Product category: Optoelectronic Sensors, Switches and Receivers
News Release from: Oki Electric | Subject: W-CSP technology
Edited by the Electronicstalk Editorial Team on 9 November 2007
Semiconductor technology cuts camera size
Oki Electric's W-CSP technology allows sensor and camera module manufacturers to obtain camera modules that are half the size of conventional modules
Oki Electric has started a contract assembly service for wafer-level chip-sized package (W-CSP) semiconductors using through-hole technology. Sensor and camera module manufacturers can now obtain camera modules that are half the size of conventional modules. In September, OKI established a volume production line for through-whole technology based W-CSP assembly at its production site in Tokyo and started operation in October.
This article was originally published on Electronicstalk on 9 November 2007 at 8.00am (UK)
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'OKI is currently one of the industry's largest-scale manufacturers of W-CSP technology, packaging LSIs of a size equivalent to the semiconductor chip itself'.
'Based on the through-hole W-CSP technology, manufacturers can make smaller camera modules, responding to trends such as the steadily shrinking size of mobile equipment', said Takaki Yamada, President of Silicon Microdevice at Oki Electric Industry.
'We plan to increase the production level to 10,000 wafers per month within the fiscal year ending March 2009 and are considering increasing up to 20,000 wafers per month by the fiscal year ending March 2010, taking the expected demand increase into consideration'.
In order to miniaturise a camera module, it is necessary to miniaturise the image sensor in the camera module.
OKI's new W-CSP technology includes creating a through-hole in the silicon substrate such as an image sensor and putting an electrode through the hole.
By using this technology on the image sensor, users can eliminate wire bonding for camera modules and thus, reduce the size.
OKI also uses a low-profile cover glass on the image sensor, enabling manufacturers to make a module thinner than conventional ones.
OKI is set to launch a contract manufacturing service for making ultra small camera modules as part of OKI's e-functional module business.
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