摘要:
Disclosed are a method of electroless nickel-gold plating an object and a printed circuit board. The method in accordance with an embodiment of the present invention includes: forming a first nickel plated layer on a surface of the object; forming a second nickel plated layer on the first nickel plated layer; and forming a gold plated layer on the second nickel plated layer.
摘要:
Disclosed are a method of electroless nickel-gold plating an object and a printed circuit board. The method in accordance with an embodiment of the present invention includes: forming a first nickel plated layer on a surface of the object; forming a second nickel plated layer on the first nickel plated layer; and forming a gold plated layer on the second nickel plated layer.
摘要:
The present invention relates to a method for forming a photoresist-laminated substrate including: preparing a laminated substrate having an insulating substrate and a metal layer; coating with an aerosol of metal nanoparticles on the metal layer; laminating a photoresist film on the metal layer coated with the aerosol of metal nanoparticles. The method of the present invention is a environmentally friendly method since an aerosol of metal nanoparticles is used, differentiated from the conventional wet process.
摘要:
The present invention relates to a conductive substrate, motor, vibration motor, and metal terminal for electrical contact having a gold-copper layer which improves electrical conductivity and abrasion resistance and excellent electrical durability. According to a preferred embodiment of the invention, a conductive substrate which comprises a base board, a copper layer formed on least one side of the base board and made of copper or a copper alloy, and a gold-copper layer formed on the copper layer and made of gold and copper alloy.
摘要:
The present invention relates to a method for forming a photoresist-laminated substrate including: preparing a laminated substrate having an insulating substrate and a metal layer; coating with an aerosol of metal nanoparticles on the metal layer; laminating a photoresist film on the metal layer coated with the aerosol of metal nanoparticles. The method of the present invention is a environmentally friendly method since an aerosol of metal nanoparticles is used, differentiated from the conventional wet process.
摘要:
An X-ray tube is disclosed. The X-ray tube can include a cathode configured to emit electrons, an anode that has a surface arranged parallel to an emission direction of the electrons and is configured to collide with the electrons and emit X-rays, and a guide positioned between the cathode and the anode to modify the direction in which the electrons travel such that the electrons collide with the surface of the anode. The X-ray tube according to an embodiment of the invention can be used to improve the unevenness in X-ray intensity.
摘要:
A net assembly which allows a user to easily and conveniently practice the launching, throwing or kicking of sports balls (such as baseballs, soccer balls and footballs) in a limited and/or indoor area, and is easily carried, kept or installed. In the net assembly, the net is appropriately tensioned, thus effectively stopping flying balls without failure. The net assembly has a U-shaped base pipe unit laid on a support surface. A main support pipe is mounted to an end of each side arm of the base pipe unit. The support pipe extends upwardly and is inclined outwardly relative to the side arm at an angle of 45°±10°. First and second tension pipes are coupled to each other using a joint, thus forming a tension pipe unit with a holding pin being provided at an outside end of the tension pipe unit for holding a net. The tension pipe unit is mounted to the support pipe at the lower end thereof.
摘要:
A golf practice net assembly which allows a user to easily and conveniently practice tee-shots in a limited and/or indoor area, and is easily carried, kept or installed. In the net assembly, the net is appropriately tensioned, thus effectively stopping flying balls without failure. The net assembly has a U-shaped base pipe unit laid on a support surface. A main support pipe is mounted to an end of each side arm of the base pipe unit. The support pipe extends upwardly and is inclined outwardly relative to the side arm at an angle of 45°±10°. First and second tension pipes are coupled to each other using a joint, thus forming a tension pipe unit with a holding pin being provided at an outside end of the tension pipe unit for holding a net. The tension pipe unit is mounted to the support pipe at the lower end thereof.