Abstract: A vapor generator for generating vapors from a solid fuel is described. The vapor generator may comprise a fuel chamber for containing the fuel, an electrical heating element, associated controls, and a battery. The fuel is heated by ambient air drawn past the heating element, and is subsequently conducted into the fuel chamber. A screen may interpose a barrier between the fuel and the heating element, so that fuel is heated only convectively by air and not by direct contact with the heating element. The fuel chamber is modularly detachable from the heating element. Modules including the heating element and the fuel chamber may be joined by a ball and socket arrangement, thereby enabling ready assembly into a unitized assembly, and disassembled to enable the heating elements and related components to be utilized with a pre-existing smoking pipe or cigarette.

Abstract: A vapor generator for generating vapors from a solid fuel is described. The vapor generator may comprise a fuel chamber for containing the fuel, an electrical heating element, associated controls, and a battery. The fuel is heated by ambient air drawn past the heating element, and is subsequently conducted into the fuel chamber. A screen may interpose a barrier between the fuel and the heating element, so that fuel is heated only convectively by air and not by direct contact with the heating element. The fuel chamber is modularly detachable from the heating element. Modules including the heating element and the fuel chamber may be joined by a ball and socket arrangement, thereby enabling ready assembly into a unitized assembly, and disassembled to enable the heating elements and related components to be utilized with a pre-existing smoking pipe or cigarette.

Abstract: A method for manufacturing a magnetic write head for perpendicular magnetic data recording. The method allows an upper write coil to be formed directly on a conformally deposited layer of non-magnetic material such as alumina which has been deposited over a magnetic shaping layer and write pole. The method allows the write coil to be constructed without the need for the deposition of a thick alumina fill layer and subsequent chemical mechanical polishing. This, therefore, avoids the necessity of such a chemical mechanical polishing step.

Abstract: A method for manufacturing a magnetic write head for perpendicular magnetic recording having a write pole with a very narrow track width and well controlled critical dimensions. The write pole is formed by depositing an electrically conductive seed layer over a substrate, and then depositing a photo resist layer over the seed layer. The photo resist layer is photolithographically exposed and developed to form an opening or trench in the photoreist layer, the opening defining the pattern of the write pole. A magnetic material is then plated into the opening in the photoresist layer. The photo resist layer can then be removed by a chemical lift off, and portions of the seed layer that are not covered by the write pole can be removed by ion milling.

Abstract: A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leading edge. The write head may or may not include a magnetic trailing shield, and if a trailing shield is included it is separated from the trailing edge by a non-magnetic write gap layer. The concave trailing edge improves magnetic performance such as by improving the transition curvature. A method for constructing the write head includes forming a magnetic write pole by forming a mask structure over a deposited write pole material, the mask structure having an alumina hard mask and an image transfer layer such as DURAMIDE®. An alumina fill layer is then deposited and a chemical mechanical polish is performed to open up the image transfer layer.

Abstract: A method for manufacturing a magnetic write head for perpendicular magnetic data recording. The method allows an upper write coil to be formed directly on a conformally deposited layer of non-magnetic material such as alumina which has been deposited over a magnetic shaping layer and write pole. The method allows the write coil to be constructed without the need for the deposition of a thick alumina fill layer and subsequent chemical mechanical polishing. This, therefore, avoids the necessity of such a chemical mechanical polishing step.

Abstract: A method for manufacturing a magnetic write head for perpendicular magnetic recording having a write pole with a very narrow track width and well controlled critical dimensions. The write pole is formed by depositing an electrically conductive seed layer over a substrate, and then depositing a photo resist layer over the seed layer. The photo resist layer is photolithographically exposed and developed to form an opening or trench in the photoreist layer, the opening defining the pattern of the write pole. A magnetic material is then plated into the opening in the photoresist layer. The photo resist layer can then be removed by a chemical lift off, and portions of the seed layer that are not covered by the write pole can be removed by ion milling.