摘要:
A flash lens and a flash module employing the same. The flash lens includes a lens unit including an incident surface, a reflecting surface, and a light-emitting surface; and a lens seating portion disposed at a lower portion of an edge of the light-emitting surface, extending and protruding from the reflecting surface, and including a pattern formed in a lower surface thereof. In addition, the flash module according to an embodiment of the present invention may include the flash lens and a light emitting diode (LED) chip integrally formed with the flash lens.
摘要:
A flash lens and a flash module employing the same. The flash lens includes a lens unit including an incident surface, a reflecting surface, and a light-emitting surface; and a lens seating portion disposed at a lower portion of an edge of the light-emitting surface, extending and protruding from the reflecting surface, and including a pattern formed in a lower surface thereof. In addition, the flash module according to an embodiment of the present invention may include the flash lens and a light emitting diode (LED) chip integrally formed with the flash lens.
摘要:
Semiconductor memory devices include a first storage layer and a second storage layer, each of which includes at least one array, and a control layer for controlling access to the first storage layer and the second storage layer so as to write data to or read data from the array included in the first storage layer or the second storage layer in correspondence to a control signal. A memory capacity of the array included in the first storage layer is different from a memory capacity of the array included in the second storage layer.
摘要:
A capacitor for a semiconductor memory device and a method for manufacturing the same are provided. A lower electrode of a capacitor according to the present invention has a structure in which a first conductive layer and a second conductive layer are sequentially deposited and an HSG is selectively formed on the surface thereof. The first conductive layer is composed of an amorphous or a polycrystalline silicon film having a low concentration of impurities. The second conductive layer is composed of an amorphous silicon film having a high concentration of impurities. According to the present invention, it is possible to obtain a desirable Cmin/Cmax ratio in the lower electrode of the capacitor having an HSG silicon layer and to prevent diffusion of impurities from the lower electrode of the capacitor.
摘要:
A method for efficiently removing by-products produced in dry-etching a fabricated structure of a semiconductor device, particularly, a polycide structure. The method includes the steps of sequentially forming a polysilicon layer and a refractory metal silicide layer to overlie previously fabricated structures on a semiconductor substrate, dry-etching the polysilicon layer and the refractory metal silicide layer to form a patterned polysilicon layer and a patterned refractory metal silicide layer, and thermal treating the resultant structure to remove at least one kind of by-product produced in the dry-etching step at a temperature higher than the boiling point of any by-product.
摘要:
Semiconductor memory devices include a first storage layer and a second storage layer, each of which includes at least one array, and a control layer for controlling access to the first storage layer and the second storage layer so as to write data to or read data from the array included in the first storage layer or the second storage layer in correspondence to a control signal. A memory capacity of the array included in the first storage layer is different from a memory capacity of the array included in the second storage layer.