Gas injector with baffle

A gas injector comprising:

• a plenum body, wherein the plenum body comprises:
• a recess;
• a protrusion extending laterally away from the plenum body, wherein the protrusion comprises:
• a divider disposed across an interior volume of the plenum body separating the interior volume into a first volume adjacent to the recess and a second volume extending into the protrusion, wherein the divider has at least one hole that provides fluid communication between the first volume and the second volume;
• a side wall and a bottom wall orthogonal to the side wall;
• and
• an opening formed through the side wall and in fluid communication with the second volume.

A gas injector comprising:

• a plenum body, wherein the body comprises:
• a top surface and a bottom surface opposite the top surface;
• a recess formed into the top surface;
• and
• a protrusion extending laterally away from the bottom surface of the plenum body, wherein the protrusion comprises:
• a divider disposed across an interior volume of the plenum body separating the interior volume into a first volume adjacent to the recess and a second volume extending into the protrusion, wherein the divider has at least one hole that provide fluid communication between the first volume and the second volume;
• a side wall;
• and
• an opening formed through the side wall and in fluid communication with the second volume.