Foxconn on iPhone 5: It's Hard to Build

Foxconn, the company that builds the iPhone 5 for Apple, is blaming product delays on the complexity of the assembly process -- or in other words, it's hard to build.

Foxconn blames iPhone 5 shortages on assembly difficultyFoxconn blames iPhone 5 shortages on assembly difficulty

"The iPhone 5 is the most difficult device that Foxconn has ever assembled. To make it light and thin, the design is very complicated," an unnamed company official told the Wall Street Journal.

Foxconn has already been dealing with headaches related to the iPhone 5. Earlier in October, up to 4,000 employees stopped production to protest what they saw as unrealistic quality control expectations from Foxconn and Apple. Foxconn, however, said that there wasn't a strike and that only a handfull of employees were involved in a minor disagreement with management.

Workers were reportedly given stricter quality control guidelines after complaints of customers receiving scratched and dented iPhones surfaced. Employees claimed they hadn't received proper training on how to comply with the new guidelines and weren't paid for the extra time needed to meet those standards.

Despite the headaches associated with building Apple's latest iPhone model, Foxconn is making improvements.

"It takes time to learn how to make this new device," the WSJ contact said. "Practice makes perfect. Our productivity has been improving day by day."