16 results about "Parylene coating" patented technology

A lens cover includes a main body and a parylene coating. The main body includes a base substrate and a plurality of optical lens elements. The base substrate is substantially planar and defines an outer perimeter. The plurality of optical lens elements is that extend from the base substrate and cooperates with the base substrate to provide an exterior surface and an interior surface of the lens cover. Each optical lens element of the plurality of optical lens elements are configured for alignment with a light emitting diode. The parylene coating is provided over the exterior surface and the interior surface. The plurality of optical lens elements protrude from the base substrate at the exterior surface. The lens cover is formed as a unitary one-piece construction such that the exterior surface extends continuously between the base substrate and each optical lens element to form a fluid impervious barrier therebetween.

The invention discloses a memristive element based on ultrathin parylene protection and a preparation method thereof, and the method comprises the following steps: uniformly depositing a parylene material layer on the surface of the memristive element through a parylene coating material to form a parylene film, and obtaining a parylene film protection layer / memristive element / parylene film protection layer composite structure, and finally obtaining the memristive element based on the super parylene protection. According to the memristive element, the compact pinhole-free structure, excellent chemical inertness and high barrier property of the parylene film are utilized, an omnibearing protection film is formed on the surface of the memristive element on the premise that the electrical property of the memristive element is not affected, the memristive element can obtain a long-term stable working environment, and the memristive element is protected. The interference of external humidity, corrosive gas and mechanical friction on the performance of the element is effectively resisted, the service life of the memristor element is remarkably prolonged, and meanwhile, the reliability and stability of the memristor element in complex application scenes such as flexible electronics and wearable equipment are guaranteed.

Aspects of the present disclosure involve various battery packs. In general, the battery pack includes a plurality of layers and an enclosure enclosing the plurality of layers. A cathode terminal and an anode terminal extend from a first face of the enclosure. The cathode terminal and the anode terminal are connected to the plurality of layers. A Parylene coating may cover an entire surface of the enclosure except for at least a portion of a surface of the first face.

A specific embodiment of the present invention provides a composite coating, manufacturing method, and device, comprising Coating I and Coating II, where Coating I is formed by plasma polymerization of a silane monomer containing an active functional group having affinity or reactivity with polymer molecules and a hydrolyzable group such as a halogen atom, an alkoxy group, or an acyloxy group, and Coating II is formed by vacuum vapor deposition of parylene on Coating I, and the composite coating improves the bonding strength and coverage of the parylene coating to the substrate.

This invention provides a high DC bias iron-silicon composite magnetic core, wherein the silicon content of the high DC bias iron-silicon composite magnetic core does not exceed 5.5%; the high DC bias iron-silicon composite magnetic core is insulatingly coated with Al₂O₃ / EP nanocomposite material during its preparation process to form an insulating coating; the insulating coating is further coated with a parylene coating. The high DC bias iron-silicon composite magnetic core of this application has a significantly reduced oxygen content and a significantly improved DC bias performance.

A container-and-product assembly, comprising a paper-based inflexible container, wherein the container comprises a rigid shell (1) based on pulp, and a parylene coating (2) applied at the container surface, wherein the container contains a liquid consumer product comprising a surfactant.

A semiconductor device includes a carrier comprising a recess, a semiconductor die disposed in the recess, and a parylene coating covering at least portions of the surfaces of the semiconductor die and the carrier.

The application discloses a manufacturing method of an ultrasonic catheter, the ultrasonic catheter and a forming die thereof. The manufacturing method of the ultrasonic catheter comprises the following steps: preparing an array stack; selecting a lead-out wire; coating a polymer material at a preset distance from one end of the lead-out wire to form a preformed tube; electrically connecting one end of the lead-out wire close to the preformed tube to the array stack; adopting split pouring to manufacture a sound-transparent protective layer coated on the periphery of the array stack and one end of the preformed tube close to the array stack; electrically connecting the other end of the lead-out wire away from the preformed tube to a circuit connector; and forming a Parylene coating layer on the outer surface of the sound-transparent protective layer. The Parylene coating layer enables the sound-transparent protective layer to better adapt to the vascular environment of the human body and meet the requirements for use in blood vessels. Therefore, the selection range of the manufacturing material of the sound-transparent protective layer is wider, and a material with a lower pouring temperature can be selected to manufacture the sound-transparent protective layer, so that the array stack is prevented from being separated due to heat, and the acoustic performance, consistency and qualification rate of the ultrasonic catheter are improved.

The application provides a polishing method for a Parylene coating on the surface of a medical puncture needle, a medical puncture needle and a device, and aims to solve the problems of precision control, coating damage and transition unevenness in the polishing process of a micron-level coating slope. The method comprises the following steps: matching corresponding grinding tool granularity and grinding process parameters according to the material type of the Parylene coating; segmentally grinding the transition area between the coating and the metal substrate, first coarsely grinding the transition area by using a flexible grinding head with relatively coarse granularity to form a slope sketch, and then finely grinding the transition area by using a resin diamond grinding head with finer granularity at a lower speed to improve the surface quality; and finally detecting the surface morphology and size precision of the conical slope. By matching the parameters based on the material characteristics and the "coarse grinding-fine grinding" segmented process, the method can realize micron-level precision, effectively avoid coating cracking and peeling, and form a smooth and flat coating transition slope.

The utility model relates to the field of coating devices, in particular to a parylene coating device with a cleaning function, which comprises a coating chamber, a liquid injection header pipe is arranged in the middle of the upper portion of the coating chamber, and a liquid supply box used for providing cleaning liquid is arranged on one side of the coating chamber. After a product is coated, the coating chamber is opened, the product is taken out, and the bracket in the coating chamber is taken out for cleaning, so that cleaning dead angles in the coating chamber are reduced, then the upper coating chamber is closed, the liquid injection header pipe is in threaded connection with the water outlet pipe on the liquid supply box, and then the liquid supply box is started; by means of the method, impurities on the cavity, gas and the surface of a product can be effectively removed, the cavity is clean, the impurities can be prevented from being mixed into a coating material, and the defects of pinholes, hard spots and the like of a coating film are prevented; and moreover, the parylene film can be tightly attached to the product, and the adhesive force and uniformity of the film layer are improved, so that the film coating quality is improved.

The application discloses a kind of 4,16 bis (m-methoxyphenyl) -[2,2] -p-xylene ring diatomic for preparing parylene coating resistant to electrochemical corrosion and its preparation method and application, specifically relates to a kind of 4,16 bis (m-methoxyphenyl) -[2,2] -p-xylene ring diatomic, its preparation method includes the following steps: S1, p-xylene ring diatomic is reacted with liquid bromine in the presence of catalyst, first solvent, and intermediate 1 is obtained;S2, intermediate 1 is reacted with 3-hydroxyphenylboronic acid in the presence of base salt, palladium catalyst and second solvent, and intermediate 2 is obtained;S3, intermediate 2 is reacted with methylating agent in the presence of base salt, third solvent, and the ring diatomic monomer is obtained.The phenyl parylene coating prepared from the above monomer shows excellent resistance to electrochemical corrosion, compared with the corrosion-resistant coating formed by the existing parylene monomer, not only the corrosion current density is low, and corrosion potential is high, has good application prospect in electronic product protection or medical instrument protection and the like.

Endoscopic control accessory, one surface of which is coated with a parylene coating by at least the following steps: Step 1 - Placing the endoscopic control accessory in a deposition chamber; Step 2 - Placing a parylene dimer in an evaporator; Step 3 - Heating the evaporator to a temperature at which the parylene dimer immediately sublimates to a dimer vapor; Step 4 - Transferring the dimer vapor to a pyrolysis oven, which is heated to a temperature at which the molecules of the dimer in the dimer vapor are split into monomer vapor; Step 5 - Directing the monomer vapor into the deposition chamber, which is kept at room temperature and in which the endoscopic control accessory is placed; and step 6 - Polymerization of the monomer vapor upon contact with the surface of the endoscopic control accessory, forming the parylene coating on the endoscopic control accessory.

The invention discloses a cyclic dimer monomer for preparing a parylene coating resistant to electrochemical corrosion as well as a preparation method and application of the cyclic dimer monomer, and particularly relates to a 4, 16-bis (m-methoxyphenyl)-[2, 2]-p-xylene cyclic dimer, the preparation method of the cyclic dimer monomer comprises the following steps: S1, reacting the p-xylene cyclic dimer with liquid bromine in the presence of a catalyst and a first solvent to obtain a p-xylene cyclic dimer; an intermediate 1 is obtained; s2, reacting the intermediate 1 with 3-hydroxyphenylboronic acid in the presence of alkali salt, a palladium catalyst and a second solvent to obtain an intermediate 2; and S3, reacting the intermediate 2 with a methylation reagent in the presence of alkali salt and a third solvent to obtain the cyclic dimer monomer. The benzene-substituted parylene coating prepared from the monomer shows excellent electrochemical corrosion resistance, and compared with a corrosion-resistant coating formed by an existing parylene monomer, the benzene-substituted parylene coating is low in corrosion current density and high in corrosion potential and has a good application prospect in the aspects of electronic product protection or medical instrument protection and the like.

The utility model provides a parylene coating device. The parylene coating device comprises a main pipeline and an exhaust pipe auxiliary pipeline, an evaporation unit, a cracking unit, a film forming unit, a cooling unit and a vacuum unit which are in airflow communication are sequentially arranged on the main pipeline; an air inlet of the exhaust pipe auxiliary pipeline is communicated with a pipeline between the evaporation unit and the film forming unit, and an air outlet of the exhaust pipe auxiliary pipeline is communicated with a pipeline between the film forming unit and the cooling unit. The device is additionally provided with the exhaust pipe auxiliary pipeline, so that formation of particles on the surface of the base material in the parylene coating process is effectively reduced.

The invention discloses a miniature atomic gas chamber for a magnetometer, which sequentially comprises a first glass substrate, a second glass substrate and a third glass substrate from top to bottom, an atmosphere chamber cavity for accommodating buffer gas and atomic vapor, a small rubidium source cavity for placing a solid rubidium source, and a micro-pore channel for connecting the large cavity and the small cavity to release rubidium atoms are respectively arranged in the second glass substrate; parylene coatings cover the middle areas, except the gold films, of the first glass substrate and the third glass substrate and the inner surfaces of all cavity pore channels, and light passing windows of the first glass substrate and the third glass substrate are aligned with the cavity of the atmosphere chamber to form a double-end optical path; the invention further discloses a manufacturing method. According to the method, the poly-p-xylylene film is selectively deposited in the key area, so that the inner surface of the atomic gas chamber is efficiently passivated, and meanwhile, the packaging strength and the optical transmittance are not influenced.

A process to recycle cellulose fiber pulp-based containers comprising a cellulose fiber pulp-based shell or substrate layer, a first barrier layer, and a second barrier layer in the form of a parylene coating, wherein the process comprises the steps of separating the second barrier layer from the first barrier layer, soaking the container comprising the first barrier layer or particles of said container in water, and collecting the fibers.