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Vi Systems Gmbh patents


Recent patent applications related to Vi Systems Gmbh. Vi Systems Gmbh is listed as an Agent/Assignee. Note: Vi Systems Gmbh may have other listings under different names/spellings. We're not affiliated with Vi Systems Gmbh, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "V" | Vi Systems Gmbh-related inventors


Low capacitance optoelectronic device

An optoelectronic semiconductor device is disclosed wherein the device is a vertical-cavity surface-emitting laser or a photodiode containing a section, the top part of which is electrically isolated from the rest of the device. The electric isolation can be realized by etching a set of holes and selective oxidation of algaas layer or layers such that the oxide forms a continuous layer or layers everywhere beneath the top surface of this section. ... Vi Systems Gmbh

Reliable high-speed oxide-confined vertical-cavity surface-emitting laser

An oxide-confined vertical cavity surface emitting laser including a distributed bragg reflector (dbr) wherein the layers of the (dbr) includes a multi-section layer consisting of a first section having a moderately high aluminum composition, an second section which is an insertion having a low aluminum composition, and a third section which is an oxide-confined aperture formed by partial oxidation of a layer having a high aluminum composition (95% and above). A difference in aluminum composition between a high value in the aperture layer and a moderately high value in the first section prevents non-desirable oxidation of the first section from the mesa side while the aperture layer is being oxidized. ... Vi Systems Gmbh








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