Diode for a printable composition

A diode comprising:

• a light emitting or absorbing region having a mesa region, the mesa region having a height of 0.5 to 2 microns and a diameter between about 6 to 22 microns;
• a plurality of first terminals spaced apart and coupled to the light emitting region on a first side and peripherally to the mesa region, each first terminal of the plurality of first terminals having a height between about 0.5 to 2 microns;
• and
• one second terminal coupled centrally to the mesa region of the light emitting region on the first side, the second terminal having a height between 1 to 8 microns;
• wherein the diode has a lateral dimension between about 10 to 50 microns and a height between about 5 to 25 microns.

A diode comprising:

• a light emitting or absorbing region having a diameter between about 20 and 30 microns and a height between 2.5 to 7 microns;
• a plurality of first terminals spaced apart and coupled to the light emitting region peripherally on a first side, each first terminal having a height between about 0.5 to 2 microns;
• and
• one second terminal coupled centrally to a mesa region of the light emitting region on the first side, the second terminal having a height between 3 to 6 microns;
• wherein the diode is substantially hexagonal laterally, has a diameter between about 20 to 30 microns and a height between about 5 to 15 microns, wherein each lateral side of the diode is less than about 10 microns in height, has a substantially sigmoidal curvature and terminates in a curved point.

A diode comprising:

• a light emitting or absorbing region having a mesa region, the mesa region having a height of 0.5 to 2 microns and a diameter between about 6 to 22 microns;
• a plurality of first terminals spaced apart and coupled to the light emitting region on a first side and peripherally to the mesa region, each first terminal of the plurality of first terminals having a height between about 0.5 to 2 microns;
• and
• one second terminal coupled centrally to the mesa region of the light emitting region on the first side, the second terminal having a height between 1 to 8 microns, the second metal terminal having one contact, and the one contact of the second terminal spaced apart from contacts of the plurality of first metal terminals by about 1 to 7 microns in height;
• wherein the diode is substantially hexagonal laterally, has a diameter between about 10 to 50 microns and a height between about 5 to 25 microns, wherein each lateral side of the diode is less than about 15 microns in height, has a substantially sigmoidal curvature and terminates in a curved point.