Title:
LED RECORDING READ
Document Type and Number:
Japanese Patent JPS63216391
Kind Code:
A
Abstract:
PURPOSE:To obtain a product which can increase an allowable current margin, has high reliability and is stable and a low price, by setting the rise angle of the bonding wire connected to an LED array chip from the surface of the LED array chip a specific value or below. CONSTITUTION:An LED array chip 2 is mounted and printing is carried out by using light emitted by a current supplied to the LED array chip 2 via a bonding wire 3 from an external circuit. In such an LED recording head, the rise angle A of the bonding wire 3 connected to the LED array chip 2 against the surface of the LED array chip is made nearly 45 degrees or below. For the means of setting the angle A 45 deg. or below, e.g., wedge bonding is used. This can avoid the adverse effects against the printing by the reflection of light due to the bonding wire 3 and the allowable margin of a current value is increased.
Inventors:
TAKADA NORIMASA
Application Number:
JP5062287A
Publication Date:
September 08, 1988
Filing Date:
March 04, 1987
Export Citation:
Assignee:
NEC CORP
International Classes:
B41J2/44; B41J2/45; B41J2/455; H01L33/08; H01L33/62; (IPC1-7): B41J3/21; H01L33/00
Domestic Patent References:
| JPS6129562A | 1986-02-10 | |||
| JPS61150388A | 1986-07-09 | |||
| JPS61206675A | 1986-09-12 |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)