According to Bloomberg’s report, Apple has tightened quality control standards for iPhone 5 production, in order to decrease the number of smartphones that are delivered with scratches on its aluminum shell right out of the box. But the initiative seems to have slowed the production of the new Apple’s smartphone.
“Stricter benchmarks have hampered production of the iPhone 5's anodized aluminum housings, forcing Foxconn's Hon Hai Precision Industry Co. to idle factories”.