Company: AMKR
Filing Date: 2025-02-21
Form Type: 10-K
Source: 0001047127-25-000030
Chunk: 7

Company: AMKOR TECHNOLOGY, INC.
Filing Date: 2025-02-21
Form: 10-K
Item: Item 1
Chunk 7
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In general, the semiconductor manufacturing process consists of IC design, wafer fabrication, wafer probe, packaging and final test.  The packaging and test services we provide occur subsequent to wafer fabrication, and the wafers that we receive from our customers are generally consigned to us.

Advanced Products and Mainstream Products

We offer a broad range of advanced and mainstream packaging and test services to our customers.  We refer to our flip chip, wafer-level processing and related test services as “Advanced Products” and to our wirebond packaging, power device packaging and related test services as “Mainstream Products.”  The following table sets forth, for the periods indicated, net sales for Advanced Products and Mainstream Products and the percentage of total net sales for each service offering.

For the Year Ended December 31, 202420232022(In millions, except percentage of net sales)Advanced Products$5,175 81.9 %$5,033 77.4 %$5,368 75.7 %Mainstream Products1,143 18.1 %1,470 22.6 %1,724 24.3 %Total net sales$6,318 100.0 %$6,503 100.0 %$7,092 100.0 %

Advanced Products

Our Advanced Products include flip chip chip scale packages (“FC CSP”), wafer-level packages and flip chip ball grid array (“FCBGA”) packages.  These package families use flip chip interconnect technology so that the die can be connected to a substrate package carrier or, in the case of wafer-level chip scale packages, directly to a printed circuit board.

FC CSP Products:  FC CSP packages are small form factor packages where the substrate size is not much larger than the die itself.  FC CSP can be a single die or multi die format.  The size advantage provided by CSP technologies has made FC CSP an attractive choice for a wide variety of applications that require very small form factors, such as smartphones, tablets and other mobile consumer electronic devices.

Flip chip stacked chip scale packages (“FC SCSP”) stack a second die on top of the original flip-chip die.  The top die is typically a memory device, and wirebond interconnects are used to attach the top die to the substrate.  FC SCSP is frequently used to stack memory on top of digital baseband and applications processors for use in mobile devices.

We continue to drive thinner package solutions for