摘要:
A method for fabricating and testing a semiconductor wafer includes sputtering a TiW layer on a passivation layer and on pads, next sputtering a seed layer, made of gold, on the TiW layer, next forming a photoresist layer on the seed layer, next electroplating gold bumps on the seed layer exposed by openings in the photoresist layer, next removing the photoresist layer, next removing the seed layer not under the gold bumps, next etching the TiW layer not under the gold bumps with an etchant containing H2O2 at a temperature of between 35 and 50 degrees C, or with an etchant containing H2O2 and with ultrasonic waves applied to the etchant, next contacting probe tips of a probe card with some of the gold bumps, next cleaning the probe tips until repeating the step of contacting the probe tips with some of the gold bumps at greater than 100 times, and then after cleaning the probe tips, repeating the step of contacting the probe tips with some of the gold bumps.
摘要翻译:一种用于制造和测试半导体晶片的方法包括在钝化层和焊盘上溅射TiW层,接下来在TiW层上溅射由金构成的晶种层,接着在种子层上形成光致抗蚀剂层,接下来的电镀金 在光致抗蚀剂层中由开口暴露的晶种层上的突起,接下来去除光致抗蚀剂层,接下来除去不在金凸块之下的种子层,接着用含有H 2的蚀刻剂蚀刻不在金凸块之下的TiW层, 在35至50℃的温度下,或用含有H 2 O 2 O 2的蚀刻剂和超声波 应用于蚀刻剂,接下来将探针卡的探针尖端与一些金凸块接触,然后清洁探针尖端,直到重复将探针尖端与一些金凸块接触大于100次的步骤,然后清洁 探针尖端,重复探针尖端与其中一些接触的步骤 金块。
摘要:
An electronic device and a hinge assembly thereof are provided. The hinge assembly has a first fixing block, a second fixing block, a first linking rod and a second linking rod. The first fixing block has a first end and a second end. The second fixing block has a third end and a fourth end. The first linking rod has a fifth end slidably and rotatably connected to the second end and a sixth end rotatably connected to the fourth end. The second linking rod has a seventh end slidably and rotatably connected to the fourth end and an eighth end rotatably connected to the second end. The sixth end has a groove portion and a first inclined surface, and the eighth end has a second inclined surface contacting the first inclined surface.
摘要:
In one embodiment, a method of opening a passageway to a cavity includes providing a donor portion, forming a heating element adjacent to the donor portion, forming a first sacrificial slab abutting the donor portion, wherein the donor portion and the sacrificial slab are a shrinkable pair, forming a first cavity, a portion of the first cavity bounded by the first sacrificial slab, generating heat with the heating element, forming a first reduced volume slab from the first sacrificial slab using the generated heat and the donor portion, and forming a passageway to the first cavity by forming the first reduced volume slab.
摘要:
An implanted parylene tube shunt relieves intra-ocular pressure. The device is implanted with an open end in the anterior chamber of the eye, allowing excess fluid to be drained through the tube out of the eye. In one embodiment, only a first end of the tube implanted into the anterior chamber of the eye is open. Intra-ocular pressure (IOP) is then monitored, for example utilizing an implanted sensor. When IOP exceeds a critical valve, a practitioner intervenes, puncturing with a laser a thinned region of the tube lying outside the eye, thereby initiating drainage of fluid and relieving pressure. In accordance with alternative embodiments, the both ends of the tube are open, and the tube includes a one-way valve configured to permit drainage where IOP exceeds the critical value. The tube may include projecting barbs to anchor the tube in the eye without the need for sutures.
摘要:
An implanted parylene tube shunt relieves intra-ocular pressure. The device is implanted with an open end in the anterior chamber of the eye, allowing excess fluid to be drained through the tube out of the eye. In one embodiment, only a first end of the tube implanted into the anterior chamber of the eye is open. Intra-ocular pressure (IOP) is then monitored, for example utilizing an implanted sensor. When IOP exceeds a critical value, a practitioner intervenes, puncturing with a laser a thinned region of the tube lying outside the eye, thereby initiating drainage of fluid and relieving pressure. In accordance with alternative embodiments, the both ends of the tube are open, and the tube includes a one-way valve configured to permit drainage where IOP exceeds the critical value. The tube may include projecting barbs to anchor the tube in the eye without the need for sutures.
摘要:
Embodiments of an implantable device for delivering a therapeutic agent to a patient include a reservoir configured to contain a liquid comprising the therapeutic agent, a cannula in fluid communication with the reservoir, and means for forcing fluid from the reservoir into the cannula. Circuitry for controlling the means for forcing fluid from the reservoir into the cannula may be included.
摘要:
Embodiments of an implantable device for delivering a therapeutic agent to a patient include a reservoir configured to contain a liquid comprising the therapeutic agent, and a cannula in fluid communication with the reservoir. The cannula is shaped to facilitate insertion thereof into a patient's eyeball.
摘要:
An implantable device for delivering a therapeutic agent to a patient is provided. The device includes a reservoir configured to contain a liquid comprising the therapeutic agent. The device further includes a cannula in fluid communication with the reservoir. The cannula has an outlet configured to be in fluid communication with the patient. The device further includes a first electrode and a second electrode, at least one of the first electrode and the second electrode is planar. The device further includes a material in electrical communication with the first and second electrodes. A voltage applied between the first electrode and the second electrode produces gas from the material, the gas forcing the liquid to flow from the reservoir to the outlet.
摘要:
Systems and methods for monitoring analytes in real time using integrated chromatography systems and devices. Integrated microfluidic liquid chromatography devices and systems include multiple separation columns integrated into a single substrate. Using such a device, parallel analysis of multiple samples can be performed simultaneously and/or sequential analysis of a single sample can be performed simultaneously on a single chip or substrate. The devices and systems are well suited for use in high pressure liquid chromatography (HPLC) applications. HPLC chips and devices including embedded parylene channels can be fabricated using a single mask process.
摘要:
An electronic device and a hinge assembly thereof are provided. The hinge assembly includes a first and a second fixed block, a first and a second connecting rod, a damper rod and a fastener. The first fixed block has a first and a second end, the second fixed block has a third and a fourth end, and the first connecting rod has a fifth and a sixth end, wherein the fifth end is connected to the second end, and the sixth end is connected to the fourth end. The second connecting rod has a seventh connected to the fourth end, and an eighth end, connected to the second end and the sixth end. The damper rod is slidably disposed on the first fixed block, the fastener is fixed to the first fixed block, and a distal end of the damper rod is fastened into the fastener.