  Abstract The magneto-optical trap (MOT) is an essential tool for collecting
and preparing cold atoms with a wide range of applications. We demonstrate a
planar-integrated MOT by combining an optical grating chip with a magnetic coil
chip. The flat grating chip simplifies the conventional six-beam configuration
down to a single laser beam; the flat coil chip replaces the conventional
anti-Helmholtz coils of a cylindrical geometry. We trap 10^{4} cold
^{87}\text{Rb} atoms in the planar-integrated MOT, at a point 3-9 mm above the
chip surface. This novel configuration effectively reduces the volume, weight,
and complexity of the MOT, bringing benefits to applications including
gravimeter, clock and quantum memory devices.
