摘要:
실시 예의 발광 소자는 기판과, 기판 위에 서로 이격되어 배치된 제1 내지 제M(여기서, M은 2 이상의 양의 정수) 발광 셀 및 제1 내지 제M 발광 셀을 전기적으로 직렬 연결하는 제1 내지 제M-1 연결 배선을 포함하고, 제m (여기서, 1 ≤ m ≤ M) 발광 셀은 기판 위에 순차적으로 배치된 제1 도전형 반도체층, 활성층 및 제2 도전형 반도체층을 포함하고, 제n (여기서, 1 ≤ n ≤ M-1) 연결 배선은 제n 발광 셀의 제1 도전형 반도체층과 제n+1 발광 셀의 제2 도전형 반도체층을 연결하며, 서로 이격된 복수의 제1 가지 배선을 포함한다.
摘要:
A method of manufacturing Schottky diodes in a CMOS process includes forming wells, including first wells (16) for forming CMOS devices and second wells (18) for forming Schottky devices. Then, transistors are formed in the first wells, the second wells protected with a protection layer (20) and suicide contacts (40) formed to source and drain regions in the first wells. The protection layer is then removed, a Schottky material deposited and etched away except in a contact region in each second well to form a Schottky contact between the Schottky material (74) and each second well (18).
摘要:
Methods for manufacturing trench type semiconductor devices containing thermally unstable refill materials are provided. A disposable material is used to fill the trenches and is subsequently replaced by a thermally sensitive refill material after the high temperature processes are performed. Trench type semiconductor devices manufactured according to method embodiments are also provided.
摘要:
A semiconductor device of unpopular type has Schottky-contacts (6) laterally separated by regions in the form of additional layers (7, 7") of semiconductor material on top of a drift layer (3). Said additional layers being doped according to a conductivity type being opposite to the one of the drift layer. At least one (7") of the additional layers has a substantially larger lateral extension and thereby larger area of the interface to the drift layer than adjacent such layers (7) for facilitating the building-up of a sufficient voltage between that layer and the drift layer for injecting minority charge carriers into the drift layer upon surge for surge protection.
摘要:
One pnpn thyristor Thy1 and six diodes D1, D2, D3, D4, D5, D6 are formed in a first conductivity type semiconductor substrate. The elements are separated into six regions by a second conductivity type diffused layer shared with the anode of the thyristor Thy1. A double isolation diffused layer is disposed, particularly, between the region of the thyristor Thy1 and three pn diodes D1, D2, D6 and the remaining region of three pn diodes D3, D4, D5. A balance type surge protection circuit is constituted monolithically by surface connection.
摘要:
A Schottky rectifier includes a semiconductor structure having first and second opposing faces (12a and 12b, respectively) each extending to define an active semiconductor region (5) and a termination semiconductor region (10). The structure includes a cathode region (12c) and a drift region (12d) of the first conductivity type adjacent the first and second faces, respectively. The drift region has a lower net doping concentration than that of the cathode region. A plurality of trenches (30) extends from the second face into the semiconductor structure and defines a plurality of mesas (14) therein. At least one of the trenches is located in each of the active and the terminal semiconductor regions. A first insulating region (16) is located adjacent the structure in the plurality of trenches. A second insulating region (45) electrically isolated the active semiconductor region from the terminal semiconductor region. An anode electrode (18) is adjacent to and forms a Schottky rectifying contact with the structure at the second face and is adjacent to the first insulating region in the trenches. The anode electrode electrically connects together the plurality of trenches.
摘要:
A power rectifier having low on resistance, fast recovery times and very low forward voltage drop. In a preferred embodiment, the present invention provides a power rectifier device employing a vertical device structure, i.e., with current flow between the major surfaces of the discrete device. The device employs a large number of parallel connected cells (26), each comprising a MOSFET structure (10) with a gate to drain short via a common metallization (14). A self aligned body implant (24) and a shallow silicide drain contact region (14) integrated with a metal silicide drain contact define a narrow channel region (16) and allow very high cell density. This provides a low Vf path through the channel regions (16) of the MOSFET cells to the contact (12) on the other side of the integrated circuit. The present invention further provides a method for manufacturing a rectifier device which provides the above desirable device characteristics in a repeatable manner. Also, only two masking steps are required, reducing processing costs.