The present invention relates to a method of forming a small gap using CMP and a method for manufacturing a lateral FED. The end play restriction wedge includes a female-wedge housing and a male wedge. The invention also provides pharmaceutical compositions containing such compounds, processes and intermediates for preparing such compounds and methods of using such compounds to treat pulmonary disorders. The optical transceiver may also include a crossing point control circuit configured to apply distortion to the Tx data signal, the distortion to increase the crossing point level. The head-protecting airbag device can firmly mount the airbag cover to and easily dismount the airbag cover from the vehicle body. As the contaminant and reagent react, the ammonium or amine becomes irreversibly absorbed to the liquid acid reagent and multilobal fiber.