Concentration of Risk

6 Months Ended

Aug. 01, 2021

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)	August 1, 2021		July 26, 2020		August 1, 2021		July 26, 2020
Frontek Technology Corporation (and affiliates)	19	%	15	%	19	%	13	%
Trend-tek Technology Ltd. (and affiliates)	18	%	21	%	17	%	18	%
Arrow Electronics (and affiliates)	11	%	10	%	11	%	9	%
CEAC International Limited	11	%	12	%	10	%	12	%

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)	August 1, 2021		January 31, 2021
Frontek Technology Corporation (and affiliates)	20	%	10	%
Trend-tek Technology Ltd (and affiliates)	12	%	14	%
CEAC International Limited	11	%	14	%

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, Malaysia, the Philippines, South Korea and Thailand.