A printed circuit board (PCB) mechanically supports and electrically connects electrical or electronic components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. Other. Designed Eutectic Die Attach using high temperature AuSn (Gold-Tin @280C). The via, however, is filled with a special low shrinkage epoxy specially formulated for this application. clickevent.stopPropagation(); Your typical PCB consists of one or more layers of copper laminated between sheet layers of a non-conductive substrate. They demonstrate excellent chemical resistance, thermal shock and impact resistance while also maintaining a wide operating temperature range. DIELECTRIC EPOXY COATING, NON CONDUCTIVE. View More: EPOXIES CATEGORY | ALL PTI PRODUCTS | MORE PRODUCT CATEGORIES | FIND A DISTRIBUTOR . It has a thermal conductivity of 0.25 W/mK. Looks like you … Essentially a detailed PCB silkscreen can help both the manufacturer and the engineer to locate and identify all the components. For this reason, non-conductive epoxy fillers have become very popular and these epoxy resins are also a cheaper option. }; Conductive epoxy, also known as electrically conductive adhesive or conductive glue, is a material that consists of an epoxy resin mixed with a conductive filler. Figure 10 Auger and Time-Pressure Dispense - Conductive vs. Non-Conductive Epoxy Non-Conductive Epoxy Process This die attach method allows an adhesive material to fill the void between the component and the package. COLOR: BMS SPECIFICATION: NONE. return false; Non-Conductive Via Fill, sometimes confused with Via Plug, still has copper plated vias to conduct power and heat. Fill all vias less than .35 mm diameter with nonconductive epoxy. Components are generally soldered onto the PCB to both electrically connect and mechanically fasten them to it. However, a popular alternative over the last few years has been the San-Ei Kagaku PHP-900 epoxy. ABLESTIK 104 can withstand continuous exposure at 230°C and has been to … We must remember that vias are still be plated with copper, like any other via on the PCB. The role of PTH is to deposit a thin layer of chemical copper on the hole wall of the non-conductive substrates that have been drilled by chemical method to serve as the base for electroplating copper behind. Figure 4 - Via in Pad - Filled with Epoxy. 6,000. However, Henkel also offers ECAs that are non-noble metal compatible which are ideal for handheld consumer devices. electroless plating is used to form the conductive part of plated through holes. You would want a conductive epoxy when conductivity is of paramount importance, particularly if you are filling a thermal via whose primary purpose is to dissipate heat. Contact us. Service operating temperature range from -60°F to +250°F. To protect sensitive components, adhesives are applied to PCBs as glob tops, coatings or underfills for chips. Whether you require vias flooded with mask, selective plugging in BGA areas, conductive and non-conductive epoxy fill, or fully plugged and via in pad, we have you covered. PT-428D. Product. Two part, ambient temperature curing epoxy potting/encapsulation compound. It does not contain solvents and is stable under high vacuum. We know everything there is to know about printed circuit boards, and we can help you find PCBs that suit the specific needs of your industry and your business. Conductive Fill: Generally, a conductive filled via will be used when heat or a large amount of current needs to be carried from one side of the board to another. You can opt for a conductive fill or a non-conductive fill. Please allow us to set Cookies. // a CSS selector that points to your search box The ink is a non-conductive epoxy ink. Whether you require vias flooded with mask, selective plugging in BGA areas, conductive and non-conductive epoxy fill, copper filled, or fully pluged and via … DIELECTRIC EPOXY COATING, NON CONDUCTIVE. When used for electrical contact, it is important that the metallization has similar potentials to avoid galvanic corro-sion and non-conductive oxides. Many soldered joints on PCBs are therefore being replaced with more flexible electrically conductive adhesives. While the via walls have copper and are complete, they still need to be filled. hr/°F. Non-conductive Epoxy Via Fill: Low-shrinkage epoxy. Choosing Your PCB Via Fill Supports High Temperature Tolerates most chemicals and 350F. These isotropic conductive adhesive (ICA) can be applied by syringe, stencil or screen printing and offer conductivity in all directions. What are the benefits and disadvantages of each option? If you are choosing a non-conductive epoxy for your via fill, you will often choose the Peters PP2795 epoxy. searchBoxSelector: '#searchBox', SDS. PCB is a copper laminated and non-conductive Printed Circuit Board, in which all electrical and electronic components are connected together in one common board with physical support for all components with base of board. Epoxy Technology is a leading manufacturer of specialty adhesives for use in advanced technology applications. Aspect ratio (AR) is the parameter that decides the reliability of a PCB. It’s fun to repair 4 layer boards like that, wheb you have a … Close Search. Non-conductive via fill, for via-in-pad, is an epoxy fill. Henkel manufacture a large range of non-conductive adhesives, each with characteristics suited for numerous applications/field, known by the name Loctite ABLESTIK (formerly known as Eccobond). Choosing Your PCB Via Fill 2-part conductive epoxy is a great solution for making repairing damaged pads. One part snap cure epoxy. Non-Conductive: The non-conductive products are similarly popularized by two products—Peters PP2795 epoxy and San-Ei Kagaku PHP-900 epoxy. This is because non-conductive epoxies usually provide a better CTE match with the laminate material that surrounds it. Home PCB Design Conductive and Non-Conductive Epoxy Fill. May 12, 2019 most recent articles. Download. In PCB design, via refers to a pad with a plated hole that connects copper tracks from one layer of … or . You may also find conducive epoxy via fills in older PCB designs simply because that is the type of fill that board has always used — since before the benefits of non-conductive epoxies were fully appreciated. Please fill out the form below and we'll respond shortly.