摘要:
Method for driving a plasma display panel, wherein an address reinforcement period is added between an address period and a sustain period, and a scan voltage Vw of positive polarity and a third DC voltage Zdc3 are applied, for inducing floating charges in discharge cells, whereby preventing erratic discharge caused by the floating charges at a high temperature.
摘要:
A lens and a light emitting device package formed by introducing surface mount technology (SMT) are disclosed. The lens includes a refractive portion which refracts incident light, and at least one surface mount portion, wherein a portion of the surface mount portion is formed in the refractive portion.
摘要:
A submount substrate for mounting a light emitting device and a method of fabricating the same, wherein since a submount substrate for mouthing a light emitting device in which a Zener diode device is integrated can be fabricated by means of a silicon bulk micromachining process without using a diffusion mask, some steps of processes related to the diffusion mask can be eliminated to reduce the manufacturing costs, and wherein since a light emitting device can be flip-chip bonded directly to a submount substrate for a light emitting device in which a Zener diode device is integrated, a process of packaging the light emitting device and the voltage regulator device can be simplified.
摘要:
A light emitting device package capable of emitting uniform white light and a method for manufacturing the same are disclosed. The light emitting device package includes a package body, an electrode formed on at least one surface of the package body, a light emitting device mounted on the package body, and a phosphor layer enclosing the light emitting device while having a uniform thickness around the light emitting device.
摘要:
Provided are a surface light source device and a backlight unit having the same. The surface light source device includes a main body with a plurality of lighting parts, and at least one electrode disposed on the lighting parts for discharging, said electrode being shaped in a partially different dimension depending the temperature difference(Δt) in the lighting parts. The electrode compensates brightness uniformity lowering below a predetermined value due to the temperature difference(Δt).
摘要:
The present invention is directed to a Zener diode and a method for fabricating the same. According to the present invention, a voltage regulator device can be fabricated by carrying out a diffusion process without using a diffusion mask. Further, a PNP (or NPN) Zener diode having a bidirectional threshold voltage characteristic or a PN Zener diode can be fabricated without any photolithographic process or using the minimum number of processes. Therefore, the number of processing steps can be reduced and the yield thereof can be increased.
摘要:
A light emitting device package and a method of manufacturing the same are disclosed. The light emitting device package includes a package structure, two diffusion layers formed on the package structure such that the two diffusion layers are electrically separated from each other, and first and second electrodes insulated from the package structure by an insulation film. The first and second electrodes are electrically connected with the two diffusion layers, respectively.
摘要:
The present invention relates to a light emitting device package and a method for manufacturing the same. The present invention has advantages in that a light emitting device is electrically connected to other devices without use of wire bonding, thereby saving a space for wire bonding and reducing the size of a package.
摘要:
A flip chip lead frame package includes a die and a lead frame having a die paddle and leads, and has a spacer to maintain a separation between the die and the die paddle. Also, methods for making the package are disclosed.
摘要:
A leadframe chip scale package includes a double leadframe assembly. The first leadframe has a central die paddle and peripheral leads, and the second leadframe, superimposed over the first leadframe in the package, has peripheral leads. The peripheral leads of both leadframes are situated in at least one row along an edge of the package, and in some embodiments in a row along each of the four edges of the package. The leads are patterned such that when the second leadframe is superimposed over the first leadframe, the leads do not contact each other; in a plan view, the leads of the first leadframe appear to be interdigitated with the leads of the second leadframe. The input/output contact portions of the first leadframe are exposed in a row of first contacts near or, usually, at the edge of the package, and the input/output contact portions of the second leadframe are exposed in a row of second contacts inboard from the row of first contacts. The contacts in the second row are staggered in relation to the contacts in the first row. Also, methods for making the package include providing a first leadframe having a die paddle and leads; providing a second leadframe having leads; providing an adhesive on a surface of one of the leadframes; aligning the leadframes (the second leadframe over the first leadframe); adhering the leadframes at the adhesive; wire bonding to connect the die to the double leadframe by connecting alternate pads on the die (1st, 3rd, 5th, etc.) with bond sites on one of the leadframes and by connecting the other pads on the die (2nd, 4th, 6th, etc.) with bond sites on the other one of the leadframes; encapsulating; and singulating. The invention provides for nearly double the number of input/output contacts as can be made in a conventional leadframe package, made using similar processes and design rules.