Abstract: The Bad News concealment Holster allows a licensed person to use a newspaper in a plastic delivery bag to conceal a handgun for legal self-defense. The handgun will be secured in nylon sleeve holster, by a retention strap with a pull tab release using hook & loop to attach the strap and to secure the holster to the metallic belt. The metallic belt will be placed around a section of the newspaper, for example, the sports section, this is then slid back into the remaining newspaper that is in a delivery bag, and adjusted by the user to allow access to the firearm through the open end of the paper and bag. By using a newspaper to discreetly conceal a legal handgun for licensed self defense, a persons firearm may be accessable but not in plain view as required by many states concealed carry laws. For lagal carry in a vehicle, briefcase etc. the Bad News Concealment Holster will give a legal, licensed person a different and unique option for concealed carry.

Abstract: A package is used for the packaging of an anchor element together with a suture thread which is threaded on the latter. It is proposed to provide the package with an outer casing hermetically closed to the outside, the casing container holder which receives said anchor element and which has a seat for the suture thread already wound on the anchor element.

Abstract: An assembled tool-storing frame, including a frame and multi setting members, the arranged setting members are pivotally mounted in the frame for inserting one end of a tool, and the setting member is engaged by the frame, so that the setting member is positioned to the tool and cannot be took down from the tool directly. The setting member can be changed when damaged, which is not only can prolong the life of the product, but also can storing more tools according to the requirement.

Abstract: This invention provides an ornamental container comprising (a) a container, consisting of transparent or semi-transparent materials, and (b) ornamental objects, comprising objects or patterns for projecting on the surface of the container. This invention further provides a method of manufacture which comprises placing objects or patterns on the surface of the transparent or semi-transparent container.

Abstract: A beam-type wiper blade reclosable package that includes a pair of package halves joined by an elongate compliant joint that preferably enables one of the package halves to function as a cover that can be closed over a base that includes a curved beam-type wiper blade compartment formed therein. The compartment includes a wiper blade beam or backbone seat and a wiping blade element land, an adapter clearance recess defining a lip that facilitates package opening and closing and wiper blade removal facilitating pockets. The compliant joint preferably is a living hinge of double fold construction that serves to strengthen the package when closed.

Abstract: A packaging system for soft-walled plastic containers of tapered or other non-cylindrical shapes has a supporting base to which the containers are secured, with a superposed positioning means engaging the upper portions of the containers; and load transfer spacer sheets extending upwardly in substantially coplanar relation with the tops of the containers, to support a superposed similar package, for palletizing. The package may be strapped, horizontally or vertically and used in plasti-wrapped multi-tier pallet loads. The supporting base may be a tray, which can be of the nesting variety.

Abstract: A rectangular prismatic carton and method for bulk packing pistons or other similar products are provided, which improve the fill efficiency of the product without increasing the risk of damaging a percentage of the packaged product. The carton comprises a carton having length l, width w, and height h, such that h is greater than l and w, the top and a bottom being formed by overlapping flaps. The carton has a ratio of the opening perimeter of the carton to the height of the carton is less than about 2. The carton provides a reduced opening cross-section that allows for improved fill efficiency when filling the carton with pistons or other product and leaving a volume of unfilled space remaining within the carton.

Abstract: Drug formulations for systemic drug delivery with improved stability and rapid onset of action are described herein. The formulations may be administered via buccal administration, sublingual administration, pulmonary delivery, nasal administration, subcutaneous administration, rectal administration, vaginal administration, or ocular administration. In the preferred embodiments, the formulations are administered sublingually or via subcutaneous injection. The formulations contain an active agent and one or more excipients, selected to increase the rate of dissolution. In the preferred embodiment, the drug is insulin, and the excipients include a metal chelator such as EDTA and an acid such as citric acid. Following administration, these formulations are rapidly absorbed by the oral mucosa when administered sublingually and are rapidly absorbed into the blood stream when administered by subcutaneous injection. In one embodiment, the composition is in the form of a dry powder.

Abstract: The present invention provides a child resistant blister pack for packing pharmaceutical solid dosage form comprising a blister sheet having a pattern of cavities/blisters, a rupturable cover foil laminated to the blister sheet covering and sealing the blisters and blister sheet containing the unit dosage forms is enfolded into a non-tearable paper/laminate card with an intrinsic pressure-sensitive permanent acrylic/rubber based adhesive, a polymeric film/laminate containing an intrinsic pressure-sensitive permanent acrylic/rubber based adhesive is placed on a non-tearable paper/laminate card in a precise manner, such that it corresponds with the individual cavities of the blister.

Abstract: A tamper-evident child resistant package suitable for pharmaceuticals and the like, the package having a front sheet with a plurality of apertures therein, a rear sheet having a plurality of tear strips, the front sheet and rear sheet being secured together about a portion of their periphery with the apertures and tear strips being in registry, a blister pack being mounted intermediate the front sheet and rear sheet and comprising a blister sheet having blister pockets projecting from a front side thereof with a rupturable foil layer being sealed to a back side, the blister pack being slidable between a first position wherein the blister pockets are aligned with the apertures of the front sheets and a second position wherein the blister packages are not aligned with the apertures of the front sheet.

Abstract: A child-resistant and senior-friendly unit dose package has a hollow container body and a tray with a plurality of items secured thereto for being dispensed from the container body. The container body has an end with an elongate opening defined by a rim, and the tray can be slid to a retracted position in which the tray is located within the container body and a dispensing position in which the tray extends at least partially through the opening of the container body. The package includes a separate cap removably securable to the container body to seal the opening and prevent access to the tray. Multiple simultaneous manipulations are required to remove the cap from the container body thereby providing a child-resistant connection.

Abstract: System 10 delivers specified medication(s) 10M of a specified dosage in a specified sequence (see FIG. 1A). Flexible cover lamina 12C is pressed into selective engagement base lamina 12B defining a series of sequential storage units 10X and 10Y and 10Z with frangible seal 14F (no hatching) and destruct seal 14D (double hatching). Sealed medication chamber 16M is proximate the destruct seal within each storage unit. Chamber access region 16R is proximate the frangible seal within each storage unit. Diagonal chamber seal 14S (single hatching) extends across each storage unit. Breachable bubble 16B is positioned within each chamber access region and expands under applied pressure towards the frangible seal of the storage unit (see FIGS. 1A and 1B). The expansion separates the opposed laminae until the bubble produces perimeter breach 12P (see FIG. 1C) in the frangible seal. Flexible peel flap 14C is formed by the flexible cover lamina along the breached frangible seal as the bubble breaches.

Abstract: A protective covering system and method can protect an electronic device. The system includes a skeletal frame member that attaches to the electronic device and a relatively soft surrounding frame or body into which the frame can be mounted.

Abstract: A method for carrying a semiconductor device includes: (a) providing semiconductor devices each having a main surface, a back surface, and a plurality of external terminals; (b) providing a tray having a front surface, a rear surface, an electronic tag imbedded in the tray, first concaved portions formed on the front surface, second concaved portions formed on the rear surface, the electronic tag constituted by a non-contact recognition type chip having a memory circuit in which recognizable information is stored, a depth of the first concaved portion is deeper than a depth of the second concaved portion; (c) housing the semiconductor devices into the first concaved portions respectively in such a manner that the back surface of the semiconductor device being oppose to a bottom of the first concaved portion; and (d) carrying the tray with the semiconductor devices.

Abstract: The invention relates to a conversion process for making olefin(s) using a molecular sieve catalyst composition. More specifically, the invention is directed to a process for converting a feedstock comprising an oxygenate in the presence of a molecular sieve catalyst composition, wherein the feedstock is free of or substantially free of metal salts.

Abstract: A diffuser particle separator may be integrated into a gas turbine engine to remove corrosive dust and salt particles from the engine's core air flow. The air flow may pass over a series of particle accumulator entrance orifices, trapping particles in a particle accumulator while allowing the air flow to continue unimpeded. Since dust deposits may become molten at high temperatures, removal of dust from the core and secondary airflow may be critical for long-life superalloy and ceramic components, particularly those with small diameter air-cooling holes and thermal barrier coatings.

Abstract: A filter includes a housing having a cavity. A media pack, which includes a filter media, is arranged within the cavity and includes a central opening extending between opposing ends of the media pack. A center tube is arranged within the central opening and extends out of the central opening beyond one of the ends to provide a first end. A relief valve is supported on the first end. The filter cartridge assembly is installed into the housing with the relief valve in sealing engagement with a tapping plate of the housing. The relief valve performs the function of a seal between the filter cartridge assembly and the tapping plate in addition to performing pressure relief functions.

Abstract: A filter assembly having a housing open at one end, and an annular filter element disposed in the housing. An end plate having elongated openings and auxiliary openings are arranged in a generally circular configuration radially equidistant from the center of the end plate. An outlet opening is disposed in the open end of the housing. The end plate is affixed to a lid which is secured to the end of the housing. A combination valve is retained between the annular filter element and the end plate. The combination valve includes an annular shoulder subdividing the elongated openings into inlet opening portions and bypass opening portions. The combination valve has a first portion that cooperates with the inlet opening portions in the end plate and a second portion that cooperates with the bypass opening portions. The second portion has more resistance to fluid flow than the first portion.

Abstract: The invention relates to blood treatment equipment comprising a blood treatment device which is part of an extracorporeal blood circulatory system. The equipment comprises a control unit (30) as well as a display and input unit (32) having a touch screen (33). In order to simplify the operation of the blood treatment equipment using the touch screen, the control unit (30) and the display and input unit (32) are suitable for representing various mode means on the touch screen (33) which correspond to the various time modes of the blood treatment. According to the invention, the control unit automatically instigates the beginning of the following time mode at the end of at least one time mode, this being indicated by a change in the representation of the selected mode means on the touch screen. It is especially advantageous to use sensors (9, 12) through whose measured values the control unit (30) identifies the end of one time mode and the beginning of the subsequent time mode.

Abstract: An apparatus, system and method for recovery of artifacts and eradication of invasive species in aquatic environments. The structure may comprise an elongate flexible bladder blanket divider having first and second ends. The structure may have an open bore vertical support operably coupled to the first and second ends. Each end extends into the open bore vertical support and rests on at least one apron bladder of an apron bladder bundle. The at least one apron bladder is contained in the open bore vertical support and at least one apron bladder is between the end of the vertical support and the bottom of the body of water. A method of using the apparatus, comprising providing an apparatus having variable volume first and second compartments separated by a flexible bladder blanket divider; and introducing agents through openings in the bladder to control the growth of or kill the invasive organisms.

Abstract: A top load service cartridge including filter media and a treatment agent storage and release cartridge is provided. The cartridge is configured for diffusion of the treatment agent from the treatment agent storage and release cartridge, into liquid flowing through the filter arrangement. Methods of assembly and descriptions of use are provided.

Abstract: An apparatus is provided that introduces rapidly spinning vortices in a fluid, including water. It incorporates a fluid system, or fluid source, with a vortex creation apparatus and a frequency generation device. The vortices prepare the fluid to have memorized electromagnetic frequency signatures of harmful materials erased, and a new, desirable signature introduced. The desirable frequency can be introduced though a number of means, such as electricity, sound waves, and magnetic fields, using such devices as power leads, speakers, transducers, and magnets. Frequencies from desirable materials can also be applied by contacting the fluid with the material, such as metallic strands of copper and silver. The desirable frequencies make the fluid an inhospitable environment for the biological contaminants, such as bacteria, algae, and fungi, reducing their numbers in the fluid.

Abstract: A skimmer device for collecting and retaining debris from a surface of a body of water. The skimmer device includes a buoyant body for floating on the water surface having a front and rear portions. A debris collecting channel passes between the front and rear portions, the skimmer device also including a propulsion system for moving the buoyant body through the body of water in the direction of the front portion. The propulsion system includes a plurality of electric motors, each of which is in functional engagement with the proximal end of a shaft, a propeller being positioned at the distal end of each shaft. The motors are capable of turning at the same or different speeds to enable the skimmer device to travel on a surface of a body of water in a predetermined direction. A debris bag is appended to the rear portion of the buoyant body at the debris collecting channel to capture debris entering the debris collecting channel at the front end of the buoyant body.

Abstract: A water filter is disclosed to include a housing formed of a top cover shell and a bottom cover shell, and a filter element mounted in the housing for filtrating water passing through the housing, the filter element containing nanosilver fabrics, nanocarbon fibers, calcium sulfite, KDF-55, and coconut shell active carbon.

Abstract: A filter system for filtering water and/or wastewater which includes an underdrain system having a plurality of laterals that are anchored to the floor of a filter by a hold-down assembly. Preferably, the hold-down assembly does not rely on grout or other substance that is applied in a viscous or semi-viscous state and subsequently hardened as the primary means for connecting the underdrain laterals to the floor of the filter. Preferably, the hold-down assembly includes hold-down clips that can move relative to an anchor assembly and corresponding underdrain blocks so that the hold-down clips can cooperate with any desired portion of the corresponding underdrain blocks.

Abstract: A hybrid water desalination system is provided. The desalination system includes a wind turbine configured to drive an electrical generator for producing electrical power and a mechanical vapor compression (MVC) desalination unit configured to receive electrical power from the electrical generator for driving a compressor of the desalination unit. The desalination system also includes a first converter coupled to the electrical generator and a second converter coupled to the compressor, wherein the first and second converters are coupled via a common direct current (DC) link.

Abstract: A fuel filter has a filter case and a filter element. The filter case defines a filtration chamber with a fuel inlet and a fuel outlet. The filter element is adapted to filter the fuel. The filter element is disposed within the filtration chamber and divides the filtration chamber into a first section on the side of the fuel outlet and a second section on the side of the fuel outlet. A control device controls the flow of the fuel within the first section, so that the fuel can flow within the first section along substantially the entire filter element.

Abstract: A process for treating biological oxygen demand (BOD), nitrogen and phosphorus containing wastewater, wherein the process includes providing wastewater influent to an oxygen-deficit aeration zone having activated sludge and mixing the wastewater influent with the activated sludge in the oxygen-deficit aeration zone to form a mixed liquor. The process further includes transferring the mixed liquor from the oxygen-deficit aeration zone to an oxygen-surplus aeration zone and transferring a portion of the mixed liquor from the oxygen-surplus aeration zone to a membrane filter wherein a filtrate is separated from sludge. In addition, the process includes recycling at least a portion of the sludge to the oxygen-deficit aeration zone as recycled activated sludge.

Abstract: A process for treating BOD, nitrogen and phosphorus containing wastewater, wherein the process includes providing wastewater influent into an anaerobic zone having activated sludge and mixing the wastewater influent with the activated sludge in the anaerobic zone to form a mixed liquor. The process further includes providing the mixed liquor into an oxygen-deficit aeration zone and recycling denitrified mixed liquor from the oxygen-deficit aeration zone to the anaerobic zone for mixing therein with wastewater. In addition, the process includes transferring the mixed liquor from the oxygen-deficit aeration zone to an oxygen-surplus aeration zone and transferring a portion of the mixed liquor from the oxygen-surplus aeration zone to a membrane filter wherein a filtrate is separated from sludge. The process also includes recycling at least a portion of the sludge to the oxygen-deficit aeration zone as recycled activated sludge.

Abstract: The present invention relates to a method for decreasing the contents of metals, metalloids, nitrate and nitrite, respectively, in raw water flowing through a basin (1), whereby water containing either oxygen, oxygen-releasing substances, metabolic reactions of naturally occurring micro-organisms or containing denitrification organisms and/or substrates therefore is intermittently introduced to the basin (1) through a number of satellite wells (2) arranged around at least one extraction well (3) for purified water.

Abstract: An aerated treatment of water is performed using a serially coupled reactor and flotation tank and is performed using so much activated sludge in the water that small bubbles from an aerator are entrained in the activated sludge, leading some of or all the activated sludge to flotate in the flotation tank. A reactor (1) and a flotation tank (36) for performing the process are equipped with at least one aerator (19, 20, 21, 22). A number of preferred processes and designs elaborate on the invention, including how the invention may be incorporated into existing wastewater treatment facilities and exploited there.

Abstract: Methods for the separation of biological materials from a sample mixture using a superficially porous particle coated (or clad) with a metal are provided herein. Methods using the support as a chromatographic column are also provided.

Abstract: Methods for the separation of phosphorus-containing biological materials from a sample mixture are provided. The methods use a solid support comprising a Ti(IV) metal-coated sorbent matrix. Methods using the support as a chromatographic column for separation are also provided. The present disclosure also provides methods for making a Ti(IV) metal-coated sorbent.

Abstract: A method for removal of dissolved materials and/or particles from a liquid stream comprising flocculation by vigorously mixing polysaccharides or hydrocolloids into the liquid stream and subsequent gelation of the polysaccharides or hydrocolloids with cations capable of gelling same. Large, strong gelled agglomerates of pollutant and polysaccharide or hydrocolloid are formed with the help of suitable cations. The gelled agglomerates are well suited to separation from a liquid stream by flotation, in a sieve, in a centrifuge, in a cyclone or via other conventional separation processes. Also described is a method for mixing of un-dissolved polysaccharide or hydrocolloid with a polluted aqueous stream by shearing the polysaccharide or hydrocolloid into the aqueous stream to improve logistics and provide economic savings in treatment of large volumes of water. Also described is the use of dilute solutions of polysaccharides for treatment of a variety of effluent streams.

Abstract: A method and apparatus for recycling a process fluid from a drain of a semiconductor process tool. The process fluid may be an acidic cobalt solution or an electroless cobalt solution used in a semiconductor process step to prevent electromigration in copper interconnects. The used process fluid is collected from the tool drain and recycled back to the tool inlet if a condition of the fluid is within a predetermined range. Otherwise, the used process fluid is drained from the system. The system may also operate in a bleed and feed mode where a portion of the used process fluid is periodically drained from the system.

Abstract: A unitary or modular, pre-cast, drive-down pit system suitable for use in a heavy equipment wash installation. The completed pit collects runoff generated by the washing of heavy equipment such as construction, industrial, farming, or road-building equipment. The pre-cast concrete separation unit and separate wall sections have tongue and groove mating ends that facilitate assembling the pit and provide for sealing against leakage of water. The separation unit has up to four chambers: a primary solids collection section; a secondary solids settling chamber; a free oil separating section; and a pump water holding section.

Abstract: A mass thickening apparatus comprising a system mass input for accepting a mass having a solid component and a liquid component. The apparatus also includes a pump operably connected to the system mass input for providing a pressure to the mass. The apparatus further includes a thickening assembly adapted to receive the mass therein, with the thickening assembly being configured to selectively remove a percentage of the liquid component from the mass as the mass travels through the thickening assembly by controlling an amount of the liquid component that can be removed from the mass.

Abstract: A brush drying rack for drying a brush having a handle portion and a bristle portion. The brush drying rack comprises a brush retaining aspect and first and second supports, the first and second supports being coupleable to the brush retaining aspect. The brush retaining aspect has at least one brush coupling feature. When coupled to the first and second supports, the brush retaining aspect extends therebetween and the at least one brush coupling feature is oriented for receiving the handle portion of the brush with the bristle portion of the brush extending downwardly.

Abstract: A tilt back merchandise display stand has a front panel tilted at the top rearwardly to its rear panel. The stand has two triangular side panel foldable inwardly along two vertical middle fold lines. A horizontal fold line formed at the middle position of the stand so that the stand may be folded into a collapsed condition. A single large rectangular merchandise display shelving or two separate merchandise display shelving may be mounted to the front panel with S-shaped hooks mounted to open mounting slots formed at the top edge and at the horizontal fold line of the front panel. A plurality of separate merchandise display trays with upper L-shaped tabs may also be mounted to the front panel with a plurality of vertical mounting slots formed along its side edges. The display stand is self-erectable with the provision of an elastic cord mounted between a brace panel and the rear panel within the stand.

Abstract: An open topped storage bin and frame system which allows for various widths of storage bins to be interchangeable and allow for each storage bin to pivot from a closed position within the frame to an open position where the open top is exposed outwardly of the frame. The bin may be provided with a lid. The upper surface of the storage bin and lid has a middle forward flat shape and front and rear upwardly curved portions forming stops. The frame includes at least one pair of vertically spaced, horizontal rods. Inward rotation of the bin is arrested when the front upwardly curved portion of the bin and lid comes into contact with the upper rod. Outward rotation of the bin is arrested when the rear upwardly curved portion of the bin and lid comes into contact with the upper rod.

Abstract: A modular rack assembly for storing goods includes a first rack having a base and a plurality of wall portions extending away from the base. Each of the plurality of wall portions is separated from an adjacent of the plurality of wall portions by a space. A lip extends around a perimeter of the base. A second rack is generally identical to the first rack such that, in a first position, the second rack is stackable on top of the first rack such that the first rack engages the base of the second rack in a plane, and the lip of the second rack extends within the plane. A method of transferring heat between atmosphere and chub logs on the rack assembly includes the steps of loading chub logs onto a first rack and then placing a second rack on top of the first rack.

Abstract: A foldup food holder made of stiff paperboard provides a base panel; a first side panel; a second side panel; a first end panel; a second end panel; a first tab; and a second tab; the side panels joined with the base panel; the end panels joined contiguously with and extensive from the side panels. The tabs are extensive from and joined contiguously with the end panels so that the tabs are positioned for engaging slots in the side panels when the apparatus is folded into a food holder or container.

Abstract: A skateboard/equipment display rack may also mount other forms of equipment and skateboard accessories. Said display rack may have interchangeable interfaces which may be formed for holding and retaining skateboards, sneakers, rollerblades, clothing or protective gear. Additionally, a storage tray may be included on the rack to store screws, tools, wheels, or other small accessories. A user may use the rack to display skateboards when not in use.

Abstract: A storage organizing system comprises a basket and a pair of slide rail assemblies. A wrap is engaged about some of the surfaces of the basket. The wrap includes a plurality of panels each of which are configured to substantially cover a side of the basket. One or more of the panels include fixation mechanisms, such as ties, clips, clasps, buttons, snaps, hooks, hook and loop material, etc, to affix the wrap to the basket.

Abstract: A slide bearing supporting frame for supporting and mounting a slide bearing to a rack having locking holes, includes at least one locking part penetrating at least one of the locking holes and for being locked to the at least one of the locking holes of the rack via a fixer, for allowing the slide bearing frame to be fixed on a rack with locking holes of different sizes.

Abstract: A crane mounting system to be used for mounting a crane onto a truck frame utilizes at least two shear plates with an L-shape profile. One part of each shear plate is interposed between a respective frame rail of the truck chassis and a respective end of a transverse mounting bar, while the orthogonal part of each shear plate is welded, at least partially, to the outer side of the respective frame rail. Interior holes on the transverse bars are threaded to accept inner tie down bolts while outer holes are drilled through to accept tie down studs. The shear plate acts as a wear plate/surface as the crane base sits on the transverse bars that in turn nests on the bent plate rather than directly on the chassis frame rail.

Abstract: A crane camera system employs a hook camera transmitter to send wireless signals vertically upward to a trolley receiver, which are then relayed by a trolley transmitter to the operator cabin. This allows line-of-sight wireless transmission of signals from the hook to the cabin to take place reliably without interference from obstructions on the work site. It is especially suitable for a tower-type overhead or boom-type crane. A trolley camera may also be provided for taking look-down images of the hook and transmitting them to the cabin in tandem with the hook camera signals. The hook and trolley camera images allows the operator to see more precisely the positioning of the hook relative to the ground, thereby greatly reducing the possibility of accidents or damaging collisions with persons or objects on the ground.

Abstract: A nursing device for feeding infants with a cleft lip and/or cleft pallet includes upper and lower portions. The upper portion includes a bottle with an opening in its top for containing a liquid, a nipple and a screw cap for maintaining the nipple in sealing engagement with the opening. A submersible pump is disposed in the bottom of the bottle and connected to an opening in the nipple by a tube. A lower portion of the device includes a motor and a magnetic coupling for activating the pump. A microprocessor control timer includes means for regulating the timing and flow of a feeding cycle with a display for help in regulating the feeding cycle.

Abstract: A bottle cap includes a mouthpiece having a dispensing orifice, a collar which extends downward from the mouthpiece to engage the bottle, a cover connected to the collar by a hinge and movable between open position and closed position covering the orifice, and a tamper-evident strap connecting the closed cover to the collar. The strap is hingeably joined to the collar by a lower portion of the strap and connected to the cover by a barbed upper portion. The upper portion cooperates with the cover to retain the strap to prevent manipulation of the strap to open the cover without severing the strap. The strap has a severable mid point which severs when the cover is first opened. When the cover is opened, both portions of the strap remain attached to the bottle and the lower portion swings away from the collar providing visible evidence of prior opening.

Abstract: A method of fabricating a diaphragm of a capacitive microphone device is provided. First, a substrate is provided, and a dielectric layer is formed on a first surface of the substrate. Than, a plurality of silicon spacers are formed on a surface of the dielectric layer, and the dielectric layer is patterned to form a plurality of dielectric bumps. Subsequently, a diaphragm layer is formed on a surface of the silicon spacers, a surface of the dielectric bumps, and the first surface of the substrate so that the diaphragm layer has a corrugate structure by virtue of the dielectric bumps. Thereafter, a planarization layer is formed on the diaphragm layer, and a second surface of the substrate is etched to form a plurality of openings corresponding to the corrugate structure. Following that, the dielectric bumps exposed through the openings are removed, and the planarization layer is removed.