Electronics Forum | Wed May 20 10:51:40 EDT 1998 | Alan
| I pretty much have my old DI water problems solved, | but now (of course)I have new problems: | I was monitoring the degradation of water quality to | see how long it would take to get down to 2.05 Megohms | (is this too high to change the tanks?-
Electronics Forum | Mon May 18 13:18:25 EDT 1998 | Chrys
I'm reviewing my board fab spec. It calls for a minimum SnPb thickness of 50 microinches on HASL PWB's. I've looked at other specs that call out anything from 30 to 80 microinches, and others that just say the copper pad must be covered and soldera
Electronics Forum | Wed May 13 14:22:17 EDT 1998 | JoSi
Hi, There has been a lot of disputes in our company about changing present HASL to another Finishing which can provide more flatter pad surface in fine pitch applications. ( perhaps Ni/Au, OSP ) The target is to reduce solder defects, thus improve
Electronics Forum | Fri Apr 17 14:37:13 EDT 1998 | Justin Medernach
| We have to mount our SMD devices 0.1 to 0.4 mm off the pcb | PCb substrate to compensate for thermal stressing in a | Space enviroment. Has any one any ideas or contacts for | dissolvable pads. this only applies to leadless components Robert, Try
Electronics Forum | Mon Apr 13 21:43:47 EDT 1998 | Steve Gregory
I had a couple of typo's...when I talked about the detergent, I meant to say NON polluting detergent like Smart Sonic's...I didn't mean to insinuate that the detergent (R440) from Smart Sonic is...neither detergent is polluting...
Electronics Forum | Thu Apr 09 17:43:16 EDT 1998 | Larry
I have the same problem. Can empty reels (plastic) be reused or recycled? | Can anybody tell me what to do with IC tubes when we're | done with them? Plastics companies want tons and we only | generate about one hundred pounds a month. We have be
Electronics Forum | Mon Apr 06 17:58:28 EDT 1998 | Wayne Bracy
| Hi, | I have been assigned to purchase a SMT assembly line for | electronic ballasts used in compact energy saving lamps. | I have the circuit and list of components, but know nothing | about SMT. | Could anybody tell me where to start and what
Electronics Forum | Mon Apr 06 17:13:23 EDT 1998 | EARL MOON
| Hi, | I have been assigned to purchase a SMT assembly line for | electronic ballasts used in compact energy saving lamps. | I have the circuit and list of components, but know nothing | about SMT. | Could anybody tell me where to start and what
Electronics Forum | Tue Apr 07 09:53:20 EDT 1998 | Paul Foley
| | Hi, | | I have been assigned to purchase a SMT assembly line for | | electronic ballasts used in compact energy saving lamps. | | I have the circuit and list of components, but know nothing | | about SMT. | | Could anybody tell me where to sta
Electronics Forum | Mon Mar 30 12:46:14 EST 1998 | Justin Medernach
| Can someyone tell me where i can find some informations, | about optimal design of footpad for pasta dispensing. John, Check out IPC-SM-782. This refers to surface mount pad design for surface mounted components. The spec is available for purcha
