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SIGNIFICANT CUSTOMER INFORMATION (Tables)
6 Months Ended
Jun. 30, 2021
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]  
Concentration Risk [Line Items]  
Schedules of significant customer information

Three Months Ended June 30, 

    

2021

2020

Applied Materials, Inc.

$

73,833

    

20.4

%

  

$

64,408

    

19.0

%

Lam Research

$

36,317

 

10.1

%

*

 

*

%

Six Months Ended June 30, 

    

2021

2020

Applied Materials, Inc.

$

141,621

    

19.9

%

  

$

115,389

    

17.6

%

Lam Research

 

*

 

*

%

*

 

*

%

Accounts Receivable [Member] | Credit Concentration Risk [Member]  
Concentration Risk [Line Items]  
Schedules of significant customer information

    

June 30,

  

December 31,

2021

2020

Applied Materials, Inc.

$

41,397

    

17.0

%

  

$

33,402

    

14.2

%

Nidec Motor Corporation

*

*

%

  

$

24,344

10.4

%

* Customer’s balance was less than 10% of total.