Taking the lid of off the Apple iPhone reveals some interesting semiconductor design wins. Infineon Technologies, National Semiconductor and Balda join Samsung Electronics on the bill of materials for the iPhone, according to a teardown analysis by iSuppli.

UK-based winners include: Wolfson, which continues to maintain its Apple iPod design win for the audio codec and CSR, which supplies the iPhone Bluetooth silicon costing $1.90.

Marvell is contributing a Wi-Fi baseband chip costing $6.00.

Infineon, scored a major success in the iPhone, contributing the digital baseband, radio-frequency transceiver and power-management devices. This represents much of the core comms capability for the iPhone.

"Altogether, Infineon's silicon content accounted for $15.25 worth of the iPhone's BoM, representing 6.1 percent of the 8Gbyte version of the product's total cost," said iSuppli.

A complete version of this report, including a table presenting key component suppliers.

National Semiconductor scored a design win for its serial display interface device, its first part in an iPod. TPK Solutions (Balda) gets the touch screen module, which costs an estimated $27, representing 10.8 per cent of the 8Gbyte model's cost. Epson supplies the display.

"iSuppli's teardown, conducted this weekend, determined that the 8Gbyte version of the iPhone has a total hardware BoM and manufacturing cost of $265.83, generating a margin in excess of 55 percent on each 8Gbyte iPhone sold at the $599.00 retail price," said Andrew Rassweiler, principal analyst for iSuppli.

In January, before iPhones were available for physical teardown, iSuppli estimated a $264.85 hardware BoM and manufacturing cost for the 8Gbyte iPhone. These costs do not include royalties and logistics expenses.