202420232022
Reserve for warranty, beginning of period$10,457 $13,443 $16,961 
Provision for warranty12,824 12,850 12,907 
Utilization of reserve(13,370)(15,836)(16,425)
Reserve for warranty, end of period$9,911 $10,457 $13,443 
Other Commitments and Contingencies
The following table reflects the obligations not reflected on the Consolidated Balance Sheets as of September 28, 2024:
  Payments due by fiscal year
(in thousands)Total2025202620272028Thereafter
Inventory purchase obligation (1)
$126,078 $126,078 $— $— $— $— 

(1) The Company orders inventory components in the normal course of its business. A portion of these orders are non-cancelable and a portion may have 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.
Unfunded Capital Commitments
As of September 28, 2024, the Company also has an obligation to fund uncalled capital commitments of approximately $6.6 million, as and when required, in relation to its investment in a private equity fund.
Concentrations
There were no customers with sales representing more than 10% of our net revenue in fiscal 2024, 2023 and 2022.
The following table reflects the significant customer concentrations as a percentage of total accounts receivable as of September 28, 2024 and September 30, 2023:
 As of
 September 28, 2024September 30, 2023
Tianshui Huatian Technology Co., Ltd.17.2 %*
Forehope Semiconductor Group15.7 %*
* Represents less than 10% of total accounts receivables