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Segment Reporting and Geographic Information (Tables)
12 Months Ended
Dec. 31, 2021
Segment Reporting and Geographic Information  
Schedule of sales by end-market

For the year ended December 31,

    

    

2021

    

2020

    

2019

(in thousands)

Sales by end-market

Semiconductor

$

247,051

$

165,909

$

175,608

Compound Semiconductor

106,972

107,922

85,877

Data Storage

 

168,760

 

123,288

 

84,075

Scientific & Other

 

60,494

 

57,044

 

73,789

Total

$

583,277

$

454,163

$

419,349

Schedule of sales by geographic region

Net Sales to Unaffiliated Customers

Long-lived Tangible Assets

    

2021

    

2020

    

2019

    

2021

    

2020

    

2019

(in thousands)

United States

$

217,209

$

145,353

$

126,160

$

99,220

$

64,967

$

75,187

EMEA(1)

 

55,129

 

73,124

 

57,351

 

94

 

120

 

143

China

105,998

57,589

71,078

67

84

130

Rest of APAC

204,633

177,569

164,363

362

100

251

Rest of World

 

308

 

528

 

397

 

 

 

Total

$

583,277

$

454,163

$

419,349

$

99,743

$

65,271

$

75,711

(1)EMEA consists of Europe, the Middle East, and Africa