By Marcus Leach

The aftermath of the earthquake in Japan is throwing up continued disruptions with the latest company to be affected being Apple as they suffer logistical problems with components for their new iPad 2.

With many key parts for Apple's iPad 2 coming from Japan, including a hard-to-replace electronic compass, there are growing concerns over supply shortages.

The IHS iSuppli teardown analysis of the iPad 2 so far has been able to identify five parts sourced from Japanese suppliers: NAND flash from Toshiba Corp., dynamic random access memory (DRAM) made by Elpida Memory Inc., an electronic compass from AKM Semiconductor, the touch screen overlay glass likely from Asahi Glass Co. and the system battery from Apple Japan Inc.

There potentially are other components from Japan in the iPad 2, however, the teardown analysis process cannot always identify all components’ countries of origin.

While some of these suppliers reported that their facilities were undamaged, delivery of components from all of these companies is likely to be impacted at least to some degree by logistical issues now plaguing most Japanese industries in the quake zone. Suppliers are expected to encounter difficulties in getting raw materials supplied and distributed as well as in shipping out products. They also are facing difficulties with employee absences because of problems with the transportation system. The various challenges are being compounded by interruptions in the electricity supply, which can have a major impact on delicate processes, such as semiconductor lithography.

Furthermore, semiconductor facilities in Japan that had suspended manufacturing activities following the quake cannot truly commence full production again until the aftershocks cease.

“Earthquakes ranging from 4 to 7 on the Richter scale will make it impossible to really restart these fabs until the earthquakes stop happening with such frequency,” said Dale Ford of IHS. “Every time a quake tops 5, the equipment automatically shuts down.”

These issues may come at a time when Apple is rushing to ramp up iPad 2 production to meet stronger-than expected demand for the device. The company this week announced that iPad shipments from the Apple Store have been delayed by one week from previous lead times because of the surge in demand.