摘要:
A process for integrating an alignment mark and a trench device. A substrate having first and second trenches is provided. The second trench is used as the alignment mark having a width larger than the first trench. The trench device is formed in each of the low portion of the first and second trenches, and then a first conductive layer is formed on the trench device in each of the first and second trenches. A second conductive layer is formed overlying the substrate and fills in the first trench and is simultaneously and conformably formed over the inner surface of the second trench. The second conductive layer and a portion of the first conductive layer in the second trench are removed and simultaneously leave a portion of the second conductive layer in the first trench by the etch back process.
摘要:
A semiconductor device is provided. An amorphous silicon layer that acts as a UV blocking layer replaces a conventional silicon-rich oxide (SRO) layer or the super silicon-rich oxide (SSRO) layer. By doing this, the process window is increased. In addition, silicon nitride sidewall spacer is formed inside the contact hole to prevent charge loss.
摘要:
An N-in-1 card connector (100), used for receiving at least two cards (a MS card A and a SD card B), includes an insulative housing (10), a number of first terminals (40) retained in the insulative housing, an ejector comprising a slider (30) moveably attached to the insulative housing, a floating member (60) floatingly received in the insulative housing and a plurality of second terminals (50) having respective parts retained with the floating member. The floating member remains at a lower position to stay clear of a first, narrower card (A) and is moveable to an upper position by a second, wider card (B). The second terminals are moveable together with the floating member at the upper position for engaging the second card.
摘要:
An electrical card connector includes a metal shield (2), an insulated housing (3) and a terminal module (4). The metal shield defines a receiving room, in which a memory card is insertable in a card inserting direction through an insert opening generally at a front end thereof. The insulated housing is shielded by the metal shield, and defines a receiving portion (34) extending therethrough and adjacent to a rear end thereof. The terminal module is received in the receiving portion of the insulated housing and comprises a pair of locking boards (44) assembling the terminal module on a printed circuit board (5). A plurality of terminals (31) are insert-molded in the terminal module for electrical connection to the memory card.
摘要:
A method for etching a deep trench in a substrate. A multi-layer hard mask structure is formed overlying the substrate, which includes a first hard mask layer and at least one second hard mask layer disposed thereon. The first hard mask layer is composed of a first boro-silicate glass (BSG) layer and an overlying first undoped silicon glass (USG) layer and the second is composed of a second BSG layer and an overlying second USG layer. A polysilicon layer is formed overlying the multi-layer hard mask structure and then etched to form an opening therein. The multi-layer hard mask structure and the underlying substrate under the opening are successively etched to simultaneously form the deep trench in the substrate and remove the polysilicon layer. The multi-layer hard mask structure is removed.
摘要:
A method of forming a bit line contact via. The method includes providing a substrate having a transistor with a gate electrode, drain region, and source region, forming a conductive layer overlying the drain region, conformally forming an insulating barrier layer overlying the substrate, blanketly forming a dielectric layer overlying the insulating barrier layer, and forming a via through the dielectric layer and insulating barrier layer, exposing the conductive layer.
摘要:
A method for forming a bottle trench in a substrate having a pad structure and a trench. First, a first insulating layer is formed in the trench, and a portion of the first insulating layer is removed to a certain depth of the trench. Next, a second insulating layer is formed in the trench, and portions of the second insulating layer on the pad structure and the sidewalls of the trench are removed. Next, an etching stop layer is formed in the trench, and a bottom portion of the etching stop layer is removed. Finally, the etching stop layer is used as a mask to remove the remaining second insulating layer and the first insulating layer.
摘要:
A method for forming a bottle-shaped trench. A semiconductor substrate having a pad stack layer thereon and a trench in a predetermined position is provided. A first dielectric layer is then formed on the lower sidewalls of the trench. Next, a second dielectric layer is formed to cover the upper sidewalls of the trench and the pad stack layer. Then, a protection layer is formed on the sidewalls portions of the second dielectric layer. The first dielectric layer is then removed to expose the lower portion of trench. Wet stripping is then carried out to increase the radius of the lower portion of the trench thereby forming a bottle-shaped trench.
摘要:
A method for manufacturing a buried-strap includes: forming a trench capacitor structure in a semiconductor substrate, wherein the trench capacitor structure has a doped polysilicon layer and an isolation collar covered by the doped polysilicon layer, and a top surface of the doped polysilicon layer is lower than a top surface of the semiconductor substrate such that a first recess is formed; sequentially forming a first resist layer, a second resist layer and a third resist layer over the semiconductor substrate; sequentially patterning the third resist layer, the second resist layer and the first resist layer, forming a patterned tri-layer resist layer over the semiconductor substrate; partially removing a portion of the doped polysilicon layer exposed by the patterned tri-layer resist layer to form a second recess; removing the patterned tri-layer resist layer; and forming an insulating layer in the second recess and a portion of the first recess.
摘要:
An electrical card connector (100), used for receiving a card (6) having a cutout (61), includes an insulative housing (1), a plurality of contacts (2) retained in the insulative housing, a metal shield (3) covering the insulative housing to define a card receiving room (8) and a card inserting port, and an ejector (4) assembled on the insulative housing. The metal shield includes a main plate (31) and a pair of vertical walls (32) extending from the main plate. A ridge (321) is formed at one of the vertical walls. The ejector includes a slider (41), a spring member (42) and a pin member (43) for cooperatively guiding/ejecting a card. The slider has a main portion (41) extending along the card's insertion/ejection direction. The main portion forms a protruding portion (412) facing toward the card receiving room and a confronting portion (413) facing toward the one vertical wall. The protruding portion is engaged with the cutout of the card when the card is moved into a locked position in such a manner that the ridge leans against the confronting portion and presses the slider towards the card receiving room.