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Segment and Geographic information
 12 Months Ended
Jun. 30, 2022
Segment Reporting [Abstract]  
Segment and Geographic Information Segment and Geographic Information
The Company is organized as, and operates in, one operating segment: the design, development and supply of power semiconductor products for computing, consumer electronics, communication and industrial applications. The chief operating decision-maker is the Chief Executive Officer. The financial information presented to the Company's Chief Executive Officer is on a consolidated basis, accompanied by information about revenue by customer and geographic region, for purposes of evaluating financial performance and allocating resources. The Company has one business segment, and there are no segment managers who are held accountable for operations, operating results and plans for products or components below the consolidated unit level. Accordingly, the Company reports as a single operating segment.

The Company sells its products primarily to distributors in the Asia Pacific region, who in turn sell these products to end customers. Because the Company's distributors sell their products to end customers which may have a global presence, revenue by geographical location is not necessarily representative of the geographical distribution of sales to end user markets.
The revenue by geographical location in the following tables is based on the country or region in which the products were shipped to: 
 Year Ended June 30, 
 202220212020
(in thousands)
Hong Kong$630,238 $537,553 $390,478 
China120,978 107,325 64,058 
South Korea11,802 5,497 3,303 
United States12,470 5,492 4,465 
Other countries2,064 1,035 2,605 
 $777,552 $656,902 $464,909 
During the fiscal year ended June 30, 2022, the Company corrected an immaterial error to reduce revenues in Hong Kong by $0.5 million, and to increase the revenues in China by $0.5 million for the fiscal year ended June 30, 2021.
The following is a summary of revenue by product type:
 Year Ended June 30, 
 202220212020
 (in thousands)
Power discrete$545,135 $482,718 $391,941 
Power IC220,882 161,726 66,360 
Packaging and testing services11,535 12,458 6,608 
 $777,552 $656,902 $464,909 

Long-lived assets, net consisting of property, plant and equipment and land use rights, net, as well as operating lease right-of-use assets, net by geographical area are as follows:
 June 30,
 20222021
(in thousands)
China$105,326 $350,387 
United States232,731 118,756 
Other countries4,283 2,494 
 $342,340 $471,637