Title:
表面実装型ビーム放射および/または受信素子
Document Type and Number:
Japanese Patent JP3682230
Kind Code:
B2
Abstract:
A housing accommodating a semiconductor chip is set out. The housing and chip may be used for sending and/or receiving radiation. Popular applications of the housing may be in light emitting diodes. The housing includes a conductor strip that is punched into two electrically isolated portions. The housing further includes a cavity extending inwards from the top of the housing. The conductor portions include respective areas that are exposed at the bottom of the cavity. The semiconductor chip is bonded to one of the exposed areas and a wire bonds the chip to the second exposed area. The conductor portions also terminate in exposed electrodes, which allow for electrical connection of the chip with external devices. A window is formed in the cavity and the walls of the housing that form the cavity may be made of a reflective material. The electrodes remain unexposed to the window but for any residual areas about the chip and bonding wire within the first and second exposed areas. By minimizing the area of the conductor exposed to the window, delamination brought about by the different thermal expansions of the window and conductor are minimized and/or eliminated. Likewise, with a reflective housing covering the base of the cavity that accommodates the window, internal radiation reflection is increased over that which was achieved with an exposed conductor.
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Inventors:
Gunter Weiter
Herbert Brunner
Herbert Brunner
Application Number:
JP2000558566A
Publication Date:
August 10, 2005
Filing Date:
June 30, 1999
Export Citation:
Assignee:
Osram Opto Semiconductors GmbH
International Classes:
H01L31/02; H01L31/0203; H01L33/48; H01L33/62; (IPC1-7): H01L33/00; H01L31/02
Domestic Patent References:
| JP62224986A | ||||
| JP4025260U | ||||
| JP62224986A | ||||
| JP4025260U | ||||
| JP62224986A | ||||
| JP4025260U |
Foreign References:
| WO1997012404A1 | ||||
| WO1998012757A1 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel