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COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS
 3 Months Ended
Dec. 28, 2024
Commitments and Contingencies Disclosure [Abstract]  
COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS 15. 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 in correcting manufacturing defects during the warranty period.
The following table reflects the reserve for warranty activity for the three months ended December 28, 2024 and December 30, 2023: 
 Three months ended
(in thousands)December 28, 2024December 30, 2023
Reserve for warranty, beginning of period$9,911 $10,457 
Provision for warranty2,529 2,936 
Utilization of reserve(3,014)(3,226)
Reserve for warranty, end of period$9,426 $10,167 
Other Commitments and Contingencies
The following table reflects obligations not reflected on the Consolidated Condensed Balance Sheets as of December 28, 2024:
  Payments due by fiscal year
(in thousands)Total20252026202720282029Thereafter
Inventory purchase obligation (1)
$137,052 $47,166 $89,886 $— $— $— $— 
(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 December 28, 2024, the Company also has an obligation to fund uncalled capital commitments of approximately $6.2 million, as and when required, in relation to its investment in a private equity fund.
Concentrations
The following table reflects significant customer concentrations as a percentage of net revenue for the three months ended December 28, 2024 and December 30, 2023:
Three months ended
December 28, 2024December 30, 2023
First Technology China Ltd.(1)
11.8 %*
Tianshui Huatian Technology Co., Ltd.10.9 %*
Matfron (Shanghai) Semiconductor Technology Co.,Ltd.
*10.6 %
* Represents less than 10% of total net revenue
(1) Distributor of the Company’s products
The following table reflects significant customer concentrations as a percentage of total accounts receivable as of December 28, 2024 and December 30, 2023:
 As of
December 28, 2024December 30, 2023
Tianshui Huatian Technology Co., Ltd.23.4 %*
Forehope Electronic (Ningbo) Co., Ltd.11.8 %10.7 %
* Represents less than 10% of total accounts receivable