摘要:
A photon source filter and primary collimator arrangement wherein the source and filter are within the boundaries of the primary collimator and together form a unitary assembly which may be fixed relative to the impinging electron beam or may be removable from the same. The assembly may consist of low and high atomic number elements or compounds.
摘要:
A necktie hanger, formed of a single continuous length of wire, has an attachment hook and a pair of downwardly extending, coplanar spaced limbs with a crossarm extending between the limbs. The crossarm is of a length commensurate with the width of a lateral midportion of a necktie to be draped over the crossarm and suspended from the hanger. An eye located between the hook and the limbs is provided for tethering the hanger to a suitable anchor.
摘要:
A compact, high-differential, low-loss, Venturi utilizing a curved upstream approach which is modified to provide a protrusion extending into the venturi in the convergent section thereof immediately upstream of the low-pressure tap. The protrusion extends into said venturi less than the Boundary layer thickness of the fluid flowing in the device thereby creating and constantly maintaining a turbulent action of the boundary layer in the localized area of the low-pressure tap, regardless of flow rate of flow conditions and a recovery section tangential or in continuous surface relation thereto.
摘要:
Methods of forming resist features, resist patterns, and arrays of aligned, elongate resist features are disclosed. The methods include addition of a compound, e.g., an acid or a base, to at least a lower surface of a resist to alter acidity of at least a segment of one of an exposed, acidic resist region and an unexposed, basic resist region. The alteration, e.g., increase or decrease, in the acidity shifts an acid-base equilibrium to either encourage or discourage development of the segment. Such “chemical proximity correction” techniques may be used to enhance the acidity of an exposed, acidic resist segment, to enhance the basicity of an unexposed, basic resist segment, or to effectively convert an exposed, acidic resist segment to an unexposed, basic resist segment or vice versa. Thus, unwanted line breaks, line merges, or misalignments may be avoided.
摘要:
Methods of forming resist features, resist patterns, and arrays of aligned, elongate resist features are disclosed. The methods include addition of a compound, e.g., an acid or a base, to at least a lower surface of a resist to alter acidity of at least a segment of one of an exposed, acidic resist region and an unexposed, basic resist region. The alteration, e.g., increase or decrease, in the acidity shifts an acid-base equilibrium to either encourage or discourage development of the segment. Such “chemical proximity correction” techniques may be used to enhance the acidity of an exposed, acidic resist segment, to enhance the basicity of an unexposed, basic resist segment, or to effectively convert an exposed, acidic resist segment to an unexposed, basic resist segment or vice versa. Thus, unwanted line breaks, line merges, or misalignments may be avoided.
摘要:
A toothbrush is disclosed. The toothbrush includes a head; a base member supported by a neck; a support member having a plurality of holes therein; a resilient cushion member disposed, at least in part, between the base member and the support member, the cushion member being fixed to the support member; at least one center bristle tuft extending from the support member; and two or more outer bristle tufts located at least partially around the at least one center bristle tuft. The center bristle tuft has a first shaped cross section and the outer bristle tufts have a second shaped cross section. The first shaped cross section is different from the second shaped cross section. Applying a force to the center bristle tuft and/or the outer bristle tufts causes the center bristle tuft and/or the outer bristle tufts to deflect into the resilient cushion member.
摘要:
A target system having a base, a stationary member inclined from the base and having a cap, a rotating tube having a cap and positioned over the stationary tube, a bearing between the caps of the stationary member and the rotating tube to permit substantially free rotation of the rotating tube, and a plurality of target sides secured to the rotating tube, with impact of a fired round onto one of the target sides initiating movement of the rotating tube relative to the stationary member.
摘要:
A target system having a base, a stationary member inclined from the base and having a cap, a rotating tube having a cap and positioned over the stationary tube, a bearing between the caps of the stationary member and the rotating tube to permit substantially free rotation of the rotating tube, and a plurality of target sides secured to the rotating tube, with impact of a fired round onto one of the target sides initiating movement of the rotating tube relative to the stationary member.
摘要:
A method of processing a semiconductor substrate in forming scribe line alignment marks includes forming pitch multiplied non-circuitry features within scribe line area of a semiconductor substrate. Individual of the features, in cross-section, have a maximum width which is less than a minimum photolithographic feature dimension used in lithographically patterning the substrate. Photoresist is deposited over the features. Such is patterned to form photoresist blocks that are individually received between a respective pair of the features in the cross-section. Individual of the features of the respective pairs have a laterally innermost sidewall in the cross-section. Individual of the photoresist blocks have an opposing pair of first pattern edges in the cross-section that are spaced laterally inward of the laterally innermost sidewalls of the respective pair of the features. Individual of the photoresist blocks have an opposing pair of second pattern edges in the cross-section that self-align laterally outward of the first pattern edges to the laterally innermost sidewalls of the features during the patterning.
摘要:
Toothbrush heads, e.g., for power toothbrushes, are provided. An embodiment of the toothbrush heads include a support structure, a plurality of upstanding accurate members extending upward from a surface of the support structure forming an open center area, a second cleaning element disposed within the open center area and plurality of bristle tufts extending from the support structure and at least partially surrounding at least one of the plurality of arcuate segments