Concentration of Risk

6 Months Ended

Jul. 31, 2022

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


	Three Months Ended				Six Months Ended
(percentage of net sales)	July 31, 2022		August 1, 2021		July 31, 2022		August 1, 2021
Trend-tek Technology Ltd. (and affiliates)	15	%	18	%	16	%	17	%
CEAC International Limited	14	%	11	%	13	%	10	%
Frontek Technology Corporation (and affiliates)	12	%	19	%	13	%	19	%
Arrow Electronics (and affiliates)	10	%	11	%	8	%	11	%

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


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


CEAC International Limited	14	%	10	%
Frontek Technology Corporation (and affiliates)	13	%	17	%

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.