Concentration of Risk

12 Months Ended

Jan. 30, 2022

The following significant customers accounted for at least 10% of the Company's net sales in one or more of the periods indicated:


	Fiscal Year Ended
(percentage of net sales)	January 30, 2022		January 31, 2021		January 26, 2020
Frontek Technology Corporation (and affiliates)	18	%	16	%	11	%
Trend-tek Technology Ltd. (and affiliates)	17	%	17	%	13	%

CEAC International Ltd. (and affiliates)	11	%	11	%	8	%
Arrow Electronics (and affiliates)	10	%	9	%	9	%
Premier Technical Sales Korea, Inc. (and affiliates) (1)	6	%	6	%	7	%
Samsung Electronics (and affiliates)	2	%	2	%	4	%

(1) Premier is a distributor with a concentration of sales to Samsung Electronics (and affiliates). The above percentages represent the Company's estimate of the sales activity related to Samsung Electronics (and affiliates) that is passing through this distributor.

The following table shows the customers that have an outstanding receivable balance that represents at least 10% of the Company's total net receivables as of one or more of the dates indicated:


(percentage of net receivables)	January 30, 2022		January 31, 2021

Frontek Technology Corporation (and affiliates)	17	%	10	%
CEAC International Ltd. (and affiliates)	10	%	14	%
Trend-tek Technology Ltd. (and affiliates)	7	%	14	%

For fiscal years 2022, 2021 and 2020, authorized distributors accounted for approximately 87%, 82% and 72%, respectively, of the Company’s net sales. Generally, the Company does not have long-term contracts with its distributors and most can terminate their agreement with little or no notice. For fiscal year 2022, the Company's largest distributors were based in Asia.

Outside Subcontractors and Suppliers

The Company relies on a limited number of third-party subcontractors and suppliers for the production of silicon wafers, packaging and certain other tasks. Disruption or termination of supply sources or subcontractors, including due to the COVID-19 pandemic or natural disasters such as an earthquake or other causes, have delayed and could in the future delay shipments and could have a material adverse effect on the Company. Although there are generally alternate sources for these materials and services, qualification of the alternate sources could cause delays sufficient to have a material adverse effect on the Company. A significant amount of the Company’s third-party subcontractors and suppliers, including third-party foundries that supply silicon wafers, are located in the U.S., Taiwan and China. A significant amount of the Company’s assembly and test operations are conducted by third-party contractors in China, Taiwan and Malaysia.