摘要:
An optoelectronic semiconductor chip comprises a growth substrate with a structured growth area (2) having a multiplicity of elevations (4) and depressions (3), and an active layer sequence (5) applied to the growth area (2).
摘要:
The invention relates to a method for the thermal treatment of a surface layer (4) on a semiconductor substrate (5). Laser pulses (2) generated by a laser (1) are emitted onto the surface layer (4). This method can be used to produce, in particular, ohmic contacts to III-V compound semiconductors.
摘要:
Disclosed are a method of fabricating a quasi-substrate wafer (17) with a subcarrier wafer (4) and a growth layer (120), and a semiconductor body fabricated using such a quasi-substrate wafer (17). In the method of fabricating a quasi-substrate wafer (17), a growth substrate wafer (1) is fabricated that is provided with a separation zone (2) and comprises the desired material of the growth layer (120). The growth substrate wafer (1) is provided with a stress that counteracts a stress generated by the formation of the separation zone, and/or the stress generated by the formation of the separation zone is distributed, by structuring a first main face (101) of the growth substrate wafer (1) and/or the separation zone (2), to a plurality of subregions along the first main face (101). The growth substrate wafer (1) with separation zone (2) exhibits no or only slight bowing.
摘要:
In a process for producing a semiconductor chip, a functional semiconductor layer sequence (2) is grown epitaxially on a growth substrate (1). Then, a separating zone (4), which lies parallel to a main surface (8) of the growth substrate (1), is formed in the growth substrate (1) by ion implantation, the ion implantation taking place through the functional semiconductor layer sequence (2). Then, a handle substrate (6) is applied to the functional semiconductor layer sequence (2), and a part of the growth substrate (1) which is remote from the handle substrate (6) as seen from the separating zone (4), is detached along the separating zone (4).
摘要:
An ohmic contact structure having a metallization (14) arranged on a semiconductor material (10), a contact layer being formed in the semiconductor material (10), which contact layer has a first partial region adjoining the metallization (14) and a second partial region (18) arranged downstream of the first partial region. The contact layer is doped in such a way that the doping concentration (N2) in the first partial region (12) is greater than the doping concentration (N1) in the second partial region (18).