A pillow packaging bag, a pillow type packaging body, a heat seal bar for pillow packaging machine, and a pillow packaging machine. The housing and the rotor assembly may be coupled together by a tilt assembly that defines a fixed precession axis for the rotor assembly and allows the rotor assembly to be tilted relative to the fixed precession axis. The computation engine may include an array of flash memory cells arranged in pairs of rows, where flash memory cells in any one row have sources coupled to a common row line and a plurality of conductance mode neurons each having first and second inputs coupled to first and second row lines forming a respective pair of rows. The first and the second sealants are respectively used for sealing at least one of the LED chips placed in at least one of the cavities through which the first or the second emission exits.